Route
SEA → BLI
Seattle–Tacoma International Airport Bellingham International Airport
93 miles
Return route BLI → SEA →
How punctual is this route?
- On-time arrivals
- 83.3%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,185
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 17%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.0% | 120 |
| October 2025 | 86.0% | 116 |
| November 2025 | 85.1% | 97 |
| December 2025 | 76.0% | 124 |
| January 2026 | 83.7% | 98 |
| February 2026 | 92.4% | 81 |
| March 2026 | 85.2% | 90 |
| April 2026 | 93.3% | 90 |
| May 2026 | 88.2% | 93 |
| June 2026 | 82.0% | 90 |
| July 2026 | 87.0% | 93 |
| August 2026 | 59.1% | 93 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 1,185 | 83.3% | 2.3% | 59 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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