The gap between budget and legacy carriers is closing fast. For years, travelers assumed that spending more on a ticket with Delta, United, or American automatically meant a better experience. That assumption is increasingly hard to defend. Recent data from the Wall Street Journal’s 2025 airline rankings and J.D. Power’s North America Airline Satisfaction Study tell a more complicated story, one where several low-cost and budget carriers are outpacing their full-service rivals on the metrics that actually matter: on-time arrivals, cancellation rates, baggage handling, and overall passenger satisfaction. Here are six budget airlines that are genuinely outperforming major carriers right now.
1. Southwest Airlines – The Punctuality Powerhouse
Southwest Airlines took the top overall spot in 2025’s Wall Street Journal airline rankings, ending Delta’s four-year winning streak. The Dallas-based carrier logged the fewest customer complaints and tarmac delays, and ranked second in both on-time arrivals and the rate of cancelled flights. That’s a remarkable achievement for a carrier that competes in the same domestic market as American, United, and Delta. For budget-conscious travelers who still want reliability, those numbers are hard to ignore.
According to the Department of Transportation’s Air Traffic Consumer Report, only 0.6% of Southwest’s June 2025 flights were cancelled, one of the lowest figures in the industry. Aviation analytics firm Cirium awarded Southwest the title of “most on-time airline” after an impressive 82.27% of its 2024 flights arrived on time. According to the Bureau of Transportation Statistics, Southwest held a 17.3% domestic market share in the United States between November 2023 and October 2024, surpassing United Airlines at 15.9% and sitting just behind Delta and American.
2. Avelo Airlines – The Reliability Dark Horse
Avelo Airlines delivered an industry-leading on-time performance of 85.1% through the first ten months of 2024, compared to an industry average of 77%, alongside the lowest flight cancellation rate in the same period. That number puts it ahead of every major legacy carrier in the U.S. by a meaningful margin. Most travelers haven’t heard of Avelo, which launched in 2021, but the data suggests they should be paying attention.
Families who fly with Avelo are automatically seated together, the airline waives all online booking fees, and most importantly, it does not oversell flights. That has helped make Avelo one of the most reliable airlines in the U.S. Like most budget airlines, Avelo charges additional fees for various services, though its fees are far more reasonable than many. A carry-on bag starts at $25 each way, a checked bag starts at $20 each way, and extra legroom seats start at just $6 per way. For travelers who value getting there on time over onboard frills, Avelo is a genuinely compelling option.
3. Allegiant Air – The Vacation Route Specialist
Budget carrier Allegiant came in second overall in the Wall Street Journal’s 2025 airline rankings, posting the lowest cancellation rate of 0.55% and mishandling the fewest bags. For context, American Airlines posted a 2.2% cancellation rate in the same period, which was ranked worst among all carriers measured. On two of the most critical practical metrics for travelers, Allegiant was beating the big names outright.
According to a PIRG study, Allegiant reported the nation’s lowest number of bag mishandling complaints in 2024, and the same study found that Allegiant Air did not bump a single passenger all year, a feat most competing airlines cannot claim. On June 24, 2024, Allegiant Air was voted the 2024 Best Low-Cost Airline in North America by Skytrax. Allegiant’s success stems from its focus on point-to-point leisure travel, bypassing traditional airline hubs and linking secondary cities directly to popular vacation destinations, positioning it as a low-cost alternative for travelers who might otherwise drive or take multi-stop flights with major carriers.
4. JetBlue Airways – The Low-Cost Carrier That Doesn’t Feel Low-Cost
JetBlue Airways got its start as a low-cost airline but, unlike others in that category, never operated a stripped-down selection of amenities. Instead, it offered perks once only associated with legacy carriers, which won it a loyal following. Today JetBlue serves nearly 100 cities in the United States and a handful of international destinations. That’s a meaningful footprint for a carrier still classified alongside budget airlines in most industry comparisons.
Despite being a low-cost airline, JetBlue stands out for its customer service and in-flight amenities. Of all U.S. airlines, including non-low-cost providers like United, JetBlue has the largest economy seats. Airlines such as Southwest and JetBlue offer great value with minimal extra fees and a solid flying experience. When major carriers like American have been slapped with lawsuits over wheelchair handling and cited for poor reliability, JetBlue’s combination of spacious seating and genuine customer care represents a real edge for economy travelers.
5. Spirit Airlines – The Surprising 2025 On-Time Performer
Spirit finished third among large U.S. carriers in 2025 on-time performance, just behind Alaska Airlines, with a rate of 78.8%. That’s a significant improvement compared to Spirit’s 74.5% on-time rate in 2024, when it ranked sixth best among the ten largest North American carriers. Most passengers would be surprised to learn that Spirit outperformed United and American on this particular metric in 2025. The airline’s strong improvement came during a year in which it emerged from a Chapter 11 bankruptcy restructuring in March, only to re-enter Chapter 11 in late August.
Some of Spirit’s improvement, according to Cirium chief marketing officer Mike Malik, “obviously has to do with the fact that they are a much smaller operation and much more tightly controlled.” But Malik also noted that Spirit put more emphasis on timeliness in 2025, adding: “When an airline understands that the schedule is what they are selling, they focus on that, they just become a better operation.” Though budget airlines still generally perform poorly on overall customer satisfaction scores, they showed the biggest improvements in the ACSI Travel Study, with Spirit seeing the greatest score increase of any carrier and Frontier and Allegiant also posting big jumps.
6. Breeze Airways – The No-Fee Flexibility Challenger
Breeze Airways has a limited scope but excels with one standout feature: the airline does not charge passengers for changing or canceling their flights. While Allegiant offers a similar benefit, passengers must pay for its Trip Flex option. With Breeze, that flexibility comes built in. In an era when legacy carriers have been quietly stacking fees on everything from seat selection to basic boarding, that policy is genuinely rare. Breeze Airways took to the skies in 2021 and has been carving out a niche by connecting underserved city pairs that major carriers largely ignore.
Researchers attribute rising satisfaction scores among budget carriers to their value compared with full-service carriers. As one analyst noted, customers are likely feeling more satisfied with budget airline ticket purchases, particularly in light of legacy airlines’ additional fees. Budget airlines notoriously charge high fees, but full-service carriers have recently piled on their own fees too. According to J.D. Power, overall satisfaction among travelers on North American airlines during the 12-month period from March 2024 to May 2025 was up 6 points over 2024, but the gains were not consistent across the board. Passengers who flew economy and basic economy were the most satisfied, driving an 8-point increase, while those in premium economy and first/business class were actually less satisfied year-over-year. For Breeze travelers flying in the economy segment the airline targets, that trend is very much working in their favor.
