Frankfurt am Main

$369+ Cheap flights from St. Louis (STL) to Frankfurt am Main

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from Lambert-St Louis to Frankfurt am Main are usually found in November or August, booked 32 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from St. Louis to Frankfurt am Main

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Frankfurt am Main (FK0). 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 June 12, 2025.

Round-trip from

$604
(American Airlines)

One-way from

$369
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$1,669
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. 20% potential increase in price ($294 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
Average for round-trip flights in June 2025

Find flight deals from St. Louis to Frankfurt am Main

Cheapest flights from St. Louis to Frankfurt am Main
Explore the most affordable flight options available from St. Louis to Frankfurt am Main. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 10/2112:50 pmSTL - FRA
1 stop11h 30mAmerican Airlines
Tue 11/410:55 amFRA - STL
1 stop13h 24mAmerican Airlines
Deal found 6/10$604
This Finnair deal was found by Cheapflights users on 6/11. 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.
Wed 10/299:42 amSTL - FRA
2 stops17h 08mMultiple Airlines
Fri 11/710:55 amFRA - STL
2 stops17h 17mMultiple Airlines
Deal found 6/11$609
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 11/123:50 pmSTL - FRA
Nonstop8h 40mUnited Airlines
Thu 11/205:10 pmFRA - STL
2 stops28h 10mUnited Airlines
Deal found 6/12$633
This Booking.com deal was found by Cheapflights users on 6/12. 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.
Wed 11/1210:30 amSTL - FRA
2 stops17h 40mAir Canada
Thu 11/209:45 amFRA - STL
2 stops36h 44mAir Canada
Deal found 6/12$638
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Wed 10/2911:49 amSTL - FRA
1 stop13h 36mLufthansa
Fri 11/710:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 6/11$644
This deal was found by Cheapflights users on 6/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:30 pmSTL - FRA
1 stop12h 25mDelta
Thu 10/1610:40 amFRA - STL
1 stop17h 09mDelta
Deal found 6/10$684
This Flysmarter deal was found by Cheapflights users on 6/11. 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.
Fri 8/17:11 pmSTL - FRA
2 stops19h 54mAir France
Fri 8/1511:00 amFRA - STL
1 stop12h 35mAir France
Deal found 6/11$777
This British Airways deal was found by Cheapflights users on 6/11. 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 8/112:27 pmSTL - FRA
1 stop13h 18mBritish Airways
Fri 8/156:10 amFRA - STL
2 stops19h 20mBritish Airways
Deal found 6/11$847
This Orbitz deal was found by Cheapflights users on 6/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:30 pmSTL - FRA
2 stops18h 00mScandinavian Airlines
Sun 11/308:30 pmFRA - STL
2 stops34h 09mScandinavian Airlines
Deal found 6/12$880
This KLM deal was found by Cheapflights users on 6/11. 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.
Wed 7/910:30 amSTL - FRA
1 stop16h 20mKLM
Mon 7/2810:40 amFRA - STL
1 stop14h 25mKLM
Deal found 6/11$999

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Frankfurt am Main 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 June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Frankfurt am Main that are best for you.

Fly from

St. Louis

Fly to

Frankfurt am Main

Route

Depart

Return

Price

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 10/21

12:50 pm-7:20 am

1 stop11h 30m

Frankfurt am Main

Tue 11/4

10:55 am-5:19 pm

1 stop13h 24m

$604

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 10/29

9:42 am-8:50 am

2 stops17h 08m

Frankfurt am Main

Fri 11/7

10:55 am-9:12 pm

2 stops17h 17m

$609

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/12

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Thu 11/20

5:10 pm-2:20 pm

2 stops28h 10m

$633

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/12

10:30 am-11:10 am

2 stops17h 40m

Frankfurt am Main

Thu 11/20

9:45 am-3:29 pm

2 stops36h 44m

$638

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 10/29

11:49 am-7:25 am

1 stop13h 36m

Frankfurt am Main

Fri 11/7

10:45 am-1:55 pm

Nonstop10h 10m

$644

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 10/7

1:30 pm-8:55 am

1 stop12h 25m

Frankfurt am Main

Thu 10/16

10:40 am-8:49 pm

1 stop17h 09m

$684

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 8/1

7:11 pm-10:05 pm

2 stops19h 54m

Frankfurt am Main

Fri 8/15

11:00 am-4:35 pm

1 stop12h 35m

$777

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 8/1

12:27 pm-8:45 am

1 stop13h 18m

Frankfurt am Main

Fri 8/15

6:10 am-6:30 pm

2 stops19h 20m

$847

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Thu 11/20

1:30 pm-2:30 pm

2 stops18h 00m

Frankfurt am Main

Sun 11/30

8:30 pm-11:39 pm

2 stops34h 09m

$880

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 7/9

10:30 am-9:50 am

1 stop16h 20m

Frankfurt am Main

Mon 7/28

10:40 am-6:05 pm

1 stop14h 25m

$999

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 20 results
1
2

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Frankfurt am Main. Price data was last updated on June 9, 2025.

The best time to book flights from St. Louis to Frankfurt am Main is 32 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 St. Louis to Frankfurt am Main?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $729). Flying from St. Louis to Frankfurt am Main in June is currently the most expensive (average of $1,088). 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 am Main. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

One of the essential ways to save on airfare from St. Louis to Frankfurt am Main 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 10% on airfare.

Rainfall in Frankfurt am Main by month

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

In terms of precipitation, rainfall in Frankfurt am Main 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 when rainfall is around 1.6 in.

Temperature in Frankfurt am Main by month

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

If weather is an important factor for your trip to Frankfurt am Main, 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 am Main

Get insights into the airlines that provide service to Frankfurt am Main. 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 am Main. Reviews last updated June 12, 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. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
8.0
Very good
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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!
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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

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

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Frankfurt am Main from St. Louis. Booking flights from Lambert-St Louis (STL) to Frankfurt am Main should be relatively easy as there are 0 daily outbound flights to Frankfurt am Main from 7 different airlines.

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

    Flying on American Airlines is currently your cheapest option to Frankfurt am Main, with prices starting at $604. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air Canada, with the lowest prices starting at $633 and $638, respectively. You may be able to fly from St. Louis to Frankfurt am Main for 47% less than the average price by searching for these airlines.

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

    $419 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on British Airways and Lufthansa, with prices starting from $424 and $435, respectively.

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

    Looking at all options, your cheapest flight can be booked for $425. While the most popular route (Lambert-St Louis - Frankfurt am Main) can be booked for $604 on average our data indicates $2,364 when flying from St. Louis to Frankfurt am Main.

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

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

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

    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 am Main.

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $729). Flying from St. Louis to Frankfurt am Main in June is currently the most expensive (average of $1,088). 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

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Top 7 airlines flying from St. Louis to Frankfurt am Main

Discover the top 7 airlines that operate flights from St. Louis to Frankfurt am Main. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$576Average$954FlexibilityNo cancel feeOn-time71%
DeltaCheapest$610Average$1,182FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$629Average$946FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$776Average$1,113FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$818Average$1,270FlexibilityNo cancel feeOn-time76%
KLMCheapest$845Average$1,115FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,301FlexibilityNo cancel feeOn-time67%

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