Route
MSP → SEA
Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field Seattle–Tacoma International Airport
How punctual is this route?
- On-time arrivals
- 80.9%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,676
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 47%
- Air traffic control & airport 25%
- Late-arriving aircraft 24%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 92.0% | 264 |
| October 2025 | 89.4% | 230 |
| November 2025 | 83.0% | 202 |
| December 2025 | 52.2% | 208 |
| January 2026 | 68.1% | 167 |
| February 2026 | 81.3% | 157 |
| March 2026 | 66.7% | 200 |
| April 2026 | 93.3% | 197 |
| May 2026 | 84.4% | 226 |
| June 2026 | 83.3% | 252 |
| July 2026 | 84.4% | 290 |
| August 2026 | 82.7% | 283 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 1,745 | 80.6% | 0.9% | 65 min |
| Alaska Airlines | 931 | 81.4% | 1.2% | 75 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL868
13% late · 365 flights
-
DL881
27% late · 364 flights
-
DL877
28% late · 356 flights
-
AS387
16% late · 353 flights
-
DL889
15% late · 348 flights
-
AS555
23% late · 292 flights
-
DL505
18% late · 196 flights
-
DL1418
3% late · 86 flights
-
AS510
19% late · 83 flights
-
AS229
15% late · 41 flights
-
AS532
33% late · 36 flights
-
AS497
22% late · 34 flights
-
AS480
10% late · 33 flights
-
DL876
15% late · 26 flights
-
AS612
0% late · 24 flights
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