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St. Louis

$450+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
May 4 — May 111
Sun 5/4
Sun 5/11
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 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$619
(Lufthansa)

One-way from

$450
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$620

Good round-trip deal

$620 or less

Good one-way deal

$665 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. 10% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 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 29, 2025.

This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/112:40 pmFRA - STL
1 stop17h 05mLufthansa
Mon 7/71:20 pmSTL - FRA
2 stops13h 45mLufthansa
Deal found 4/29$619
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1110:00 amFRA - STL
1 stop33h 36mAir Canada
Thu 8/71:30 pmSTL - FRA
1 stop11h 40mAir Canada
Deal found 4/28$622
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 5/169:55 amFRA - STL
1 stop17h 03mUnited Airlines
Fri 5/301:30 pmSTL - FRA
1 stop11h 40mUnited Airlines
Deal found 4/28$624
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:10 amFRA - STL
2 stops16h 32mAmerican Airlines
Sat 6/214:17 pmSTL - FRA
1 stop32h 03mAmerican Airlines
Deal found 4/29$628
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/87:00 amFRA - STL
2 stops20h 40mDelta
Sun 6/226:40 amSTL - FRA
1 stop20h 10mDelta
Deal found 4/29$639
This flugladen.de deal was found by Cheapflights users on 4/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/167:05 amFRA - STL
2 stops16h 30mAir France
Fri 5/302:15 pmSTL - FRA
1 stop12h 35mAir France
Deal found 4/29$643
This lastminute.com deal was found by Cheapflights users on 4/29. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/810:40 amFRA - STL
1 stop14h 25mVirgin Atlantic
Sat 6/215:30 pmSTL - FRA
1 stop32h 25mVirgin Atlantic
Deal found 4/29$648
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/27:15 pmFRA - STL
2 stops28h 07mBritish Airways
Sat 8/91:37 pmSTL - FRA
2 stops26h 03mBritish Airways
Deal found 4/28$663
This Flysmarter deal was found by Cheapflights users on 4/29. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/87:15 amFRA - STL
2 stops15h 15mMultiple Airlines
Sat 6/211:30 pmSTL - FRA
1 stop10h 40mMultiple Airlines
Deal found 4/29$671
This Finnair deal was found by Cheapflights users on 4/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1610:55 amFRA - STL
1 stop14h 26mFinnair
Fri 5/304:52 pmSTL - FRA
2 stops18h 43mFinnair
Deal found 4/29$896
This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:55 amFRA - STL
3 stops22h 44mScandinavian Airlines
Sat 11/153:30 pmSTL - FRA
2 stops21h 15mScandinavian Airlines
Deal found 4/29$1,209
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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.
Wed 5/286:30 amFRA - STL
2 stops19h 59mIberia
Wed 6/41:45 pmSTL - FRA
2 stops25h 50mIberia
Deal found 4/28$1,411

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 29, 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

Tue 7/1

12:40 pm-10:45 pm

1 stop17h 05m

Lambert-St Louis

Mon 7/7

1:20 pm-10:05 am

2 stops13h 45m

$619

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 6/11

10:00 am-12:36 pm

1 stop33h 36m

Lambert-St Louis

Thu 8/7

1:30 pm-8:10 am

1 stop11h 40m

$622

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/16

9:55 am-7:58 pm

1 stop17h 03m

Lambert-St Louis

Fri 5/30

1:30 pm-8:10 am

1 stop11h 40m

$624

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 6/13

6:10 am-3:42 pm

2 stops16h 32m

Lambert-St Louis

Sat 6/21

4:17 pm-7:20 am

1 stop32h 03m

$628

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/16

10:40 am-1:30 pm

Nonstop9h 50m

Lambert-St Louis

Fri 5/30

1:30 pm-8:10 am

1 stop11h 40m

$635

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 6/8

7:00 am-8:40 pm

2 stops20h 40m

Lambert-St Louis

Sun 6/22

6:40 am-9:50 am

1 stop20h 10m

$639

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/16

7:05 am-4:35 pm

2 stops16h 30m

Lambert-St Louis

Fri 5/30

2:15 pm-9:50 am

1 stop12h 35m

$643

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 6/8

10:40 am-6:05 pm

1 stop14h 25m

Lambert-St Louis

Sat 6/21

5:30 pm-8:55 am

1 stop32h 25m

$648

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sat 8/2

7:15 pm-4:22 pm

2 stops28h 07m

Lambert-St Louis

Sat 8/9

1:37 pm-10:40 pm

2 stops26h 03m

$663

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/16

10:55 am-6:21 pm

1 stop14h 26m

Lambert-St Louis

Fri 5/30

4:52 pm-6:35 pm

2 stops18h 43m

$896

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 22 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 25, 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 29, 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 29, 2025.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

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. 4 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 $619. Other airlines that can offer you cheap pricing are Air Canada, from $622, and United Airlines, from $624. Lufthansa is priced at 15% 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?

    $549 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 British Airways and Lufthansa, with prices starting from $619 and $633, 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 $656. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $588.

  • 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
O'Fallon

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Alternative routes for Frankfurt to St. Louis

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Top 4 airlines flying from Frankfurt to St. Louis

Discover the top 4 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$537Average$667FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$566Average$629FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$579Average$805FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$582Average$712FlexibilityNo cancel feeOn-time69%

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