$357 Cheap Flights from Basel (BSL) to St. Louis (STL)

View $357 flight on Fri, Jun 19, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $357 for one-way flights and $613 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Nov 15 - Sun, Aug 23
BSL
Basel
STL
St. Louis
$613 Roundtrip, found 3 days ago
$613
Roundtrip
found 3 days ago
Select British Airways flight, departing Sat, Nov 15 from Basel to St. Louis, returning Sun, Aug 23, priced at $613 found 3 days ago
British Airways
Sat, Nov 15 - Sun, Aug 23
BSL
Basel
STL
St. Louis
$618 Roundtrip, found 3 days ago
$618
Roundtrip
found 3 days ago
Select British Airways flight, departing Sat, Nov 15 from Basel to St. Louis, returning Sun, Aug 23, priced at $618 found 3 days ago
American Airlines
Sat, Nov 15 - Sun, Aug 23
BSL
Basel
STL
St. Louis
$638 Roundtrip, found 3 days ago
$638
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Nov 15 from Basel to St. Louis, returning Sun, Aug 23, priced at $638 found 3 days ago
American Airlines
Mon, Dec 15 - Tue, Dec 23
BSL
Basel
STL
St. Louis
$641 Roundtrip, found 6 days ago
$641
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Dec 15 from Basel to St. Louis, returning Tue, Dec 23, priced at $641 found 6 days ago
American Airlines
Thu, Nov 20 - Wed, Dec 3
BSL
Basel
STL
St. Louis
$641 Roundtrip, found 1 day ago
$641
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Nov 20 from Basel to St. Louis, returning Wed, Dec 3, priced at $641 found 1 day ago
Delta
Sat, Nov 15 - Sun, Nov 16
BSL
Basel
STL
St. Louis
$647 Roundtrip, found 3 days ago
$647
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Nov 15 from Basel to St. Louis, returning Sun, Nov 16, priced at $647 found 3 days ago
British Airways
Sat, Nov 15 - Sun, Aug 23
BSL
Basel
STL
St. Louis
$667 Roundtrip, found 3 days ago
$667
Roundtrip
found 3 days ago
Select British Airways flight, departing Sat, Nov 15 from Basel to St. Louis, returning Sun, Aug 23, priced at $667 found 3 days ago
British Airways
Sat, Nov 15 - Sun, Aug 23
BSL
Basel
STL
St. Louis
$672 Roundtrip, found 3 days ago
$672
Roundtrip
found 3 days ago
Select British Airways flight, departing Sat, Nov 15 from Basel to St. Louis, returning Sun, Aug 23, priced at $672 found 3 days ago
KLM
Sat, Aug 22 - Sat, Aug 29
BSL
Basel
STL
St. Louis
$721 Roundtrip, found 4 days ago
$721
Roundtrip
found 4 days ago
Select KLM flight, departing Sat, Aug 22 from Basel to St. Louis, returning Sat, Aug 29, priced at $721 found 4 days ago
Lufthansa
Tue, Oct 21 - Mon, Oct 27
BSL
Basel
STL
St. Louis
$732 Roundtrip, found 3 days ago
$732
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, Oct 21 from Basel to St. Louis, returning Mon, Oct 27, priced at $732 found 3 days ago

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $641
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $641

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 $357 or cheap return flight from $613 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)?
November 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

Travel information

Origin airport
EuroAirport
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$613
Distance
4632 mi

Book with confidence

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 November. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $357 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.