Which US Airports Blame Weather Most? IAD Leads at 8.9%
Weather accounts for 6.1% of US flight delays nationally, but at Washington Dulles it runs 8.9% — the highest share of any major US airport. Chicago O'Hare (8.5%) and Dallas Fort…
The FlightRecord Blog
Plain-English guides to flight delays and on-time performance, backed by 14 million US DOT flight records — the best times to fly, why flights run late, and how to check any flight, route, or airport.
Which Airlines Get Diverted Most Often? [2026 Data]
Diversions are rare on every major US airline, but rates still differ. Among the 15 carriers reporting to the DOT, JetBlue diverts about 0.4% of its flights — roughly 1 in 250 —…
Best and Worst US Airports for On-Time Flight Arrivals
Among 37 major US airports, Salt Lake City posts the best on-time arrival rate at 84.9%, while Reagan National trails furthest behind at just 73.5%. That gap matters because…
Do Monopoly Flight Routes Fly Worse? What 5,636 Routes Show
A single airline dominating a route does not make it less reliable, FlightRecord's flight data shows. Across 5,636 U.S. routes with real recent traffic, monopoly routes — where…
Why American Eagle Flights Don't Show as American Airlines
American Eagle flights are operated by regional carriers like Envoy Air and PSA Airlines, posting a 79.7% on-time rate versus American mainline's 74.7%. Both are wholly owned by…
Are Budget Airlines Less Reliable Than Legacy Carriers?
Yes — over the past two years, America's three ultra-low-cost carriers (Spirit, Frontier, and Allegiant) averaged a 74.5% on-time arrival rate, versus 79.5% for the five…