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St. Louis

$441+ Cheap flights from Frankfurt (FRA) to St. Louis (STL)

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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheapflights Tip: The best prices from Frankfurt am Main to Lambert-St Louis are usually found in April or November, booked 49 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from Frankfurt to St. Louis

Cheapest flights from Frankfurt to St. Louis
Explore the most affordable flight options available from Frankfurt to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Billigflug deal was found by Cheapflights users on 1/24. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/610:15 am
FRA
-
STL
1 stop19h 43m
Multiple Airlines
Sun 3/2211:46 am
STL
-
FRA
1 stop13h 29m
Multiple Airlines
Deal found 1/24$624
This Billigflug deal was found by Cheapflights users on 1/25. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/110:15 am
FRA
-
STL
1 stop19h 57m
Multiple Airlines
Sat 2/149:35 am
STL
-
FRA
1 stop14h 40m
Multiple Airlines
Deal found 1/25$627
This Flysmarter deal was found by Cheapflights users on 1/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:15 am
FRA
-
STL
1 stop15h 14m
British Airways
Thu 3/196:50 pm
STL
-
FRA
2 stops16h 20m
British Airways
Deal found 1/26$632
This British Airways deal was found by Cheapflights users on 1/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2410:15 am
FRA
-
STL
1 stop13h 58m
British Airways
Tue 3/32:06 pm
STL
-
FRA
2 stops17h 04m
British Airways
Deal found 1/25$633
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:55 am
FRA
-
STL
1 stop29h 02m
American Airlines
Mon 5/1811:06 am
STL
-
FRA
2 stops20h 59m
American Airlines
Deal found 1/24$634
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:55 am
FRA
-
STL
2 stops28h 28m
American Airlines
Tue 5/1911:06 am
STL
-
FRA
2 stops19h 44m
American Airlines
Deal found 1/24$635
This Expedia deal was found by Cheapflights users on 1/25. 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 8/2410:40 am
FRA
-
STL
1 stop14h 22m
Air France
Thu 9/32:18 pm
STL
-
FRA
1 stop12h 32m
Air France
Deal found 1/25$636
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:50 am
FRA
-
STL
1 stop32h 53m
American Airlines
Thu 3/266:20 pm
STL
-
FRA
2 stops19h 05m
American Airlines
Deal found 1/25$637
This Finnair deal was found by Cheapflights users on 1/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:20 pm
FRA
-
STL
2 stops31h 22m
Finnair
Sun 3/2211:46 am
STL
-
FRA
1 stop13h 29m
Finnair
Deal found 1/24$638
This British Airways deal was found by Cheapflights users on 1/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:55 am
FRA
-
STL
1 stop29h 22m
British Airways
Wed 9/25:32 pm
STL
-
FRA
2 stops17h 43m
British Airways
Deal found 1/25$639
This Expedia deal was found by Cheapflights users on 1/25. 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 3/410:15 am
FRA
-
STL
1 stop13h 58m
British Airways
Wed 3/251:34 pm
STL
-
FRA
1 stop13h 16m
British Airways
Deal found 1/25$640

Find flight deals from Frankfurt to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Frankfurt (FRA) to St. Louis (STL). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$628
(Billigflug)

One-way from

$441
(Finnair)

Popular in

December

Cheapest in

April

Average price

$810
Provider with most accurate pricing for Frankfurt am Main-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Frankfurt am Main-Lambert-St Louis flights.
Search Deals
From Frankfurt am Main to Lambert-St Louis
Search Deals
One-way flight from Frankfurt am Main to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Frankfurt to St. Louis 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 January 26, 2026.
Use the filters below to find and compare flights from Frankfurt am Main Airport to St. Louis that are best for you.

Fly from

Frankfurt

Fly to

St. Louis

Route

Depart

Return

Price

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 2/24

10:15 am-5:13 pm

1 stop13h 58m

Lambert-St Louis

Tue 3/3

2:06 pm-2:10 pm

2 stops17h 04m

$633

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 3/10

10:15 am-7:29 pm

1 stop15h 14m

Lambert-St Louis

Tue 3/17

2:37 pm-2:10 pm

2 stops17h 33m

$633

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 3/4

10:50 am-12:43 pm

1 stop32h 53m

Lambert-St Louis

Thu 3/26

6:20 pm-7:25 pm

2 stops19h 05m

$637

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 3/4

10:50 am-11:22 pm

2 stops19h 32m

Lambert-St Louis

Sun 3/22

6:57 pm-10:00 pm

2 stops21h 03m

$637

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 3/4

10:15 am-5:13 pm

1 stop13h 58m

Lambert-St Louis

Tue 3/24

2:06 pm-2:10 pm

2 stops18h 04m

$637

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/6

7:20 pm-7:42 pm

2 stops31h 22m

Lambert-St Louis

Sun 3/22

11:46 am-7:15 am

1 stop13h 29m

$642

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 2/24

10:15 am-11:22 pm

1 stop20h 07m

Lambert-St Louis

Tue 3/3

11:46 am-7:15 am

1 stop12h 29m

$642

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/6

10:15 am-10:58 pm

1 stop19h 43m

Lambert-St Louis

Sun 3/22

11:46 am-7:15 am

1 stop13h 29m

$643

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 5/18

11:30 am-11:48 pm

2 stops19h 18m

$441

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 5/18

11:30 am-10:14 pm

2 stops17h 44m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 19 results
1
2

Compare providers for flights from Frankfurt to St. Louis

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 Frankfurt to St. Louis in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 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 Frankfurt am Main Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Frankfurt am Main Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Frankfurt am Main Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Frankfurt am Main Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub 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 Frankfurt am Main Airport-St. Louis 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 Frankfurt to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Frankfurt 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 Frankfurt am Main Airport to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Frankfurt to St. Louis. Price data was last updated on January 23, 2026.

The best time to book flights from Frankfurt am Main Airport to St. Louis is 49 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 Frankfurt am Main Airport to St. Louis?

Currently, January is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $502). Flying from Frankfurt am Main Airport to St. Louis in December is currently the most expensive (average of $674). 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 FRA to STL?

Find hourly flight availability from Frankfurt to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 26, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Frankfurt am Main Airport to St. Louis as you normally would.

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

The best insider tips for Frankfurt am Main Airport to St. Louis 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 Frankfurt am Main Airport to St. Louis trip
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on FRA

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 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 St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 26, 2026.
Read through reviews of airlines operating flights from Frankfurt am Main Airport to St. Louis, such as United Airlines and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,198 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,198 reviews
United Airlines
7.4
Good
9,198 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Lufthansa
6.8
Okay
7,747 reviews
United Airlines
7.4
Good
9,198 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Frankfurt to St. Louis. 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 into for flights to St. Louis from Frankfurt am Main?

    For a flight from Frankfurt am Main to St. Louis, you will be flying into 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 inbound flights from Frankfurt am Main per day. 2 airlines have flights to Lambert-St Louis from Frankfurt am Main on a regular basis.

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

    Departing from Frankfurt am Main Airport to St. Louis will take you 13h 58m. The distance from Frankfurt am Main Airport to St. Louis is about 4577 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Frankfurt am Main Airport to St. Louis round-trip from $592. Another airline that can offer you cheap pricing is Lufthansa. United Airlines is priced at 24% lower than the current average price of a flight leaving 3 months from now.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Frankfurt to St. Louis.

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

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

    Currently, January is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $502). Flying from Frankfurt am Main Airport to St. Louis in December is currently the most expensive (average of $674). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
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Fairview Heights
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Collinsville
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Farmington
Festus

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Top 2 airlines flying from Frankfurt to St. Louis

Discover the top 2 airlines that operate flights from Frankfurt to St. Louis. 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$592Average$797FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$618Average$960FlexibilityNo cancel feeOn-time76%

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