Dallas/Fort Worth (DFW) to Washington (IAD): On-Time Performance
Data through July 2026
When you fly DFW to IAD matters as much as anything else about the booking: the route swung from 89% on-time in January 2026 to just 67% in July 2026. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 70%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.9%
- Flights/day
- 5.3
- last 12 months
- Duration
- 2h 57m
- scheduled
- Distance
- 1,172 mi
Best airline from DFW to IAD
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 84% | 13 min | 2.4% | 211 |
| United Airlines | 83% | 15 min | 1.2% | 1,979 |
| American Airlines | 69% | 22 min | 2.6% | 1,715 |
Monthly on-time trend
Best time to fly from DFW to IAD
Aim for departures around 5 a.m. (94% on-time); avoid 1 p.m. departures (57%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 16 min |
| Tuesdaybest | 83% | 15 min |
| Wednesday | 77% | 18 min |
| Thursday | 77% | 16 min |
| Friday | 78% | 16 min |
| Saturday | 74% | 24 min |
| Sunday | 72% | 21 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations31%
- National airspace system14%
- Weather6%
Frequently asked questions
- How often are flights from DFW to IAD delayed?
- 23% of DFW–IAD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from DFW to IAD?
- Frontier Airlines has the best on-time record on this route at 84%, based on 211 flights. 3 airlines flew DFW–IAD frequently enough to compare in this period.
- What is the best time of day to fly from DFW to IAD?
- Departures around 5 a.m. have the best record (94% on-time), while departures around 1 p.m. have the worst (57%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DFW to IAD?
- The scheduled DFW–IAD flight time averages 2h 57m over 1,172 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are DFW to IAD flights cancelled?
- 1.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DFW to IAD?
- July 2026 was the roughest month in this dataset, with only 67% of arrivals on time. The best was January 2026 at 89%. If your dates are flexible, that 22-point gap is worth planning around.
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Based on 3,918 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.