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HLH to REP: distance & flight time

Ulanhot (Ulanhot Airport) → Siem-reap (Siem Reap International Airport)

2,501 mi
4,024 km · 2,173 nm
5h 22m
estimated nonstop flight time
-1h
time difference · heading southwest
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Flight time details

2,501 miles nonstop takes roughly 5h 22m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

Alternate airports can cut this fare

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Frequently asked questions

How far is HLH from REP?

The flight distance from Ulanhot (HLH) to Siem-reap (REP) is 2,501 miles (4,024 km, 2,173 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from HLH to REP?

A nonstop flight takes about 5h 22m 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 Ulanhot and Siem-reap?

Siem-reap is 1 hour behind Ulanhot.

What is the cheapest way to fly from HLH to REP?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLH–REP that never appear on search engines, with no booking fees.
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