PlainFlights
2020–2025 data Federal BTS source Free & open
Bureau of Transportation Statistics · 2020–2025

How reliable is your flight, really?

On-time rates, delay causes, and cancellation patterns for every major U.S. airline, airport, and route — straight from the federal BTS record.

BTS-powered U.S. flight stats: on-time rates and delay causes for 382 airports, 18 airlines, and 4,927 routes (2020–2025).

The national picture

Across 38.3 million U.S. domestic flights from 2020 to 2025, 79% arrived within 15 minutes of schedule — but on-time odds swing widely by airline, airport, route, and time of year.

79%
arrived on time (within 15 min)
38.3 million
flights analyzed, 2020–2025
18.8%
delayed on arrival
2.2%
cancelled

On-time, delayed, and cancelled shares are computed directly from the BTS On-Time Performance record — no estimates.

Airports

382

Airlines

18

Total Flights

38,341,455

Avg On-Time

79%

All tracked U.S. flights — flight delay tier distribution Stacked horizontal bar showing what percent of All tracked U.S. flights flights fell into each Bureau of Transportation Statistics delay tier: on-time (under 15 minutes late), delayed (15-60 minutes), heavily delayed (60-120 minutes), severe (120+ minutes), and cancelled. All tracked U.S. flights Flight delay tiers · BTS On-Time Performance methodology 79.0% 18.8% 0% 100% On time <15m · 79.0% Delayed 15–60m · 18.8% Cancelled cnx · 2.2%
Tiers follow Bureau of Transportation Statistics On-Time Performance definitions — a flight is on-time if it arrives within 15 minutes of schedule.
On-time tier breakdown across all tracked U.S. flights, from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) on-time performance data.

Reporting Carriers

18

Routes Tracked

4,927

Coverage Years

2020–2025

Source

DOT BTS

Industry on-time rate 79.0%

Busiest Airports

View all
# Airport City Flights On-Time Avg Delay
1 ATL — Atlanta, GA Atlanta, GA 3,758,561 83.7% 72.9 min
2 DFW — Dallas/Fort Worth, TX Dallas/Fort Worth, TX 3,395,134 78.5% 82.9 min
3 DEN — Denver, CO Denver, CO 3,293,040 78.9% 70.9 min
4 ORD — Chicago, IL Chicago, IL 3,114,086 81% 81.9 min
5 CLT — Charlotte, NC Charlotte, NC 2,345,248 82% 81.1 min
6 LAX — Los Angeles, CA Los Angeles, CA 2,137,032 82.8% 72.9 min
7 PHX — Phoenix, AZ Phoenix, AZ 2,030,209 81.7% 71.3 min
8 LAS — Las Vegas, NV Las Vegas, NV 1,986,833 78% 65.8 min
9 SEA — Seattle, WA Seattle, WA 1,871,155 83.1% 63.4 min
10 MCO — Orlando, FL Orlando, FL 1,718,833 76.7% 75.2 min

Top Airlines by On-Time Performance

Full ranking

Frequently Asked Questions

What data does PlainFlights provide?

PlainFlights provides on-time performance data from the Bureau of Transportation Statistics covering 38.3 million flight segments, 382 airports, and 18 airlines from 2020-2024.

How is on-time performance calculated?

A flight is considered on time if it arrives within 15 minutes of its scheduled arrival time, following the standard BTS definition.

Where does PlainFlights data come from?

All data comes from the Bureau of Transportation Statistics On-Time Performance database, reported monthly by U.S. airlines.

Flight Guides

Learn how to read and use federal flight performance data.

How to use this data

On-time performance is the single best predictor of a smooth trip — and it's knowable before you book.

  • Check your airline first — the gap between the most and least reliable carriers runs well over 10 points. Airline rankings
  • Look up your departure airport’s delay profile, top delay cause, and worst months. Browse airports
  • Deciding between two airports or hubs? Put them side by side. Compare airports
  • Read the original state-level delay analysis drawn entirely from this database. State delay research

On-time means arrival within 15 minutes of schedule (the federal BTS standard). Cancelled and diverted flights are reported separately and excluded from on-time rates.