Carrier route record
AADFW→IAD
American Airlines · Dallas-Fort Worth to Washington
- Flights
- 843
- Period
- July 2025 to June 2026
- Share of route
- 44%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.
American on DFW to IAD carries a cancellation problem, not just a delay problem: 3.7% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 843 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.6%, so American on DFW to IAD runs 8 points behind the country as a whole. Across a thousand flights that is about 79 extra late arrivals.
Key figures
On time
69.7%
Arrivals under 15 minutes late, of 811 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
3.68%
National rate is 1.81%
Whole route
78.2%
Every carrier on DFW to IAD, 1,928 flights
These figures cover 843 flights between July 2025 and June 2026. Beyond the headline rate, 12.8% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
American against every carrier on DFW to IAD
American flew 843 of the 1,928 flights on DFW to IAD, about 44% of it. Its 69.7% on time is 9 points worse than the route as a whole, which runs 78.2%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Frontier at 87.9% to Republic at 55.6%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Frontier Airlinesthin sample | 161 | 87.9% | 81 min | 2.48% | A |
| United Airlines | 915 | 84.4% | 93 min | 0.98% | B+ |
| American Airlines (this page) | 843 | 69.7% | 72 min | 3.68% | C− |
| Republic Airwaysthin sample | 9 | 55.6% | 104 min | 0.00% | D+ |
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 22 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am143 flights86.5%
- 8am–11am1 flights—
- 11am–2pm292 flights68.0%
- 2pm–5pm69 flights65.2%
- 5pm–8pm337 flights64.5%
- 8pm–5am1 flights—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 64.5% on time, against 86.5% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 337 flights scheduled in it.
Across the year
American on DFW to IAD through the year
July is the worst month at 53.3% on time, 32 points below September, the best at 84.9%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. June was the busiest month here, with 90 flights.
Across the week, Wednesday is the strongest day at 78.4% on time and Sunday the weakest at 60.0%. 18 points is a smaller lever than departure hour, but it is free.
Delay causes
Why American runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 53% of the 18,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 53%Late-arriving aircraft
- 28%Carrier
- 13%National Airspace System
- 7%Extreme weather
53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 18,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 17,586 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 86.5% on time here.
Cancellations run at 3.68%, against 1.81% nationally. That is roughly one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.8% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 1,172 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 73.3% on time across 844 flights, 4 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.
One caution: this is a thin sample. 843 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking American on DFW to IAD
Put together: the delay figures matter less here than the 3.68% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 811 completed flights over 12 months sit behind that.
Related
Where to go next
- DFW to IAD, every carrier
- American on IAD to DFW, the return leg
- Frontier Airlines on DFW to IAD87.9%
- United Airlines on DFW to IAD84.4%
- American Airlines network-wide record
- Dallas/Fort Worth International (DFW) delay statistics
- Washington Dulles International (IAD) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.