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YOW to REP: distance & flight time
Ottawa (Ottawa Macdonald-Cartier International Airport) → Siem-reap (Siem Reap International Airport)
8,379 mi
13,484 km · 7,281 nm
16h 54m
estimated nonstop flight time
+11h
time difference · heading north
See live YOW→REP fares Phone-only fares on this route — call free
Flight time details
8,379 miles nonstop takes roughly 16h 54m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- YOW — Ottawa Macdonald-Cartier International Airport · Ottawa, Canada
- REP — Siem Reap International Airport · Siem-reap, Cambodia
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 YOW
- YRO · Ottawa / Rockcliffe Airport10 mi away
- YND · Ottawa / Gatineau Airport15 mi away
- YSH · Smiths Falls-Montague (Russ Beach) Airport29 mi away
- OGS · Ogdensburg International Airport45 mi away
Near REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is YOW from REP?
The flight distance from Ottawa (YOW) to Siem-reap (REP) is 8,379 miles (13,484 km, 7,281 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YOW to REP?
A nonstop flight takes about 16h 54m 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 Ottawa and Siem-reap?
Siem-reap is 11 hours ahead of Ottawa.
What is the cheapest way to fly from YOW to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YOW–REP that never appear on search engines, with no booking fees.