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KOS to RDR: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Red River (Grand Forks Air Force Base)
8,191 mi
13,183 km · 7,118 nm
16h 32m
estimated nonstop flight time
-12h
time difference · heading north
See live KOS→RDR fares Phone-only fares on this route — call free
Flight time details
8,191 miles nonstop takes roughly 16h 32m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- RDR — Grand Forks Air Force Base · Red River, 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 KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
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
Frequently asked questions
How far is KOS from RDR?
The flight distance from Sihanoukville (KOS) to Red River (RDR) is 8,191 miles (13,183 km, 7,118 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to RDR?
A nonstop flight takes about 16h 32m 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 Sihanoukville and Red River?
Red River is 12 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to RDR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–RDR that never appear on search engines, with no booking fees.