$381 Cheap Flights from Basel (BSL) to St. Louis (STL)

View $381 flight on Wed, Sep 23, 2026Opens in a new window

Popular airlines from EuroAirport Airport (BSL) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Basel to St. Louis (BSL-STL)

Prices were available within the past 7 days and start at $381 for one-way flights and $1,395 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Dolomiti
Fri, Jan 2 - Fri, Jan 9
BSL
Basel
STL
St. Louis
$1,395 Roundtrip, found 5 days ago
$1,395
Roundtrip
found 5 days ago
Select Air Dolomiti flight, departing Fri, Jan 2 from Basel to St. Louis, returning Fri, Jan 9, priced at $1,395 found 5 days ago
Air Dolomiti
Fri, Jan 2 - Fri, Jan 9
BSL
Basel
STL
St. Louis
$1,423 Roundtrip, found 5 days ago
$1,423
Roundtrip
found 5 days ago
Select Air Dolomiti flight, departing Fri, Jan 2 from Basel to St. Louis, returning Fri, Jan 9, priced at $1,423 found 5 days ago
Lufthansa
Mon, Dec 29 - Fri, Jan 2
BSL
Basel
STL
St. Louis
$1,572 Roundtrip, found 2 days ago
$1,572
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Dec 29 from Basel to St. Louis, returning Fri, Jan 2, priced at $1,572 found 2 days ago
Lufthansa
Mon, Dec 29 - Fri, Jan 2
BSL
Basel
STL
St. Louis
$1,577 Roundtrip, found 2 days ago
$1,577
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Dec 29 from Basel to St. Louis, returning Fri, Jan 2, priced at $1,577 found 2 days ago
Lufthansa
Mon, Dec 29 - Fri, Jan 2
BSL
Basel
STL
St. Louis
$1,597 Roundtrip, found 2 days ago
$1,597
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Dec 29 from Basel to St. Louis, returning Fri, Jan 2, priced at $1,597 found 2 days ago
Air Dolomiti
Mon, Dec 29 - Fri, Jan 2
BSL
Basel
STL
St. Louis
$1,598 Roundtrip, found 2 days ago
$1,598
Roundtrip
found 2 days ago
Select Air Dolomiti flight, departing Mon, Dec 29 from Basel to St. Louis, returning Fri, Jan 2, priced at $1,598 found 2 days ago
British Airways
Fri, Jan 2 - Fri, Jan 9
BSL
Basel
STL
St. Louis
$1,609 Roundtrip, found 5 days ago
$1,609
Roundtrip
found 5 days ago
Select British Airways flight, departing Fri, Jan 2 from Basel to St. Louis, returning Fri, Jan 9, priced at $1,609 found 5 days ago
Air Dolomiti
Fri, Jan 2 - Fri, Jan 9
BSL
Basel
STL
St. Louis
$1,647 Roundtrip, found 5 days ago
$1,647
Roundtrip
found 5 days ago
Select Air Dolomiti flight, departing Fri, Jan 2 from Basel to St. Louis, returning Fri, Jan 9, priced at $1,647 found 5 days ago
Austrian Airlines
Mon, Dec 29 - Fri, Jan 2
BSL
Basel
STL
St. Louis
$1,684 Roundtrip, found 2 days ago
$1,684
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Mon, Dec 29 from Basel to St. Louis, returning Fri, Jan 2, priced at $1,684 found 2 days ago
United
Mon, Dec 29 - Fri, Jan 2
BSL
Basel
STL
St. Louis
$1,695 Roundtrip, found 2 days ago
$1,695
Roundtrip
found 2 days ago
Select United flight, departing Mon, Dec 29 from Basel to St. Louis, returning Fri, Jan 2, priced at $1,695 found 2 days ago

Frequently asked questions

How much does a flight from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL) cost?
Secure a cheap one-way flight from $381 or cheap return flight from $1,395 from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL)?
January is the least expensive month to fly from BSL to STL. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline flying from BSL to STL, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BSL to STL?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL)?
Book a flight from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 22% more likely to be canceled.**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 EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your plane ticket from BSL to STL right before your journey is generally more expensive. However, if you're flexible with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a BSL to STL flight and hotel package?
Compared with arranging flights and hotels separately, booking a BSL to STL flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from EuroAirport Airport (BSL) to Lambert-St. Louis Intl. Airport (STL)?
Usually, it's possible to cancel or reschedule your BSL to STL flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
EuroAirport
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$1,395
Distance
4632 mi

Book with confidence

Basel to St. Louis Flights

The cheapest times to fly from Basel 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 Basel to St. Louis are during the month of January. You can find some of the cheapest flights from Basel to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Basel 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 Basel 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 Basel to St. Louis in 2026. You can also book with separate airlines for your outbound and return journeys, from $381 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 Basel 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 Basel 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.

 

Basel to St. Louis Flights

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*Available to One Key members.