Frankfurt am Main

$340+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Oct 15 — Oct 221
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Cheapflights Tip: The best prices from Lambert-St Louis to Frankfurt am Main are usually found in November or October, booked 69 days in advance, depart on a Tuesday or Wednesday 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 September 15, 2025.

Round-trip from

$630
(Scandinavian Airlines)

One-way from

$340
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,161
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. 18% potential increase in price ($263 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Average for round-trip flights in September 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 September 15, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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 11/1711:44 amSTL - FRA
2 stops19h 46mScandinavian Airlines
Thu 12/43:15 pmFRA - STL
2 stops36h 48mScandinavian Airlines
Deal found 9/13$630
This Expedia deal was found by Cheapflights users on 9/14. 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.
Mon 10/203:59 pmSTL - FRA
2 stops20h 46mMultiple Airlines
Fri 10/247:20 amFRA - STL
2 stops21h 08mMultiple Airlines
Deal found 9/14$683
This Orbitz deal was found by Cheapflights users on 9/13. 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.
Sun 11/2311:44 amSTL - FRA
2 stops19h 46mMultiple Airlines
Mon 12/87:55 amFRA - STL
2 stops20h 08mMultiple Airlines
Deal found 9/13$713
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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 12/11:55 pmSTL - FRA
2 stops17h 35mScandinavian Airlines
Sat 12/63:15 pmFRA - STL
2 stops39h 26mScandinavian Airlines
Deal found 9/13$750
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 10/203:59 pmSTL - FRA
2 stops15h 41mScandinavian Airlines
Fri 10/247:00 amFRA - STL
3 stops23h 41mScandinavian Airlines
Deal found 9/14$789
This CrystalTravel deal was found by Cheapflights users on 9/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:43 pmSTL - FRA
1 stop12h 17mLufthansa
Thu 12/41:30 pmFRA - STL
1 stop17h 12mLufthansa
Deal found 9/14$799
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 11/2311:44 amSTL - FRA
2 stops19h 46mScandinavian Airlines
Mon 12/86:55 amFRA - STL
3 stops21h 08mScandinavian Airlines
Deal found 9/13$819
This CrystalTravel deal was found by Cheapflights users on 9/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/193:50 pmSTL - FRA
Nonstop8h 40mLufthansa
Fri 12/510:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 9/13$823
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 11/193:50 pmSTL - FRA
Nonstop8h 40mLufthansa
Wed 11/2610:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 9/13$828
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/193:50 pmSTL - FRA
Nonstop8h 40mUnited Airlines
Wed 11/269:45 amFRA - STL
2 stops32h 06mUnited Airlines
Deal found 9/14$840
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 12/33:50 pmSTL - FRA
Nonstop8h 40mLufthansa
Thu 12/111:30 pmFRA - STL
1 stop17h 12mLufthansa
Deal found 9/14$842

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 September 15, 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

Wed 10/29

5:15 pm-7:45 pm

2 stops20h 30m

Frankfurt am Main

Wed 11/5

3:15 pm-9:38 pm

2 stops37h 23m

$630

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 11/17

1:55 pm-2:30 pm

2 stops17h 35m

Frankfurt am Main

Sat 12/6

8:30 pm-9:03 pm

2 stops31h 33m

$630

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 10/20

3:59 pm-7:45 pm

2 stops20h 46m

Frankfurt am Main

Fri 10/24

7:20 am-9:28 pm

2 stops21h 08m

$683

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 12/1

1:55 pm-2:30 pm

2 stops17h 35m

Frankfurt am Main

Sat 12/6

3:15 pm-11:41 pm

2 stops39h 26m

$750

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 11/17

11:44 am-2:30 pm

2 stops19h 46m

Frankfurt am Main

Fri 12/5

8:30 pm-9:58 pm

2 stops32h 28m

$750

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 12/3

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Thu 12/11

1:30 pm-11:42 pm

1 stop17h 12m

$842

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/19

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Fri 12/5

5:10 pm-5:03 pm

2 stops30h 53m

$846

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 11/17

5:24 pm-2:00 pm

1 stop13h 36m

Frankfurt am Main

Thu 12/4

5:10 pm-3:40 pm

2 stops29h 30m

$851

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 11/7

6:30 am-7:25 am

2 stops17h 55m

Frankfurt am Main

Fri 11/21

9:45 am-5:39 pm

2 stops14h 54m

$853

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/19

12:31 pm-6:35 am

1 stop11h 04m

Frankfurt am Main

Fri 12/5

10:45 am-1:55 pm

Nonstop10h 10m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 results
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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 September 12, 2025.

The best time to book flights from St. Louis to Frankfurt am Main is 69 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 $1,091). 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 September 15, 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 8% on airfare.

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 September 15, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Air 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.

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 20h 30m. Scandinavian Airlines provides one of the quickest options available for as low as $630. 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 Delta is currently your cheapest option to Frankfurt am Main, with prices starting at $610. Additional round-trip tickets that might be worth considering are offered by American Airlines and British Airways, with the lowest prices starting at $663 and $706, respectively. You may be able to fly from St. Louis to Frankfurt am Main for 48% 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 $448. While the most popular route (Lambert-St Louis - Frankfurt am Main) can be booked for $630 on average, our data indicates $2,282 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 $1,091). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$610Average$1,182FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$663Average$1,090FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$706Average$969FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$783Average$1,105FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$787Average$1,131FlexibilityNo cancel feeOn-time69%
KLMCheapest$841Average$1,091FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,301FlexibilityNo cancel feeOn-time67%

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