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$435+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:05 amSTL - BSL
2 stops20h 45mDelta
Thu 1/1510:30 amBSL - STL
2 stops30h 09mDelta
Deal found 12/1$611
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:05 amSTL - BSL
2 stops20h 45mDelta
Fri 1/166:05 amBSL - STL
2 stops17h 34mDelta
Deal found 12/1$612
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:05 amSTL - BSL
2 stops20h 45mDelta
Mon 1/192:30 pmBSL - STL
2 stops33h 07mDelta
Deal found 12/1$624
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:05 amSTL - BSL
2 stops20h 45mDelta
Sun 1/1811:15 amBSL - STL
2 stops19h 24mDelta
Deal found 12/1$662
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:40 amSTL - BSL
2 stops19h 10mDelta
Thu 1/1510:30 amBSL - STL
2 stops30h 09mDelta
Deal found 12/1$821
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:05 amSTL - BSL
2 stops20h 45mDelta
Tue 1/136:05 amBSL - STL
2 stops21h 01mDelta
Deal found 12/1$822
This British Airways deal was found by Cheapflights users on 12/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:30 pmSTL - BSL
2 stops21h 20mBritish Airways
Wed 12/246:20 amBSL - STL
2 stops38h 49mBritish Airways
Deal found 12/1$832
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:05 pmSTL - BSL
2 stops12h 45mDelta
Mon 1/192:30 pmBSL - STL
2 stops32h 37mDelta
Deal found 12/1$834
This British Airways deal was found by Cheapflights users on 12/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/144:49 pmSTL - BSL
2 stops22h 31mBritish Airways
Mon 1/194:00 pmBSL - STL
2 stops33h 16mBritish Airways
Deal found 12/1$843
This British Airways deal was found by Cheapflights users on 12/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/144:49 pmSTL - BSL
2 stops22h 31mBritish Airways
Fri 1/167:00 amBSL - STL
2 stops37h 09mBritish Airways
Deal found 12/1$848
This British Airways deal was found by Cheapflights users on 12/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/144:49 pmSTL - BSL
2 stops22h 31mBritish Airways
Wed 12/246:20 amBSL - STL
2 stops38h 49mBritish Airways
Deal found 12/1$911
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/152:38 pmSTL - BSL
2 stops16h 12mDelta
Tue 12/2311:15 amBSL - STL
2 stops42h 01mDelta
Deal found 12/1$925

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 December 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$435
(oojo)
Provider with most accurate pricing for Lambert-St Louis-Basel EuroAirport Swiss flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Basel EuroAirport Swiss flights.
Search Deals
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 December 4, 2025.
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

Sun 3/1

6:00 am-3:05 pm

2 stops26h 05m

Basel EuroAirport Swiss

Fri 3/13

7:00 am-10:52 pm

2 stops21h 52m

$435

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

3:50 pm-1:35 pm

1 stop14h 45m

Basel EuroAirport Swiss

Tue 1/20

10:35 am-11:59 pm

2 stops20h 24m

$442

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sat 1/17

12:44 pm-10:05 am

2 stops14h 21m

Basel EuroAirport Swiss

Sat 1/24

2:10 pm-1:55 pm

1 stop30h 45m

$451

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

6:44 pm-9:30 pm

2 stops19h 46m

Basel EuroAirport Swiss

Tue 1/20

7:00 am-6:16 pm

2 stops18h 16m

$462

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

6:45 pm-7:40 pm

2 stops17h 55m

Basel EuroAirport Swiss

Fri 3/13

6:45 am-2:55 pm

1 stop14h 10m

$467

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sat 1/17

4:49 pm-7:40 pm

2 stops19h 51m

Basel EuroAirport Swiss

Sat 1/24

10:45 am-3:29 pm

2 stops35h 44m

$484

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

9:45 am-10:15 am

2 stops17h 30m

Basel EuroAirport Swiss

Tue 1/20

6:05 am-4:39 pm

2 stops17h 34m

$492

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 1/28

11:22 am-9:10 am

2 stops14h 48m

Basel EuroAirport Swiss

Sun 2/1

10:45 am-11:59 pm

2 stops20h 14m

$496

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

12:00 pm-10:15 am

2 stops15h 15m

Basel EuroAirport Swiss

Tue 1/20

11:15 am-11:37 pm

2 stops19h 22m

$497

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 1/28

9:57 am-4:05 pm

2 stops23h 08m

Basel EuroAirport Swiss

Sun 2/1

1:10 pm-11:59 pm

2 stops17h 49m

$498

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

  • 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 British Airways and Lufthansa fly from St. Louis to Basel EuroAirport Swiss in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 11h 20m. Airlines will cover a distance of 4630 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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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