Columbus (CMH) to Seattle (SEA) flights
Alaska Airlines flies nonstop from John Glenn Columbus International Airport to Seattle-Tacoma International Airport, with about 14 flights a week in July 2026. The 2,016-mile flight takes about 5h 7m gate to gate.
- Distance
- 2,016 mi · 3,244 km
- Flight time
- 5h 7m
- Airlines
- 1
- Seats filled
- 80%
Airlines flying CMH to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 14 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 64,513 | 5h 7m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
CMH to SEA flight schedule
2 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 7:00am and the last at 6:07pm. 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 283Alaska Airlines | 7:00am | 9:07am | 31 | 76% |
| AS 450Alaska Airlines | 6:07pm | 8:15pm | 31 | 66% |
Is CMH to SEA on time?
From September 2025 to August 2026, 71% of 469 flights arrived within 15 minutes of schedule and 1.1% were cancelled. Flights leaving around 7am were the most punctual (78%), those around 6pm the least (65%). Most delay time was caused by late-arriving aircraft (49%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 465 | 71% | 16 min | 1.1% |
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 | 23 | 100% | |
| 7am to 8am | 111 | 78% | |
| 8am to 9am | 26 | 70% | |
| 5pm to 6pm | 14 | 71% | |
| 6pm to 7pm | 215 | 65% | |
| 7pm to 8pm | 77 | 68% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 57 | 8,559 | |
| September 2025 | 52 | 7,153 | |
| October 2025 | 33 | 4,564 | |
| November 2025 | 29 | 4,075 | |
| December 2025 | 31 | 4,388 | |
| January 2026 | 21 | 2,644 | |
| February 2026 | 20 | 2,523 | |
| March 2026 | 26 | 3,606 | |
| April 2026 | 29 | 3,581 | |
| May 2026 | 44 | 6,317 | |
| June 2026 | 57 | 8,177 | |
| July 2026 | 61 | 9,448 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.