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Frankfurt am Main

$322+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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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 48 days in advance, depart on a Wednesday or Sunday 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 July 21, 2026.

This Condor deal was found by Cheapflights users on 7/18. 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.
Tue 8/1110:25 am
STL
-
FRA
1 stop12h 20m
Multiple Airlines
Tue 8/1812:30 pm
FRA
-
STL
1 stop14h 10m
Multiple Airlines
Deal found 7/18$774
This Expedia deal was found by Cheapflights users on 7/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:13 pm
STL
-
FRA
2 stops17h 37m
Multiple Airlines
Wed 11/256:30 am
FRA
-
STL
2 stops21h 38m
Multiple Airlines
Deal found 7/17$775
This Condor deal was found by Cheapflights users on 7/17. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:25 am
STL
-
FRA
1 stop12h 20m
Multiple Airlines
Tue 8/2512:30 pm
FRA
-
STL
1 stop14h 10m
Multiple Airlines
Deal found 7/17$777
This Travelocity deal was found by Cheapflights users on 7/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:38 am
STL
-
FRA
1 stop14h 37m
Iberia
Sun 11/810:15 am
FRA
-
STL
1 stop16h 15m
Iberia
Deal found 7/17$782
This Travelocity deal was found by Cheapflights users on 7/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:54 pm
STL
-
FRA
1 stop33h 21m
Multiple Airlines
Sun 12/610:15 am
FRA
-
STL
1 stop19h 10m
Multiple Airlines
Deal found 7/19$793
This Condor deal was found by Cheapflights users on 7/20. 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 9/77:00 am
STL
-
FRA
1 stop15h 45m
Multiple Airlines
Fri 9/1112:30 pm
FRA
-
STL
1 stop14h 15m
Multiple Airlines
Deal found 7/20$797
This Condor deal was found by Cheapflights users on 7/18. 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.
Tue 8/1110:25 am
STL
-
FRA
1 stop12h 20m
Multiple Airlines
Fri 8/2112:30 pm
FRA
-
STL
1 stop14h 15m
Multiple Airlines
Deal found 7/18$799
This Condor deal was found by Cheapflights users on 7/18. 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 8/317:00 am
STL
-
FRA
1 stop15h 45m
Multiple Airlines
Tue 9/1512:30 pm
FRA
-
STL
1 stop14h 10m
Multiple Airlines
Deal found 7/18$809
This Condor deal was found by Cheapflights users on 7/16. 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.
Sun 8/308:20 am
STL
-
FRA
1 stop14h 25m
Multiple Airlines
Tue 9/1512:30 pm
FRA
-
STL
1 stop14h 10m
Multiple Airlines
Deal found 7/16$812
This Condor deal was found by Cheapflights users on 7/20. 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 8/107:00 am
STL
-
FRA
1 stop15h 45m
Multiple Airlines
Tue 8/1812:30 pm
FRA
-
STL
1 stop14h 10m
Multiple Airlines
Deal found 7/20$822

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 July 21, 2026.

Round-trip from

$774
(Condor)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$1,578
From Lambert-St Louis to Frankfurt am Main
Search Deals
One-way flight from Lambert-St Louis to Frankfurt am Main
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($270 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 21, 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

Mon 8/10

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Tue 8/18

12:30 pm-7:40 pm

1 stop14h 10m

$833

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 8/30

8:20 am-5:45 am

1 stop14h 25m

Frankfurt am Main

Tue 9/15

12:30 pm-7:40 pm

1 stop14h 10m

$843

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 11/24

7:33 am-7:30 am

1 stop16h 57m

Frankfurt am Main

Wed 12/9

10:45 am-1:45 pm

Nonstop10h 00m

$874

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 11/30

6:13 pm-6:10 pm

2 stops16h 57m

Frankfurt am Main

Mon 12/7

11:35 am-11:58 pm

2 stops19h 23m

$928

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/24

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Mon 9/28

12:30 pm-7:45 pm

1 stop14h 15m

$935

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Thu 11/19

1:30 pm-7:50 am

1 stop11h 20m

Frankfurt am Main

Mon 12/7

10:40 am-8:49 pm

1 stop17h 09m

$984

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 8/16

12:10 pm-6:00 am

1 stop10h 50m

Frankfurt am Main

Tue 9/15

10:40 am-1:25 pm

Nonstop9h 45m

$1,006

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 8/30

12:45 pm-8:45 am

1 stop13h 00m

Frankfurt am Main

Tue 9/15

11:30 am-8:44 pm

2 stops16h 14m

$1,053

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 1/12

9:44 am-7:15 am

1 stop14h 31m

Frankfurt am Main

Tue 1/19

10:15 am-10:59 pm

1 stop19h 44m

$1,057

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 8/11

9:35 pm-7:45 pm

1 stop15h 10m

Frankfurt am Main

Tue 8/25

9:20 am-4:50 pm

1 stop14h 30m

$1,087

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

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

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

Currently, March is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $929). Flying from St. Louis to Frankfurt am Main in June is currently the most expensive (average of $1,758). 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 July 21, 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?

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

The best time to book flights from St. Louis to Frankfurt am Main is 76 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.

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 July 21, 2026.
Read reviews from past customers who have flown United Airlines,Lufthansa, andBritish Airways 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.
United Airlines
7.4
Good
10,015 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hanan,Aug 2023

IAH - FRA

Too much turbulence, I know it’s not the airline’s fault, but it made the flight not comfortable
United Airlines
7.4
Good
10,015 reviews
United Airlines
7.4
Good
10,015 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hanan,Aug 2023

IAH - FRA

Too much turbulence, I know it’s not the airline’s fault, but it made the flight not comfortable
Lufthansa
6.8
Okay
8,152 reviews
United Airlines
7.4
Good
10,015 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hanan,Aug 2023

IAH - FRA

Too much turbulence, I know it’s not the airline’s fault, but it made the flight not comfortable
British Airways
6.7
Okay
8,124 reviews
United Airlines
7.4
Good
10,015 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hanan,Aug 2023

IAH - FRA

Too much turbulence, I know it’s not the airline’s fault, but it made the flight not comfortable

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 is 1 daily outbound flight to Frankfurt am Main from 3 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 16h 57m. United Airlines provides one of the quickest options available for as low as $874. Airlines will cover a distance of 4577 mi.

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

    Flying on British Airways is currently your cheapest option to Frankfurt am Main, with prices starting at $410. Additional round-trip tickets that might be worth considering are offered by United Airlines and Lufthansa, with the lowest prices starting at $803 and $830, 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 $425. While the most popular route (Lambert-St Louis - Frankfurt am Main) can be booked for $755 on average, our data indicates $2,819 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, March is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $929). Flying from St. Louis to Frankfurt am Main in June is currently the most expensive (average of $1,758). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from St. Louis to Frankfurt am Main

Discover the top 3 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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$410Average$717FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$803Average$1,334FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$830Average$1,321FlexibilityNo cancel feeOn-time76%

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