Check a flight's on-time record before you book.
Enter two U.S. airports and see how often each airline on that route arrived on time over the last 12 months, and how late the late flights ran. Free, no sign-up. The numbers are the U.S. government's own flight records, not reviews or predictions.
Use airport codes, like SFO or JFK.
Or open one:Chicago → New YorkNew York → Los AngelesLas Vegas → Los Angeles
Example · real figures
A real answer: San Francisco to Los Angeles
Over the last 12 months of records, 72.6% of flights on this route arrived on time. The typical flight got in 3 minutes early. The worst 1 in 10 ran at least 54 minutes late.
Each bar is one minute. Not drawn: 0.5% of flights arrived more than 30 minutes early and 4.3% more than 90 minutes late.
- Typical flight
- 3 min early
- Worst 1 in 10
- 54+ min late
- Cancelled
- 1.0%
“On time” means at the gate less than 15 minutes after the scheduled arrival. That is the U.S. government's definition, used here unchanged, and it is the yellow line. Bureau of Transportation Statistics →
SFO → LAX, the most-flown route in the records · Aug 2025 – Jul 2026 · 11,849 arrivals · U.S. DOT on-time filings
See this route airline by airline →Airlines, ranked by on-time arrivals
Across all 10 airlines, 77.9% of flights arrived on time (Aug 2025 – Jul 2026). A cancelled flight is not counted as a late one, so each airline's cancellation rate is shown next to its on-time rate.
- 1Hawaiian Airlines81.9%0.7% cancelled
- 2Delta Air Lines81.2%2.0% cancelled
- 3Alaska Airlines80.2%1.4% cancelled
- 4United Airlines78.8%1.6% cancelled
- 5American Airlines76.5%2.6% cancelled
- 6Southwest Airlines76.4%0.9% cancelled
- 7Allegiant Air74.1%0.7% cancelled
- 8Frontier Airlines73.1%1.9% cancelled
- 9Spirit Airlines72.8%3.9% cancelled
- 10JetBlue Airways72.3%3.1% cancelled
More you can look up
Routes & Connections
- Route Reliability CheckEvery airline on a route, by how often it arrived on time.
- Amtrak On-Time Performance by RouteCustomer on-time performance for every Amtrak route, quarter by quarter, against the federal 80 percent standard — with the delay-cause split between host railroads, Amtrak and third parties — from the FRA's quarterly filings under 49 CFR part 273.
- Connection Risk CalculatorHow often a layover of a given length would have been long enough, based on how late the first flight usually lands.
Where these numbers come from
- Source
- U.S. airlines have to report the scheduled and actual times of their domestic flights to the Department of Transportation. This site adds those reports up. It changes none of the government's definitions.
- Period
- June 2023 to July 2026, 38 months of reports. Every figure on the site names the months it covers.
- What it is not
- Not live flight tracking, and not a prediction. These are past results for U.S. domestic flights: they say what happened, not what your flight will do.
- Cost
- Free, with no account and no email. About the site →
Reading the numbers
- How Amtrak On-Time Performance Is Measured: The 2020 Rule, the 80% Standard and the Delay Split
- Busy Months Aren't Always Late Months: Volume vs. On-Time Rate by Month
- Why an Afternoon or Evening Connection Carries a Different Risk Than a Morning One