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LKO to REP: distance & flight time
Lucknow (Chaudhary Charan Singh International Airport) → Siem-reap (Siem Reap International Airport)
1,745 mi
2,809 km · 1,517 nm
3h 53m
estimated nonstop flight time
+1.5h
time difference · heading southeast
See live LKO→REP fares Phone-only fares on this route — call free
Flight time details
1,745 miles nonstop takes roughly 3h 53m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.5-hour time gain when reading arrival times on your ticket.
The two airports
- LKO — Chaudhary Charan Singh International Airport · Lucknow, India
- 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 LKO
- KNU · Kanpur Airport39 mi away
- KEP · Nepalgunj Airport104 mi away
- IXD · Allahabad Airport105 mi away
- DNP · Tulsipur Airport127 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 LKO from REP?
The flight distance from Lucknow (LKO) to Siem-reap (REP) is 1,745 miles (2,809 km, 1,517 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LKO to REP?
A nonstop flight takes about 3h 53m 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 Lucknow and Siem-reap?
Siem-reap is 1.5 hours ahead of Lucknow.
What is the cheapest way to fly from LKO to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LKO–REP that never appear on search engines, with no booking fees.