$424 Find Cheap Flights from St. Louis to Osaka - Compare and Save

In the last 5 days, the lowest price for a flight from St. Louis to Osaka Kansai Intl Airport was $424 for a one-way ticket and $995 for a round-trip.

Yes, you’ll need a passport to travel to Osaka from St. Louis.

On your way to Osaka, you’ll fly out from Lambert-St Louis. You’ll be landing at Osaka Kansai Intl.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Osaka.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Osaka with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and KIX can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Osaka from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.