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Cheap flights from Frankfurt am Main Airport to St. Louis from $436

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 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 Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
11:00 am - 5:16 pm
FRA
-
STL
13h 16m
1 stop
Virgin Atlantic Logo
7:05 pm - 8:55 am
STL
-
FRA
30h 50m
1 stop
$735Virgin Atlantic
Thu, May 21 - Sun, May 24
British Airways Logo
10:55 am - 8:51 am
FRA
-
STL
28h 56m
1 stop
British Airways Logo
6:13 pm - 7:20 am
STL
-
FRA
30h 07m
1 stop
$754British Airways
Mon, Jun 1 - Tue, Jun 16
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$763Lufthansa
Mon, Jun 1 - Tue, Jun 16
British Airways Logo
10:55 am - 9:37 pm
FRA
-
STL
17h 42m
1 stop
British Airways Logo
9:35 pm - 7:45 pm
STL
-
FRA
15h 10m
1 stop
$768British Airways
Wed, Jun 24 - Tue, Jun 30
Lufthansa Logo
5:20 pm - 11:29 pm
FRA
-
STL
13h 09m
1 stop
Lufthansa Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$769Lufthansa
Mon, Jun 1 - Tue, Jun 16
British Airways Logo
9:20 am - 11:44 pm
FRA
-
STL
21h 24m
1 stop
British Airways Logo
6:13 pm - 7:20 am
STL
-
FRA
30h 07m
1 stop
$776British Airways
Fri, Jun 19 - Wed, Jun 24
Multiple Airlines Logo
9:55 am - 8:25 pm
FRA
-
STL
17h 30m
1 stop
Multiple Airlines Logo
1:13 pm - 2:05 pm
STL
-
FRA
17h 52m
1 stop
$777Multiple Airlines
Fri, Jun 26 - Fri, Jul 3
Air Canada Logo
9:55 am - 8:25 pm
FRA
-
STL
17h 30m
1 stop
Air Canada Logo
5:33 pm - 6:00 am
STL
-
FRA
29h 27m
2 stops
$781Air Canada
Fri, Jun 26 - Fri, Jul 3
Multiple Airlines Logo
10:00 am - 8:09 pm
FRA
-
STL
17h 09m
1 stop
Multiple Airlines Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$787Multiple Airlines
Mon, Jun 1 - Tue, Jun 16
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
1:27 pm - 9:55 am
STL
-
FRA
13h 28m
1 stop
$788Lufthansa
Wed, Oct 7 - Mon, Nov 23

Air Canada flights from Frankfurt am Main Airport to St. Louis

Our best Air Canada deals on Frankfurt am Main Airport to St. Louis flight tickets
Air Canada
Jun 26
FRA9:55 amFrankfurt am Main
17h 30m
1 stop
STL8:25 pmLambert-St Louis
Jul 3
STL5:33 pmLambert-St Louis
29h 27m
2 stops
FRA6:00 amFrankfurt am Main
$781
Air Canada
Jun 24
FRA9:55 amFrankfurt am Main
17h 30m
1 stop
STL8:25 pmLambert-St Louis
Jun 30
STL1:13 pmLambert-St Louis
14h 47m
2 stops
FRA11:00 amFrankfurt am Main
$794
Air Canada
Jun 1
FRA10:00 amFrankfurt am Main
17h 09m
1 stop
STL8:09 pmLambert-St Louis
Jun 16
STL1:05 pmLambert-St Louis
11h 05m
1 stop
FRA7:10 amFrankfurt am Main
$796

Delta flights from Frankfurt am Main Airport to St. Louis

Our best Delta deals on Frankfurt am Main Airport to St. Louis flight tickets
Delta
May 21
FRA7:00 amFrankfurt am Main
21h 09m
2 stops
STL9:09 pmLambert-St Louis
May 24
STL6:45 amLambert-St Louis
20h 05m
1 stop
FRA9:50 amFrankfurt am Main
$802
Delta
May 21
FRA7:00 amFrankfurt am Main
14h 31m
2 stops
STL2:31 pmLambert-St Louis
May 24
STL6:45 amLambert-St Louis
20h 05m
1 stop
FRA9:50 amFrankfurt am Main
$805
Delta
May 21
FRA7:00 amFrankfurt am Main
16h 15m
2 stops
STL4:15 pmLambert-St Louis
May 24
STL10:19 amLambert-St Louis
16h 16m
2 stops
FRA9:35 amFrankfurt am Main
$807

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 May 10, 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

Cheapest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 5/21

11:00 am-5:16 pm

1 stop13h 16m

Lambert-St Louis

Sun 5/24

7:05 pm-8:55 am

1 stop30h 50m

$735

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/1

10:55 am-8:51 am

1 stop28h 56m

Lambert-St Louis

Tue 6/16

6:13 pm-7:20 am

1 stop30h 07m

$754
Quickest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/1

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Tue 6/16

3:30 pm-7:25 am

Nonstop8h 55m

$763

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 6/24

10:55 am-9:37 pm

1 stop17h 42m

Lambert-St Louis

Tue 6/30

9:35 pm-7:45 pm

1 stop15h 10m

$768

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/1

5:20 pm-11:29 pm

1 stop13h 09m

Lambert-St Louis

Tue 6/16

3:30 pm-7:25 am

Nonstop8h 55m

$769

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 6/19

9:20 am-11:44 pm

1 stop21h 24m

Lambert-St Louis

Wed 6/24

6:13 pm-7:20 am

1 stop30h 07m

$776

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 6/26

9:55 am-8:25 pm

1 stop17h 30m

Lambert-St Louis

Fri 7/3

1:13 pm-2:05 pm

1 stop17h 52m

$777

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 6/26

9:55 am-8:25 pm

1 stop17h 30m

Lambert-St Louis

Fri 7/3

5:33 pm-6:00 am

2 stops29h 27m

$781

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 6/1

10:00 am-8:09 pm

1 stop17h 09m

Lambert-St Louis

Tue 6/16

3:30 pm-7:25 am

Nonstop8h 55m

$787

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 10/7

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Mon 11/23

1:27 pm-9:55 am

1 stop13h 28m

$788

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, February 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 $705. The month of October is another great option to travel to St. Louis, with average flight prices from Frankfurt am Main Airport averaging around $762.

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 Friday when prices can be found for as low as $1,015. 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 $1,578. 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 Airport 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 $869 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 $703 on momondo.

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

You could potentially save up to 33% 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 May 2026, prices for Frankfurt am Main Airport to St. Louis flights are approximately 21% 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

Best Price Found

$884

Fastest flight time

9h 45m

Direct flights

Mon, Tue, Wed, Thu and Sat

Airports in St. Louis

1 airport
The best flight deal from Frankfurt am Main Airport to St. Louis found on momondo in the last 72 hours is $884
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, Tuesday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport in St. Louis. From Frankfurt am Main Airport there are direct flights to Lambert-St Louis (STL).
Search flight deals

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

  • 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 $606Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,985 reviews
Search Lufthansa flights

  • United Airlines Flights From Frankfurt am Main Airport to St. Louis

    Across 3 United Airlines flights from Frankfurt am Main Airport to St. Louis this week, the average price was $920, with the best United Airlines deals starting from $606 round-trip. 9,694 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • Lufthansa Flights From Frankfurt am Main Airport to St. Louis

    Across 7,985 Lufthansa reviews on momondo, the average score is 6.8/10. Lufthansa flies from Frankfurt am Main Airport to St. Louis about 3 times each week, with ticket deals ranging from $625 to $1,002. Price data is based on momondo searches in the last 72 hours.

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?

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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