Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Frankfurt am Main Airport to St. Louis from $476

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 5/17. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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.
Multiple Airlines Logo
8:20 am - 11:57 pm
FRA
-
STL
22h 37m
2 stops
Multiple Airlines Logo
7:09 pm - 6:30 am
STL
-
FRA
28h 21m
1 stop
$713Multiple Airlines
Tue, Apr 21 - Fri, May 8
British Airways Logo
6:40 am - 7:30 pm
FRA
-
STL
19h 50m
1 stop
British Airways Logo
4:32 pm - 1:50 pm
STL
-
FRA
14h 18m
2 stops
$723British Airways
Tue, Aug 25 - Tue, Sep 1
Finnair Logo
11:30 am - 10:17 pm
FRA
-
STL
17h 47m
2 stops
Finnair Logo
5:21 pm - 6:35 pm
STL
-
FRA
18h 14m
2 stops
$725Finnair
Thu, Apr 23 - Wed, Apr 29
Air Canada Logo
5:35 pm - 6:42 pm
FRA
-
STL
32h 07m
1 stop
Air Canada Logo
12:10 pm - 6:00 am
STL
-
FRA
10h 50m
1 stop
$726Air Canada
Tue, Aug 25 - Tue, Sep 1
Finnair Logo
11:30 am - 10:17 pm
FRA
-
STL
17h 47m
2 stops
Finnair Logo
12:27 pm - 8:45 am
STL
-
FRA
13h 18m
1 stop
$731Finnair
Thu, Apr 23 - Tue, Apr 28
Lufthansa Logo
5:20 pm - 11:11 pm
FRA
-
STL
12h 51m
1 stop
Lufthansa Logo
1:10 pm - 7:25 am
STL
-
FRA
11h 15m
1 stop
$732Lufthansa
Sun, Apr 5 - Sun, Apr 19
Multiple Airlines Logo
9:20 am - 7:30 pm
FRA
-
STL
17h 10m
1 stop
Multiple Airlines Logo
5:20 am - 8:45 am
STL
-
FRA
20h 25m
1 stop
$734Multiple Airlines
Thu, Apr 23 - Tue, Apr 28
British Airways Logo
9:20 am - 7:30 pm
FRA
-
STL
17h 10m
1 stop
British Airways Logo
9:35 pm - 6:40 pm
STL
-
FRA
14h 05m
1 stop
$735British Airways
Wed, May 13 - Wed, May 27
Multiple Airlines Logo
5:05 pm - 12:06 pm
FRA
-
STL
26h 01m
1 stop
Multiple Airlines Logo
7:05 am - 6:30 am
STL
-
FRA
16h 25m
1 stop
$736Multiple Airlines
Fri, May 1 - Fri, May 8
Air Canada Logo
2:20 pm - 12:13 pm
FRA
-
STL
28h 53m
2 stops
Air Canada Logo
12:10 pm - 6:00 am
STL
-
FRA
10h 50m
1 stop
$737Air Canada
Thu, Sep 10 - Mon, Oct 5

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 25
FRA6:40 amFrankfurt am Main
19h 50m
1 stop
STL7:30 pmLambert-St Louis
Sep 1
STL4:32 pmLambert-St Louis
14h 18m
2 stops
FRA1:50 pmFrankfurt am Main
$723
British Airways
May 13
FRA9:20 amFrankfurt am Main
17h 10m
1 stop
STL7:30 pmLambert-St Louis
May 27
STL9:35 pmLambert-St Louis
14h 05m
1 stop
FRA6:40 pmFrankfurt am Main
$735
British Airways
Apr 5
FRA9:20 amFrankfurt am Main
17h 10m
1 stop
STL7:30 pmLambert-St Louis
Apr 19
STL12:27 pmLambert-St Louis
13h 18m
1 stop
FRA8:45 amFrankfurt am Main
$754

Finnair flights from Frankfurt am Main Airport to St. Louis

Our best Finnair deals on Frankfurt am Main Airport to St. Louis flight tickets
Finnair
Apr 23
FRA11:30 amFrankfurt am Main
17h 47m
2 stops
STL10:17 pmLambert-St Louis
Apr 29
STL5:21 pmLambert-St Louis
18h 14m
2 stops
FRA6:35 pmFrankfurt am Main
$725
Finnair
Apr 23
FRA11:30 amFrankfurt am Main
17h 47m
2 stops
STL10:17 pmLambert-St Louis
Apr 28
STL12:27 pmLambert-St Louis
13h 18m
1 stop
FRA8:45 amFrankfurt am Main
$731
Finnair
Apr 23
FRA11:30 amFrankfurt am Main
17h 47m
2 stops
STL10:17 pmLambert-St Louis
Apr 28
STL12:27 pmLambert-St Louis
23h 08m
2 stops
FRA6:35 pmFrankfurt am Main
$751

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 March 23, 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

Tue 4/21

8:20 am-11:57 pm

2 stops22h 37m

Lambert-St Louis

Fri 5/8

7:09 pm-6:30 am

1 stop28h 21m

$713

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 8/25

6:40 am-7:30 pm

1 stop19h 50m

Lambert-St Louis

Tue 9/1

4:32 pm-1:50 pm

2 stops14h 18m

$723

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 4/23

11:30 am-10:17 pm

2 stops17h 47m

Lambert-St Louis

Wed 4/29

5:21 pm-6:35 pm

2 stops18h 14m

$725

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 8/25

5:35 pm-6:42 pm

1 stop32h 07m

Lambert-St Louis

Tue 9/1

12:10 pm-6:00 am

1 stop10h 50m

$726

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 4/23

11:30 am-10:17 pm

2 stops17h 47m

Lambert-St Louis

Tue 4/28

12:27 pm-8:45 am

1 stop13h 18m

$731
Quickest round-trip

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sun 4/5

5:20 pm-11:11 pm

1 stop12h 51m

Lambert-St Louis

Sun 4/19

1:10 pm-7:25 am

1 stop11h 15m

$732

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 4/23

9:20 am-7:30 pm

1 stop17h 10m

Lambert-St Louis

Tue 4/28

5:20 am-8:45 am

1 stop20h 25m

$734

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 5/13

9:20 am-7:30 pm

1 stop17h 10m

Lambert-St Louis

Wed 5/27

9:35 pm-6:40 pm

1 stop14h 05m

$735

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 5/1

5:05 pm-12:06 pm

1 stop26h 01m

Lambert-St Louis

Fri 5/8

7:05 am-6:30 am

1 stop16h 25m

$736

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 9/10

2:20 pm-12:13 pm

2 stops28h 53m

Lambert-St Louis

Mon 10/5

12:10 pm-6:00 am

1 stop10h 50m

$737

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 cheapest month to fly to St. Louis?

In general, November 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 $676. The month of February is another great option to travel to St. Louis, with average flight prices from Frankfurt am Main Airport averaging around $705.

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 $1,046. 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 Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $796 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.

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 32% 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 March 2026, prices for Frankfurt am Main Airport to St. Louis flights are approximately 70% more expensive 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

$972

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 $972. The best round-trip flight deal from Frankfurt am Main Airport to St. Louis found on momondo in the last 72 hours is $903.
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. 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 $617Free CancellationRating
7.4
9,462 reviews
Search United Airlines flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,860 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 $859, with the best United Airlines deals starting from $617 round-trip. 9,462 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 7,860 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
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
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.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 4/22
Wed 4/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States