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Frankfurt

$371+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
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 69 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap 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 September 19, 2025.

Round-trip from

$660
(Expedia)

One-way from

$371
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,161

Good round-trip deal

$834 or less

Good one-way deal

$525 or less
From Lambert-St Louis to Frankfurt am Main
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One-way flight from Lambert-St Louis to Frankfurt am Main
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Highest demand for flights based on searches. 18% potential increase in price ($263 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Frankfurt am Main.
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Price to beat on a one-way flight from Lambert-St Louis to Frankfurt am Main.
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Find 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 September 19, 2025.

This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia 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 11/273:15 pmFRA - STL
2 stops37h 43mScandinavian Airlines
Deal found 9/16$660
This Expedia deal was found by Cheapflights users on 9/17. 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.
Thu 11/131:55 pmSTL - FRA
2 stops17h 35mScandinavian Airlines
Thu 11/273:15 pmFRA - STL
2 stops37h 43mScandinavian Airlines
Deal found 9/17$661
This Travelocity deal was found by Cheapflights users on 9/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:59 pmSTL - FRA
2 stops16h 31mMultiple Airlines
Wed 11/1210:10 pmFRA - STL
2 stops29h 54mMultiple Airlines
Deal found 9/18$685
This Travelocity deal was found by Cheapflights users on 9/17. 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.
Fri 10/243:59 pmSTL - FRA
2 stops34h 21mMultiple Airlines
Mon 10/277:55 amFRA - STL
2 stops21h 46mMultiple Airlines
Deal found 9/17$736
This Expedia deal was found by Cheapflights users on 9/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:44 amSTL - FRA
2 stops19h 46mScandinavian Airlines
Wed 11/193:15 pmFRA - STL
2 stops36h 49mScandinavian Airlines
Deal found 9/18$752
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:59 pmSTL - FRA
2 stops15h 41mScandinavian Airlines
Wed 10/153:20 pmFRA - STL
2 stops39h 21mScandinavian Airlines
Deal found 9/15$800
This lastminute.com deal was found by Cheapflights users on 9/18. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:30 amSTL - FRA
2 stops17h 55mAir Canada
Fri 11/219:45 amFRA - STL
2 stops35h 40mAir Canada
Deal found 9/18$801
This Expedia deal was found by Cheapflights users on 9/17. 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.
Thu 12/41:55 pmSTL - FRA
2 stops17h 35mMultiple Airlines
Mon 12/87:55 amFRA - STL
2 stops20h 08mMultiple Airlines
Deal found 9/17$803
This Orbitz deal was found by Cheapflights users on 9/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:59 pmSTL - FRA
2 stops15h 41mMultiple Airlines
Wed 10/227:20 amFRA - STL
2 stops21h 44mMultiple Airlines
Deal found 9/18$805
This CrystalTravel deal was found by Cheapflights users on 9/17. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:50 pmSTL - FRA
Nonstop8h 40mLufthansa
Wed 12/1710:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 9/17$809
This CrystalTravel deal was found by Cheapflights users on 9/17. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:00 pmSTL - FRA
1 stop11h 25mLufthansa
Wed 12/1710:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 9/17$813
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/141:30 pmSTL - FRA
2 stops17h 35mMultiple Airlines
Tue 10/219:30 pmFRA - STL
2 stops24h 48mMultiple Airlines
Deal found 9/16$815

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 September 19, 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

Wed 11/19

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Wed 11/26

9:45 am-10:51 am

2 stops32h 06m

$840

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/19

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Thu 11/27

5:10 pm-12:28 pm

2 stops26h 18m

$846

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 12/5

6:42 pm-2:00 pm

1 stop12h 18m

Frankfurt am Main

Fri 12/12

10:50 am-5:03 pm

1 stop13h 13m

$848

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 11/17

11:20 am-11:40 am

1 stop17h 20m

Frankfurt am Main

Thu 11/27

5:10 pm-12:28 pm

2 stops26h 18m

$851

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Thu 11/13

6:43 pm-9:55 am

1 stop32h 12m

Frankfurt am Main

Thu 11/27

5:10 pm-3:29 pm

1 stop29h 19m

$852

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 11/18

5:24 pm-6:35 am

1 stop30h 11m

Frankfurt am Main

Thu 11/27

5:10 pm-3:29 pm

1 stop29h 19m

$852

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 11/15

5:24 pm-6:35 am

1 stop30h 11m

Frankfurt am Main

Thu 11/27

5:10 pm-3:29 pm

1 stop29h 19m

$852

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 11/15

4:05 pm-7:55 am

1 stop32h 50m

Frankfurt am Main

Thu 11/27

1:40 pm-12:28 pm

2 stops29h 48m

$853

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 11/16

4:05 pm-11:10 am

1 stop12h 05m

Frankfurt am Main

Thu 11/27

1:40 pm-3:46 pm

2 stops33h 06m

$853

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 11/29

4:05 pm-6:40 am

1 stop31h 35m

Frankfurt am Main

Wed 12/10

5:10 pm-12:15 pm

2 stops26h 05m

$853

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 22 results
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The best insider tips for St. Louis to Frankfurt am Main Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

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 September 12, 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 69 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, January is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main Airport (average of $729). Flying from St. Louis to Frankfurt am Main Airport 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 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 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 Airport?

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 September 19, 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
8,926 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Lufthansa
6.8
Okay
7,415 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
British Airways
6.7
Okay
7,373 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 $840, United Airlines can have you in Frankfurt am Main Airport from St. Louis in 8h 40m. St. Louis and Frankfurt am Main Airport are separated by 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 Airport round-trip?

    Delta, at $610, was found to be the cheapest airline from St. Louis to Frankfurt am Main Airport.Alternate airlines to your destination round-trip include American Airlines and British Airways. Delta is 48% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $2,170, our data indicates the cheapest price to be $466. The most popular route (Lambert-St Louis - Frankfurt am Main), is priced around $660.

  • 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, January is the cheapest month in which you can book a flight from St. Louis to Frankfurt am Main Airport (average of $729). Flying from St. Louis to Frankfurt am Main Airport 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

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
Baden-Baden
Wurzburg
Wiesbaden
Speyer
Trier
Boppard
Mainz

Browse thousands of different options on Cheapflights for your next trip

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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
Springfield to Frankfurt flights
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 September 19, 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%
United AirlinesCheapest$787Average$1,131FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$799Average$1,299FlexibilityNo cancel feeOn-time76%
KLMCheapest$841Average$1,091FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,301FlexibilityNo cancel feeOn-time67%

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