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Cheap flights from Frankfurt am Main to St. Louis from $457

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 5/26. 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

Enter your travel dates to find the best prices.
Lufthansa Logo
7:25 am - 10:59 pm
FRA
-
STL
21h 34m
2 stops
Lufthansa Logo
1:10 pm - 9:55 am
STL
-
FRA
13h 45m
1 stop
$660Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
6:35 pm - 6:30 am
STL
-
FRA
28h 55m
1 stop
$662Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
6:35 pm - 6:30 am
STL
-
FRA
28h 55m
1 stop
$666Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
6:35 pm - 6:30 am
STL
-
FRA
28h 55m
1 stop
$667Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
6:35 pm - 6:30 am
STL
-
FRA
28h 55m
1 stop
$668Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
1:10 pm - 9:55 am
STL
-
FRA
13h 45m
1 stop
$670Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
1:10 pm - 9:55 am
STL
-
FRA
13h 45m
1 stop
$675Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$678Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$679Lufthansa
Fri, Mar 13 - Sun, Mar 29
Lufthansa Logo
7:25 am - 6:00 pm
FRA
-
STL
16h 35m
2 stops
Lufthansa Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$682Lufthansa
Fri, Mar 13 - Sun, Mar 29

Delta flights from Frankfurt am Main to St. Louis

Our best Delta deals on Frankfurt am Main to St. Louis flight tickets
Delta
Apr 14
FRA7:00 amFrankfurt am Main
15h 32m
2 stops
STL3:32 pmLambert-St Louis
Apr 21
STL12:23 pmLambert-St Louis
16h 02m
2 stops
FRA11:25 amFrankfurt am Main
$699
Delta
Apr 16
FRA7:00 amFrankfurt am Main
20h 44m
2 stops
STL8:44 pmLambert-St Louis
Apr 23
STL6:48 amLambert-St Louis
20h 02m
1 stop
FRA9:50 amFrankfurt am Main
$703

Lufthansa flights from Frankfurt am Main to St. Louis

Our best Lufthansa deals on Frankfurt am Main to St. Louis flight tickets
Lufthansa
Mar 13
FRA7:25 amFrankfurt am Main
21h 34m
2 stops
STL10:59 pmLambert-St Louis
Mar 29
STL1:10 pmLambert-St Louis
13h 45m
1 stop
FRA9:55 amFrankfurt am Main
$660
Lufthansa
Mar 13
FRA7:25 amFrankfurt am Main
16h 35m
2 stops
STL6:00 pmLambert-St Louis
Mar 29
STL6:35 pmLambert-St Louis
28h 55m
1 stop
FRA6:30 amFrankfurt am Main
$662
Lufthansa
Mar 13
FRA7:25 amFrankfurt am Main
16h 35m
2 stops
STL6:00 pmLambert-St Louis
Mar 29
STL6:35 pmLambert-St Louis
28h 55m
1 stop
FRA6:30 amFrankfurt am Main
$666

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 March 3, 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

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-10:59 pm

2 stops21h 34m

Lambert-St Louis

Sun 3/29

1:10 pm-9:55 am

1 stop13h 45m

$660

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

6:35 pm-6:30 am

1 stop28h 55m

$662

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

6:35 pm-6:30 am

1 stop28h 55m

$666

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

6:35 pm-6:30 am

1 stop28h 55m

$667

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

6:35 pm-6:30 am

1 stop28h 55m

$668

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

1:10 pm-9:55 am

1 stop13h 45m

$670

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

1:10 pm-9:55 am

1 stop13h 45m

$675

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

3:30 pm-7:25 am

Nonstop8h 55m

$678

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

3:30 pm-7:25 am

Nonstop8h 55m

$679

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/13

7:25 am-6:00 pm

2 stops16h 35m

Lambert-St Louis

Sun 3/29

3:30 pm-7:25 am

Nonstop8h 55m

$682

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, April 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 $639. The month of November is another great option to travel to St. Louis, with average flight prices from Frankfurt am Main averaging around $676.

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 Sunday when prices can be found for as low as $597. 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 $1,046. 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 $794 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 $666 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 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

  • 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 $598Free CancellationRating
7.4
9,377 reviews
Search United Airlines flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,820 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
Florissant
Maryland Heights
O'Fallon
St. Peters
Wentzville
Collinsville
Alton
Fenton
Farmington
Edwardsville
Festus
Clayton
Eureka
Litchfield
Glencoe
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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