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IAD to FNL: distance & flight time
Washington (Washington Dulles International Airport) → Fort Collins (Northern Colorado Regional Airport)
1,463 mi
2,354 km · 1,271 nm
3h 39m
estimated nonstop flight time
-2h
time difference · heading west
See live IAD→FNL fares Phone-only fares on this route — call free
Flight time details
1,463 miles nonstop takes roughly 3h 39m gate to gate, flying west. 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
- IAD — Washington Dulles International Airport · Washington, 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 IAD
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 IAD from FNL?
The flight distance from Washington (IAD) to Fort Collins (FNL) is 1,463 miles (2,354 km, 1,271 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to FNL?
A nonstop flight takes about 3h 39m 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 Washington and Fort Collins?
Fort Collins is 2 hours behind Washington.
What is the cheapest way to fly from IAD to FNL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–FNL that never appear on search engines, with no booking fees.