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Frankfurt am Main

$281+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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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 62 days in advance, depart on a Tuesday or Monday and return on a Friday

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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:00 amSTL - FRA
1 stop22h 50mMultiple Airlines
Tue 12/301:55 pmFRA - STL
1 stop17h 04mMultiple Airlines
Deal found 12/15$1,769
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:35 pmSTL - FRA
1 stop29h 00mLufthansa
Tue 12/307:00 amFRA - STL
2 stops21h 43mLufthansa
Deal found 12/15$1,838
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:51 amSTL - FRA
2 stops39h 44mMultiple Airlines
Thu 12/251:55 pmFRA - STL
1 stop17h 04mMultiple Airlines
Deal found 12/17$1,873
This Expedia deal was found by Cheapflights users on 12/15. 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.
Tue 12/164:07 pmSTL - FRA
2 stops34h 58mAer Lingus
Tue 12/2310:45 amFRA - STL
2 stops20h 07mAer Lingus
Deal found 12/15$1,950
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:05 amSTL - FRA
2 stops16h 00mLufthansa
Sun 12/2810:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 12/17$1,952
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:35 pmSTL - FRA
2 stops14h 30mLufthansa
Tue 12/301:15 pmFRA - STL
2 stops15h 28mLufthansa
Deal found 12/17$1,958
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:35 pmSTL - FRA
2 stops16h 30mLufthansa
Thu 12/258:45 pmFRA - STL
2 stops26h 42mLufthansa
Deal found 12/17$1,960
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:48 pmSTL - FRA
2 stops15h 17mLufthansa
Sat 1/38:40 amFRA - STL
1 stop20h 03mLufthansa
Deal found 12/17$1,962

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 December 18, 2025.

Round-trip from

$736
(Scandinavian Airlines)

One-way from

$281
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,306
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. 16% potential increase in price ($228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 18, 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

Mon 2/16

3:47 pm-2:30 pm

2 stops15h 43m

Frankfurt am Main

Sun 2/22

3:15 pm-11:36 pm

2 stops39h 21m

$736

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 3/16

7:40 am-2:00 pm

1 stop24h 20m

Frankfurt am Main

Tue 3/24

5:10 pm-3:29 pm

1 stop28h 19m

$854

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 3/17

3:30 pm-9:55 am

1 stop12h 25m

Frankfurt am Main

Wed 3/25

10:45 am-2:55 pm

Nonstop10h 10m

$855

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 3/15

5:41 pm-11:50 am

1 stop12h 09m

Frankfurt am Main

Wed 3/25

10:45 am-2:55 pm

Nonstop10h 10m

$855

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 3/16

3:58 pm-2:30 pm

2 stops16h 32m

Frankfurt am Main

Wed 3/25

3:15 pm-11:42 pm

2 stops38h 27m

$856

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 2/16

10:12 am-7:50 am

1 stop14h 38m

Frankfurt am Main

Fri 2/27

6:55 am-5:42 pm

2 stops17h 47m

$860

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 2/15

6:35 am-7:50 am

2 stops18h 15m

Frankfurt am Main

Fri 2/27

6:55 am-8:09 pm

2 stops20h 14m

$860

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 2/18

7:10 am-8:40 am

1 stop18h 30m

Frankfurt am Main

Fri 2/27

6:55 am-5:42 pm

2 stops17h 47m

$860

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 2/16

7:10 am-8:40 am

1 stop18h 30m

Frankfurt am Main

Wed 2/25

6:55 am-4:45 pm

2 stops16h 50m

$860

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 2/16

10:12 am-7:50 am

1 stop14h 38m

Frankfurt am Main

Thu 2/26

2:15 pm-11:36 pm

2 stops16h 21m

$860

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 December 12, 2025.

The best time to book flights from St. Louis to Frankfurt am Main is 62 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, October is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $650). Flying from St. Louis to Frankfurt am Main in April is currently the most expensive (average of $883). 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 December 18, 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 morning tend to be the most expensive. A flight in the evening could potentially save you up to 54% on airfare.

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 December 18, 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.
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,093 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,055 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,534 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Lufthansa
6.8
Okay
7,635 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
British Airways
6.7
Okay
7,585 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 15h 43m. Scandinavian Airlines provides one of the quickest options available for as low as $736. 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 $488. Additional round-trip tickets that might be worth considering are offered by Delta and British Airways, with the lowest prices starting at $610 and $693, respectively. You may be able to fly from St. Louis to Frankfurt am Main for 59% 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?

    $396 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on United Airlines and British Airways, with prices starting from $489 and $620, respectively.

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

    Looking at all options, your cheapest flight can be booked for $438. While the most popular route (Lambert-St Louis - Frankfurt am Main) can be booked for $736 on average, our data indicates $1,664 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, October is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main (average of $650). Flying from St. Louis to Frankfurt am Main in April is currently the most expensive (average of $883). 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.

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Alternative routes for St. Louis to Frankfurt am Main

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$488Average$1,024FlexibilityNo cancel feeOn-time71%
DeltaCheapest$610Average$1,099FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$693Average$969FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$776Average$1,135FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$821Average$1,339FlexibilityNo cancel feeOn-time76%
KLMCheapest$841Average$1,115FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,319FlexibilityNo cancel feeOn-time67%

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