Route
SEA → GEG
Seattle–Tacoma International Airport Spokane International Airport
How punctual is this route?
- On-time arrivals
- 83.1%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,956
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 50%
- Late-arriving aircraft 22%
- Extreme weather 17%
- Air traffic control & airport 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.3% | 462 |
| October 2025 | 89.0% | 451 |
| November 2025 | 88.0% | 423 |
| December 2025 | 77.7% | 395 |
| January 2026 | 82.5% | 440 |
| February 2026 | 88.4% | 400 |
| March 2026 | 84.6% | 418 |
| April 2026 | 86.0% | 386 |
| May 2026 | 88.1% | 414 |
| June 2026 | 83.1% | 375 |
| July 2026 | 73.4% | 385 |
| August 2026 | 72.2% | 407 |
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 | 2,869 | 87.6% | 1.1% | 66 min |
| Alaska Airlines | 1,744 | 77.9% | 0.5% | 49 min |
| Delta Air Lines | 343 | 72.5% | 1.5% | 96 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO3830
5% late · 365 flights
-
OO4145
14% late · 365 flights
-
OO3832
14% late · 343 flights
-
OO3824
11% late · 255 flights
-
AS448
20% late · 225 flights
-
AS347
24% late · 208 flights
-
OO3677
13% late · 195 flights
-
AS454
21% late · 192 flights
-
OO4068
17% late · 179 flights
-
AS350
22% late · 175 flights
-
OO3857
9% late · 141 flights
-
OO3754
17% late · 139 flights
-
AS1382
15% late · 115 flights
-
DL2354
37% late · 113 flights
-
OO3673
9% late · 110 flights
-
OO3763
10% late · 97 flights
-
AS359
14% late · 85 flights
-
AS1342
34% late · 70 flights
-
AS1433
32% late · 70 flights
-
AS449
44% late · 70 flights
-
OO3820
4% late · 69 flights
-
AS286
6% late · 62 flights
-
OO3671
15% late · 62 flights
-
OO4150
7% late · 60 flights
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