Seattle (SEA) to Milwaukee (MKE) flights
Alaska Airlines flies nonstop from Seattle-Tacoma International Airport to General Mitchell International Airport, with about 14 flights a week in July 2026. The 1,694-mile flight takes about 3h 45m gate to gate.
- Distance
- 1,694 mi · 2,726 km
- Flight time
- 3h 45m
- Airlines
- 1
- Seats filled
- 81%
Airlines flying SEA to MKE
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 14 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 71,687 | 3h 45m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to MKE flight schedule
2 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:06am and the last at 6:09pm. 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 507Alaska Airlines | 8:06am | 2:01pm | 31 | 94% |
| AS 307Alaska Airlines | 6:09pm | 11:59pm | 31 | 81% |
Is SEA to MKE on time?
From September 2025 to August 2026, 86% of 509 flights arrived within 15 minutes of schedule and 0.2% were cancelled. Flights leaving around 8am were the most punctual (92%), those around 6pm the least (81%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 509 | 86% | 6 min | 0.2% |
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 |
|---|---|---|---|
| 7am to 8am | 22 | 96% | |
| 8am to 9am | 203 | 92% | |
| 9am to 10am | 114 | 83% | |
| 6pm to 7pm | 167 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 61 | 9,595 | |
| September 2025 | 60 | 8,141 | |
| October 2025 | 33 | 4,466 | |
| November 2025 | 33 | 4,309 | |
| December 2025 | 42 | 5,900 | |
| January 2026 | 24 | 2,892 | |
| February 2026 | 18 | 2,445 | |
| March 2026 | 26 | 3,974 | |
| April 2026 | 36 | 4,947 | |
| May 2026 | 58 | 7,743 | |
| June 2026 | 60 | 9,260 | |
| July 2026 | 62 | 8,878 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.