Route · SEA → CLE · 2020–2025 BTS data
Seattle to Cleveland
The SEA–CLE corridor (Seattle, WA → Cleveland, OH) runs behind the national average, served by 1 carrier across roughly 2,021 miles.
Data updated 2026-06-13
- 75.4%
- On-time
- -3.6 pts
- vs US avg
- 44 min
- Delay when late
- 1,361
- Flights
Cancelled
0.7%
Best Month
Aug 2023 87%
Worst Month
Aug 2025 60%
Distance
2,021 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Oct 2025 | 32 | 9 | 1 | 0 | AS |
| Sep 2025 | 47 | 13 | 0 | 0 | AS |
| Aug 2025 | 57 | 23 | 0 | 0 | AS |
| Jul 2025 | 61 | 18 | 1 | 0 | AS |
| Jun 2025 | 60 | 17 | 0 | 0 | AS |
| May 2025 | 49 | 14 | 0 | 0 | AS |
| Apr 2025 | 30 | 14 | 0 | 0 | AS |
| Jan 2025 | 31 | 9 | 0 | 0 | AS |
| Oct 2024 | 31 | 5 | 0 | 0 | AS |
| Sep 2024 | 48 | 27 | 0 | 0 | AS |
| Aug 2024 | 56 | 15 | 1 | 0 | AS |
| Jul 2024 | 62 | 13 | 0 | 0 | AS |
| Jun 2024 | 60 | 14 | 0 | 0 | AS |
| May 2024 | 47 | 10 | 0 | 0 | AS |
| Apr 2024 | 30 | 4 | 0 | 1 | AS |
| Mar 2024 | 31 | 7 | 0 | 0 | AS |
| Jan 2024 | 31 | 2 | 5 | 0 | AS |
| Nov 2023 | 30 | 7 | 0 | 0 | AS |
| Oct 2023 | 31 | 9 | 0 | 0 | AS |
| Sep 2023 | 60 | 15 | 0 | 0 | AS |
| Aug 2023 | 62 | 8 | 0 | 0 | AS |
| Jul 2023 | 62 | 13 | 0 | 1 | AS |
| Jun 2023 | 46 | 19 | 0 | 1 | AS |
| May 2023 | 31 | 11 | 0 | 0 | AS |
Cancellation Rate
0.7%
8 of 1,085 flights
Diversion Rate
0.3%
3 of 1,085 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Origin airport →CLE - Cleveland
Full on-time, delay-cause, and seasonal performance for Cleveland, OH.
Destination airport →Compare the two airports
See SEA and CLE side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SEA–CLE.
Routes with a similar on-time rate
What the Data Says About SEA to CLE
The Seattle to Cleveland corridor (SEA to CLE) posts a 75.4% on-time rate on the lower edge of the average band, based on 1,361 tracked flights. Late flights run 44.3 minutes behind on average. 1 carrier cover the 2,021-mile route; over the last 24 months, 8 of 1,085 flights were cancelled (0.7%) and 0.3% diverted.
The monthly split is wide on this route: Aug 2023 posted the strongest performance at 87% on-time, while Aug 2025 came in at just 60% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SEA to CLE? ▼
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Flight Guides
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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.