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KSC to BOS: distance & flight time
Kosice (Košice Airport) → Boston (General Edward Lawrence Logan International Airport)
4,206 mi
6,768 km · 3,655 nm
8h 43m
estimated nonstop flight time
-6h
time difference · heading northwest
See live KSC→BOS fares Phone-only fares on this route — call free
Flight time details
4,206 miles nonstop takes roughly 8h 43m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- KSC — Košice Airport · Kosice, Slovakia
- 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 KSC
- UDJ · Uzhhorod International Airport47 mi away
- TAT · Poprad-Tatry Airport54 mi away
- DEB · Debrecen International Airport83 mi away
- SLD · Sliač Airport96 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 KSC from BOS?
The flight distance from Kosice (KSC) to Boston (BOS) is 4,206 miles (6,768 km, 3,655 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KSC to BOS?
A nonstop flight takes about 8h 43m 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 Kosice and Boston?
Boston is 6 hours behind Kosice.
What is the cheapest way to fly from KSC to BOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KSC–BOS that never appear on search engines, with no booking fees.