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RDR to FNL: distance & flight time
Red River (Grand Forks Air Force Base) → Fort Collins (Northern Colorado Regional Airport)
641 mi
1,031 km · 557 nm
1h 52m
estimated nonstop flight time
-1h
time difference · heading southwest
See live RDR→FNL fares Phone-only fares on this route — call free
Flight time details
641 miles nonstop takes roughly 1h 52m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- RDR — Grand Forks Air Force Base · Red River, 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 RDR
- GFK · Grand Forks International Airport10 mi away
- TVF · Thief River Falls Regional Airport57 mi away
- PMB · Pembina Municipal Airport68 mi away
- DVL · Devils Lake Regional Airport70 mi away
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 RDR from FNL?
The flight distance from Red River (RDR) to Fort Collins (FNL) is 641 miles (1,031 km, 557 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RDR to FNL?
A nonstop flight takes about 1h 52m 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 RDR to FNL?
Nonstop service on RDR–FNL 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 1h 52m nonstop estimate.
What is the time difference between Red River and Fort Collins?
Fort Collins is 1 hour behind Red River.
What is the cheapest way to fly from RDR to FNL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RDR–FNL that never appear on search engines, with no booking fees.
Why are some RDR to FNL fares phone-only?
Consolidator contracts let us sell certain RDR–FNL 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.