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$421+ Cheap flights from St. Louis (STL) to Basel EuroAirport Swiss (BSL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from St. Louis to Basel

Cheapest flights from St. Louis to Basel
Explore the most affordable flight options available from St. Louis to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This KLM deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:28 pm
STL
-
BSL
2 stops14h 27m
Multiple Airlines
Wed 4/86:30 am
BSL
-
STL
2 stops17h 02m
Multiple Airlines
Deal found 1/28$786
This Cheapflightsfares deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:30 pm
STL
-
BSL
1 stop11h 50m
Lufthansa
Fri 7/248:25 am
BSL
-
STL
1 stop12h 00m
Lufthansa
Deal found 1/27$848
This Cheapflightsfares deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:27 pm
STL
-
BSL
2 stops13h 53m
Lufthansa
Wed 8/268:25 am
BSL
-
STL
1 stop12h 00m
Lufthansa
Deal found 1/27$853
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/319:10 am
STL
-
BSL
2 stops18h 10m
United Airlines
Wed 4/88:25 am
BSL
-
STL
1 stop12h 00m
United Airlines
Deal found 1/28$891
This Cheapflightsfares deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:27 pm
STL
-
BSL
2 stops12h 48m
Lufthansa
Wed 9/168:25 am
BSL
-
STL
1 stop12h 00m
Lufthansa
Deal found 1/28$915
This Cheapflightsfares deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:27 pm
STL
-
BSL
2 stops13h 53m
Lufthansa
Tue 9/228:15 am
BSL
-
STL
1 stop12h 10m
Lufthansa
Deal found 1/28$926
This Cheapflightsfares deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:30 pm
STL
-
BSL
1 stop11h 45m
Lufthansa
Fri 4/102:30 pm
BSL
-
STL
2 stops15h 26m
Lufthansa
Deal found 1/29$932
This Cheapflightsfares deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:27 pm
STL
-
BSL
2 stops12h 48m
Lufthansa
Sun 8/238:20 am
BSL
-
STL
1 stop12h 05m
Lufthansa
Deal found 1/26$941

Find flight deals from St. Louis to Basel

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Basel (BSL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$786
(KLM)

One-way from

$421
(Booking.com)
Provider with most accurate pricing for Lambert-St Louis-Basel EuroAirport Swiss flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Basel EuroAirport Swiss flights.
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From Lambert-St Louis to Basel EuroAirport Swiss
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One-way flight from Lambert-St Louis to Basel EuroAirport Swiss
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Basel that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from St. Louis to Basel EuroAirport Swiss that are best for you.

Fly from

St. Louis

Fly to

Basel

Route

Depart

Return

Price

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 3/31

12:28 pm-9:55 am

2 stops14h 27m

Basel EuroAirport Swiss

Wed 4/8

6:30 am-4:32 pm

2 stops17h 02m

$786

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 7/13

3:30 pm-10:25 am

1 stop11h 55m

Basel EuroAirport Swiss

Fri 7/24

8:25 am-1:25 pm

1 stop12h 00m

$849

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 7/14

3:30 pm-10:20 am

1 stop11h 50m

Basel EuroAirport Swiss

Fri 7/24

8:25 am-1:25 pm

1 stop12h 00m

$849

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 3/31

9:10 am-10:20 am

2 stops18h 10m

Basel EuroAirport Swiss

Wed 4/8

8:25 am-1:25 pm

1 stop12h 00m

$891

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 4/1

3:30 pm-10:15 am

1 stop11h 45m

Basel EuroAirport Swiss

Fri 4/10

2:30 pm-10:56 pm

2 stops15h 26m

$932

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 7/5

3:30 pm-10:10 am

1 stop11h 40m

Basel EuroAirport Swiss

Sat 7/18

6:45 pm-1:25 pm

1 stop25h 40m

$964

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

4:13 pm-10:20 pm

2 stops23h 07m

$421

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

3:50 pm-7:05 pm

3 stops20h 15m

$528

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

3:50 pm-9:55 am

1 stop11h 05m

$559

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 7/20

1:27 pm-9:15 am

2 stops12h 48m

$679

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 12 results
1
2
  • Most accurate provider: When it comes to deals on St. Louis-Basel EuroAirport Swiss flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Basel EuroAirport Swiss flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Basel EuroAirport Swiss flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Basel EuroAirport Swiss flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Basel EuroAirport Swiss flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Basel. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Basel EuroAirport Swiss?

    Airlines like Lufthansa fly from St. Louis to Basel EuroAirport Swiss in about 11h 55m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4630 mi.

  • Can I find deals for flights from St. Louis to Basel that include hotel bookings?

    Yes. In addition to deals on St. Louis to Basel flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Basel?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Basel.

  • Can I find deals for business class flights from St. Louis to Basel?

    Yes. Cheapflights offers flight deals from St. Louis to Basel by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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