Need help booking?
Unpublished phone-only deals available
BOS to SYO: distance & flight time
Boston (General Edward Lawrence Logan International Airport) → Shonai (Shonai Airport)
6,505 mi
10,468 km · 5,652 nm
13h 13m
estimated nonstop flight time
+13h
time difference · heading northwest
See live BOS→SYO fares Phone-only fares on this route — call free
Flight time details
6,505 miles nonstop takes roughly 13h 13m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- BOS — General Edward Lawrence Logan International Airport · Boston, United States
- SYO — Shonai Airport · Shonai, Japan
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 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
Near SYO
- GAJ · Yamagata Airport42 mi away
- AXT · Akita Airport60 mi away
- KIJ · Niigata Airport69 mi away
- SDJ · Sendai Airport77 mi away
Frequently asked questions
How far is BOS from SYO?
The flight distance from Boston (BOS) to Shonai (SYO) is 6,505 miles (10,468 km, 5,652 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOS to SYO?
A nonstop flight takes about 13h 13m 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 Boston and Shonai?
Shonai is 13 hours ahead of Boston.
What is the cheapest way to fly from BOS to SYO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOS–SYO that never appear on search engines, with no booking fees.