Frankfurt am Main

$430+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
May 1 — May 81
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Cheapflights Tip: The best prices from Lambert-St Louis to Frankfurt am Main are usually found in March or January, booked 3 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap 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 April 1, 2026.

This Justfly.com deal was found by Cheapflights users on 3/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:30 pm
STL
-
FRA
2 stops23h 15m
Scandinavian Airlines
Sun 10/113:20 pm
FRA
-
STL
2 stops39h 19m
Scandinavian Airlines
Deal found 3/29$806
This Scandinavian Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 8/313:42 pm
STL
-
FRA
2 stops15h 53m
Scandinavian Airlines
Sun 9/63:20 pm
FRA
-
STL
2 stops39h 17m
Scandinavian Airlines
Deal found 3/27$830
This KAYAK deal was found by Cheapflights users on 3/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:42 pm
STL
-
FRA
2 stops21h 03m
Scandinavian Airlines
Wed 9/303:20 pm
FRA
-
STL
2 stops39h 17m
Scandinavian Airlines
Deal found 3/29$840
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Sun 4/199:10 am
STL
-
FRA
1 stop15h 10m
American Airlines
Sun 5/310:55 am
FRA
-
STL
1 stop19h 04m
American Airlines
Deal found 3/27$867
This oojo deal was found by Cheapflights users on 3/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:13 pm
STL
-
FRA
1 stop30h 02m
British Airways
Sun 11/810:55 am
FRA
-
STL
1 stop15h 34m
British Airways
Deal found 3/27$879
This AirNGo deal was found by Cheapflights users on 3/27. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/301:30 pm
STL
-
FRA
2 stops18h 05m
Scandinavian Airlines
Sun 9/63:20 pm
FRA
-
STL
2 stops39h 17m
Scandinavian Airlines
Deal found 3/27$895
This flugladen.de deal was found by Cheapflights users on 3/26. 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.
Sun 4/1912:27 pm
STL
-
FRA
1 stop13h 18m
Iberia
Sun 5/310:55 am
FRA
-
STL
1 stop19h 04m
Iberia
Deal found 3/26$898
This Booking.com deal was found by Cheapflights users on 3/26. 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.
Sun 4/197:12 am
STL
-
FRA
1 stop18h 33m
British Airways
Sun 5/36:40 am
FRA
-
STL
2 stops22h 39m
British Airways
Deal found 3/26$901
This Condor deal was found by Cheapflights users on 3/30. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:15 am
STL
-
FRA
1 stop12h 30m
Multiple Airlines
Tue 5/1912:30 pm
FRA
-
STL
1 stop14h 30m
Multiple Airlines
Deal found 3/30$924
This KAYAK deal was found by Cheapflights users on 3/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:30 pm
STL
-
FRA
2 stops38h 20m
Scandinavian Airlines
Sun 11/13:15 pm
FRA
-
STL
2 stops39h 24m
Scandinavian Airlines
Deal found 3/31$930
This KAYAK deal was found by Cheapflights users on 3/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:30 pm
STL
-
FRA
2 stops18h 00m
Scandinavian Airlines
Sat 12/53:15 pm
FRA
-
STL
2 stops36h 34m
Scandinavian Airlines
Deal found 3/31$945
This Scandinavian Airlines deal was found by Cheapflights users on 3/27. 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 8/293:42 pm
STL
-
FRA
2 stops15h 53m
Scandinavian Airlines
Sun 9/63:20 pm
FRA
-
STL
2 stops39h 17m
Scandinavian Airlines
Deal found 3/27$950

Find 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 April 1, 2026.

Round-trip from

$830
(Scandinavian Airlines)

One-way from

$430
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$1,223
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. 16% potential increase in price ($227 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 April 1, 2026.
Use the filters below to find and compare flights from St. Louis to Frankfurt am Main that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 5/10

7:12 am-8:45 am

1 stop18h 33m

Frankfurt am Main

Sun 5/17

10:55 am-10:59 pm

1 stop19h 04m

$1,038

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 9/15

8:44 am-10:00 am

2 stops18h 16m

Frankfurt am Main

Wed 9/16

5:40 pm-12:49 pm

2 stops26h 09m

$1,073

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/17

1:30 pm-2:35 pm

2 stops18h 05m

Frankfurt am Main

Mon 8/31

7:00 am-8:50 pm

3 stops20h 50m

$1,171

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 9/22

2:40 pm-9:15 pm

2 stops23h 35m

Frankfurt am Main

Sat 9/26

3:05 pm-2:18 pm

2 stops54h 13m

$1,250

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/17

7:56 pm-12:40 pm

2 stops33h 44m

Frankfurt am Main

Mon 8/31

2:45 pm-11:58 pm

1 stop16h 13m

$1,268

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 9/20

9:00 am-8:40 am

1 stop16h 40m

Frankfurt am Main

Wed 9/30

10:15 am-8:31 pm

2 stops17h 16m

$1,285

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 9/19

4:13 pm-5:45 pm

2 stops18h 32m

Frankfurt am Main

Tue 9/29

11:00 am-4:49 pm

1 stop12h 49m

$1,292

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 9/18

7:32 pm-12:40 pm

2 stops34h 08m

Frankfurt am Main

Tue 9/22

2:15 pm-11:59 pm

1 stop16h 44m

$1,328

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 5/10

2:15 pm-10:00 pm

3 stops24h 45m

Frankfurt am Main

Sun 5/17

6:40 pm-8:09 pm

3 stops32h 29m

$1,361
Quickest round-trip

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 5/1

3:20 pm-9:55 am

1 stop11h 35m

Frankfurt am Main

Fri 5/15

10:40 am-1:25 pm

Nonstop9h 45m

$1,420

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 March 13, 2026.

The best time to book flights from St. Louis to Frankfurt am Main is 2 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, August is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $470). Flying from St. Louis to Frankfurt am Main in April is currently the most expensive (average of $854). 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 April 1, 2026.

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

How much does it cost to fly round-trip from St. Louis to Frankfurt am Main?

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 April 1, 2026.
Read reviews from past customers who have flown United Airlines,American Airlines, andAir Canada from St. Louis to Frankfurt am Main. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

  • How long is the flight from St. Louis to Frankfurt am Main?

    A quick flight from St. Louis to Frankfurt am Main can take about 18h 05m. British Airways provides one of the quickest options available for as low as $1,171. Airlines will cover a distance of 4577 mi. This flight may include one or multiple stops.

  • 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 $390. Additional round-trip tickets that might be worth considering are offered by British Airways and Delta, with the lowest prices starting at $470 and $610, respectively. You may be able to fly from St. Louis to Frankfurt am Main for 66% less than the average price by searching for these airlines.

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

    Looking at all options, your cheapest flight can be booked for $324. While the most popular route (Lambert-St Louis - Frankfurt am Main) can be booked for $895 on average, our data indicates $1,606 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, August is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $470). Flying from St. Louis to Frankfurt am Main in April is currently the most expensive (average of $854). 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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$390Average$946FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$470Average$906FlexibilityNo cancel feeOn-time70%
DeltaCheapest$610Average$919FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$683Average$1,134FlexibilityNo cancel feeOn-time69%
KLMCheapest$723Average$1,115FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$816Average$1,319FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$916Average$1,202FlexibilityNo cancel feeOn-time67%

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