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REP to SUS: distance & flight time
Siem-reap (Siem Reap International Airport) → Null (Spirit of St Louis Airport)
8,719 mi
14,033 km · 7,577 nm
17h 34m
estimated nonstop flight time
-12h
time difference · heading north
See live REP→SUS fares Phone-only fares on this route — call free
Flight time details
8,719 miles nonstop takes roughly 17h 34m 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
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- SUS — Spirit of St Louis Airport · Null, 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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Near SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is REP from SUS?
The flight distance from Siem-reap (REP) to Null (SUS) is 8,719 miles (14,033 km, 7,577 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to SUS?
A nonstop flight takes about 17h 34m 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 Siem-reap and Null?
Null is 12 hours behind Siem-reap.
What is the cheapest way to fly from REP to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–SUS that never appear on search engines, with no booking fees.