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$438+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 Friday or Monday and return on a Monday

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 diciembre 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
vie. 12/267:25 amFRA - STL
2 stops21h 18mLufthansa
vie. 1/911:22 amSTL - FRA
1 stop14h 48mLufthansa
Deal found 12/11$652
This Delta deal was found by Cheapflights users on 12/10. 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.
vie. 12/2610:15 amFRA - STL
2 stops20h 27mDelta
vie. 1/96:35 amSTL - FRA
1 stop18h 15mDelta
Deal found 12/10$692
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/2610:45 amFRA - STL
Nonstop10h 10mUnited Airlines
vie. 1/97:00 amSTL - FRA
1 stop19h 10mUnited Airlines
Deal found 12/10$695

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$652
(Kiwi.com)

One-way from

$438
(Finnair)

Popular in

December

Cheapest in

April

Average price

$965
Provider with most accurate pricing for Frankfurt am Main-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Frankfurt am Main-Lambert-St Louis flights.
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From Frankfurt am Main to Lambert-St Louis
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One-way flight from Frankfurt am Main to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 diciembre 12, 2025.
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

jue. 1/29

10:15 am-10:59 pm

2 stops19h 44m

Lambert-St Louis

lun. 2/2

5:04 pm-9:55 pm

2 stops21h 51m

$689

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

lun. 2/2

6:55 am-11:25 pm

2 stops23h 30m

Lambert-St Louis

dom. 2/15

6:35 am-11:15 am

2 stops21h 40m

$690

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

dom. 1/25

6:55 am-8:43 pm

2 stops20h 48m

Lambert-St Louis

dom. 2/1

6:57 pm-4:45 pm

2 stops14h 48m

$690

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

mié. 5/27

6:35 am-3:21 pm

2 stops15h 46m

Lambert-St Louis

mié. 8/5

6:15 am-11:15 am

1 stop22h 00m

$694

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

sáb. 5/2

6:35 am-9:04 pm

2 stops21h 29m

Lambert-St Louis

jue. 5/14

7:45 am-2:05 pm

1 stop23h 20m

$694

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

lun. 5/4

6:35 am-7:25 pm

2 stops19h 50m

Lambert-St Louis

jue. 5/14

7:45 am-2:05 pm

1 stop23h 20m

$694

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

vie. 12/26

10:45 am-1:55 pm

Nonstop10h 10m

Lambert-St Louis

vie. 1/9

3:50 pm-7:30 am

Nonstop8h 40m

$696

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

dom. 1/25

10:45 am-1:55 pm

Nonstop10h 10m

Lambert-St Louis

dom. 2/1

8:05 am-7:40 am

2 stops16h 35m

$697

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

mar. 3/31

12:15 pm-10:35 am

2 stops29h 20m

Lambert-St Louis

jue. 4/9

7:45 am-2:05 pm

1 stop23h 20m

$699

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

jue. 5/28

11:30 am-11:23 pm

2 stops18h 53m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 17 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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 Frankfurt am Main Airport-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Frankfurt am Main Airport-St. Louis flight deals on Cheapflights vs. eDreams >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 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 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 December 5, 2025.

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, March is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $556). Flying from Frankfurt am Main Airport to St. Louis in December is currently the most expensive (average of $657). 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 diciembre 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 39% on flights from Frankfurt am Main Airport to St. Louis by exploring options for tickets in the afternoon.

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
Airports
FRA

Download the official FRA app to stay updated on strikes and key info, ensuring a smooth departure experience.

Read more about FRABy Blane Bachelor
STL

Use the MetroLink light rail for a convenient and economical way to reach downtown St. Louis from STL.

Read more about STLBy Taryn White
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 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 diciembre 12, 2025.
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
9,095 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Lufthansa
6.8
Okay
7,626 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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 15h 46m. 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 22% 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, March is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $556). Flying from Frankfurt am Main Airport to St. Louis in December is currently the most expensive (average of $657). 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
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
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Alton
Farmington
Festus

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Alternative routes for Frankfurt to St. Louis

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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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$592Average$790FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$618Average$949FlexibilityNo cancel feeOn-time76%

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