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Cheap flights from Frankfurt am Main Airport to St. Louis from $448

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 9/2. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 5:24 pm
FRA
-
STL
13h 24m
1 stop
Virgin Atlantic Logo
10:19 am - 9:50 am
STL
-
FRA
16h 31m
1 stop
$483Virgin Atlantic
Sat, Jul 11 - Sat, Jul 18
British Airways Logo
9:20 am - 4:25 pm
FRA
-
STL
14h 05m
1 stop
British Airways Logo
10:22 am - 7:20 am
STL
-
FRA
13h 58m
1 stop
$680British Airways
Wed, Aug 19 - Tue, Sep 8
British Airways Logo
10:55 am - 11:31 pm
FRA
-
STL
18h 36m
1 stop
British Airways Logo
2:50 pm - 2:10 pm
STL
-
FRA
16h 20m
2 stops
$711British Airways
Mon, Oct 26 - Tue, Nov 3
British Airways Logo
10:55 am - 9:24 am
FRA
-
STL
29h 29m
1 stop
British Airways Logo
10:22 am - 7:20 am
STL
-
FRA
13h 58m
1 stop
$713British Airways
Fri, Aug 21 - Thu, Sep 3
British Airways Logo
9:20 am - 7:30 pm
FRA
-
STL
17h 10m
1 stop
British Airways Logo
12:52 pm - 7:20 am
STL
-
FRA
11h 28m
1 stop
$716British Airways
Thu, Sep 17 - Fri, Oct 16
British Airways Logo
10:55 am - 9:27 am
FRA
-
STL
29h 32m
1 stop
British Airways Logo
8:30 am - 7:15 am
STL
-
FRA
16h 45m
1 stop
$717British Airways
Wed, Oct 21 - Wed, Oct 28
Multiple Airlines Logo
10:55 am - 6:05 pm
FRA
-
STL
14h 10m
1 stop
Multiple Airlines Logo
6:54 am - 7:20 am
STL
-
FRA
17h 26m
1 stop
$718Multiple Airlines
Fri, Aug 21 - Thu, Sep 3
British Airways Logo
9:20 am - 4:50 pm
FRA
-
STL
14h 30m
1 stop
British Airways Logo
10:22 am - 7:20 am
STL
-
FRA
13h 58m
1 stop
$719British Airways
Tue, Aug 11 - Thu, Aug 20
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
3:30 pm - 7:25 am
STL
-
FRA
8h 55mnonstop
$720Lufthansa
Sun, Jul 26 - Sun, Aug 9
KLM Logo
2:15 pm - 11:36 pm
FRA
-
STL
16h 21m
2 stops
KLM Logo
10:45 am - 9:50 am
STL
-
FRA
16h 05m
1 stop
$721KLM
Thu, Sep 17 - Fri, Oct 16

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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
Aug 19
FRA9:20 amFrankfurt am Main
14h 05m
1 stop
STL4:25 pmLambert-St Louis
Sep 8
STL10:22 amLambert-St Louis
13h 58m
1 stop
FRA7:20 amFrankfurt am Main
$680
British Airways
Oct 26
FRA10:55 amFrankfurt am Main
18h 36m
1 stop
STL11:31 pmLambert-St Louis
Nov 3
STL2:50 pmLambert-St Louis
16h 20m
2 stops
FRA2:10 pmFrankfurt am Main
$711
British Airways
Aug 21
FRA10:55 amFrankfurt am Main
29h 29m
1 stop
STL9:24 amLambert-St Louis
Sep 3
STL10:22 amLambert-St Louis
13h 58m
1 stop
FRA7:20 amFrankfurt am Main
$713

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
Sep 7
FRA7:00 amFrankfurt am Main
16h 38m
2 stops
STL4:38 pmLambert-St Louis
Sep 25
STL6:40 amLambert-St Louis
20h 10m
1 stop
FRA9:50 amFrankfurt am Main
$727
Delta
Oct 10
FRA7:00 amFrankfurt am Main
23h 18m
2 stops
STL11:18 pmLambert-St Louis
Oct 18
STL6:00 amLambert-St Louis
19h 55m
1 stop
FRA8:55 amFrankfurt am Main
$730
Delta
Nov 20
FRA10:15 amFrankfurt am Main
17h 34m
2 stops
STL8:49 pmLambert-St Louis
Dec 13
STL2:18 pmLambert-St Louis
16h 17m
2 stops
FRA1:35 pmFrankfurt am Main
$731

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 June 24, 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

Sat 7/11

11:00 am-5:24 pm

1 stop13h 24m

Lambert-St Louis

Sat 7/18

10:19 am-9:50 am

1 stop16h 31m

$483

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 8/19

9:20 am-4:25 pm

1 stop14h 05m

Lambert-St Louis

Tue 9/8

10:22 am-7:20 am

1 stop13h 58m

$680

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Mon 10/26

10:55 am-11:31 pm

1 stop18h 36m

Lambert-St Louis

Tue 11/3

2:50 pm-2:10 pm

2 stops16h 20m

$711

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 8/21

10:55 am-9:24 am

1 stop29h 29m

Lambert-St Louis

Thu 9/3

10:22 am-7:20 am

1 stop13h 58m

$713

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 9/17

9:20 am-7:30 pm

1 stop17h 10m

Lambert-St Louis

Fri 10/16

12:52 pm-7:20 am

1 stop11h 28m

$716

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 10/21

10:55 am-9:27 am

1 stop29h 32m

Lambert-St Louis

Wed 10/28

8:30 am-7:15 am

1 stop16h 45m

$717

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 8/21

10:55 am-6:05 pm

1 stop14h 10m

Lambert-St Louis

Thu 9/3

6:54 am-7:20 am

1 stop17h 26m

$718

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 8/11

9:20 am-4:50 pm

1 stop14h 30m

Lambert-St Louis

Thu 8/20

10:22 am-7:20 am

1 stop13h 58m

$719
Quickest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 7/26

10:40 am-1:25 pm

Nonstop9h 45m

Lambert-St Louis

Sun 8/9

3:30 pm-7:25 am

Nonstop8h 55m

$720

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 9/17

2:15 pm-11:36 pm

2 stops16h 21m

Lambert-St Louis

Fri 10/16

10:45 am-9:50 am

1 stop16h 05m

$721

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $707. 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 Wednesday when prices can be found for as low as $862. 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 Monday because tickets tend to average around $1,057. 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 $884 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 $763 on momondo.

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

There are 3 cabin classes available to choose from on Frankfurt am Main Airport to 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?

No. A direct flight is the cheapest option for a flight between Frankfurt am Main Airport to St. Louis.

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

As of June 2026, prices for Frankfurt am Main Airport to St. Louis flights are approximately 33% 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

$950

Fastest flight time

9h 45m

Direct flights

Mon, Tue, Wed, Thu and Sat

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Frankfurt am Main Airport in the past 72 hours is $950. The best round-trip flight deal from Frankfurt am Main Airport to St. Louis found on momondo in the last 72 hours is $783.
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
LufthansaPriceFrom $655Free CancellationRating
6.8
8,092 reviews
Search Lufthansa flights
United AirlinesPriceFrom $665Free CancellationRating
7.4
9,882 reviews
Search United Airlines flights

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

    Across 5 United Airlines flights from Frankfurt am Main Airport to St. Louis this week, the average price was $863, with the best United Airlines deals starting from $665 round-trip. 9,884 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 8,092 Lufthansa reviews on momondo, the average score is 6.8/10. Lufthansa flies from Frankfurt am Main Airport to St. Louis about 5 times each week, with ticket deals ranging from $655 to $884. 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
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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