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SDM to FNL: distance & flight time
San Diego (Brown Field Municipal Airport) → Fort Collins (Northern Colorado Regional Airport)
858 mi
1,380 km · 745 nm
2h 20m
estimated nonstop flight time
+1h
time difference · heading northeast
See live SDM→FNL fares Phone-only fares on this route — call free
Flight time details
858 miles nonstop takes roughly 2h 20m gate to gate, flying northeast. 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
- SDM — Brown Field Municipal Airport · San Diego, 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 SDM
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 SDM from FNL?
The flight distance from San Diego (SDM) to Fort Collins (FNL) is 858 miles (1,380 km, 745 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDM to FNL?
A nonstop flight takes about 2h 20m 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 San Diego and Fort Collins?
Fort Collins is 1 hour ahead of San Diego.
What is the cheapest way to fly from SDM to FNL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDM–FNL that never appear on search engines, with no booking fees.