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Cheapest Airlines in the US: America’s Best Affordable Airlines

Budget travelers looking for economical flights are in search of flights with value that don’t strain their finances, making low-cost carriers (LCC) and ultra-low-cost carriers (ULCC) increasingly attractive options without excessive overhead charges imposed. Individuals should understand these carriers in terms of both overhead costs and passenger costs to make informed decisions when opting for them.

In this blog post, we examine both the best and worst domestic flight options, focusing on affordability factors affecting an airline’s appeal to budget travelers across the United States. Understanding US budget airlines is crucial in optimizing domestic travel expenses while creating memorable journeys across our borders.

Come with us as we navigate the USA’s cheapest airlines, unveiling low-cost airline options that can make domestic travel both cost-efficient and fulfilling.

Defining Low-Cost and Ultra-Low-Cost Carriers

In the competitive world of air travel, understanding the distinction between low-cost carriers and ultra-low-cost carriers is paramount for travelers seeking the cheapest flights around. Let’s unravel what sets these airlines apart and how their cost-saving strategies directly impact passengers.

Low-Cost Carriers

Low-cost carriers are airlines that streamline their operations and services to provide cheap flight options. These low-cost airlines often focus on minimizing overhead costs by employing strategies such as:

  • No-frills approach: LCCs typically offer basic services without the additional amenities provided by traditional carriers. This might include reduced in-flight services, no complimentary meals, and simplified seat assignments.
  • Direct booking: LCCs often encourage passengers to book directly through their websites to avoid third-party fees, contributing to overall cost savings.
  • Secondary airports: Choosing secondary airports over major hubs helps LCCs reduce landing fees and operational expenses, which translates to lower ticket prices for passengers.

Ultra-Low-Cost Carriers

Ultra-low-cost carriers take the concept of cost-cutting to the extreme. These airlines adopt more aggressive strategies to offer the cheapest possible fares, often at the expense of traditional comforts. Key characteristics of ULCCs include:

  • Basic amenities: ULCCs may provide no-frills services, with passengers paying extra for amenities like checked baggage, seat selection, and even in-flight beverages.
  • High seat density: ULCCs often configure their planes with higher seat density, maximizing the number of passengers onboard and spreading operational costs across more individuals.
  • Point-to-point routes: ULCCs may focus on point-to-point routes, avoiding costly hub-and-spoke models, and further reducing operational expenses.

Understanding the distinctions between low-cost and ultra-low-cost carriers empowers travelers to make informed choices based on their preferences and priorities. As we delve into America’s budget airlines, these insights will be crucial in evaluating each carrier’s overall appeal and value.

Evaluating Budget Airlines

When it comes to budget airlines and cheap flights, finding the right balance between affordability and a satisfactory flying experience is key. While the lure of low-cost and ultra-low-cost carriers may seem irresistible, it’s essential for travelers to delve beyond the price tag and consider various factors to ensure a seamless journey.

Flying Experience Matters

While cost is a significant factor, the flying experience shouldn’t be overlooked. Budget carriers often streamline services to cut expenses, which can translate to reduced amenities and a different in-flight atmosphere. Assessing factors such as legroom, seat comfort, in-flight services, and even overhead bins is crucial to ensure your journey is not only economical but also comfortable.

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Price vs. Value

Contrary to popular belief, low cost doesn’t always guarantee better prices compared to legacy carriers. Additional fees for services that are complimentary on traditional airlines can quickly add up, potentially making the overall cost comparable. It’s important to weigh the initial airline ticket price against any potential extras to determine the true value of your travel choice.

Specific Offerings and Limitations

Each budget airline comes with its own set of offerings and limitations. Some may excel in punctuality, while others prioritize a no-frills approach. Being well-informed about the specific policies on baggage, seat selection, and in-flight services is crucial for avoiding surprises and making the most of your budget-friendly journey.

Research and Compare

Before booking your flight, invest time in researching and comparing various budget airlines. Look beyond the ticket price and delve into customer reviews, on-time performance, and any hidden fees. Understanding the reputation and operational strengths and weaknesses of each airline will empower you to make a decision aligned with your preferences.

Additionally, keep yourself informed on any last-minute flight deals, as flight tickets can drop immensely days before the departure date, allowing you to save money and get a better deal.

Best Budget Airlines for Domestic Flights

As we explore the vast landscape of budget airlines, let’s turn our attention to those that stand out for domestic flights in the US. Different airlines provide different benefits, so being up-to-date with the latest updates matters. Let’s take a look at the best cheap airlines:

Southwest Airlines

Southwest Airlines, founded in 1971, has played a pivotal role in shaping the landscape of the American airline industry. Established with the mission of providing affordable and convenient air travel, Southwest initially operated exclusively within the state of Texas. Over the years, the airline strategically expanded its route network, offering flights to various destinations across the United States. Southwest’s unique business model, characterized by low operating costs, high-frequency point-to-point routes, and a steadfast commitment to customer service, has positioned it as one of the largest domestic carriers in the country.

Flying Experience

The flying experience with Southwest Airlines is notable for its passenger-friendly features. The airline prioritizes passenger comfort by providing a comfortable seat pitch, ensuring reasonable legroom for travelers. Moreover, Southwest distinguishes itself by offering complimentary services that are often charged for by other airlines. Passengers can enjoy free snacks, non-alcoholic beverages, and in-flight entertainment options, contributing to an enhanced overall flying experience.

Southwest Airlines stands out with its generous baggage policies. Passengers flying with Southwest are allowed two free checked bags, a policy that contrasts with the additional fees commonly associated with baggage on other carriers. This commitment to providing value to customers has contributed to Southwest’s reputation for customer satisfaction.

Unique Features

One of the unique features that sets Southwest apart is its open seating policy. Instead of assigned seats, passengers have the flexibility to choose their seats upon boarding, with boarding positions determined by check-in time. This approach not only allows for a more relaxed boarding process but also provides passengers with the freedom to select seats that suit their preferences.

In a customer-centric move, Southwest became one of the first major airlines to eliminate change fees. This policy allows passengers to change their flights without incurring additional charges, providing a level of flexibility that is often appreciated by travelers. Beyond its operational policies, Southwest has cultivated a distinct employee culture known as the “Southwest Spirit.” This culture, characterized by a focus on customer service, a sense of humor, and a positive working environment, contributes to the airline’s overall appeal.

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Avelo Airlines

Avelo Airlines, launched in April 2021, has swiftly carved a niche in the American airline industry. Positioned as an ultra-low-cost carrier, Avelo focuses on providing affordable and straightforward air travel options to leisure travelers. The airline’s operational strategy is marked by a commitment to point-to-point flights and a preference for smaller, secondary airports. This distinctive approach sets Avelo apart in a market dominated by traditional hub-and-spoke models.

Point-to-Point Flights and Smaller Airports

Avelo’s emphasis on point-to-point flights represents a departure from the hub-centric approach of many other carriers. By adopting a point-to-point model, Avelo aims to streamline travel between specific city pairs, reducing layovers and enhancing overall journey efficiency. Complementing this strategy is the airline’s choice of smaller airports. Steering away from major hubs allows Avelo to avoid congestion and potentially offer passengers a quicker and more convenient airport experience.

Analysis of Fares, Fees, and Pros and Cons


  • Ultra-low-cost model: Avelo is recognized for its ultra-low-cost model, providing competitive base fares. This affordability appeals to budget-conscious travelers seeking cost-effective air travel options.
  • Transparency: While base fares are enticing, passengers should be attentive to the potential impact of additional fees, as ultra-low-cost carriers often rely on ancillary revenue.


  • Baggage fees: Avelo typically imposes fees for checked and carry-on baggage, necessitating a careful review of baggage policies to avoid unexpected costs.
  • Seat selection: Additional charges may apply for passengers who opt for advanced seat selection.


  • Affordability: Avelo’s primary strength lies in its low-cost approach, making air travel accessible to a broader demographic.
  • Convenience: The focus on point-to-point flights and smaller airports contributes to a simplified and efficient travel experience.


  • Limited amenities: As is common among ultra-low-cost carriers, Avelo may provide fewer amenities compared to traditional airlines, leading to a no-frills experience. 
  • Potential additional costs: While the base fares are low, passengers should exercise caution regarding ancillary fees, which can accumulate and impact the overall cost of travel.

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JetBlue Airways

JetBlue Airways, established in 1998, has been a prominent player in the airline industry, recognized for its commitment to delivering quality service at competitive prices. Originating as a low-cost carrier, JetBlue set out to redefine the flying experience by combining affordability with customer-centric services. Over the years, the airline has evolved, expanding its route network and enhancing its offerings while maintaining its dedication to providing value for travelers.

JetBlue Airways Features

JetBlue is renowned for its focus on passenger comfort and in-flight experience. The airline has consistently offered an array of amenities, even in its standard economy class, setting it apart from many of its competitors. In-flight entertainment, including live TV and complimentary high-speed Wi-Fi, has become a hallmark of JetBlue flights. Comfortable seating with relatively spacious legroom adds to the overall positive experience for passengers.

Beyond the standard economy class, JetBlue introduced its premium service, Mint, providing a more luxurious and spacious experience. Mint features lie-flat seats, gourmet dining options, and additional perks over Blue Basic passengers, catering to travelers seeking an elevated journey and great deals.

In response to the dynamic challenges posed by the travel landscape, JetBlue demonstrated flexibility and customer-focused policies. Notably, the airline implemented a temporary waiver of change and cancellation fees during specific periods, acknowledging the evolving needs and uncertainties faced by travelers. This customer-friendly approach aims to provide passengers with the assurance and flexibility to adapt their travel plans without the financial burden of traditional change fees.

JetBlue’s decision to temporarily waive change and cancellation fees reflects its commitment to customer satisfaction and responsiveness to the ever-changing travel environment. By offering this flexibility, the airline acknowledges the importance of accommodating the shifting needs and preferences of its passengers, especially during times of unpredictability.

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Breeze Airways

Launched in 2021, Breeze Airways is a relatively recent addition to the airline industry, founded by industry veteran David Neeleman. Breeze sets itself apart through a unique point-to-point strategy, aiming to simplify air travel by offering non-stop flights between underserved routes. The airline’s approach focuses on connecting smaller cities and avoiding traditional hub-and-spoke models, thereby providing travelers with convenient, direct routes.

Fare Classes and Loyalty Program

Breeze Airways introduces a straightforward fare class system designed to cater to diverse passenger needs. The airline typically offers three classes: Nicest, Nicer, and Nice. Each class comes with varying levels of amenities and flexibility, allowing passengers to choose the option that best aligns with their preferences and travel requirements.

  • Nicest: This top-tier class may include additional perks such as extra legroom, priority boarding, and enhanced in-flight services.
  • Nicer: Positioned as a mid-tier option, Nicer provides a balance of comfort and affordability, catering to a broad range of travelers.
  • Nice: The basic class, Nice, offers cost-effective fares while ensuring a satisfactory travel experience.

Additionally, Breeze Airways offers a loyalty program, providing frequent flyers with opportunities to earn and redeem points for future travel. The program may include exclusive benefits, further incentivizing customer loyalty.

Free Changes and Cancellations

Breeze Airways distinguishes itself by offering passengers flexibility with free changes and cancellations under certain conditions. This customer-friendly policy provides travelers with the assurance that their plans can adapt without incurring additional fees. The specifics of this policy may vary based on the fare class selected, but the overarching commitment to accommodating changes with minimal financial impact aligns with Breeze’s dedication to simplifying and enhancing the air travel experience.

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Other Budget Airlines for Domestic Flights

The ones mentioned above remain one of the best low-cost airlines in the USA when it comes to budget-friendliness and customer-centric offerings, ensuring a balance between cost-effectiveness and a positive travel experience for passengers. However, there are other budget-friendly companies that strive to provide affordable travel options without sacrificing customer satisfaction. 

Sun Country Airlines

Sun Country Airlines, founded in 1982, has undergone a dynamic evolution, establishing itself as a notable player in the airline industry. Initially starting as a leisure-focused airline, Sun Country has weathered challenges and transitions to emerge as a carrier known for its unique blend of affordability and travel experiences. The airline’s growth trajectory has seen it expand its route network beyond its Minnesota roots to serve a diverse range of destinations.

Division of Economy into Three Categories and Additional Fees

Sun Country’s economy class is divided into three categories, each offering varying levels of amenities and services:

  • Economy Standard: Positioned as the basic fare, Economy Standard provides essential services, catering to budget-conscious travelers.
  • Economy Stretch: This category offers additional legroom, providing a more comfortable experience for passengers seeking extra space during their journey.
  • Economy Cabin Bundle: Positioned as a premium economy option, the Economy Cabin Bundle includes perks such as free seat selection, priority boarding, and a complimentary alcoholic beverage.

However, similar to many airlines, Sun Country may charge additional fees for various services, including checked baggage, seat selection, and in-flight amenities. Passengers should be aware of these fees and carefully review the airline’s policies to avoid unexpected costs.

Challenges Related to Limited Fleet and Date Flexibility

Sun Country Airlines faces challenges related to its relatively limited fleet size, which can impact operational flexibility and route availability. A smaller fleet may result in limitations on the frequency of flights and destinations served. Additionally, date flexibility can be constrained, potentially affecting passengers who require more options for scheduling their travels. Travelers should consider these factors when planning trips with Sun Country, especially if flexibility in travel dates is crucial.

Despite these challenges, Sun Country continues to adapt and evolve, seeking to overcome constraints and provide a positive experience for its passengers. The airline’s unique approach and commitment to serving both leisure and traditional markets contribute to its resilience in a competitive industry.

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Spirit Airlines

Spirit Airlines underwent a significant transformation to position itself as a budget carrier, redefining the landscape of budget-friendly air travel. By adopting this model, Spirit aimed to offer some of the lowest base fares in the industry. However, the trade-off comes in the form of extensive fees for various services. Passengers should be mindful of ancillary charges, including fees for carry-on and checked baggage, seat selection, and even printing boarding passes at the airport. Understanding and planning for these fees are crucial for travelers seeking to maximize cost-effectiveness.

Reputation for Poor Customer Service and Cramped Seating

Spirit Airlines has faced criticism for its customer service reputation and the perceived discomfort of its seating arrangements. The airline’s commitment to ultra-low-cost operations sometimes translates into minimal frills and tight seating configurations. While this approach contributes to lower base fares, it has also led to a perception of cramped conditions and a customer service reputation that has been less favorable compared to some traditional carriers. Travelers should consider their comfort preferences and expectations when choosing Spirit for their journeys.

Note on Upfront Fares versus Final Costs

While Spirit Airlines may lure travelers with enticing upfront fares, it is essential to approach these numbers with caution. The true cost of travel may significantly differ from the initially advertised prices due to the array of fees associated with various services. Passengers are advised to carefully review the airline’s fee structure, plan their trip accordingly, and factor in potential additional costs when comparing Spirit to other carriers. This cautionary note underscores the importance of transparency and awareness in navigating the budget-friendly landscape of ultra-low-cost carriers.

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Frontier Airlines

Frontier Airlines has undergone a transformative journey, positioning itself as a prominent player in the realm of ultra-low-cost carriers. Embracing this model, Frontier has redefined the approach to budget-friendly air travel, aiming to provide passengers with some of the most competitive base fares in the industry. The airline’s evolution into an ultra-low-cost carrier involves a strategic focus on minimizing operational expenses while offering affordable travel options to a broad spectrum of travelers.

Analysis of Advertised Fares and Additional Fees

Frontier Airlines distinguishes itself with attractively low advertised fares, drawing budget-conscious travelers to seek economical options. However, it’s crucial for passengers to approach these advertised fares with a discerning eye. Frontier’s ultra-low-cost model is accompanied by an extensive fee structure for various services. Travelers should be aware of additional charges for items such as carry-on and checked baggage, seat selection, and in-flight amenities. Navigating Frontier’s fee system is key to understanding the true cost of travel and making informed decisions.

Constraints on Flexibility and Seat Pitch

Frontier’s commitment to ultra-low-cost operations comes with certain trade-offs, including constraints on flexibility and seat pitch. The airline may operate on a point-to-point model with limited frequency on certain routes, potentially impacting travel date flexibility. Additionally, passengers should be mindful of the seating arrangements, as the ultra-low-cost approach sometimes translates into tighter seat pitches. Travelers with preferences for additional legroom or increased flexibility in travel dates should weigh these considerations against the cost advantages offered by Frontier.

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Allegiant Air

Founded in 1997, Allegiant Air has undergone a notable evolution, transitioning into a prominent ultra-low-cost carrier. The airline has strategically positioned itself in the market by focusing on cost-effective operations, allowing it to offer budget-friendly fares to a wide range of travelers. Allegiant’s history is marked by an emphasis on point-to-point flights and non-traditional operational practices, contributing to its unique standing in the airline industry.

Examination of Numerous Extra Fees and Operational Practices

Allegiant’s ultra-low-cost model is characterized by attractively low base fares, but passengers must navigate a landscape of numerous extra fees. These fees cover various aspects of the travel experience, including charges for carry-on and checked baggage, seat selection, and even specific seat types. Understanding and planning for these additional costs is essential for passengers seeking to maximize cost-effectiveness while flying with Allegiant. The airline’s operational practices, such as the use of smaller airports, contribute to its ability to maintain low base fares.

Inconvenience Due to Serving Primarily Secondary Airports

A notable aspect of Allegiant’s operational strategy is its focus on serving primarily secondary airports rather than major hubs. While this approach allows the airline to avoid the congestion and costs associated with larger airports, it can result in inconvenience for some passengers. Travelers should be prepared for potentially longer commutes to and from these secondary airports, as well as limited connectivity compared to carriers serving major hubs. The trade-off between lower fares and the inconvenience of secondary airports is a consideration for those evaluating Allegiant as their airline of choice.

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How to Pick Between the Cheapest Airlines in the USA 

In conclusion, navigating the skies of the United States on a budget is a multi-faceted journey that demands careful consideration of various factors. America’s cheapest airlines present a spectrum of affordability, with some standing out as the best options for budget-conscious travelers, while others may leave passengers grappling with hidden fees and subpar services. Identifying the cheapest airlines requires a balance between cost, amenities, and overall customer satisfaction. While some carriers excel in providing affordable travel options without compromising on quality, others may fall short of expectations. In the dynamic landscape of air travel, finding the right balance between price and value is essential for a seamless and economical journey through the vast skies of the United States.

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