$564 Cheap Flights from Sapporo (CTS) to St. Louis (STL)

View $564 flight on Tue, Sep 9, 2025Opens in a new window

Popular airlines from New Chitose Intl. Airport (CTS) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Sapporo to St. Louis (CTS-STL)

Prices were available within the past 7 days and start at $564 for one-way flights and $1,131 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,131 Roundtrip, found 17 hours ago
$1,131
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,131 found 17 hours ago
American Airlines
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,132 Roundtrip, found 17 hours ago
$1,132
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,132 found 17 hours ago
EVA Airways
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,154 Roundtrip, found 17 hours ago
$1,154
Roundtrip
found 17 hours ago
Select EVA Airways flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,154 found 17 hours ago
All Nippon Airways
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,156 Roundtrip, found 17 hours ago
$1,156
Roundtrip
found 17 hours ago
Select All Nippon Airways flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,156 found 17 hours ago
EVA Airways
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,163 Roundtrip, found 17 hours ago
$1,163
Roundtrip
found 17 hours ago
Select EVA Airways flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,163 found 17 hours ago
Asiana Airlines
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,275 Roundtrip, found 17 hours ago
$1,275
Roundtrip
found 17 hours ago
Select Asiana Airlines flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,275 found 17 hours ago
All Nippon Airways
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,283 Roundtrip, found 17 hours ago
$1,283
Roundtrip
found 17 hours ago
Select All Nippon Airways flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,283 found 17 hours ago
China Airlines
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,318 Roundtrip, found 17 hours ago
$1,318
Roundtrip
found 17 hours ago
Select China Airlines flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,318 found 17 hours ago
All Nippon Airways
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,323 Roundtrip, found 17 hours ago
$1,323
Roundtrip
found 17 hours ago
Select All Nippon Airways flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,323 found 17 hours ago
All Nippon Airways
Tue, Sep 2 - Mon, Sep 8
CTS
Sapporo
STL
St. Louis
$1,330 Roundtrip, found 17 hours ago
$1,330
Roundtrip
found 17 hours ago
Select All Nippon Airways flight, departing Tue, Sep 2 from Sapporo to St. Louis, returning Mon, Sep 8, priced at $1,330 found 17 hours ago
Flights from Sapporo (CTS) to St. Louis (STL)
Origin airport
New Chitose
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Air Canada, All Nippon Airways, American Airlines, Cathay Pacific, Japan Airlines, United
Roundtrip price
$1,131
Distance
5928 mi

Sapporo to St. Louis Flights

The cheapest times to fly from Sapporo to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sapporo to St. Louis are during the month of September. You can find some of the cheapest flights from Sapporo to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sapporo to St. Louis

Sunday is one of the best days to book for cheap flights from Sapporo to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sapporo to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sapporo to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $564 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sapporo to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sapporo to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from CTS to STL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CTS to STL?
The cheapest flights from CTS to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CTS to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CTS to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL)?
There are no daily nonstop flights departing from New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from CTS to STL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until right before your break to book a ticket from CTS to STL generally means paying more. While you might find some last-minute discounts, there's no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a CTS to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking a CTS to STL flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place takes the hassle out of travel planning. Just secure your flights and choose from our extensive range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from New Chitose Airport (CTS) to Lambert-St. Louis Intl. Airport (STL)?
It's usually possible to reschedule or cancel your CTS to STL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.