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KOS to BOS: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Boston (General Edward Lawrence Logan International Airport)
8,763 mi
14,103 km · 7,615 nm
17h 39m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→BOS fares Phone-only fares on this route — call free
Flight time details
8,763 miles nonstop takes roughly 17h 39m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- BOS — General Edward Lawrence Logan International Airport · Boston, 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 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
Near BOS
- OWD · Norwood Memorial Airport15 mi away
- BED · Laurence G Hanscom Field16 mi away
- BVY · Beverly Municipal Airport16 mi away
- LWM · Lawrence Municipal Airport25 mi away
Frequently asked questions
How far is KOS from BOS?
The flight distance from Sihanoukville (KOS) to Boston (BOS) is 8,763 miles (14,103 km, 7,615 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to BOS?
A nonstop flight takes about 17h 39m 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 Sihanoukville and Boston?
Boston is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to BOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–BOS that never appear on search engines, with no booking fees.