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REP to HIO: distance & flight time
Siem-reap (Siem Reap International Airport) → Hillsboro (Portland Hillsboro Airport)
7,429 mi
11,957 km · 6,456 nm
15h 2m
estimated nonstop flight time
-14h
time difference · heading northeast
See live REP→HIO fares Phone-only fares on this route — call free
Flight time details
7,429 miles nonstop takes roughly 15h 2m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- HIO — Portland Hillsboro Airport · Hillsboro, 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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 mi away
Frequently asked questions
How far is REP from HIO?
The flight distance from Siem-reap (REP) to Hillsboro (HIO) is 7,429 miles (11,957 km, 6,456 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to HIO?
A nonstop flight takes about 15h 2m 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 Hillsboro?
Hillsboro is 14 hours behind Siem-reap.
What is the cheapest way to fly from REP to HIO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–HIO that never appear on search engines, with no booking fees.