DOT / BTS on-time filings
Know which flights actually land on time.
Look up a route, an airline or an airport and see how often its flights landed on time — and how late they ran when they didn't. Free, no sign-up. Every figure comes from the on-time performance filings carriers are required to make to the U.S. Department of Transportation, so it is a record of what happened rather than a prediction.
A flight is “on time” until it is
+15 min
Measured at the gate, not the wheels. Arrive 14 minutes late and the flight counts as on time; 15 and it counts as delayed. Every index here uses that federal rule, unchanged. Bureau of Transportation Statistics →
Serving 37 months of federal filings, June 2023 – June 2026.
Every figure traces to a Bureau of Transportation Statistics filing, with the months and carriers it came from named on the page.
Historical performance only — no live tracking, and no predictions dressed up as data.
No account, no email, nothing about you stored.
On-time arrival rates, typical and worst-case delays, and cancellations for every airline on a U.S. route — from the DOT's on-time filings.
Open tool →Connection Risk CalculatorHow often a given layover at a connecting airport actually works, from the historical arrival record of the inbound route.
Open tool →Every reporting U.S. airline ranked by on-time arrival rate over the last 12 months, with cancellation and diversion rates alongside — because a carrier can lift its on-time number by cancelling.
Open tool →Airline Head-to-HeadCompare any two U.S. airlines side by side — on-time arrival rate, cancellations, diversions, typical and worst-case delay, and delay causes — from the DOT's on-time performance filings.
Open tool →Departure and arrival reliability at a U.S. airport, month by month, with the DOT delay-cause split — carrier, weather, National Aviation System, security, and late-arriving aircraft.
Open tool →Best Time to FlyOn-time departure rate by scheduled hour for a U.S. airport — the folk rule to fly early, quantified per airport from the federal record.
Open tool →Best Month to FlyOn-time departure rate by calendar month for a U.S. airport — which times of year run late, pooled across several years of the federal record.
Open tool →