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Route · SEA → DFW · 2020–2025 BTS data

Seattle to Dallas/Fort Worth

The SEA–DFW corridor (Seattle, WA → Dallas/Fort Worth, TX) runs behind the national average, served by 12 carriers across roughly 1,660 miles.

Data updated 2026-06-13

78.9%
On-time
-0.1 pts
vs US avg
81 min
Delay when late
24,433
Flights

Cancelled

1.7%

Best Month

Jan 2025 85%

Worst Month

Jun 2025 62%

Distance

1,660 mi

Carriers

12

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 455 115 3 1 DL,F9,AS,AA
Nov 2025 411 80 7 9 DL,F9,AA,AS
Oct 2025 442 78 3 1 AA,AS,DL,F9
Sep 2025 430 81 6 2 DL,AA,AS
Aug 2025 476 125 13 6 AA,F9,AS,DL
Jul 2025 505 174 8 2 AA,AS,DL,F9
Jun 2025 495 186 13 3 AA,AS,DL,F9
May 2025 472 110 7 1 AA,AS,DL,F9
Apr 2025 419 135 6 6 DL,F9,AA,AS
Mar 2025 425 84 4 2 AA,AS,DL,F9
Feb 2025 356 60 2 2 AA,AS,DL,F9
Jan 2025 405 59 15 3 AA,AS,DL,F9
Dec 2024 445 92 8 5 AA,AS,DL,F9
Nov 2024 424 102 6 3 AS,DL,F9,AA
Oct 2024 489 92 1 2 AS,DL,F9,AA
Sep 2024 484 133 1 2 AA,AS,DL,F9
Aug 2024 528 165 4 1 AA,AS,DL,F9
Jul 2024 520 147 9 1 AA,AS,DL,F9
Jun 2024 450 114 6 5 AA,AS,F9
May 2024 399 112 24 4 AA,AS
Apr 2024 316 69 4 0 AA,AS
Mar 2024 333 65 5 4 AA,AS
Feb 2024 302 53 0 0 AA,AS
Jan 2024 320 72 22 1 AA,AS

Cancellation Rate

1.7%

177 of 10,301 flights

Diversion Rate

0.6%

66 of 10,301 flights

What the Data Says About SEA to DFW

24,433 tracked flights put the SEA to DFW pairing (Seattle to Dallas/Fort Worth) at a 78.9% on-time rate, squarely in line with the wider network. Delays that do occur run 80.7 minutes on average. Across the 1,660-mile route and its 12 carriers, the trailing 24 months show 1.7% cancelled and 0.6% diverted (10,301 flights sampled).

The monthly split is wide on this route: Jan 2025 posted the strongest performance at 85% on-time, while Jun 2025 came in at just 62% - a 23-point swing worth factoring into travel timing.

Frequently Asked Questions

How often are flights delayed from SEA to DFW?
Flights from Seattle to Dallas/Fort Worth have a 78.9% on-time rate based on 24,433 flights. The average delay is 80.7 minutes. The best recent month was Jan 2025 with 85% on-time.
What is the cancellation rate for SEA to DFW?
Over the last 24 months, 1.7% of flights on this route were cancelled (177 of 10,301 flights) and 0.6% were diverted.
How far is the flight from SEA to DFW?
The flight distance from Seattle (SEA) to Dallas/Fort Worth (DFW) is approximately 1,660 miles. This route is served by 12 carriers.
When is the best time to fly from SEA to DFW?
The best recent month for on-time performance was Jan 2025 (85% on-time). The worst was Jun 2025 (62% on-time). Consider booking during months with historically better performance.

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Data source

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

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 Editorial

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.