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St. Louis

$434+ 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
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 50 days in advance, depart on a Wednesday or Monday 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 June 12, 2026.

This AirNGo deal was found by Cheapflights users on 6/8. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:20 am
FRA
-
STL
1 stop20h 22m
British Airways
Fri 10/29:35 pm
STL
-
FRA
1 stop17h 10m
British Airways
Deal found 6/8$710
This AirNGo deal was found by Cheapflights users on 6/8. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:20 am
FRA
-
STL
1 stop15h 10m
British Airways
Tue 9/299:35 pm
STL
-
FRA
1 stop15h 10m
British Airways
Deal found 6/8$711
This AirNGo deal was found by Cheapflights users on 6/9. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:55 am
FRA
-
STL
1 stop19h 46m
British Airways
Fri 10/239:35 pm
STL
-
FRA
1 stop30h 15m
British Airways
Deal found 6/9$713
This AirNGo deal was found by Cheapflights users on 6/9. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:20 am
FRA
-
STL
1 stop20h 20m
British Airways
Tue 9/18:07 pm
STL
-
FRA
2 stops19h 28m
British Airways
Deal found 6/9$718
This AirNGo deal was found by Cheapflights users on 6/8. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:55 am
FRA
-
STL
1 stop29h 29m
British Airways
Thu 10/110:14 am
STL
-
FRA
1 stop15h 31m
British Airways
Deal found 6/8$719
This Expedia deal was found by Cheapflights users on 6/8. 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 6/1710:55 am
FRA
-
STL
1 stop28h 55m
British Airways
Wed 6/249:35 pm
STL
-
FRA
1 stop14h 05m
British Airways
Deal found 6/8$720
This AirNGo deal was found by Cheapflights users on 6/8. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:20 am
FRA
-
STL
1 stop20h 35m
British Airways
Fri 9/258:30 am
STL
-
FRA
1 stop17h 15m
British Airways
Deal found 6/8$721
This Flighttix deal was found by Cheapflights users on 6/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2210:55 am
FRA
-
STL
1 stop20h 04m
Multiple Airlines
Sun 7/55:13 pm
STL
-
FRA
1 stop32h 32m
Multiple Airlines
Deal found 6/8$724
This Expedia deal was found by Cheapflights users on 6/12. 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 10/162:15 pm
FRA
-
STL
2 stops16h 24m
KLM
Fri 10/234:13 pm
STL
-
FRA
2 stops14h 22m
KLM
Deal found 6/12$728
This Finnair deal was found by Cheapflights users on 6/8. 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.
Mon 9/147:20 pm
FRA
-
STL
2 stops30h 47m
Multiple Airlines
Fri 10/29:35 pm
STL
-
FRA
1 stop13h 45m
Multiple Airlines
Deal found 6/8$730
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:55 am
FRA
-
STL
2 stops23h 23m
Delta
Mon 11/302:18 pm
STL
-
FRA
2 stops17h 02m
Delta
Deal found 6/12$731
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/229:20 am
FRA
-
STL
1 stop16h 39m
American Airlines
Tue 9/15:11 pm
STL
-
FRA
2 stops19h 34m
American Airlines
Deal found 6/9$732

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 June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$710
(AirNGo)

One-way from

$434
(Thrive Travel)

Popular in

September

Cheapest in

February

Average price

$961

Good round-trip deal

$783 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. 9% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip 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 June 12, 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

Mon 9/14

7:20 pm-7:07 pm

2 stops30h 47m

Lambert-St Louis

Fri 10/2

9:35 pm-6:20 pm

1 stop13h 45m

$730

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 9/8

11:30 am-12:14 am

2 stops19h 44m

Lambert-St Louis

Fri 9/25

9:35 pm-9:20 am

2 stops28h 45m

$732

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 8/28

10:55 am-7:43 pm

1 stop15h 48m

Lambert-St Louis

Fri 11/13

11:51 am-10:30 am

2 stops15h 39m

$733

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 11/20

6:55 am-6:01 pm

2 stops18h 06m

Lambert-St Louis

Sun 12/13

2:18 pm-1:35 pm

2 stops16h 17m

$737

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 10/13

10:40 am-8:08 pm

2 stops16h 28m

Lambert-St Louis

Fri 10/23

9:35 pm-6:20 pm

1 stop13h 45m

$743

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 7/16

9:55 am-6:42 pm

1 stop15h 47m

Lambert-St Louis

Thu 9/17

12:10 pm-6:00 am

1 stop10h 50m

$788

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 7/8

5:35 pm-6:42 pm

1 stop32h 07m

Lambert-St Louis

Wed 7/15

11:25 am-9:10 am

2 stops14h 45m

$800

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 7/16

11:10 am-9:26 pm

2 stops17h 16m

Lambert-St Louis

Thu 9/17

8:00 am-5:30 am

2 stops14h 30m

$801
Quickest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 7/6

1:55 pm-10:45 pm

1 stop15h 50m

Lambert-St Louis

Sun 7/26

3:30 pm-7:25 am

Nonstop8h 55m

$801

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 11/2

10:40 am-8:49 pm

1 stop17h 09m

Lambert-St Louis

Mon 11/30

10:45 am-8:40 am

1 stop14h 55m

$802

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 19 resultsSorted by cheapest first
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 June.
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 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, February is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $705). 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 June 12, 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 June 12, 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
9,812 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,812 reviews
United Airlines
7.4
Good
9,812 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Lufthansa
6.8
Okay
8,056 reviews
United Airlines
7.4
Good
9,812 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 19h 44m. 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 $625. Another airline that can offer you cheap pricing is Lufthansa. United Airlines is priced at 29% 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?

    $430 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 $455 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 $783. On average you can expect to pay $787. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $718.

  • 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 $705). 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
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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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$625Average$917FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$662Average$1,011FlexibilityNo cancel feeOn-time76%

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