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$595+ Cheap flights from Frankfurt (FRA) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — STL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Frankfurt am Main to Lambert-St Louis are usually found in November or April, booked 47 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap 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 junio 12, 2025.

Round-trip from

$600
(British Airways)

Popular in

December

Cheapest in

November

Average price

$721

Good round-trip deal

$954 or less

Good one-way deal

$651 or less
From Frankfurt am Main to Lambert-St Louis
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Highest demand for flights based on searches. 3% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Frankfurt am Main to Lambert-St Louis.
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Price to beat on a one-way flight from Frankfurt am Main to Lambert-St Louis.
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Find 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 junio 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/219:55 amFRA - STL
1 stop17h 53mUnited Airlines
sáb. 7/195:00 amSTL - FRA
2 stops24h 25mUnited Airlines
Deal found 6/11$595
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3010:55 amFRA - STL
1 stop14h 35mBritish Airways
sáb. 9/202:01 pmSTL - FRA
2 stops16h 54mBritish Airways
Deal found 6/11$600
This Flighttix deal was found by Cheapflights users on 6/10. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1410:55 amFRA - STL
1 stop29h 07mMultiple Airlines
sáb. 8/235:22 amSTL - FRA
1 stop18h 58mMultiple Airlines
Deal found 6/10$611
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/149:20 amFRA - STL
1 stop21h 35mAmerican Airlines
jue. 8/287:01 amSTL - FRA
1 stop18h 44mAmerican Airlines
Deal found 6/10$621
This Flysmarter deal was found by Cheapflights users on 6/11. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/219:55 amFRA - STL
1 stop17h 53mAir Canada
vie. 7/189:15 amSTL - FRA
1 stop14h 15mAir Canada
Deal found 6/11$627
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/2110:40 amFRA - STL
Nonstop9h 50mLufthansa
vie. 10/312:25 pmSTL - FRA
1 stop11h 05mLufthansa
Deal found 6/11$636
This Delta deal was found by Cheapflights users on 6/10. 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.
dom. 9/217:00 amFRA - STL
2 stops16h 00mDelta
vie. 10/37:05 pmSTL - FRA
2 stops15h 40mDelta
Deal found 6/10$637
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/2611:00 amFRA - STL
1 stop16h 25mVirgin Atlantic
sáb. 8/210:30 amSTL - FRA
1 stop16h 20mVirgin Atlantic
Deal found 6/11$790
This flugladen.de deal was found by Cheapflights users on 6/11. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/411:00 amFRA - STL
1 stop13h 10mAir France
vie. 7/1810:30 amSTL - FRA
2 stops15h 30mAir France
Deal found 6/11$817
This Billigflug 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/1210:55 amFRA - STL
2 stops43h 59mAer Lingus
dom. 6/156:20 amSTL - FRA
2 stops30h 35mAer Lingus
Deal found 6/12$965
This KLM deal was found by Cheapflights users on 6/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/157:00 amFRA - STL
2 stops14h 37mKLM
vie. 7/182:15 pmSTL - FRA
1 stop12h 35mKLM
Deal found 6/11$1,000
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/227:00 amFRA - STL
3 stops23h 39mScandinavian Airlines
jue. 10/21:30 pmSTL - FRA
2 stops23h 15mScandinavian Airlines
Deal found 6/10$1,004

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 junio 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

sáb. 8/30

10:55 am-6:30 pm

1 stop14h 35m

Lambert-St Louis

sáb. 9/20

2:01 pm-1:55 pm

2 stops16h 54m

$600

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

jue. 7/24

6:40 am-10:45 pm

2 stops23h 05m

Lambert-St Louis

mar. 8/5

1:20 pm-11:45 am

2 stops15h 25m

$602

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

sáb. 8/30

9:55 am-7:45 pm

2 stops16h 50m

Lambert-St Louis

sáb. 9/20

1:30 pm-10:05 am

2 stops13h 35m

$607

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

jue. 8/14

9:20 am-11:55 pm

1 stop21h 35m

Lambert-St Louis

jue. 8/28

7:01 am-8:45 am

1 stop18h 44m

$621

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

dom. 9/21

10:40 am-1:30 pm

Nonstop9h 50m

Lambert-St Louis

vie. 10/3

12:25 pm-6:30 am

1 stop11h 05m

$636

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

dom. 9/21

7:00 am-4:00 pm

2 stops16h 00m

Lambert-St Louis

vie. 10/3

7:05 pm-5:45 pm

2 stops15h 40m

$637

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

dom. 6/22

9:55 am-12:36 pm

2 stops33h 41m

Lambert-St Louis

vie. 7/18

9:15 am-6:30 am

1 stop14h 15m

$651

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

sáb. 7/26

11:00 am-8:25 pm

1 stop16h 25m

Lambert-St Louis

sáb. 8/2

10:30 am-9:50 am

1 stop16h 20m

$790

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

vie. 7/4

11:00 am-5:10 pm

1 stop13h 10m

Lambert-St Louis

vie. 7/18

10:30 am-9:00 am

2 stops15h 30m

$817

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

lun. 9/22

7:00 am-11:39 pm

3 stops23h 39m

Lambert-St Louis

jue. 10/2

1:30 pm-7:45 pm

2 stops23h 15m

$1,004

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 17 results
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The best insider tips for Frankfurt am Main Airport to St. Louis 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 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

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 June 9, 2025.

The best time to book flights from Frankfurt am Main Airport to St. Louis is 47 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, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $311). Flying from Frankfurt am Main Airport to St. Louis in March is currently the most expensive (average of $356). 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 junio 12, 2025.

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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 junio 12, 2025.
To help decide which airline to fly from Frankfurt am Main to St. Louis, see what other customers have to say about Delta, Air New Zealand and KLM. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air New Zealand
8.0
Very good
483 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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. 3 airlines have flights to Lambert-St Louis from Frankfurt am Main on a regular basis.

  • 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 $600. Other airlines that can offer you cheap pricing are United Airlines, from $602, and American Airlines, from $621. British Airways is priced at 18% 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?

    $669 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on WestJet and Aer Lingus, with prices starting from $799 and $842, 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 $624. On average you can expect to pay $928. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $592.

  • 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, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $311). Flying from Frankfurt am Main Airport to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
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 3 airlines flying from Frankfurt to St. Louis

Discover the top 3 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$566Average$629FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$579Average$821FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$592Average$785FlexibilityNo cancel feeOn-time69%

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