Need help booking?
Unpublished phone-only deals available
FNL to IAG: distance & flight time
Fort Collins (Northern Colorado Regional Airport) → Niagara Falls (Niagara Falls International Airport)
1,350 mi
2,172 km · 1,173 nm
3h 24m
estimated nonstop flight time
+2h
time difference · heading east
See live FNL→IAG fares Phone-only fares on this route — call free
Flight time details
1,350 miles nonstop takes roughly 3h 24m gate to gate, flying east. 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
- FNL — Northern Colorado Regional Airport · Fort Collins, United States
- IAG — Niagara Falls International Airport · Niagara Falls, 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 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
Near IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 mi away
Frequently asked questions
How far is FNL from IAG?
The flight distance from Fort Collins (FNL) to Niagara Falls (IAG) is 1,350 miles (2,172 km, 1,173 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FNL to IAG?
A nonstop flight takes about 3h 24m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from FNL to IAG?
Nonstop service on FNL–IAG depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 3h 24m nonstop estimate.
What is the time difference between Fort Collins and Niagara Falls?
Niagara Falls is 2 hours ahead of Fort Collins.
What is the cheapest way to fly from FNL to IAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FNL–IAG that never appear on search engines, with no booking fees.
Why are some FNL to IAG fares phone-only?
Consolidator contracts let us sell certain FNL–IAG tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.