Your next trip, last seen at €393
Below averageCathay Pacific · 1 stop · One wayWhen 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
- Lowest observed
- €393, departing 9 Nov 2026 (Last checked: 24 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Alaska Airlines, ANA, Cathay Pacific, China Airlines, Frontier Airlines, Hainan Airlines, Jetstar, Korean Air, Peach, Qatar Airways, Thai Lion Air, Turkish Airlines, United Airlines, WestJet (14)
- Reported fastest flight
- 11h 55m
- Non-stop
- Yes
About this route
Explore the fares we observed from Seattle to Osaka. Prices move often, so pick your dates to see the latest options.
- Route distance
- 8,043 km
- Reported fastest flight
- 11h 55m
- Alternative airports
- BFI, ITM, UKB
Route-level information; individual journeys vary.
Published schedules report non-stop service with Delta Air Lines. Check current timetables.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- 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.
- 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.
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 Seattle to Osaka: Cathay Pacific, from €393 (checked 24 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Cathay Pacific | €393Nov 9, 2026 | 21 |
| Hainan Airlines | €396Nov 28, 2026 | 5 |
| WestJet | €406Jan 24, 2027 | 3 |
| Alaska Airlines | €424Nov 8, 2026 | 21 |
| Korean Air | €436Nov 1, 2026 | 9 |
| ANA | €450Dec 29, 2026 | 6 |
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 Seattle to Osaka?
The lowest fare Routavio has observed is €393, found on 24 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Seattle to Osaka?
In our observations November 2026 is the cheapest month so far, at €393.
Are there direct flights from Seattle to Osaka?
Yes. Published schedules report non-stop flights on this route with Delta Air Lines.
Which airlines fly from Seattle to Osaka?
Routavio has seen these carriers on the route: Alaska Airlines, ANA, Cathay Pacific, China Airlines, Frontier Airlines, Hainan Airlines, Jetstar, Korean Air, Peach, Qatar Airways, Thai Lion Air, Turkish Airlines, United Airlines, WestJet (14).
How long does the flight from Seattle to Osaka take?
Across the 69 fares Routavio observed, the average journey time is 27h 04m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which airline has the lowest fare from Seattle to Osaka?
Cheapest airline from Seattle to Osaka: Cathay Pacific, from €393 (checked 24 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
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Recently observed fares. Prices may change.