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SEA to FNL: distance & flight time
Seattle (Seattle Tacoma International Airport) → Fort Collins (Northern Colorado Regional Airport)
984 mi
1,583 km · 855 nm
2h 36m
estimated nonstop flight time
+1h
time difference · heading southeast
See live SEA→FNL fares Phone-only fares on this route — call free
Flight time details
984 miles nonstop takes roughly 2h 36m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- FNL — Northern Colorado Regional Airport · Fort Collins, 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 FNL
- DEN · Denver International Airport45 mi away
- GXY · Greeley–Weld County Airport20 mi away
- WBU · Boulder Municipal Airport31 mi away
- BJC · Rocky Mountain Metropolitan Airport38 mi away
Frequently asked questions
How far is SEA from FNL?
The flight distance from Seattle (SEA) to Fort Collins (FNL) is 984 miles (1,583 km, 855 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to FNL?
A nonstop flight takes about 2h 36m 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 Fort Collins?
Fort Collins is 1 hour ahead of Seattle.
What is the cheapest way to fly from SEA to FNL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–FNL that never appear on search engines, with no booking fees.