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Frankfurt

$288+ Cheap flights from St. Louis (STL) to Frankfurt (FRA)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
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

Cheapest flights from St. Louis to Frankfurt
Explore the most affordable flight options available from St. Louis to Frankfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/286:00 amSTL - FRA
1 stop22h 15mMultiple Airlines
Fri 1/91:05 pmFRA - STL
2 stops40h 28mMultiple Airlines
Deal found 12/21$1,539
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/286:00 amSTL - FRA
1 stop22h 15mMultiple Airlines
Thu 1/810:45 amFRA - STL
2 stops32h 27mMultiple Airlines
Deal found 12/21$1,621
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/286:00 amSTL - FRA
1 stop22h 15mMultiple Airlines
Sat 1/101:05 pmFRA - STL
2 stops26h 35mMultiple Airlines
Deal found 12/21$1,682
This Expedia deal was found by Cheapflights users on 12/21. 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 12/299:08 amSTL - FRA
2 stops17h 57mMultiple Airlines
Fri 1/910:45 amFRA - STL
2 stops29h 18mMultiple Airlines
Deal found 12/21$1,718
This Mytrip deal was found by Cheapflights users on 12/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:53 pmSTL - FRA
2 stops19h 27mMultiple Airlines
Tue 1/61:40 pmFRA - STL
3 stops32h 49mMultiple Airlines
Deal found 12/22$1,722
This SmartFares deal was found by Cheapflights users on 12/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:50 pmSTL - FRA
Nonstop8h 40mLufthansa
Thu 1/810:15 pmFRA - STL
2 stops31h 43mLufthansa
Deal found 12/22$1,749
This Cheapflightsfares deal was found by Cheapflights users on 12/22. 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.
Tue 12/306:35 pmSTL - FRA
2 stops17h 30mLufthansa
Tue 1/612:15 pmFRA - STL
2 stops18h 44mLufthansa
Deal found 12/22$1,766

Find flight deals from St. Louis to Frankfurt

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Frankfurt (FRA). 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 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$736
(KAYAK)

One-way from

$288
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,306

Good round-trip deal

$907 or less

Good one-way deal

$563 or less
Provider with most accurate pricing for Lambert-St Louis-Frankfurt am Main flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Frankfurt am Main flights.
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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
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Frankfurt am Main.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Frankfurt am Main.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Frankfurt 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 23, 2025.
Use the filters below to find and compare flights from St. Louis to Frankfurt am Main Airport that are best for you.

Fly from

St. Louis

Fly to

Frankfurt

Route

Depart

Return

Price

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

$808

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

9:00 am-7:13 pm

2 stops16h 13m

$810

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/29

11:14 am-10:15 am

2 stops16h 01m

Frankfurt am Main

Wed 6/10

10:45 am-7:30 pm

1 stop15h 45m

$842

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 3/20

4:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Sat 3/28

1:30 pm-11:51 pm

1 stop16h 21m

$904

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 3/20

7:00 pm-7:25 am

2 stops30h 25m

Frankfurt am Main

Sat 3/28

1:30 pm-11:51 pm

1 stop16h 21m

$963

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 2/20

9:55 am-6:35 am

1 stop13h 40m

Frankfurt am Main

Tue 2/24

5:10 pm-7:14 pm

2 stops33h 04m

$1,053

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/1

10:12 am-8:55 am

1 stop15h 43m

Frankfurt am Main

Fri 4/10

11:45 am-11:15 pm

2 stops18h 30m

$1,067

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/1

10:12 am-8:55 am

1 stop15h 43m

Frankfurt am Main

Fri 4/10

10:40 am-5:53 pm

1 stop14h 13m

$1,069

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 3/28

5:59 pm-8:50 am

1 stop32h 51m

Frankfurt am Main

Tue 4/7

10:40 am-5:53 pm

1 stop14h 13m

$1,077

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Thu 4/30

1:30 pm-2:35 pm

2 stops18h 05m

Frankfurt am Main

Thu 5/7

7:00 am-11:38 pm

3 stops23h 38m

$1,113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 18 results
1
2

Compare providers for flights from St. Louis to Frankfurt

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Frankfurt in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Thrive TravelPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Frankfurt am Main Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Frankfurt am Main Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Frankfurt am Main Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Frankfurt am Main Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Frankfurt am Main Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Frankfurt. Price data was last updated on December 19, 2025.

The price you pay for your flight from St. Louis to Frankfurt am Main Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main Airport (average of $650). Flying from St. Louis to Frankfurt am Main Airport in April is currently the most expensive (average of $899). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

One of the essential ways to save on airfare from St. Louis to Frankfurt am Main Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 45% on airfare.

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

The best insider tips for St. Louis to Frankfurt am Main Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Frankfurt am Main Airport trip
Airports
STL

Security at STL is straightforward, averaging 5-10 minutes off-peak. Check real-time wait times online before heading to the airport.

Read more about STLBy Taryn White
FRA

For a quick city transfer, take the train from FRA. S8 or S9 trains run every 15 minutes to Frankfurt Hauptbahnhof in about 15 minutes.

Read more about FRABy Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on FRA

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Reviews of airlines servicing Frankfurt

Get insights into the airlines that provide service to Frankfurt. 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. Reviews last updated December 23, 2025.
Read through reviews of airlines operating flights from St. Louis to Frankfurt am Main Airport, such as United Airlines, American Airlines, and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,106 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,106 reviews
United Airlines
7.4
Good
9,106 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,050 reviews
United Airlines
7.4
Good
9,106 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Air Canada
7.1
Good
10,551 reviews
United Airlines
7.4
Good
9,106 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Lufthansa
6.8
Okay
7,649 reviews
United Airlines
7.4
Good
9,106 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
7,606 reviews
United Airlines
7.4
Good
9,106 reviews

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

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

    For a flight from St. Louis to Frankfurt am Main, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Frankfurt am Main per day. 7 airlines have flights to Frankfurt am Main from Lambert-St Louis on a regular basis.

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

    For as low as $808, Lufthansa can have you in Frankfurt am Main Airport from St. Louis in 12h 09m. St. Louis and Frankfurt am Main Airport are separated by a distance of 4577 mi.

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

    American Airlines, at $488, was found to be the cheapest airline from St. Louis to Frankfurt am Main Airport.Alternate airlines to your destination round-trip include Delta and British Airways. American Airlines is 59% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at $396. United Airlines flights start at $489 while deals on British Airways start at $620 one-way.

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

    Looking for the cheapest flight from St. Louis to Frankfurt am Main Airport? While on average our users pay $1,755, our data indicates the cheapest price to be $438. The most popular route (Lambert-St Louis - Frankfurt am Main), is priced around $719.

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

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

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

    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.

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

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

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main Airport (average of $650). Flying from St. Louis to Frankfurt am Main Airport in April is currently the most expensive (average of $899). 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

Traveling to a place near Frankfurt am Main Airport?

Book flights to Frankfurt am Main Airport if you plan to visit one of these locations
Koblenz
Wurzburg
Baden-Baden
Speyer
Wiesbaden
Trier
Boppard
Mainz

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Alternative routes for St. Louis to Frankfurt

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Frankfurt flights
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Columbia to Frankfurt flights

Top 7 airlines flying from St. Louis to Frankfurt

Discover the top 7 airlines that operate flights from St. Louis to Frankfurt. 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 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$488Average$1,024FlexibilityNo cancel feeOn-time71%
DeltaCheapest$610Average$1,099FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$693Average$994FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$776Average$1,135FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$821Average$1,335FlexibilityNo cancel feeOn-time76%
KLMCheapest$841Average$1,115FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,319FlexibilityNo cancel feeOn-time67%

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