Your next trip, last seen at €525
Below averageKorean Air · 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
- €525, departing 27 Nov 2026 (Last checked: 22 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Air Canada, AirAsia, Alaska Airlines, ANA, Asiana Airlines, Cathay Pacific, Eastar Jet, Frontier Airlines, Hainan Airlines, HK Express, JetBlue, Jetstar, Korean Air, Peach, Porter Airlines Canada, Turkish Airlines, United Airlines, WestJet, ZIPAIR (19)
- Typical journey time
- 27h 10m
About this route
Explore the fares we observed from Boston to Osaka. Prices move often, so pick your dates to see the latest options.
- Route distance
- 11,031 km
- Typical journey time
- 27h 10m
- Seen on fares with a connection
- Cathay Pacific, Korean Air, Turkish Airlines, JetBlue, Hainan Airlines, United Airlines, Alaska Airlines, Frontier Airlines, Air Canada, Peach, ZIPAIR (11)
- Alternative airports
- PSM, ITM, UKB
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
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
- Portsmouth International Airport at Pease (PSM) → Boston, city gazetteer reference point (42.3584, -71.0598): ≈ 82 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 Boston to Osaka: Korean Air, from €525 (checked 22 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Korean Air | €525Nov 27, 2026 | 14 |
| Alaska Airlines | €536Nov 16, 2026 | 3 |
| Frontier Airlines | €547Nov 9, 2026 | 5 |
| JetBlue | €552Nov 3, 2026 | 6 |
| Hainan Airlines | €616Jan 6, 2027 | 9 |
| Turkish Airlines | €676Dec 1, 2026 | 8 |
| Cathay Pacific | €677Jan 7, 2027 | 13 |
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 Boston to Osaka?
The lowest fare Routavio has observed is €525, found on 22 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Boston to Osaka?
In our observations November 2026 is the cheapest month so far, at €525.
Are there direct flights from Boston to Osaka?
Our data holds no non-stop flight from Boston to Osaka. The fares on this page include at least one stop.
Which airlines fly from Boston to Osaka?
Routavio has seen these carriers on the route: Air Canada, AirAsia, Alaska Airlines, ANA, Asiana Airlines, Cathay Pacific, Eastar Jet, Frontier Airlines, Hainan Airlines, HK Express, JetBlue, Jetstar, Korean Air, Peach, Porter Airlines Canada, Turkish Airlines, United Airlines, WestJet, ZIPAIR (19).
How long does the flight from Boston to Osaka take?
Across the 65 fares Routavio observed, the average journey time is 31h 10m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Boston to Osaka fares were non-stop?
None of the 65 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which airline has the lowest fare from Boston to Osaka?
Cheapest airline from Boston to Osaka: Korean Air, from €525 (checked 22 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.