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$448+ Cheap flights from St. Louis (STL) to Basel EuroAirport Swiss (BSL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap 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 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$448
(oojo)
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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Find 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 14, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:59 am
STL
-
BSL
2 stops19h 11m
British Airways
Fri 3/67:00 am
BSL
-
STL
2 stops23h 35m
British Airways
Deal found 1/13$448
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/274:05 pm
STL
-
BSL
2 stops14h 30m
Multiple Airlines
Fri 3/66:45 am
BSL
-
STL
1 stop14h 10m
Multiple Airlines
Deal found 1/13$480
This United Airlines deal was found by Cheapflights users on 1/13. 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 2/103:11 pm
STL
-
BSL
2 stops14h 19m
United Airlines
Tue 2/179:50 am
BSL
-
STL
2 stops36h 39m
United Airlines
Deal found 1/13$498
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Thu 2/2611:25 am
STL
-
BSL
2 stops18h 05m
United Airlines
Thu 3/59:50 am
BSL
-
STL
2 stops16h 23m
United Airlines
Deal found 1/12$500
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Fri 1/239:57 am
STL
-
BSL
2 stops23h 08m
United Airlines
Tue 1/279:50 am
BSL
-
STL
2 stops21h 09m
United Airlines
Deal found 1/11$550
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:35 pm
STL
-
BSL
1 stop18h 15m
British Airways
Fri 9/186:00 am
BSL
-
STL
2 stops21h 03m
British Airways
Deal found 1/13$725
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:30 pm
STL
-
BSL
1 stop19h 20m
Lufthansa
Fri 9/118:25 am
BSL
-
STL
1 stop12h 00m
Lufthansa
Deal found 1/13$740
This Gotogate deal was found by Cheapflights users on 1/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:30 pm
STL
-
BSL
1 stop11h 50m
Multiple Airlines
Fri 9/118:25 am
BSL
-
STL
2 stops40h 52m
Multiple Airlines
Deal found 1/13$747
This American Airlines deal was found by Cheapflights users on 1/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:20 am
STL
-
BSL
2 stops21h 40m
American Airlines
Fri 9/116:00 am
BSL
-
STL
2 stops19h 02m
American Airlines
Deal found 1/13$749
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Fri 9/113:30 pm
STL
-
BSL
2 stops13h 55m
United Airlines
Fri 9/188:25 am
BSL
-
STL
2 stops40h 52m
United Airlines
Deal found 1/13$771
This oojo deal was found by Cheapflights users on 1/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:35 pm
STL
-
BSL
1 stop18h 15m
British Airways
Wed 8/266:40 am
BSL
-
STL
1 stop19h 50m
British Airways
Deal found 1/12$844

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 14, 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

Fri 2/27

4:05 pm-1:35 pm

2 stops14h 30m

Basel EuroAirport Swiss

Fri 3/6

6:45 am-1:55 pm

1 stop14h 10m

$480

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 2/10

3:11 pm-12:30 pm

2 stops14h 19m

Basel EuroAirport Swiss

Tue 2/17

9:50 am-3:29 pm

2 stops36h 39m

$498

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Thu 2/26

11:25 am-12:30 pm

2 stops18h 05m

Basel EuroAirport Swiss

Thu 3/5

9:50 am-7:13 pm

2 stops16h 23m

$500

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/23

9:57 am-4:05 pm

2 stops23h 08m

Basel EuroAirport Swiss

Tue 1/27

9:50 am-11:59 pm

2 stops21h 09m

$550

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 2/11

6:40 pm-4:05 pm

2 stops14h 25m

Basel EuroAirport Swiss

Mon 2/16

1:10 pm-9:40 pm

2 stops15h 30m

$1,154

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

3:50 pm-10:05 am

1 stop11h 15m

Basel EuroAirport Swiss

Sun 1/18

10:45 am-7:27 pm

2 stops15h 42m

$2,000

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

12:44 pm-10:05 am

2 stops14h 21m

Basel EuroAirport Swiss

Sun 1/18

10:45 am-7:27 pm

2 stops15h 42m

$2,187

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sat 2/28

12:15 pm-10:05 am

2 stops14h 50m

Basel EuroAirport Swiss

Wed 3/11

1:10 pm-11:51 pm

2 stops16h 41m

$3,737

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Thu 3/19

1:14 pm-10:15 am

2 stops15h 01m

Basel EuroAirport Swiss

Mon 3/30

1:00 pm-9:08 pm

2 stops15h 08m

$3,838

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sat 1/17

12:44 pm-10:05 am

2 stops14h 21m

Basel EuroAirport Swiss

Mon 1/19

10:35 am-7:27 pm

2 stops15h 52m

$4,102

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

  • 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 United Airlines fly from St. Louis to Basel EuroAirport Swiss in about 14h 19m. 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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