Frankfurt

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

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Apr 13 — Apr 201
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lambert-St Louis to Frankfurt am Main are usually found in November or January, booked 32 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Frankfurt

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Frankfurt (FRA). 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 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$890
(Gotogate)

One-way from

$443
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,251

Good round-trip deal

$975 or less

Good one-way deal

$617 or less
Provider with most accurate pricing for Lambert-St Louis-Frankfurt am Main flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Frankfurt am Main flights.
From Lambert-St Louis to Frankfurt am Main
One-way flight from Lambert-St Louis to Frankfurt am Main
Highest demand for flights based on searches. 19% potential increase in price ($283 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Lambert-St Louis to Frankfurt am Main.
Price to beat on a one-way flight from Lambert-St Louis to Frankfurt am Main.

Find flight deals from St. Louis to Frankfurt

Cheapest flights from St. Louis to Frankfurt
Explore the most affordable flight options available from St. Louis to Frankfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 8, 2025.

This Justfly.com deal was found by Cheapflights users on 4/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:05 pmSTL - FRA
1 stop12h 05mAir Canada
Tue 11/49:45 amFRA - STL
2 stops35h 33mAir Canada
Deal found 4/6$817
This United Airlines deal was found by Cheapflights users on 4/6. 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 10/213:15 pmSTL - FRA
1 stop32h 15mUnited Airlines
Tue 11/45:10 pmFRA - STL
1 stop29h 16mUnited Airlines
Deal found 4/6$823
This Finnair deal was found by Cheapflights users on 4/6. 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.
Thu 10/307:34 amSTL - FRA
1 stop19h 16mMultiple Airlines
Tue 11/410:55 amFRA - STL
1 stop13h 24mMultiple Airlines
Deal found 4/6$863
This Gurufare deal was found by Cheapflights users on 4/5. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:30 pmSTL - FRA
Nonstop8h 55mLufthansa
Wed 10/2210:40 amFRA - STL
Nonstop9h 50mLufthansa
Deal found 4/5$869
This Yatra.com deal was found by Cheapflights users on 4/6. 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 Yatra.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/610:36 amSTL - FRA
1 stop15h 09mFinnair
Tue 5/1311:30 amFRA - STL
2 stops17h 22mFinnair
Deal found 4/6$908
This Air France deal was found by Cheapflights users on 4/6. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/612:51 pmSTL - FRA
2 stops13h 59mAir France
Wed 5/1410:40 amFRA - STL
1 stop19h 58mAir France
Deal found 4/6$924
This Delta deal was found by Cheapflights users on 4/6. 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.
Wed 5/710:45 amSTL - FRA
1 stop16h 05mDelta
Thu 5/1511:50 amFRA - STL
2 stops18h 48mDelta
Deal found 4/6$938
This British Airways deal was found by Cheapflights users on 4/6. 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 12/125:55 pmSTL - FRA
2 stops15h 55mBritish Airways
Fri 12/267:05 amFRA - STL
2 stops21h 57mBritish Airways
Deal found 4/6$948
This Virgin Atlantic deal was found by Cheapflights users on 4/6. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/201:46 pmSTL - FRA
1 stop13h 04mVirgin Atlantic
Sun 5/411:50 amFRA - STL
2 stops18h 46mVirgin Atlantic
Deal found 4/6$980
This Scandinavian Airlines deal was found by Cheapflights users on 4/6. 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.
Tue 10/73:30 pmSTL - FRA
2 stops16h 10mScandinavian Airlines
Tue 10/147:00 amFRA - STL
3 stops20h 49mScandinavian Airlines
Deal found 4/6$1,039
This StudentUniverse deal was found by Cheapflights users on 4/5. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:43 amSTL - FRA
2 stops20h 22mAer Lingus
Wed 11/510:50 amFRA - STL
2 stops17h 51mAer Lingus
Deal found 4/5$1,148
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/27:19 amSTL - FRA
1 stop17h 01mAmerican Airlines
Wed 5/149:20 amFRA - STL
1 stop15h 47mAmerican Airlines
Deal found 4/6$1,174

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Frankfurt 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 8, 2025.
Use the filters below to find and compare flights from St. Louis to Frankfurt am Main Airport that are best for you.

Fly from

St. Louis

Fly to

Frankfurt

Route

Depart

Return

Price

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 9/8

1:30 pm-11:00 am

1 stop14h 30m

Frankfurt am Main

Fri 9/19

5:35 pm-2:33 pm

2 stops27h 58m

$871

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 9/9

11:51 am-9:50 am

2 stops14h 59m

Frankfurt am Main

Tue 9/23

10:40 am-6:02 pm

1 stop14h 22m

$873

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 9/10

9:17 am-11:00 am

2 stops18h 43m

Frankfurt am Main

Fri 10/10

10:40 am-1:30 pm

Nonstop9h 50m

$890

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 5/5

1:30 pm-8:10 am

1 stop11h 40m

Frankfurt am Main

Tue 5/13

9:55 am-3:47 pm

3 stops36h 52m

$906

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 5/6

10:36 am-8:45 am

1 stop15h 09m

Frankfurt am Main

Tue 5/13

11:30 am-9:52 pm

2 stops17h 22m

$908

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 5/6

12:51 pm-9:50 am

2 stops13h 59m

Frankfurt am Main

Wed 5/14

10:40 am-11:38 pm

1 stop19h 58m

$924

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 5/4

6:50 am-9:50 am

1 stop20h 00m

Frankfurt am Main

Fri 5/16

10:40 am-8:39 pm

1 stop16h 59m

$933

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 4/27

3:30 pm-7:25 am

Nonstop8h 55m

Frankfurt am Main

Sun 5/11

10:40 am-1:30 pm

Nonstop9h 50m

$936

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 4/27

5:27 pm-10:25 pm

2 stops21h 58m

Frankfurt am Main

Sun 5/11

6:40 am-8:58 pm

2 stops21h 18m

$997

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/30

12:46 pm-2:40 pm

2 stops18h 54m

Frankfurt am Main

Wed 5/14

7:00 am-11:38 pm

3 stops23h 38m

$1,159

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Showing 1-10 of 29 results
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Compare providers for flights from St. Louis to Frankfurt

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 St. Louis to Frankfurt in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 St. Louis-Frankfurt am Main Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Frankfurt am Main Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Frankfurt am Main Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Frankfurt am Main Airport 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-Frankfurt am Main Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for St. Louis to Frankfurt am Main Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Frankfurt am Main Airport trip
Airports
STL

Security lines at STL are straightforward, averaging 5-10 minutes off-peak. Check real-time wait times online before heading to the airport.

Read more about STLby Taryn White
FRA

For a quick city transfer, take the S8 or S9 trains from FRA T1 to Frankfurt Hauptbahnhof, running every 15 minutes.

Read more about FRAby Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on FRA

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Best time to book a flight from St. Louis to Frankfurt

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Frankfurt. Price data was last updated on April 4, 2025.

The price you pay for your flight from St. Louis to Frankfurt am Main Airport may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main Airport (average of $729). Flying from St. Louis to Frankfurt am Main Airport in June is currently the most expensive (average of $1,079). 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 STL to FRA?

Find hourly flight availability from St. Louis to Frankfurt. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 8, 2025.

One of the essential ways to save on airfare from St. Louis to Frankfurt am Main Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 12% on airfare.

Rainfall in Frankfurt by month

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

In terms of precipitation, rainfall in Frankfurt am Main Airport ranges from 1.6 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Frankfurt am Main Airport when rainfall is around 1.6 in.

Temperature in Frankfurt by month

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

If weather is an important factor for your trip to Frankfurt am Main Airport, 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 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Frankfurt

Get insights into the airlines that provide service to Frankfurt. 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 Frankfurt. Reviews last updated April 8, 2025.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and KLM from St. Louis to Frankfurt am Main to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Frankfurt. 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 from for flights from St. Louis to Frankfurt am Main?

    For a flight from St. Louis to Frankfurt am Main, you will be flying from 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 outbound flights to Frankfurt am Main per day. 7 airlines have flights to Frankfurt am Main from Lambert-St Louis on a regular basis.

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

    United Airlines, at $905, was found to be the cheapest airline from St. Louis to Frankfurt am Main Airport.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. United Airlines is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $605. Lufthansa flights start at $619 while deals on American Airlines start at $621 one-way.

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

    Looking for the cheapest flight from St. Louis to Frankfurt am Main Airport? While on average our users pay $2,054, our data indicates the cheapest price to be $505. The most popular route (Lambert-St Louis - Frankfurt am Main), is priced around $863.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main Airport (average of $729). Flying from St. Louis to Frankfurt am Main Airport in June is currently the most expensive (average of $1,079). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Koblenz
Wurzburg
Speyer
Wiesbaden
Mainz
Trier
Baden-Baden
Boppard
Bensheim
Darmstadt
Heilbronn
Cochem
Nuerburg

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Alternative routes for St. Louis to Frankfurt

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

Top 7 airlines flying from St. Louis to Frankfurt

Discover the top 7 airlines that operate flights from St. Louis to Frankfurt. 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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$576Average$979FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$629Average$969FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$788Average$1,185FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$815Average$1,252FlexibilityNo cancel feeOn-time76%
KLMCheapest$877Average$1,064FlexibilityNo cancel feeOn-time75%
DeltaCheapest$912Average$1,227FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$970Average$1,304FlexibilityNo cancel feeOn-time67%

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