Need help booking?
Unpublished phone-only deals available
LKO to KOS: distance & flight time
Lucknow (Chaudhary Charan Singh International Airport) → Sihanoukville (Sihanoukville International Airport)
1,856 mi
2,987 km · 1,613 nm
4h 6m
estimated nonstop flight time
+1.5h
time difference · heading southeast
See live LKO→KOS fares Phone-only fares on this route — call free
Flight time details
1,856 miles nonstop takes roughly 4h 6m 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
- KOS — Sihanoukville International Airport · Sihanoukville, 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 KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Frequently asked questions
How far is LKO from KOS?
The flight distance from Lucknow (LKO) to Sihanoukville (KOS) is 1,856 miles (2,987 km, 1,613 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LKO to KOS?
A nonstop flight takes about 4h 6m 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 Sihanoukville?
Sihanoukville is 1.5 hours ahead of Lucknow.
What is the cheapest way to fly from LKO to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LKO–KOS that never appear on search engines, with no booking fees.