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RAP to GFK: distance & flight time
Rapid City (Rapid City Regional Airport) → Grand Forks (Grand Forks International Airport)
390 mi
628 km · 339 nm
1h 30m
estimated nonstop flight time
+1h
time difference · heading northeast
See live RAP→GFK fares Phone-only fares on this route — call free
Flight time details
390 miles nonstop takes roughly 1h 30m 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
- RAP — Rapid City Regional Airport · Rapid City, United States
- GFK — Grand Forks International Airport · Grand Forks, 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 RAP
- RCA · Ellsworth Air Force Base7 mi away
- SPF · Black Hills Airport-Clyde Ice Field47 mi away
- CDR · Chadron Municipal Airport83 mi away
- GCC · Gillette Campbell County Airport125 mi away
Near GFK
- RDR · Grand Forks Air Force Base10 mi away
- TVF · Thief River Falls Regional Airport47 mi away
- PMB · Pembina Municipal Airport69 mi away
- FAR · Hector International Airport73 mi away
Frequently asked questions
How far is RAP from GFK?
The flight distance from Rapid City (RAP) to Grand Forks (GFK) is 390 miles (628 km, 339 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RAP to GFK?
A nonstop flight takes about 1h 30m 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 Rapid City and Grand Forks?
Grand Forks is 1 hour ahead of Rapid City.
What is the cheapest way to fly from RAP to GFK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RAP–GFK that never appear on search engines, with no booking fees.