$437 Cheap Japan Airlines flights St. Louis (STL) to Tokyo (NRT)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap JAL round-trip flights from $865 from STL to NRT. Affordable one-way fares from $437 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to jet off to Tokyo with JAL. You could also find great deals on return and one-way fares in February.

Start your search for JAL flights from STL to NRT about one month before you want to go. The most affordable time to book an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary and fare class, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers who book on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct journey from STL to NRT with JAL or another airline, check the “Nonstop” filter when searching for tickets.

Search JAL’s earliest flights from STL to NRT by selecting our “Early Morning” and “Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Catch a JAL flight from Lambert-St. Louis Intl. Airport (STL) to Tokyo, and you’ll probably arrive at Narita Intl. Airport (NRT). This is the airline’s primary hub in this destination.

For checked luggage, passengers can take 2 checked-in bags weighing up to 50 lb with dimensions not exceeding 79 inches. You can also bring 1 cabin bag in the cabin when flying standard economy from STL to NRT with JAL. This carry-on must weigh less than 22 lb and be no larger than 21 inches x 15 inches x 9 inches. Going over these restrictions can mean extra fees, so check JAL’s baggage allowance policies before you pack.

A 5-star airline rating and the opportunity to collect points through Japan Airlines Mileage Bank are the start of the reasons to jet off from STL to NRT with JAL. Plus, when you sign up to Expedia’s free One Key™ program, you can receive OneKeyCash™* on top of JAL’s loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your fare type, a fee is typically charged if you modify or cancel your booking more than 24 hours after it’s been confirmed. To find plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when you search for flights. For more details on modifying or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”