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Cheap flights from Frankfurt am Main to St. Louis from $504

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 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:00 am - 5:16 pm
FRA
-
STL
13h 16m
1 stop
Multiple Airlines Logo
10:49 am - 8:55 am
STL
-
FRA
15h 06m
1 stop
$766Multiple Airlines
Sun, May 17 - Tue, Jun 2
Air Canada Logo
9:55 am - 8:25 pm
FRA
-
STL
17h 30m
1 stop
Air Canada Logo
1:05 pm - 7:10 am
STL
-
FRA
11h 05m
1 stop
$773Air Canada
Mon, Jun 8 - Mon, Jun 15
Air Canada Logo
10:00 am - 8:25 pm
FRA
-
STL
17h 25m
2 stops
Air Canada Logo
1:05 pm - 7:10 am
STL
-
FRA
11h 05m
1 stop
$783Air Canada
Mon, Jun 8 - Mon, Jun 15
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
3:50 pm - 7:30 am
STL
-
FRA
8h 40mnonstop
$785Lufthansa
Tue, Oct 13 - Sun, Nov 22
Lufthansa Logo
8:50 am - 3:38 pm
FRA
-
STL
13h 48m
1 stop
Lufthansa Logo
1:27 pm - 7:35 am
STL
-
FRA
11h 08m
1 stop
$786Lufthansa
Fri, Oct 16 - Sat, Oct 24
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
8:25 am - 12:10 pm
STL
-
FRA
20h 45m
1 stop
$787Lufthansa
Fri, Oct 9 - Fri, Oct 23
British Airways Logo
10:35 am - 7:30 pm
FRA
-
STL
15h 55m
1 stop
British Airways Logo
8:05 pm - 6:20 pm
STL
-
FRA
16h 15m
2 stops
$788British Airways
Fri, Oct 16 - Sat, Oct 24
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
11:45 am - 9:10 am
STL
-
FRA
14h 25m
1 stop
$789Lufthansa
Mon, Oct 12 - Wed, Dec 2
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
6:45 pm - 6:05 pm
STL
-
FRA
16h 20m
2 stops
$791Lufthansa
Mon, Oct 12 - Thu, Nov 26
Lufthansa Logo
8:45 pm - 3:38 pm
FRA
-
STL
25h 53m
2 stops
Lufthansa Logo
6:45 pm - 6:05 pm
STL
-
FRA
16h 20m
2 stops
$793Lufthansa
Mon, Oct 12 - Thu, Nov 26

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Lufthansa flights from Frankfurt am Main to St. Louis

Our best Lufthansa deals on Frankfurt am Main to St. Louis flight tickets
Lufthansa
Oct 13
FRA10:40 amFrankfurt am Main
9h 45m
STL1:25 pmLambert-St Louis
Nov 22
STL3:50 pmLambert-St Louis
8h 40m
FRA7:30 amFrankfurt am Main
$785
Lufthansa
Oct 16
FRA8:50 amFrankfurt am Main
13h 48m
1 stop
STL3:38 pmLambert-St Louis
Oct 24
STL1:27 pmLambert-St Louis
11h 08m
1 stop
FRA7:35 amFrankfurt am Main
$786
Lufthansa
Oct 9
FRA10:40 amFrankfurt am Main
9h 45m
STL1:25 pmLambert-St Louis
Oct 23
STL8:25 amLambert-St Louis
20h 45m
1 stop
FRA12:10 pmFrankfurt am Main
$787

United Airlines flights from Frankfurt am Main to St. Louis

Our best United Airlines deals on Frankfurt am Main to St. Louis flight tickets
United Airlines
May 10
FRA7:45 amFrankfurt am Main
17h 27m
2 stops
STL6:12 pmLambert-St Louis
May 25
STL7:22 amLambert-St Louis
15h 23m
2 stops
FRA5:45 amFrankfurt am Main
$803
United Airlines
May 17
FRA10:40 amFrankfurt am Main
9h 45m
STL1:25 pmLambert-St Louis
Jun 2
STL6:00 amLambert-St Louis
20h 10m
1 stop
FRA9:10 amFrankfurt am Main
$806
United Airlines
May 17
FRA10:40 amFrankfurt am Main
9h 45m
STL1:25 pmLambert-St Louis
Jun 2
STL6:00 amLambert-St Louis
20h 10m
1 stop
FRA9:10 amFrankfurt am Main
$807

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 April 26, 2026.
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

Cheapest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 5/17

11:00 am-5:16 pm

1 stop13h 16m

Lambert-St Louis

Tue 6/2

10:49 am-8:55 am

1 stop15h 06m

$766

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/8

9:55 am-8:25 pm

1 stop17h 30m

Lambert-St Louis

Mon 6/15

1:05 pm-7:10 am

1 stop11h 05m

$773

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/8

10:00 am-8:25 pm

2 stops17h 25m

Lambert-St Louis

Mon 6/15

1:05 pm-7:10 am

1 stop11h 05m

$783
Quickest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 10/13

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Sun 11/22

3:50 pm-7:30 am

Nonstop8h 40m

$785

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/16

8:50 am-3:38 pm

1 stop13h 48m

Lambert-St Louis

Sat 10/24

1:27 pm-7:35 am

1 stop11h 08m

$786

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/9

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Fri 10/23

8:25 am-12:10 pm

1 stop20h 45m

$787

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/16

10:35 am-7:30 pm

1 stop15h 55m

Lambert-St Louis

Sat 10/24

8:05 pm-6:20 pm

2 stops16h 15m

$788

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 10/12

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Wed 12/2

11:45 am-9:10 am

1 stop14h 25m

$789

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 10/12

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Thu 11/26

6:45 pm-6:05 pm

2 stops16h 20m

$791

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 10/12

8:45 pm-3:38 pm

2 stops25h 53m

Lambert-St Louis

Thu 11/26

6:45 pm-6:05 pm

2 stops16h 20m

$793

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, February 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 $705. The month of November is another great option to travel to St. Louis, with average flight prices from Frankfurt am Main averaging around $726.

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 Wednesday because tickets tend to average around $1,331. 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 from Frankfurt am Main 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 $848 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 $703 on momondo.

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

There are 3 cabin classes available to choose from on Frankfurt am Main to 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 45m

Direct flights

Mon, Tue, Wed, Thu and Sat

Airports in St. Louis

1 airport
The fastest flight from Frankfurt am Main to St. Louis takes 9h 45m
Direct flights go from Frankfurt am Main to St. Louis on Monday, Tuesday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport in St. Louis. From Frankfurt am Main there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Frankfurt am Main to St. Louis

  • 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 9h 45m 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
United AirlinesPriceFrom $606Free CancellationRating
7.4
9,656 reviews
Search United Airlines flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,953 reviews
Search Lufthansa 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
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

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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