U.S. airline on-time performance dipped to 76.4% for full-year 2026, down from 78.1% in 2026, marking a multi-year slide. February 2026 marked the first measurable uptick of the new year, per DOT data released May 7, 2026  a modest but meaningful signal amid a turbulent start to 2026.

The first months of 2026 were rough for U.S. air travelers. TSA staffing shortages tied to a partial government shutdown, a fatal runway crash at LaGuardia in March, and a broader pattern of worsening punctuality had many passengers wondering whether domestic air travel was getting worse by the year. Then came the February 2026 data  the first sign of improvement in 2026  quietly released by the Bureau of Transportation Statistics (BTS) on May 7, 2026.

What Is U.S. Airline On-Time Performance in 2026, and How Is It Measured?

U.S. airline on-time performance measures the percentage of domestic flights that arrive at the gate within 15 minutes of their scheduled arrival time. The DOT tracks and publishes this data monthly through the Air Travel Consumer Report (ATCR). A flight arriving 16 minutes late counts as delayed  regardless of how close it was.

The full-year 2026 rate came in at 76.4%, down from 78.1% in 2026. That means roughly one in four domestic flights arrived late last year.

On-Time Performance History: How Did We Get Here?

According to Forbes (March 2026), major carriers  Delta, United, and American  have all become less punctual over the past five years. Meanwhile, budget carriers like Southwest, Frontier, and JetBlue have improved since 2026, though they still trail the larger carriers in absolute on-time rates.

What Drove the February 2026 Improvement in Airline On-Time Performance?

February 2026 showed the first positive movement of the year after a chaotic January marked by winter storms and TSA staffing gaps linked to the partial government shutdown. The DOT’s Airline Service Quality Performance data for February confirmed operated flight volumes continued to grow  from approximately 549,000 flights in February 2026 to 551,000 in February 2026  with the upward trend continuing into early 2026.

Factors behind the February rebound include:

• Reduced weather disruptions compared to January 2026
• Partial TSA staffing restoration after back pay began flowing March 30
• Airline schedule trimming, particularly at delay-prone hub airports
• Improved aircraft routing at carriers that had underperformed in Q4 2026

Airline On-Time Performance Rankings: Which U.S. Airline Is Most On-Time in 2026?

Based on full-year 2026 DOT data  the most complete dataset available as of mid-2026  here are the on-time arrival rankings for major U.S. carriers:

Hawaiian Airlines led the industry at 81.95%, though it now operates under a single FAA certificate with Alaska Airlines following their October 2026 merger. Delta claimed the #2 spot at 79.3% and led month-over-month in multiple periods throughout the year.

Who Is Better: Delta or United Airlines?

Delta outperforms United on on-time arrivals (79.3% vs. 76.9% in 2026) and charges significantly lower total fees. United, however, earned the title of “Most Reliable Airline” from WalletHub in 2026, citing the lowest rate of cancellations, mishandled luggage, and denied boardings when combined.

Choose Delta if: On-time arrivals and lower add-on costs are your priorities.
Choose United if: You want the fewest cancellations and care more about operational consistency than punctuality.

What’s the Worst Airline to Fly Right Now?

Frontier Airlines had the lowest on-time arrival rate among major U.S. carriers in 2026 at 70.7%  meaning nearly three in ten Frontier flights arrived late. Globally, Flighty’s 2026 report (which analyzed over 22 million flights) placed Frontier fourth on the world’s most-delayed list at 28% of flights delayed.

JetBlue deserves close attention too. Its December 2026 on-time rate dropped to just 62.0%  last among all reporting carriers that month. JetBlue’s heavy reliance on congested northeastern airports (JFK, Boston, Fort Lauderdale) makes it structurally vulnerable.

American Airlines rounds out the bottom three at 73.5%, with particular exposure at high-volume hubs like O’Hare, LaGuardia, and Charlotte.

What Are the Actual Airline Fees in 2026?

All major U.S. airlines raised checked bag fees in 2026. The typical first checked bag now costs $45  up $10 from the prior standard of $35, according to NerdWallet’s April 2026 analysis.

*JetBlue introduced surge pricing for baggage in 2026. On high-demand days, the first bag rises by $4 and the second by $10. Waiting until within 24 hours of departure adds another $10 per bag  pushing first bag fees as high as $59 and second bags to $79.

American Airlines note: Basic economy flyers on domestic routes pay an additional $5 per bag on tickets purchased on or after May 18, 2026. United Airlines charges $5 more per bag if you don’t prepay at least 24 hours before departure.

Delta wins on fees. Its average combined cost for two checked bags and a seat selection on a one-way trip is $124.99  $33.50 less than United and $67.51 less than JetBlue.

How Can You Look Up On-Time Flight Performance by Flight Number or Date?

The DOT’s TranStats database (transtats.bts.gov) lets you search historical on-time performance data by airline, route, and date. The Bureau of Transportation Statistics updates TranStats monthly with both marketing carrier and operating carrier data going back to 1987.

To check a specific flight’s performance history:

1. Visit transtats.bts.gov and select “On-Time Performance”
2. Enter the airline code and flight number
3. Filter by date range or specific month
4. Review the flight’s historical arrival distribution

Third-party tools like FlightAware and Flightradar24 also offer real-time and historical flight tracking by tail number, flight number, or route.

What Are the Top 5 Safest Airlines in the US in 2026?

Safety and on-time performance are different metrics. WalletHub’s 2026 safety rankings (based on 2020-2026 FAA incident data, fleet age, civil penalties, and injury rates) found:

1. Frontier Airlines  Safest in 2026 (zero fatal injuries, younger average fleet age)
2. SkyWest Airlines  Runner-up
3. Southwest Airlines  Full points for fatal injury category
4. Alaska Airlines Strong FAA compliance record
5. American Airlines  Solid safety score despite operational delays

Note: Delta and United received zero points in WalletHub’s “injuries in aviation incidents and accidents” subcategory for 2020-2026.

What Is the Best Airline to Fly Domestic in the US in 2026?

For domestic travel, the best airline depends on what you value most:

• Best overall: Southwest Airlines (WalletHub 2026 overall winner at 64.44/100)
• Best on-time: Hawaiian/Delta
• Lowest fees: Delta
• Most reliable: United Airlines
• Best budget option: Frontier Airlines (most affordable fares)
• Best comfort: JetBlue, Hawaiian Airlines, Southwest

Are Any New Airlines Starting in 2026?

No major new U.S. startup carriers launched in 2026 as of mid-year. The notable development is consolidation: Hawaiian Airlines and Alaska Airlines merged operations under a single FAA certificate in October 2026, effectively reducing the number of independent major carriers. Delta, United, and American are all expanding internationally, launching new routes to European cities  but no new domestic entrants have emerged.