Need help booking?
Unpublished phone-only deals available
COU to SEA: distance & flight time
Columbia (Columbia Regional Airport) → Seattle (Seattle Tacoma International Airport)
1,618 mi
2,603 km · 1,406 nm
3h 38m
estimated nonstop flight time
-2h
time difference · heading northwest
See live COU→SEA fares Phone-only fares on this route — call free
Flight time details
1,618 miles nonstop takes roughly 3h 38m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- COU — Columbia Regional Airport · Columbia, United States
- SEA — Seattle Tacoma International Airport · Seattle, 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 COU
- JEF · Jefferson City Memorial Airport16 mi away
- AIZ · Lee C Fine Memorial Airport53 mi away
- SZL · Whiteman Air Force Base72 mi away
- TBN · Waynesville-St. Robert Regional Forney field75 mi away
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
Frequently asked questions
How far is COU from SEA?
The flight distance from Columbia (COU) to Seattle (SEA) is 1,618 miles (2,603 km, 1,406 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from COU to SEA?
A nonstop flight takes about 3h 38m 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 Columbia and Seattle?
Seattle is 2 hours behind Columbia.
What is the cheapest way to fly from COU to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on COU–SEA that never appear on search engines, with no booking fees.