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PHL to KOS: distance & flight time
Philadelphia (Philadelphia International Airport) → Sihanoukville (Sihanoukville International Airport)
8,950 mi
14,404 km · 7,778 nm
18h 1m
estimated nonstop flight time
+11h
time difference · heading north
See live PHL→KOS fares Phone-only fares on this route — call free
Flight time details
8,950 miles nonstop takes roughly 18h 1m 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
- PHL — Philadelphia International Airport · Philadelphia, United States
- 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 PHL
- BBX · Wings Field18 mi away
- PNE · Northeast Philadelphia Airport19 mi away
- LLY · South Jersey Regional Airport22 mi away
- NXX · Willow Grove Naval Air Station/Joint Reserve Base23 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 PHL from KOS?
The flight distance from Philadelphia (PHL) to Sihanoukville (KOS) is 8,950 miles (14,404 km, 7,778 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHL to KOS?
A nonstop flight takes about 18h 1m 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 Philadelphia and Sihanoukville?
Sihanoukville is 11 hours ahead of Philadelphia.
What is the cheapest way to fly from PHL to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHL–KOS that never appear on search engines, with no booking fees.