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Cheap flights from Frankfurt am Main Airport to St. Louis from $425

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 Airport to St. Louis departing on 2/27. 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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Find the cheapest flights from Frankfurt am Main Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
7:25 am - 4:23 pm
FRA
-
STL
15h 58m
2 stops
Lufthansa Logo
5:41 pm - 11:50 am
STL
-
FRA
12h 09m
1 stop
$674Lufthansa
Fri, Mar 6 - Sun, Mar 22
Lufthansa Logo
7:25 am - 4:23 pm
FRA
-
STL
15h 58m
2 stops
Lufthansa Logo
5:41 pm - 11:50 am
STL
-
FRA
12h 09m
1 stop
$677Lufthansa
Fri, Mar 6 - Sun, Mar 22
Lufthansa Logo
7:20 am - 4:59 pm
FRA
-
STL
16h 39m
2 stops
Lufthansa Logo
11:28 am - 9:10 am
STL
-
FRA
15h 42m
1 stop
$684Lufthansa
Sun, Mar 8 - Sun, Mar 22
Lufthansa Logo
7:25 am - 4:23 pm
FRA
-
STL
15h 58m
2 stops
Lufthansa Logo
4:50 pm - 7:30 am
STL
-
FRA
8h 40mnonstop
$689Lufthansa
Fri, Mar 6 - Sun, Mar 22
Lufthansa Logo
10:45 am - 1:55 pm
FRA
-
STL
10h 10mnonstop
Lufthansa Logo
11:37 am - 9:10 am
STL
-
FRA
14h 33m
1 stop
$690Lufthansa
Wed, Mar 4 - Wed, Apr 1
Lufthansa Logo
7:25 am - 4:23 pm
FRA
-
STL
15h 58m
2 stops
Lufthansa Logo
4:50 pm - 7:30 am
STL
-
FRA
8h 40mnonstop
$692Lufthansa
Fri, Mar 6 - Sun, Mar 22
Lufthansa Logo
10:15 am - 9:42 pm
FRA
-
STL
18h 27m
2 stops
Lufthansa Logo
4:50 pm - 7:30 am
STL
-
FRA
8h 40mnonstop
$693Lufthansa
Fri, Mar 6 - Sun, Mar 22
Lufthansa Logo
12:55 pm - 8:23 pm
FRA
-
STL
14h 28m
1 stop
Lufthansa Logo
1:10 pm - 9:55 am
STL
-
FRA
13h 45m
1 stop
$696Lufthansa
Wed, Mar 4 - Wed, Apr 15
Multiple Airlines Logo
11:50 am - 8:43 pm
FRA
-
STL
15h 53m
2 stops
Multiple Airlines Logo
5:50 pm - 7:50 am
STL
-
FRA
31h 00m
1 stop
$697Multiple Airlines
Sun, Mar 1 - Fri, Mar 6
Lufthansa Logo
10:45 am - 1:55 pm
FRA
-
STL
10h 10mnonstop
Lufthansa Logo
11:28 am - 9:10 am
STL
-
FRA
15h 42m
1 stop
$698Lufthansa
Sun, Mar 1 - Sun, Mar 15

Lufthansa flights from Frankfurt am Main Airport to St. Louis

Our best Lufthansa deals on Frankfurt am Main Airport to St. Louis flight tickets
Lufthansa
Mar 6
FRA7:25 amFrankfurt am Main
15h 58m
2 stops
STL4:23 pmLambert-St Louis
Mar 22
STL5:41 pmLambert-St Louis
12h 09m
1 stop
FRA11:50 amFrankfurt am Main
$674
Lufthansa
Mar 6
FRA7:25 amFrankfurt am Main
15h 58m
2 stops
STL4:23 pmLambert-St Louis
Mar 22
STL4:50 pmLambert-St Louis
8h 40m
FRA7:30 amFrankfurt am Main
$689
Lufthansa
Mar 13
FRA10:45 amFrankfurt am Main
10h 10m
STL2:55 pmLambert-St Louis
Mar 29
STL11:37 amLambert-St Louis
14h 33m
1 stop
FRA9:10 amFrankfurt am Main
$696

British Airways flights from Frankfurt am Main Airport to St. Louis

Our best British Airways deals on Frankfurt am Main Airport to St. Louis flight tickets
British Airways
Feb 14
FRA10:50 amFrankfurt am Main
14h 17m
1 stop
STL6:07 pmLambert-St Louis
Feb 19
STL6:57 pmLambert-St Louis
15h 13m
2 stops
FRA5:10 pmFrankfurt am Main
$699
British Airways
Feb 8
FRA10:15 amFrankfurt am Main
19h 57m
1 stop
STL11:12 pmLambert-St Louis
Feb 15
STL7:00 amLambert-St Louis
17h 15m
1 stop
FRA7:15 amFrankfurt am Main
$706
British Airways
Mar 1
FRA7:25 amFrankfurt am Main
19h 04m
2 stops
STL7:29 pmLambert-St Louis
Mar 15
STL11:46 amLambert-St Louis
13h 29m
1 stop
FRA7:15 amFrankfurt am Main
$718

momondo Fare Finder

 
Customize your flight search to find flights from Frankfurt am Main Airport 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 February 3, 2026.
Use the filters below to find and compare flights from Frankfurt am Main Airport 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 3/6

7:25 am-4:23 pm

2 stops15h 58m

Lambert-St Louis

Sun 3/22

5:41 pm-11:50 am

1 stop12h 09m

$674

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/6

7:25 am-4:23 pm

2 stops15h 58m

Lambert-St Louis

Sun 3/22

5:41 pm-11:50 am

1 stop12h 09m

$677

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 3/8

7:20 am-4:59 pm

2 stops16h 39m

Lambert-St Louis

Sun 3/22

11:28 am-9:10 am

1 stop15h 42m

$684

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/6

7:25 am-4:23 pm

2 stops15h 58m

Lambert-St Louis

Sun 3/22

4:50 pm-7:30 am

Nonstop8h 40m

$689

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 3/4

10:45 am-1:55 pm

Nonstop10h 10m

Lambert-St Louis

Wed 4/1

11:37 am-9:10 am

1 stop14h 33m

$690

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/6

7:25 am-4:23 pm

2 stops15h 58m

Lambert-St Louis

Sun 3/22

4:50 pm-7:30 am

Nonstop8h 40m

$692

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/6

10:15 am-9:42 pm

2 stops18h 27m

Lambert-St Louis

Sun 3/22

4:50 pm-7:30 am

Nonstop8h 40m

$693

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 3/4

12:55 pm-8:23 pm

1 stop14h 28m

Lambert-St Louis

Wed 4/15

1:10 pm-9:55 am

1 stop13h 45m

$696

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 3/1

11:50 am-8:43 pm

2 stops15h 53m

Lambert-St Louis

Fri 3/6

5:50 pm-7:50 am

1 stop31h 00m

$697

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 3/1

10:45 am-1:55 pm

Nonstop10h 10m

Lambert-St Louis

Sun 3/15

11:28 am-9:10 am

1 stop15h 42m

$698

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 Airport 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 Airport 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 Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $643. The month of November is another great option to travel to St. Louis, with average flight prices from Frankfurt am Main Airport 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 Friday because tickets tend to average around $1,012. 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 Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $779 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 Airport 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.

Can stopping save me money on Frankfurt am Main Airport to St. Louis flights?

You could potentially save up to 34% on your flight if you consider stops on a Frankfurt am Main Airport to St. Louis flight.

How have Frankfurt am Main Airport to St. Louis flight prices changed over time?

As of February 2026, prices for Frankfurt am Main Airport to St. Louis flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Frankfurt am Main Airport to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Frankfurt am Main Airport to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Frankfurt am Main Airport to St. Louis (FRA to STL) flight deals and tips

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

Fastest flight time

9h 45m

Direct flights

Mon, Wed, Thu and Sat

Airports in St. Louis

1 airport
The fastest flight from Frankfurt am Main Airport to St. Louis takes 9h 45m
Direct flights go from Frankfurt am Main Airport to St. Louis on Monday, Wednesday, Thursday and Saturday. The only airline offering direct flights is Lufthansa.
There is 1 airport in St. Louis. From Frankfurt am Main Airport there are direct flights to Lambert-St Louis (STL).
Search flight deals

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

    There are 4576.9 mi between Frankfurt am Main and Lambert-St Louis. Flights usually cover this in 9h 45m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Frankfurt am Main Airport 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.

  • What is the most popular plane model from Frankfurt am Main Airport to St. Louis?

  • What is the most popular airline from Frankfurt am Main Airport to St. Louis?

Best airlines flying from Frankfurt am Main Airport to St. Louis

Compare and see reviews for airlines that fly from Frankfurt am Main Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
LufthansaPriceFrom $621Free CancellationRating
6.8
7,759 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
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Frankfurt am Main to St. Louis. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Frankfurt am Main with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Frankfurt am Main.

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

Yes momondo offers price alerts on flights to St. Louis from Frankfurt am Main. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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