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FNL to SUS: distance & flight time
Fort Collins (Northern Colorado Regional Airport) → Null (Spirit of St Louis Airport)
774 mi
1,246 km · 673 nm
2h 9m
estimated nonstop flight time
+1h
time difference · heading east
See live FNL→SUS fares Phone-only fares on this route — call free
Flight time details
774 miles nonstop takes roughly 2h 9m gate to gate, flying east. 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
- FNL — Northern Colorado Regional Airport · Fort Collins, United States
- SUS — Spirit of St Louis Airport · Null, 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 SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is FNL from SUS?
The flight distance from Fort Collins (FNL) to Null (SUS) is 774 miles (1,246 km, 673 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FNL to SUS?
A nonstop flight takes about 2h 9m 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 Fort Collins and Null?
Null is 1 hour ahead of Fort Collins.
What is the cheapest way to fly from FNL to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FNL–SUS that never appear on search engines, with no booking fees.