Need help booking?
Unpublished phone-only deals available
SEA to CSM: distance & flight time
Seattle (Seattle Tacoma International Airport) → Clinton (Clinton Sherman Airport)
1,452 mi
2,337 km · 1,262 nm
3h 37m
estimated nonstop flight time
+2h
time difference · heading southeast
See live SEA→CSM fares Phone-only fares on this route — call free
Flight time details
1,452 miles nonstop takes roughly 3h 37m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- CSM — Clinton Sherman Airport · Clinton, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Near CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 mi away
Frequently asked questions
How far is SEA from CSM?
The flight distance from Seattle (SEA) to Clinton (CSM) is 1,452 miles (2,337 km, 1,262 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to CSM?
A nonstop flight takes about 3h 37m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Seattle and Clinton?
Clinton is 2 hours ahead of Seattle.
What is the cheapest way to fly from SEA to CSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–CSM that never appear on search engines, with no booking fees.