Cheapest airlines flights from Tokyo to St. Louis

You can choose from 2 airlines that fly from Tokyo to St. Louis, including Alaska Airlines, United Airlines, United Airlines has lowest fares on this route.
Alaska Airlines logo Alaska Airlines
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Tokyo to St. Louis according to previous 12 months data from Trip.com.

Search cheap flights from Tokyo to St. Louis in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$476, and round-trip tickets start at US$1,051.

Displayed flight fares from Tokyo to St. Louis are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Tokyo to St. Louis Flight Details

The distance between Tokyo and St. Louis is about 10,288.52 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$476
Cheapest return ticket priceUS$1,051
Cheapest monthOctober
Peak season for travelJuly
Flight distance10,288.52 km
Popular airlineAlaska Airlines
Flight statistics for the Tokyo–St. Louis route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Tokyo to St. Louis

Which month has the cheapest one-way flights from Tokyo to St. Louis?

Average monthly one-way flight prices from Tokyo to St. Louis, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Tokyo to St. Louis is September, with an average price of US$361; while the month with the highest flight price is usually August, with an average price of up to US$909.

US$909
US$635
US$361
US$87
    Cheapest
  • US$571
    Apr
  • US$672
    May
  • US$695
    Jun
  • US$740
    Jul
  • US$909
    Aug
  • US$361
    Sep
  • US$505
    Oct
  • US$772
    Nov
  • US$446
    Dec
  • US$693
    Jan
  • US$500
    Feb
  • US$854
    Mar

Frequently Asked Questions

  • What are the cheapest flights from Tokyo to St. Louis (TYO-STL)?

    Based on Trip.com data, United Airlines offers one-way fares as low as US$476 on Cheapest nonstop routes (e.g. HND to STL on Tue, Jun 30), while United Airlines offers Cheapest nonstop round-trips from US$1,051 departing on Wed, Jul 8 and returning on Tue, Jul 14.
  • At the moment, several airlines serve connecting flights from Tokyo to St. Louis, including: Alaska Airlines United Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Tokyo to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Tokyo to St. Louis, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jun 30, with one-way flights priced at just US$476.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Tokyo to St. Louis is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Tokyo to St. Louis on June 17, 2026 with Air Canada, with prices starting at US$515.
  • You can land at any one of the following hubs in St. Louis, with Narita International Airport to St. Louis Lambert International Airport (NRT-STL) is by far the most common option on this route: St. Louis Downtown Airport (CPS) St. Louis Lambert International Airport (STL).
  • The time difference between St. Louis and Tokyo is 15h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Tokyo to St. Louis

Which airline offers the cheapest direct flights from Tokyo to St. Louis?

Data is based on the average price of all nonstop flights from Tokyo to St. Louis on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Delta Air Lines provides the lowest-priced direct flights from Tokyo to St. Louis, with fares starting at US$664.

US$197
US$664
US$1,132
US$1,599
US$2,066
Delta Air Lines
US$664
Delta Air Lines
United Airlines
US$717
United Airlines
Alaska Airlines
US$1,085
Alaska Airlines
Hawaiian Airlines
US$1,136
Hawaiian Airlines
American Airlines
US$1,275
American Airlines
Japan Airlines
US$2,066
Japan Airlines

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.