FlightRecord

US Flight Delays in April 2025

By Sharon Ben-Moshe · US DOT data · last updated 2026-07-01

In April 2025, US airlines operated 583,950 domestic flights and 80% arrived on time, essentially flat versus March 2025. Republic Airways led the reporting carriers at 84% on time; Frontier Airlines trailed at 73%.

Flights
583,950
On-time
80%
arrived <15 min late
Avg delay
15 min
Cancelled
0.8%
vs Mar 2025
-0.0 pts
on-time change

Airline on-time rates in April 2025

Reporting carriers with at least 1,000 flights in the month.

AirlineOn-timevs prior monthAvg delayFlights
Republic Airways84%-0.5 pts10 min28,384
Spirit Airlines83%+1.9 pts13 min18,303
Hawaiian Airlines82%-0.6 pts9 min6,559
JetBlue Airways82%+5.4 pts12 min20,002
SkyWest Airlines82%+2.3 pts15 min69,319
Delta Air Lines82%+0.6 pts13 min84,188
United Airlines82%-1.0 pts14 min64,256
Alaska Airlines81%+0.1 pts10 min19,025
Southwest Airlines81%-1.3 pts12 min117,622
Allegiant Air79%+1.5 pts17 min10,926
Envoy Air78%-1.1 pts15 min24,343
American Airlines75%-1.3 pts20 min82,261
PSA Airlines74%-0.2 pts22 min21,311
Frontier Airlines73%-1.3 pts23 min17,451

Most delayed large airports

  1. DFWDallas/Fort Worth71%
  2. DALDallas74%
  3. DENDenver76%
  4. HOUHouston77%
  5. MIAMiami77%

Most reliable large airports

  1. OGGKahului88%
  2. HNLHonolulu88%
  3. IADWashington87%
  4. CLECleveland87%
  5. PDXPortland87%

Most delay-prone routes in April 2025

Routes with at least 60 flights in the month.

  1. DFWECP45%
  2. ATLEWR52%
  3. DENRIC52%
  4. SLCEWR53%
  5. DFWCLT55%
  6. DFWRSW56%
  7. IADEWR56%
  8. DFWCID57%

National figures are flight-weighted averages across all reporting carriers for the month; see the methodology for definitions and limitations.

More reports

Based on 583,950 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.