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Route · IAD → DFW · 2020–2025 BTS data

Washington to Dallas/Fort Worth

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAD to DFW (Washington to Dallas/Fort Worth) ranks #1256 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

79.8%
On-time
+0.8 pts
vs US avg
89 min
Delay when late
9,421
Flights
#1256 of 4927
Corpus placement

Cancelled

1.4%

Best Month

Oct 2024 94%

Worst Month

May 2025 62%

Distance

1,172 mi

Carriers

24

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 138 42 0 0 YX,F9,AA,UA
Nov 2025 143 30 1 3 UA,F9,AA
Oct 2025 173 28 1 1 AA,UA,F9
Sep 2025 185 29 2 2 UA,F9,AA
Aug 2025 166 33 6 3 AA,F9,UA
Jul 2025 173 57 6 1 AA,UA,F9
Jun 2025 188 58 3 2 AA,UA,F9
May 2025 158 60 2 2 AA,UA,F9
Apr 2025 142 29 1 2 UA,AA
Mar 2025 165 24 2 1 AA,UA
Feb 2025 120 21 2 0 AA,UA
Jan 2025 129 29 5 2 AA,UA
Dec 2024 132 25 1 1 AA,UA
Nov 2024 145 11 2 2 UA,AA
Oct 2024 176 10 0 1 UA,AA
Sep 2024 146 32 0 0 UA,AA
Aug 2024 145 30 2 0 AA,UA
Jul 2024 144 26 2 0 AA,UA
Jun 2024 138 23 2 0 AA,UA
May 2024 139 51 7 1 AA,UA
Apr 2024 132 34 2 1 AA,UA
Mar 2024 141 33 1 0 AA,UA
Feb 2024 136 22 0 0 AA,UA
Jan 2024 142 45 2 0 AA,UA

IAD–DFW seasonal on-time pattern

Best: November (86.3%) · weakest: July (73.2%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 78.3%

Strongest calendar month

November

86.3% on-time · ~136 flights/mo

Busiest calendar month

October

~143 flights/mo avg

Weakest calendar month

July

73.2% on-time · ~134 flights/mo

Cancellation Rate

1.4%

52 of 3,596 flights

Diversion Rate

0.7%

25 of 3,596 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

IAD - Washington

Full on-time, delay-cause, and seasonal performance for Washington, DC.

IAD on-time profile

DFW - Dallas/Fort Worth

Full on-time, delay-cause, and seasonal performance for Dallas/Fort Worth, TX.

DFW on-time profile

Compare the two airports

See IAD and DFW side by side on delays, cancellations, and reliability.

Compare IAD vs DFW

Origin-hub reliability standing

Mid-pack among IAD departures

From IAD, this corridor sits with 42 other 75–85% on-time routes out of 58 tracked departures, not the hub's reliability leaders (14 at ≥85%) and not the softest ( 2 below 75%). Destination: Dallas/Fort Worth · fleet on-time rank #3223 of 4927.

What the Data Says About IAD to DFW

9,421 tracked flights put the IAD to DFW pairing (Washington to Dallas/Fort Worth) at a 79.8% on-time rate, squarely in line with the wider network. Delays that do occur run 89.1 minutes on average. Across the 1,172-mile route and its 24 carriers, the trailing 24 months show 1.4% cancelled and 0.7% diverted (3,596 flights sampled).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 94% on-time, while May 2025 came in at just 62% - a 32-point swing worth factoring into travel timing.

On the multi-year calendar, IAD–DFW peaks in November at 86.3% on-time while October carries the heaviest traffic (~143 flights per month) ; the softest month is July at 73.2%, a 13.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAD to DFW rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAD to DFW ranks #1256 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from IAD to DFW? ▼
Flights from Washington to Dallas/Fort Worth have a 79.8% on-time rate based on 9,421 flights. The average delay is 89.1 minutes. The best recent month was Oct 2024 with 94% on-time.
What is the cancellation rate for IAD to DFW? ▼
Over the last 24 months, 1.4% of flights on this route were cancelled (52 of 3,596 flights) and 0.7% were diverted.
How far is the flight from IAD to DFW? ▼
The flight distance from Washington (IAD) to Dallas/Fort Worth (DFW) is approximately 1,172 miles. This route is served by 24 carriers.
When is the best time to fly from IAD to DFW? ▼
The best recent month for on-time performance was Oct 2024 (94% on-time). The worst was May 2025 (62% on-time). Consider booking during months with historically better performance.

Airports on this route

IAD Airport

Washington
DFW Airport

Dallas/Fort Worth
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using IAD–DFW data

IAD–DFW is mid-pack at 79.8% on-time; month and carrier mix move more than the corridor headline.

  • Compare IAD and DFW airport profiles: delay causes and top routes differ even on the same corridor. IAD airport
  • If your dates flex, November (86.3% on-time) beats July (73.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 79.8% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.