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OSN to RER: distance & flight time
Osan (Osan Air Base) → Retalhuleu (Retalhuleu Airport)
8,072 mi
12,990 km · 7,014 nm
16h 18m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OSN→RER fares Phone-only fares on this route — call free
Flight time details
8,072 miles nonstop takes roughly 16h 18m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- RER — Retalhuleu Airport · Retalhuleu, Guatemala
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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Near RER
- AAZ · Quezaltenango Airport27 mi away
- TAP · Tapachula International Airport49 mi away
- AQB · Santa Cruz del Quiche Airport50 mi away
- GSJ · San José Airport70 mi away
Frequently asked questions
How far is OSN from RER?
The flight distance from Osan (OSN) to Retalhuleu (RER) is 8,072 miles (12,990 km, 7,014 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to RER?
A nonstop flight takes about 16h 18m 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 OSN to RER?
Nonstop service on OSN–RER 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 16h 18m nonstop estimate.
What is the time difference between Osan and Retalhuleu?
Retalhuleu is 15 hours behind Osan.
What is the cheapest way to fly from OSN to RER?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–RER that never appear on search engines, with no booking fees.
Why are some OSN to RER fares phone-only?
Consolidator contracts let us sell certain OSN–RER 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.