Osaka to Seattle flights

Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Osaka to Seattle is €458 with Hainan Airlines (checked on 20 Oct 2026).

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Lowest observed

€458

Average observed

€582

Cheapest month

November 2026

Last checked

27 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €458

Lowest observed

6 Nov 2026

Hainan Airlines · 1 stop · One way

Cheapest observed day · Last checked: 20 Oct 2026

Departure

14:35

When to fly

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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

One-way fare

One-way fare · No data: click and we will search

Lowest observed: €458, departing 6 Nov 2026 (Last checked: 20 Oct 2026)One-way fareCheck live prices for this route
Airlines seen: Air Canada, AirAsia, AirAsia X, Alaska Airlines, ANA, China Airlines, EVA Air, Hainan Airlines, HK Express, Jetstar, Korean Air, Peach, Philippine Airlines, STARLUX Airlines, Thai Lion Air, Thai Vietjet Air, Tigerair Taiwan, ZIPAIR (18)
Reported fastest flight: 10h 10m
Non-stop: Yes

Short answer

Routavio has seen Hainan Airlines fares from Osaka to Seattle. The lowest fare Routavio's own searches returned is €458, seen on 20 Oct 2026. The average across the fares we caught is €582. November 2026 is the cheapest month in our observations, at €458. These are prices Routavio's searches returned on the dates shown, not quotes; run a live search for today's fare.

Osaka → SeattleFri 6 Nov 2026 · €458Last checked: 20 Oct 2026

About this route

Explore the fares we observed from Osaka to Seattle. Prices move often, so pick your dates to see the latest options.

Route distance: 8,043 km
Reported fastest flight: 10h 10m
Alternative airports: ITM, UKB, BFI

Route-level information; individual journeys vary.
Published schedules report non-stop service with Delta Air Lines. Check current timetables.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Price alert

Price alert for Osaka → Seattle

If the observed fare for this date drops, we will email you. At most one message a day.

Airport to city: straight-line distance

Osaka Itami International Airport (ITM) → Osaka, city gazetteer reference point (34.6937, 135.5022): ≈ 11 km.
Kobe Airport (UKB) → Osaka, city gazetteer reference point (34.6937, 135.5022): ≈ 26 km.
Kansai International Airport (KIX) → Osaka, city gazetteer reference point (34.6937, 135.5022): ≈ 38 km.
King County International Airport - Boeing Field (BFI) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 9 km.
Seattle–Tacoma International Airport (SEA) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 18 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.

Lowest one-way fare we saw per airline

Cheapest airline from Osaka to Seattle: Hainan Airlines, from €458 (checked 20 Oct 2026).

Lowest one-way fare we saw per airline
Airline	Lowest fare	Priced days
Hainan Airlines	€458Nov 6, 2026	9
AirAsia	€507Nov 5, 2026	4
Peach	€516Nov 26, 2026	16
Thai Lion Air	€573Nov 3, 2026	11
Philippine Airlines	€576Dec 16, 2026	7
Thai Vietjet Air	€592Dec 17, 2026	3
Tigerair Taiwan	€604Dec 22, 2026	3
Alaska Airlines	€668Jan 12, 2027	4
STARLUX Airlines	€697Dec 25, 2026	3

One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.

Frequently asked

How much is a flight from Osaka to Seattle?

The lowest fare Routavio has observed is €458, found on 20 Oct 2026. Prices move, so read it as a floor rather than a quote.

When is the cheapest month to fly from Osaka to Seattle?

In our observations November 2026 is the cheapest month so far, at €458.

Are there direct flights from Osaka to Seattle?

Yes. Published schedules report non-stop flights on this route with Delta Air Lines.

Which airlines fly from Osaka to Seattle?

Routavio has seen these carriers on the route: Air Canada, AirAsia, AirAsia X, Alaska Airlines, ANA, China Airlines, EVA Air, Hainan Airlines, HK Express, Jetstar, Korean Air, Peach, Philippine Airlines, STARLUX Airlines, Thai Lion Air, Thai Vietjet Air, Tigerair Taiwan, ZIPAIR (18).

How long does the flight from Osaka to Seattle take?

Across the 73 fares Routavio observed, the average journey time is 27h 11m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

Which airline has the lowest fare from Osaka to Seattle?

Cheapest airline from Osaka to Seattle: Hainan Airlines, from €458 (checked 20 Oct 2026).

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio