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St. Louis

$443+ Cheap flights from Frankfurt (FRA) to St. Louis (STL)

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Frankfurt am Main to Lambert-St Louis are usually found in November or April, booked 47 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Frankfurt to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Frankfurt (FRA) to St. Louis (STL). 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$598
(OneTravel)

One-way from

$443
(Mytrip)

Popular in

July

Cheapest in

November

Average price

$620

Good round-trip deal

$688 or less

Good one-way deal

$690 or less
Provider with most accurate pricing for Frankfurt am Main-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Frankfurt am Main-Lambert-St Louis flights.
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From Frankfurt am Main to Lambert-St Louis
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One-way flight from Frankfurt am Main to Lambert-St Louis
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Highest demand for flights based on searches. 9% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Frankfurt am Main to Lambert-St Louis.
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Price to beat on a one-way flight from Frankfurt am Main to Lambert-St Louis.
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Find flight deals from Frankfurt to St. Louis

Cheapest flights from Frankfurt to St. Louis
Explore the most affordable flight options available from Frankfurt to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This British Airways deal was found by Cheapflights users on 4/17. 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.
Fri 4/2510:55 amFRA - STL
1 stop15h 34mBritish Airways
Fri 5/94:52 pmSTL - FRA
2 stops18h 23mBritish Airways
Deal found 4/17$598
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/19:55 amFRA - STL
2 stops20h 45mUnited Airlines
Thu 5/81:10 pmSTL - FRA
2 stops15h 55mUnited Airlines
Deal found 4/17$599
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/89:45 amFRA - STL
2 stops17h 13mAir Canada
Sat 5/177:30 amSTL - FRA
2 stops17h 40mAir Canada
Deal found 4/17$601
This Lufthansa deal was found by Cheapflights users on 4/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/910:40 amFRA - STL
Nonstop9h 50mLufthansa
Thu 5/151:10 pmSTL - FRA
2 stops13h 55mLufthansa
Deal found 4/17$604
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 5/109:20 amFRA - STL
2 stops21h 31mAmerican Airlines
Thu 5/151:59 pmSTL - FRA
1 stop34h 21mAmerican Airlines
Deal found 4/17$609
This Billigflug deal was found by Cheapflights users on 4/17. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/278:50 amFRA - STL
1 stop18h 14mMultiple Airlines
Sun 5/111:30 pmSTL - FRA
2 stops14h 35mMultiple Airlines
Deal found 4/17$612
This Delta deal was found by Cheapflights users on 4/17. 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.
Fri 5/92:15 pmFRA - STL
2 stops16h 23mDelta
Thu 5/156:00 amSTL - FRA
2 stops19h 40mDelta
Deal found 4/17$633
This lastminute.com deal was found by Cheapflights users on 4/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/911:00 amFRA - STL
2 stops19h 51mVirgin Atlantic
Sat 6/215:23 pmSTL - FRA
1 stop32h 32mVirgin Atlantic
Deal found 4/17$638
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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 4/2011:30 amFRA - STL
2 stops17h 42mFinnair
Fri 5/910:36 amSTL - FRA
1 stop15h 09mFinnair
Deal found 4/17$1,025
This KLM deal was found by Cheapflights users on 4/17. 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.
Sun 5/117:00 amFRA - STL
2 stops16h 35mKLM
Thu 5/151:09 pmSTL - FRA
1 stop12h 46mKLM
Deal found 4/17$1,048
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/277:00 amFRA - STL
3 stops20h 39mScandinavian Airlines
Sun 5/111:09 pmSTL - FRA
2 stops18h 31mScandinavian Airlines
Deal found 4/17$1,389
This Austrian Airlines deal was found by Cheapflights users on 4/17. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/128:20 amFRA - STL
2 stops22h 29mAustrian Airlines
Fri 5/161:10 pmSTL - FRA
2 stops35h 20mAustrian Airlines
Deal found 4/17$1,930

Cheapflights Fare Finder

Customize your flight search to find flights from Frankfurt to St. Louis 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 April 17, 2025.
Use the filters below to find and compare flights from Frankfurt am Main Airport to St. Louis that are best for you.

Fly from

Frankfurt

Fly to

St. Louis

Route

Depart

Return

Price

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 5/1

9:55 am-7:58 pm

1 stop17h 03m

Lambert-St Louis

Thu 5/8

1:30 pm-8:10 am

1 stop11h 40m

$598

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 5/1

9:55 am-11:40 pm

2 stops20h 45m

Lambert-St Louis

Thu 5/8

1:10 pm-12:05 pm

2 stops15h 55m

$599

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/9

10:40 am-1:30 pm

Nonstop9h 50m

Lambert-St Louis

Thu 5/15

1:10 pm-10:05 am

2 stops13h 55m

$604

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sat 5/10

9:20 am-11:51 pm

2 stops21h 31m

Lambert-St Louis

Thu 5/15

1:59 pm-7:20 am

1 stop34h 21m

$609

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 4/27

8:50 am-8:04 pm

1 stop18h 14m

Lambert-St Louis

Sun 5/11

1:30 pm-11:05 am

2 stops14h 35m

$612

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 4/27

6:40 am-4:11 pm

2 stops16h 31m

Lambert-St Louis

Sun 5/11

10:36 am-8:45 am

1 stop15h 09m

$617

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/9

2:15 pm-11:38 pm

2 stops16h 23m

Lambert-St Louis

Thu 5/15

6:00 am-8:40 am

2 stops19h 40m

$633

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/9

11:00 am-11:51 pm

2 stops19h 51m

Lambert-St Louis

Sat 6/21

5:23 pm-8:55 am

1 stop32h 32m

$638

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 5/11

7:00 am-4:35 pm

2 stops16h 35m

Lambert-St Louis

Thu 5/15

1:09 pm-8:55 am

1 stop12h 46m

$1,048

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 4/27

12:10 pm-10:12 pm

2 stops17h 02m

Lambert-St Louis

Sun 5/11

10:36 am-6:35 pm

2 stops24h 59m

$1,136

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 23 results
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Compare providers for flights from Frankfurt to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Frankfurt to St. Louis in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Frankfurt am Main Airport-St. Louis flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Frankfurt am Main Airport-St. Louis flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Frankfurt am Main Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Frankfurt am Main Airport-St. Louis flights, Cheapflights users trust AranGrant the most. AranGrant 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 Frankfurt am Main Airport-St. Louis 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 Frankfurt to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Frankfurt 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.

Cheapflights Insights

Everything you need to know about your flight from Frankfurt am Main Airport to St. Louis

How far ahead should I book a flight from Frankfurt am Main Airport to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Frankfurt to St. Louis. Price data was last updated on April 11, 2025.

The best time to book flights from Frankfurt am Main Airport to St. Louis is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Frankfurt am Main Airport to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $311). Flying from Frankfurt am Main Airport to St. Louis in March is currently the most expensive (average of $356). 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 time of day to fly from FRA to STL?

Find hourly flight availability from Frankfurt to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Frankfurt am Main Airport to St. Louis as you normally would.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated April 17, 2025.
To help decide which airline to fly from Frankfurt am Main to St. Louis, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,327 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What airport do you fly into for flights to St. Louis from Frankfurt am Main?

    For a flight from Frankfurt am Main to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from Frankfurt am Main per day. 5 airlines have flights to Lambert-St Louis from Frankfurt am Main on a regular basis.

  • What are the cheapest airlines flying from Frankfurt am Main Airport to St. Louis round-trip?

    Cheapflights users have booked flights from Frankfurt am Main Airport to St. Louis round-trip from $598. Other airlines that can offer you cheap pricing are United Airlines, from $599, and Lufthansa, from $604. Air Canada is priced at 17% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Frankfurt am Main Airport to St. Louis one-way?

    $559 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Iberia and British Airways, with prices starting from $617 and $629, respectively.

  • What are the cheapest flights from Frankfurt am Main Airport to St. Louis?

    The cheapest flight price from Frankfurt am Main Airport to St. Louis is $609. On average you can expect to pay $748. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $579.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Frankfurt to St. Louis 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 Frankfurt am Main Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $311). Flying from Frankfurt am Main Airport to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Frankfurt am Main Airport?

Book flights to Frankfurt am Main Airport if you plan to visit one of these locations
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

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Alternative routes for Frankfurt to St. Louis

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Top 5 airlines flying from Frankfurt to St. Louis

Discover the top 5 airlines that operate flights from Frankfurt to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$519Average$523FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$549Average$676FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$566Average$660FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$579Average$811FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$581Average$718FlexibilityNo cancel feeOn-time69%

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