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Cheap flights from Frankfurt am Main to St. Louis from $412

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Frankfurt am Main to St. Louis departing on 11/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Frankfurt am Main to St. Louis

Cheap round-trip flights

Multiple Airlines Logo
10:50 am - 6:46 pmFRA-STL
13h 56m1 stop
Multiple Airlines Logo
4:42 pm - 3:40 pmSTL-FRA
15h 58m2 stops
$585Multiple Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 14
Delta Logo
7:00 am - 5:29 pmFRA-STL
17h 29m2 stops
Delta Logo
11:21 am - 9:00 amSTL-FRA
14h 39m2 stops
$588Delta
Find Deal
Mon, Oct 13 - Mon, Oct 20
Delta Logo
7:00 am - 4:37 pmFRA-STL
16h 37m2 stops
Delta Logo
6:00 am - 8:55 amSTL-FRA
19h 55m1 stop
$592Delta
Find Deal
Wed, Oct 1 - Sat, Oct 11
KLM Logo
9:50 am - 6:02 pmFRA-STL
14h 12m1 stop
KLM Logo
11:44 am - 9:35 amSTL-FRA
14h 51m2 stops
$593KLM
Find Deal
Fri, Oct 31 - Fri, Nov 14
KLM Logo
2:15 pm - 9:15 amFRA-STL
25h 00m2 stops
KLM Logo
4:30 pm - 1:40 pmSTL-FRA
14h 10m2 stops
$594KLM
Find Deal
Fri, Oct 31 - Fri, Nov 14
American Airlines Logo
10:50 am - 9:19 pmFRA-STL
17h 29m2 stops
American Airlines Logo
2:54 pm - 7:25 pmSTL-FRA
21h 31m2 stops
$606American Airlines
Find Deal
Mon, Nov 10 - Thu, Dec 4
American Airlines Logo
11:25 am - 8:23 pmFRA-STL
15h 58m2 stops
American Airlines Logo
2:17 pm - 3:30 pmSTL-FRA
18h 13m2 stops
$613American Airlines
Find Deal
Tue, Nov 11 - Mon, Dec 1
Lufthansa Logo
10:45 am - 2:55 pmFRA-STL
10h 10mnonstop
Lufthansa Logo
3:50 pm - 7:30 amSTL-FRA
8h 40mnonstop
$635Lufthansa
Find Deal
Fri, Oct 31 - Fri, Nov 14
United Airlines Logo
10:45 am - 2:55 pmFRA-STL
10h 10mnonstop
United Airlines Logo
3:14 pm - 9:55 amSTL-FRA
11h 41m1 stop
$641United Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 14
United Airlines Logo
10:45 am - 2:55 pmFRA-STL
10h 10mnonstop
United Airlines Logo
3:50 pm - 7:30 amSTL-FRA
8h 40mnonstop
$644United Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 14

British Airways flights from Frankfurt am Main to St. Louis

Our best British Airways deals on Frankfurt am Main to St. Louis flight tickets
British Airways
Oct 31
FRA10:50 amFrankfurt am Main
13h 56m
1 stop
STL6:46 pmLambert-St Louis
Nov 14
STL4:42 pmLambert-St Louis
22h 18m
2 stops
FRA10:00 pmFrankfurt am Main
$607
Find similar
British Airways
Oct 31
FRA8:50 pmFrankfurt am Main
30h 03m
2 stops
STL8:53 pmLambert-St Louis
Nov 14
STL4:42 pmLambert-St Louis
22h 18m
2 stops
FRA10:00 pmFrankfurt am Main
$615
Find similar
British Airways
Oct 31
FRA10:50 amFrankfurt am Main
13h 56m
1 stop
STL6:46 pmLambert-St Louis
Nov 14
STL5:56 pmLambert-St Louis
31h 54m
1 stop
FRA8:50 amFrankfurt am Main
$619
Find similar

American Airlines flights from Frankfurt am Main to St. Louis

Our best American Airlines deals on Frankfurt am Main to St. Louis flight tickets
American Airlines
Nov 10
FRA10:50 amFrankfurt am Main
17h 29m
2 stops
STL9:19 pmLambert-St Louis
Dec 4
STL2:54 pmLambert-St Louis
21h 31m
2 stops
FRA7:25 pmFrankfurt am Main
$606
Find similar
American Airlines
Nov 11
FRA11:25 amFrankfurt am Main
15h 58m
2 stops
STL8:23 pmLambert-St Louis
Dec 1
STL2:17 pmLambert-St Louis
18h 13m
2 stops
FRA3:30 pmFrankfurt am Main
$613
Find similar
American Airlines
Oct 1
FRA9:20 amFrankfurt am Main
29h 45m
1 stop
STL8:05 amLambert-St Louis
Oct 5
STL12:47 pmLambert-St Louis
11h 33m
1 stop
FRA7:20 amFrankfurt am Main
$620
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Frankfurt am Main 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Frankfurt am Main to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

10:50 am-6:46 pm

1 stop13h 56m

Lambert-St Louis

Fri 11/14

4:42 pm-3:40 pm

2 stops15h 58m

$585

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 10/13

7:00 am-5:29 pm

2 stops17h 29m

Lambert-St Louis

Mon 10/20

11:21 am-9:00 am

2 stops14h 39m

$588

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 10/1

7:00 am-4:37 pm

2 stops16h 37m

Lambert-St Louis

Sat 10/11

6:00 am-8:55 am

1 stop19h 55m

$592

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

9:50 am-6:02 pm

1 stop14h 12m

Lambert-St Louis

Fri 11/14

11:44 am-9:35 am

2 stops14h 51m

$593

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

2:15 pm-9:15 am

2 stops25h 00m

Lambert-St Louis

Fri 11/14

4:30 pm-1:40 pm

2 stops14h 10m

$594

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 11/10

10:50 am-9:19 pm

2 stops17h 29m

Lambert-St Louis

Thu 12/4

2:54 pm-7:25 pm

2 stops21h 31m

$606

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 11/11

11:25 am-8:23 pm

2 stops15h 58m

Lambert-St Louis

Mon 12/1

2:17 pm-3:30 pm

2 stops18h 13m

$613

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

10:45 am-2:55 pm

Nonstop10h 10m

Lambert-St Louis

Fri 11/14

3:50 pm-7:30 am

Nonstop8h 40m

$635

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

10:45 am-2:55 pm

Nonstop10h 10m

Lambert-St Louis

Fri 11/14

3:14 pm-9:55 am

1 stop11h 41m

$641

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

10:45 am-2:55 pm

Nonstop10h 10m

Lambert-St Louis

Fri 11/14

3:50 pm-7:30 am

Nonstop8h 40m

$644

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Frankfurt am Main to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Frankfurt am Main and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, November is the cheapest month to fly from Frankfurt am Main to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $613. The month of April is another great option to travel to St. Louis, with average flight prices from Frankfurt am Main averaging around $622.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $622. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,010. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest Frankfurt am Main to Lambert-St Louis flight route?

Fly from Frankfurt am Main to Lambert-St Louis for the best Frankfurt am Main - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Frankfurt am Main when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $745 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Frankfurt am Main for as low as $629 on momondo.

What cabin class options are available on Frankfurt am Main to Lambert-St Louis flights?

There are 3 cabin classes available to choose from on Frankfurt am Main to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Frankfurt am Main to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Frankfurt am Main to St. Louis

Fastest flight time

9h 50m

Direct flights

Mon, Thu and Sat

Airports in St. Louis

1 airport
The fastest flight from Frankfurt am Main to St. Louis takes 9h 50m
Direct flights go from Frankfurt am Main to St. Louis on Monday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • How far is Frankfurt am Main to Lambert-St Louis by plane?

    Lambert-St Louis is 4579.0 mi away from Frankfurt am Main. Typically, this will take 10h 10m by plane in normal conditions.

  • When did momondo last update prices for flights from Frankfurt am Main to Lambert-St Louis Airport?

    Prices for flights from Frankfurt am Main to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Frankfurt am Main to Lambert-St Louis Airport?

  • How old do you have to be to fly from Frankfurt am Main to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Frankfurt am Main to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Frankfurt am Main to St. Louis

Compare and see reviews for airlines that fly from Frankfurt am Main to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $557Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $589Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Frankfurt am Main to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Frankfurt am Main.

Can I find flights from Frankfurt am Main to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Frankfurt am Main to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Frankfurt am Main to St. Louis?

Once you have performed a search for Frankfurt am Main to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Frankfurt am Main to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Frankfurt am Main are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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