CMH → SEAColumbus to Seattle

live

Direct flights from Columbus (CMH) to Seattle (SEA): 7 nonstop departures observed each week across 1 airline. The median arrival is 27 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 3,236 km, an estimated 4 hours 39 minutes in the air. Measured by Pro Flight Search from live flight boards at Columbus and Seattle. Updated 7 September 2026 at 14:52 UTC.

CMH Columbus smooth · +7
SEA Seattle smooth · +0
3,236 km · ~4h 39m est.
dep bank 07:02–17:357x weekly
Running clean · 1 airline · 7x weekly · nonstop
94 / 100

route health from live CMH and SEA delay boards

Median arrival delay is +27 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+27 minacross the last 1 operated legs
Flight time~4h 39mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS

Flights AS283 07:02 daily · AS450 17:35 daily

History

operated legs · board outcomes
09-05AS450departed+27

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
CMHColumbus +7 min smooth 🌤 scattered clouds · E 9 kt Full CMH delay board →
SEASeattle +0 min smooth ⛅ overcast · S 6 kt Full SEA delay board →

Weather lens

Current conditions put the pressure at CMH: 36% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Columbus to Seattle route actually runs

Pro Flight Search records official board updates for nonstop CMH to SEA flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Columbus (CMH) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/CMH-SEA
How we measure this →

CMH to SEA questions

Is CMH–SEA running on time right now?

Smooth skies ahead. The departure side at CMH is the weaker end, route health score 94/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on CMH–SEA?

Operators schedule morning departures around 07:02 and evening departures around 17:35 from CMH. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SEA delay card to confirm conditions when you'd arrive.

How long is the flight from CMH to SEA?

Great-circle distance is 3,236 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 258–307 min gate-to-gate on this route.

How often does CMH–SEA fly?

Alaska Airlines runs the route with about 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.