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SEA to SDJ: distance & flight time
Seattle (Seattle Tacoma International Airport) → Sendai (Sendai Airport)
4,623 mi
7,440 km · 4,017 nm
9h 32m
estimated nonstop flight time
+16h
time difference · heading northwest
See live SEA→SDJ fares Phone-only fares on this route — call free
Flight time details
4,623 miles nonstop takes roughly 9h 32m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- SDJ — Sendai Airport · Sendai, 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Near SDJ
- GAJ · Yamagata Airport35 mi away
- FKS · Fukushima Airport68 mi away
- SYO · Shonai Airport77 mi away
- HNA · Hanamaki Airport90 mi away
Frequently asked questions
How far is SEA from SDJ?
The flight distance from Seattle (SEA) to Sendai (SDJ) is 4,623 miles (7,440 km, 4,017 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to SDJ?
A nonstop flight takes about 9h 32m 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 Seattle and Sendai?
Sendai is 16 hours ahead of Seattle.
What is the cheapest way to fly from SEA to SDJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–SDJ that never appear on search engines, with no booking fees.