What are the cheapest airlines to fly from St. Louis to Basel EuroAirport Swiss one-way?

The cheapest airline one-way is Air France, with whom users have recently found tickets for as low as $487. However, be on the lookout for offers from Lufthansa and American Airlines, as they are both options that can get you from St. Louis to Basel EuroAirport Swiss for a low price.

What is the cheapest month to book a flight from St. Louis to Basel EuroAirport Swiss?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Basel EuroAirport Swiss (average of $545). Flying from St. Louis to Basel EuroAirport Swiss in June is currently the most expensive (average of $1,132). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from St. Louis to Basel EuroAirport Swiss?

Travelers seeking maximum savings on their St. Louis to Basel EuroAirport Swiss flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Basel EuroAirport Swiss ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel EuroAirport Swiss when rainfall is around 1.9 in.

If weather is an important factor for your trip to Basel EuroAirport Swiss, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

What is the cheapest time of day to fly from STL to BSL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Basel EuroAirport Swiss as you normally would.

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.

$342+ Flights from St. Louis to Basel EuroAirport Swiss

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to Basel with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Basel

Round-trip from	$607 (United Airlines)
One-way from	$342 (Kiwi.com)

From Lambert-St Louis to Basel EuroAirport Swiss

Search Deals

One-way flight from Lambert-St Louis to Basel EuroAirport Swiss

Search Deals

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 July 3, 2025.

Mon 9/18:10 amSTL - BSL

2 stops21h 15mUnited Airlines

Wed 12/247:00 amBSL - STL

1 stop13h 55mUnited Airlines

Deal found 7/1

$607

Tue 9/25:30 pmSTL - BSL

2 stops22h 25mLufthansa

Wed 12/247:00 amBSL - STL

1 stop13h 55mLufthansa

Deal found 7/1

$611

Sun 8/179:15 amSTL - BSL

2 stops21h 25mMultiple Airlines

Sun 8/246:20 amBSL - STL

1 stop14h 10mMultiple Airlines

Deal found 7/2

$634

Sun 8/174:19 pmSTL - BSL

2 stops19h 01mBritish Airways

Sun 8/247:05 amBSL - STL

2 stops19h 24mBritish Airways

Deal found 7/2

$653

Sun 10/264:45 pmSTL - BSL

2 stops16h 15mAmerican Airlines

Sun 11/96:35 amBSL - STL

2 stops20h 25mAmerican Airlines

Deal found 7/2

$665

Mon 8/41:30 pmSTL - BSL

2 stops14h 20mAir Canada

Thu 8/148:25 amBSL - STL

2 stops42h 20mAir Canada

Deal found 7/2

$693

Sun 8/39:27 amSTL - BSL

2 stops20h 43mDelta

Wed 8/1310:10 amBSL - STL

2 stops18h 52mDelta

Deal found 7/2

$701

Sun 8/3110:45 amSTL - BSL

2 stops15h 45mKLM

Mon 12/2210:15 amBSL - STL

2 stops18h 14mKLM

Deal found 7/1

$752

Best flights from St. Louis to Basel
Discover carefully curated flight deals from St. Louis to Basel that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Mon 9/18:10 amSTL - BSL

2 stops21h 15mUnited Airlines

Wed 12/247:00 amBSL - STL

1 stop13h 55mUnited Airlines

Deal found 7/1

$607

Tue 9/25:30 pmSTL - BSL

2 stops22h 25mLufthansa

Wed 12/247:00 amBSL - STL

1 stop13h 55mLufthansa

Deal found 7/1

$611

Sun 8/179:15 amSTL - BSL

2 stops21h 25mMultiple Airlines

Sun 8/246:20 amBSL - STL

1 stop14h 10mMultiple Airlines

Deal found 7/2

$634

Sun 8/174:19 pmSTL - BSL

2 stops19h 01mBritish Airways

Sun 8/247:05 amBSL - STL

2 stops19h 24mBritish Airways

Deal found 7/2

$653

Sun 10/264:45 pmSTL - BSL

2 stops16h 15mAmerican Airlines

Sun 11/96:35 amBSL - STL

2 stops20h 25mAmerican Airlines

Deal found 7/2

$665

Mon 8/41:30 pmSTL - BSL

2 stops14h 20mAir Canada

Thu 8/148:25 amBSL - STL

2 stops42h 20mAir Canada

Deal found 7/2

$693

Sun 8/39:27 amSTL - BSL

2 stops20h 43mDelta

Wed 8/1310:10 amBSL - STL

2 stops18h 52mDelta

Deal found 7/2

$701

Sun 8/3110:45 amSTL - BSL

2 stops15h 45mKLM

Mon 12/2210:15 amBSL - STL

2 stops18h 14mKLM

Deal found 7/1

$752

Last-minute flights from St. Louis to Basel
Discover last-minute flight deals from St. Louis to Basel. Data last updated July 3, 2025 and is based on user searches.

Fri 7/111:30 pmSTL - BSL

2 stops14h 25mMultiple Airlines

Fri 7/188:25 amBSL - STL

1 stop12h 05mMultiple Airlines

Deal found 7/3

$1,886

Fri 7/113:30 pmSTL - BSL

1 stop15h 15mLufthansa

Fri 7/188:25 amBSL - STL

1 stop12h 05mLufthansa

Deal found 7/3

$1,917

Sat 7/127:55 amSTL - BSL

2 stops42h 45mTurkish Airlines

Fri 7/1810:35 amBSL - STL

2 stops43h 10mTurkish Airlines

Deal found 7/3

$1,630

Sun 8/39:27 amSTL - BSL

2 stops17h 03mDelta

Thu 8/1410:10 amBSL - STL

2 stops18h 17mDelta

Deal found 7/1

$701

Mon 8/41:30 pmSTL - BSL

2 stops14h 20mAir Canada

Thu 8/148:25 amBSL - STL

2 stops42h 20mAir Canada

Deal found 7/2

$693

Sun 8/179:15 amSTL - BSL

2 stops21h 25mMultiple Airlines

Sun 8/246:20 amBSL - STL

1 stop14h 10mMultiple Airlines

Deal found 7/2

$634

Sun 8/174:19 pmSTL - BSL

2 stops19h 01mBritish Airways

Sun 8/247:05 amBSL - STL

2 stops19h 24mBritish Airways

Deal found 7/2

$653

Fri 8/224:54 pmSTL - BSL

2 stops22h 56mAmerican Airlines

Tue 8/266:45 amBSL - STL

2 stops21h 02mAmerican Airlines

Deal found 7/1

$667

Wed 8/275:30 pmSTL - BSL

2 stops32h 40mUnited Airlines

Wed 12/247:00 amBSL - STL

1 stop13h 55mUnited Airlines

Deal found 7/1

$699

Sun 8/313:30 pmSTL - BSL

1 stop19h 20mLufthansa

Wed 12/247:00 amBSL - STL

1 stop13h 55mLufthansa

Deal found 7/1

$687

Sun 8/3110:45 amSTL - BSL

2 stops15h 45mKLM

Mon 12/2210:15 amBSL - STL

2 stops18h 14mKLM

Deal found 7/1

$752

One-way flights from St. Louis to Basel
Search for one-way flight options from St. Louis to Basel. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Mon 8/252:30 pmSTL - BSL

3 stops25h 50mMultiple Airlines

Deal found 7/1

$342

Tue 8/53:59 pmSTL - BSL

2 stops14h 11mAir France

Deal found 7/2

$487

Sun 8/103:30 pmSTL - BSL

1 stop19h 20mLufthansa

Deal found 7/2

$490

Fri 8/87:23 amSTL - BSL

2 stops20h 37mAmerican Airlines

Deal found 7/3

$522

Thu 8/71:42 pmSTL - BSL

2 stops14h 13mBritish Airways

Deal found 7/2

$532

Thu 8/710:30 amSTL - BSL

2 stops16h 00mDelta

Deal found 7/1

$537

Fri 8/299:00 amSTL - BSL

2 stops20h 25mUnited Airlines

Deal found 7/1

$665

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Basel EuroAirport Swiss that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 9/1

8:10 am-12:25 pm

2 stops21h 15m

Basel EuroAirport Swiss

Wed 12/24

7:00 am-1:55 pm

1 stop13h 55m

$607

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 9/2

5:30 pm-10:55 pm

2 stops22h 25m

Basel EuroAirport Swiss

Wed 12/24

7:00 am-1:55 pm

1 stop13h 55m

$611

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 8/17

9:15 am-1:40 pm

2 stops21h 25m

Basel EuroAirport Swiss

Sun 8/24

6:20 am-1:30 pm

1 stop14h 10m

$634

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 8/17

4:19 pm-6:20 pm

2 stops19h 01m

Basel EuroAirport Swiss

Sun 8/24

7:05 am-7:29 pm

2 stops19h 24m

$653

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

4:45 pm-3:00 pm

2 stops16h 15m

Basel EuroAirport Swiss

Sun 11/9

6:35 am-8:00 pm

2 stops20h 25m

$665

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 8/4

1:30 pm-10:50 am

2 stops14h 20m

Basel EuroAirport Swiss

Thu 8/14

8:25 am-7:45 pm

2 stops42h 20m

$693

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 8/3

9:27 am-1:10 pm

2 stops20h 43m

Basel EuroAirport Swiss

Wed 8/13

10:10 am-10:02 pm

2 stops18h 52m

$701

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 8/31

10:45 am-9:30 am

2 stops15h 45m

Basel EuroAirport Swiss

Mon 12/22

10:15 am-9:29 pm

2 stops18h 14m

$752

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 8/25

2:30 pm-11:20 pm

3 stops25h 50m

$342

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 8/5

3:59 pm-1:10 pm

2 stops14h 11m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 15 results

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.

Reviews of airlines servicing Basel

Get a feel of what it's like to fly with Delta, KLM, and Air France from St. Louis to Basel EuroAirport Swiss by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,367 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air France

7.5

Good

1,465 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from St. Louis to Basel EuroAirport Swiss one-way?
The cheapest airline one-way is Air France, with whom users have recently found tickets for as low as $487. However, be on the lookout for offers from Lufthansa and American Airlines, as they are both options that can get you from St. Louis to Basel EuroAirport Swiss for a low price.
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.
What is the cheapest month to book a flight from St. Louis to Basel EuroAirport Swiss?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Basel EuroAirport Swiss (average of $545). Flying from St. Louis to Basel EuroAirport Swiss in June is currently the most expensive (average of $1,132). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Basel

Kansas City to Basel flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$342+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Basel with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Basel

Round-trip from

One-way from

Find flight deals from St. Louis to Basel

Cheapest flights from St. Louis to BaselExplore 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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Basel EuroAirport Swiss that are best for you.

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.

Reviews of airlines servicing Basel

Get insights into the airlines that provide service to Basel. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Basel. Reviews last updated July 3, 2025.

Get a feel of what it's like to fly with Delta, KLM, and Air France from St. Louis to Basel EuroAirport Swiss by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from St. Louis to Basel EuroAirport Swiss one-way?

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

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

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

What is the cheapest month to book a flight from St. Louis to Basel EuroAirport Swiss?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Basel

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 July 3, 2025.