Route · ANC → SEA · 2020–2025 BTS data
Anchorage to Seattle
The ANC–SEA corridor (Anchorage, AK → Seattle, WA) runs ahead of the national average, served by 10 carriers across roughly 1,448 miles.
Data updated 2026-06-13
- 85.8%
- On-time
- +6.8 pts
- vs US avg
- 61 min
- Delay when late
- 41,064
- Flights
Cancelled
1.1%
Best Month
May 2024 91%
Worst Month
Jul 2024 76%
Distance
1,448 mi
Carriers
10
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 475 | 99 | 5 | 0 | DL,AS |
| Nov 2025 | 485 | 64 | 7 | 0 | DL,AS |
| Oct 2025 | 555 | 62 | 7 | 2 | AS,DL |
| Sep 2025 | 625 | 83 | 2 | 0 | DL,AS,HA |
| Aug 2025 | 726 | 165 | 7 | 0 | HA,AS,DL |
| Jul 2025 | 746 | 158 | 20 | 0 | AS,DL,HA |
| Jun 2025 | 698 | 121 | 3 | 0 | AS,DL,HA |
| May 2025 | 663 | 70 | 5 | 2 | AS,DL |
| Apr 2025 | 492 | 71 | 1 | 0 | DL,AS |
| Mar 2025 | 477 | 65 | 0 | 0 | AS,DL |
| Feb 2025 | 438 | 50 | 5 | 0 | AS,DL |
| Jan 2025 | 497 | 70 | 5 | 0 | AS,DL |
| Dec 2024 | 511 | 80 | 0 | 1 | AS,DL |
| Nov 2024 | 518 | 63 | 1 | 1 | AS,DL |
| Oct 2024 | 586 | 78 | 3 | 0 | AS,DL |
| Sep 2024 | 662 | 94 | 2 | 0 | AS,DL |
| Aug 2024 | 846 | 108 | 8 | 4 | AS,DL |
| Jul 2024 | 869 | 209 | 15 | 1 | AS,DL |
| Jun 2024 | 794 | 100 | 6 | 0 | AS,DL |
| May 2024 | 701 | 66 | 4 | 0 | AS,DL |
| Apr 2024 | 570 | 77 | 2 | 0 | AS,DL |
| Mar 2024 | 535 | 103 | 6 | 0 | AS,DL |
| Feb 2024 | 480 | 62 | 0 | 1 | AS,DL |
| Jan 2024 | 515 | 113 | 41 | 0 | AS,DL |
Cancellation Rate
1.1%
155 of 14,464 flights
Diversion Rate
0.1%
12 of 14,464 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ANC - Anchorage
Full on-time, delay-cause, and seasonal performance for Anchorage, AK.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See ANC and SEA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ANC–SEA.
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What the Data Says About ANC to SEA
Anchorage to Seattle (ANC to SEA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.8% on-time rate across 41,064 flights, with delays that do happen averaging 61.1 minutes. The corridor runs roughly 1,448 miles and is served by 10 carriers. Over the most recent 24 months, 155 of 14,464 flights were cancelled (1.1%) and 12 diverted (0.1%).
Monthly performance varies moderately here: May 2024 was the strongest month at 91% on-time versus Jul 2024 at 76%, a 15-point difference.
Frequently Asked Questions
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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.
Read our methodology - how this data is sourced, computed, and verified.
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.