DFW to IAD flight delays
Dallas/Fort Worth, TX (DFW) Washington, VA (IAD) · 1,172 miles
1,928 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
78.21%
Arrived on time
Within 15 minutes of schedule
2.28%
Cancelled
Share of scheduled flights
80 min
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Frontier Airlines arrived on time 18.2 points more often than American Airlines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 80 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The season swings this route hard. In January it ran 21.1 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
This route does better than its own airport. Departures from DFW overall run 7 points less punctual than this particular one — so whatever congestion DFW has, this route is largely escaping it.
Which airline should you fly on this route?
Over January 2025 – August 2026, Frontier Airlines arrived on time most often on DFW to IAD. American Airlines was late most often. Flights ran closest to schedule in January and worst in July.
Every airline on DFW to IAD
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| United Airlines | 915 | 84.42% | 0.98% | 93 min | B |
| American Airlines | 843 | 69.67% | 3.68% | 71 min | F |
| Frontier Airlines | 161 | 87.9% | 2.48% | 81 min | B |
| Republic Airways | 9 | 55.56% | 0% | 104 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
Other routes from Dallas/Fort Worth
Common questions
Are flights from Dallas/Fort Worth to Washington usually delayed?
78.21% of flights on the DFW to IAD route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airline is most on time from Dallas/Fort Worth to Washington?
Frontier Airlines, at 87.9% on time across 161 flights. The least punctual on the route was American Airlines at 69.67%.
How often are DFW to IAD flights cancelled?
2.28% of scheduled flights did not operate — about 23 in every thousand. That is in the normal range.
What is the best month to fly Dallas/Fort Worth to Washington?
January, when 88.8% of flights arrived on time. The worst was July at 67.7%.
When DFW to IAD flights are late, how late are they?
About 80 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on DFW to IAD during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →