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St. Louis

$395+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheapflights Tip: The best prices from Frankfurt am Main to Lambert-St Louis are usually found in February or October, booked 56 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 July 25, 2026.

This Flysmarter deal was found by Cheapflights users on 7/21. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:55 am
FRA
-
STL
1 stop19h 47m
Multiple Airlines
Tue 10/277:10 pm
STL
-
FRA
2 stops18h 30m
Multiple Airlines
Deal found 7/21$705
This Expedia deal was found by Cheapflights users on 7/25. 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 9/1610:55 am
FRA
-
STL
1 stop19h 48m
Iberia
Wed 9/2310:14 am
STL
-
FRA
1 stop15h 31m
Iberia
Deal found 7/25$708
This Flysmarter deal was found by Cheapflights users on 7/22. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:55 am
FRA
-
STL
1 stop19h 47m
Multiple Airlines
Sun 9/139:40 pm
STL
-
FRA
1 stop17h 40m
Multiple Airlines
Deal found 7/22$715
This Flysmarter deal was found by Cheapflights users on 7/21. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:55 am
FRA
-
STL
1 stop19h 47m
Iberia
Tue 10/2710:12 am
STL
-
FRA
1 stop15h 03m
Iberia
Deal found 7/21$716
This Flysmarter deal was found by Cheapflights users on 7/22. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:30 am
FRA
-
STL
2 stops19h 57m
Multiple Airlines
Wed 8/198:07 pm
STL
-
FRA
2 stops19h 38m
Multiple Airlines
Deal found 7/22$717
This Expedia deal was found by Cheapflights users on 7/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:55 am
FRA
-
STL
1 stop16h 31m
Iberia
Sun 9/610:16 am
STL
-
FRA
1 stop15h 29m
Iberia
Deal found 7/24$720
This Flysmarter deal was found by Cheapflights users on 7/25. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:30 am
FRA
-
STL
2 stops19h 57m
Iberia
Sun 9/2012:46 pm
STL
-
FRA
1 stop12h 59m
Iberia
Deal found 7/25$721
This Flysmarter deal was found by Cheapflights users on 7/21. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:10 pm
FRA
-
STL
2 stops18h 32m
Multiple Airlines
Sat 8/298:06 pm
STL
-
FRA
2 stops19h 29m
Multiple Airlines
Deal found 7/21$722
This Flysmarter deal was found by Cheapflights users on 7/23. 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.
Sun 9/610:55 am
FRA
-
STL
1 stop18h 46m
Iberia
Mon 9/2112:46 pm
STL
-
FRA
1 stop12h 59m
Iberia
Deal found 7/23$725

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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$705
(Flysmarter)

One-way from

$395
(Expedia)

Popular in

September

Cheapest in

February

Average price

$872

Good one-way deal

$866 or less
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. 10% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Frankfurt am Main to Lambert-St Louis.
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 July 25, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 8/30

10:55 am-7:51 pm

1 stop15h 56m

Lambert-St Louis

Sun 9/13

12:46 pm-8:45 am

1 stop12h 59m

$733

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 8/13

6:30 am-11:34 pm

2 stops24h 04m

Lambert-St Louis

Wed 8/26

10:16 am-8:45 am

1 stop15h 29m

$737

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 8/24

7:00 am-5:53 pm

2 stops17h 53m

Lambert-St Louis

Sun 9/6

10:33 am-11:25 am

2 stops17h 52m

$773

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 9/15

11:45 am-11:16 pm

2 stops18h 31m

Lambert-St Louis

Sun 9/27

5:59 pm-5:45 pm

2 stops16h 46m

$774

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 8/30

7:00 am-11:58 pm

2 stops23h 58m

Lambert-St Louis

Sun 9/13

3:52 pm-2:20 pm

2 stops15h 28m

$775

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 10/5

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Sun 10/11

11:35 am-6:30 am

1 stop11h 55m

$781
Quickest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 8/30

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Sun 9/13

3:30 pm-7:25 am

Nonstop8h 55m

$782

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 8/13

9:20 am-6:59 pm

1 stop16h 39m

Lambert-St Louis

Wed 8/26

12:45 pm-8:45 am

1 stop13h 00m

$784

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 10/4

8:20 am-7:21 pm

2 stops18h 01m

Lambert-St Louis

Sat 10/10

3:11 pm-12:10 pm

2 stops13h 59m

$785

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 8/13

11:10 am-11:38 pm

1 stop19h 28m

Lambert-St Louis

Mon 8/31

3:32 pm-9:55 am

1 stop11h 23m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*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?

The best time to book flights from Frankfurt am Main Airport to St. Louis is 55 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, February is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $707). Flying from Frankfurt am Main Airport to St. Louis in September is currently the most expensive (average of $1,267). 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 July 25, 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?

Airfare is below average for this route at the moment.

Frankfurt am Main Airport to St. Louis flights typically cost between $826 and $1,034 in October.
The cheapest round-trip price found within the last 5 days was $705 on Multiple Airlines (Oct 6-Oct 27).

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 July 25, 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
10,035 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
10,035 reviews
United Airlines
7.4
Good
10,035 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
Lufthansa
6.8
Okay
8,155 reviews
United Airlines
7.4
Good
10,035 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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 1 inbound flight 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 15h 56m. 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 $655. Another airline that can offer you cheap pricing is United Airlines. Lufthansa is priced at 25% lower than the current average price of a flight leaving 3 months from now.

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

    $349 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on British Airways and Lufthansa, with prices starting from $459 and $659, respectively.

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

    The cheapest flight price from Frankfurt am Main Airport to St. Louis is $787. On average you can expect to pay $871. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $717.

  • 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, February is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $707). Flying from Frankfurt am Main Airport to St. Louis in September is currently the most expensive (average of $1,267). 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
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington

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Alternative routes for Frankfurt to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$655Average$884FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$665Average$920FlexibilityNo cancel feeOn-time69%

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