Minneapolis (MSP) to Seattle (SEA) flights
Delta Air Lines, Alaska Airlines, Sun Country Airlines fly nonstop from Minneapolis-Saint Paul International Airport / Wold-Chamberlain Field to Seattle-Tacoma International Airport, with about 82 flights a week in July 2026. The 1,399-mile flight takes about 3h 48m gate to gate.
- Distance
- 1,399 mi · 2,251 km
- Flight time
- 3h 48m
- Airlines
- 3
- Seats filled
- 88%
Airlines flying MSP to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 41 | Boeing 737-900ER, Airbus A321, Boeing 757-300 | 299,062 | 3h 46m |
| Alaska Airlines | 25 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 137,066 | 3h 51m |
| Sun Country Airlines | 17 | Boeing 737-800 | 61,374 | 3h 48m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
MSP to SEA flight schedule
10 flight numbers flew this route in August 2026, 8 of them almost daily. The first usually leaves at 6:03am and the last at 9:59pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 387Alaska Airlines | 6:03am | 7:58am | 31 | 84% |
| DL 1418Delta Air Lines | 7:00am | 8:48am | 31 | 97% |
| DL 868Delta Air Lines | 9:06am | 11:00am | 31 | 87% |
| DL 889Delta Air Lines | 11:10am | 1:00pm | 31 | 85% |
| AS 555Alaska Airlines | 2:54pm | 4:48pm | 31 | 77% |
| DL 877Delta Air Lines | 3:15pm | 5:00pm | 31 | 72% |
| AS 510Alaska Airlines | 4:57pm | 6:52pm | 31 | 81% |
| DL 881Delta Air Lines | 6:56pm | 8:50pm | 31 | 73% |
| AS 532Alaska Airlines | 7:59pm | 9:57pm | 17 | 67% |
| DL 505Delta Air Lines | 9:59pm | 11:54pm | 17 | 83% |
Is MSP to SEA on time?
From September 2025 to August 2026, 81% of 2,676 flights arrived within 15 minutes of schedule and 1% were cancelled. Flights leaving around 6am were the most punctual (91%), those around 3pm the least (71%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (47%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,745 | 81% | 13 min | 0.9% |
| Alaska Airlines | 931 | 81% | 14 min | 1.2% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 175 | 91% | |
| 7am to 8am | 288 | 85% | |
| 8am to 9am | 162 | 85% | |
| 9am to 10am | 203 | 89% | |
| 10am to 11am | 165 | 88% | |
| 11am to 12pm | 182 | 84% | |
| 2pm to 3pm | 368 | 75% | |
| 3pm to 4pm | 240 | 71% | |
| 4pm to 5pm | 70 | 79% | |
| 5pm to 6pm | 123 | 92% | |
| 6pm to 7pm | 335 | 72% | |
| 7pm to 8pm | 67 | 75% | |
| 9pm to 10pm | 87 | 85% | |
| 10pm to 11pm | 126 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 359 | 59,764 | |
| September 2025 | 297 | 45,451 | |
| October 2025 | 254 | 40,758 | |
| November 2025 | 228 | 35,113 | |
| December 2025 | 245 | 38,978 | |
| January 2026 | 175 | 28,906 | |
| February 2026 | 161 | 25,622 | |
| March 2026 | 191 | 31,372 | |
| April 2026 | 211 | 32,896 | |
| May 2026 | 257 | 43,407 | |
| June 2026 | 319 | 53,793 | |
| July 2026 | 365 | 61,896 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.