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IAG to APA: distance & flight time
Niagara Falls (Niagara Falls International Airport) → Denver (Centennial Airport)
1,360 mi
2,189 km · 1,182 nm
3h 25m
estimated nonstop flight time
-2h
time difference · heading west
See live IAG→APA fares Phone-only fares on this route — call free
Flight time details
1,360 miles nonstop takes roughly 3h 25m 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
- IAG — Niagara Falls International Airport · Niagara Falls, United States
- APA — Centennial Airport · Denver, 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 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
Near APA
- DEN · Denver International Airport22 mi away
- BFK · Buckley Air Force Base10 mi away
- BJC · Rocky Mountain Metropolitan Airport27 mi away
- WBU · Boulder Municipal Airport38 mi away
Frequently asked questions
How far is IAG from APA?
The flight distance from Niagara Falls (IAG) to Denver (APA) is 1,360 miles (2,189 km, 1,182 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAG to APA?
A nonstop flight takes about 3h 25m 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 Niagara Falls and Denver?
Denver is 2 hours behind Niagara Falls.
What is the cheapest way to fly from IAG to APA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAG–APA that never appear on search engines, with no booking fees.