Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Frankfurt am Main to St. Louis from $405

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 1/28. 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 to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:15 am - 6:34 pm
FRA
-
STL
15h 19m1 stop
Multiple Airlines Logo
3:54 pm - 3:40 pm
STL
-
FRA
16h 46m2 stops
$673Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
7:00 am - 7:29 pm
FRA
-
STL
19h 29m2 stops
Multiple Airlines Logo
3:54 pm - 3:40 pm
STL
-
FRA
16h 46m2 stops
$678Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
British Airways Logo
9:20 am - 5:13 pm
FRA
-
STL
14h 53m1 stop
British Airways Logo
7:03 pm - 6:15 pm
STL
-
FRA
16h 12m2 stops
$681British Airways
Fri, Apr 10 - Fri, Apr 24
Lufthansa Logo
1:30 pm - 11:59 pm
FRA
-
STL
17h 29m1 stop
Lufthansa Logo
12:15 pm - 11:50 am
STL
-
FRA
16h 35m1 stop
$682Lufthansa
Tue, Feb 10 - Fri, Feb 20
Lufthansa Logo
12:50 pm - 10:58 pm
FRA
-
STL
17h 08m1 stop
Lufthansa Logo
11:39 am - 7:25 am
STL
-
FRA
12h 46m1 stop
$684Lufthansa
Fri, Feb 6 - Thu, Feb 19
Lufthansa Logo
11:30 am - 8:23 pm
FRA
-
STL
15h 53m1 stop
Lufthansa Logo
12:15 pm - 11:50 am
STL
-
FRA
16h 35m1 stop
$686Lufthansa
Fri, Feb 13 - Fri, Feb 20
Multiple Airlines Logo
10:15 am - 7:19 pm
FRA
-
STL
16h 04m1 stop
Multiple Airlines Logo
7:05 am - 7:15 am
STL
-
FRA
17h 10m1 stop
$687Multiple Airlines
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
10:50 am - 11:02 pm
FRA
-
STL
19h 12m2 stops
Multiple Airlines Logo
11:46 am - 7:15 am
STL
-
FRA
12h 29m1 stop
$688Multiple Airlines
Sat, Feb 14 - Thu, Feb 19
Lufthansa Logo
7:25 am - 5:43 pm
FRA
-
STL
17h 18m2 stops
Lufthansa Logo
3:50 pm - 7:30 am
STL
-
FRA
8h 40mnonstop
$689Lufthansa
Fri, Jan 16 - Fri, Jan 23
British Airways Logo
6:10 am - 5:13 pm
FRA
-
STL
18h 03m2 stops
British Airways Logo
7:03 pm - 6:15 pm
STL
-
FRA
16h 12m2 stops
$690British Airways
Fri, Apr 10 - Fri, Apr 24

British Airways flights from Frankfurt am Main to St. Louis

Our best British Airways deals on Frankfurt am Main to St. Louis flight tickets
British Airways
Apr 10
FRA9:20 amFrankfurt am Main
14h 53m
1 stop
STL5:13 pmLambert-St Louis
Apr 24
STL7:03 pmLambert-St Louis
16h 12m
2 stops
FRA6:15 pmFrankfurt am Main
$681
Find similar
British Airways
Apr 10
FRA6:10 amFrankfurt am Main
18h 03m
2 stops
STL5:13 pmLambert-St Louis
Apr 24
STL7:03 pmLambert-St Louis
16h 12m
2 stops
FRA6:15 pmFrankfurt am Main
$690
Find similar
British Airways
Jan 30
FRA10:15 amFrankfurt am Main
15h 19m
1 stop
STL6:34 pmLambert-St Louis
Feb 6
STL12:11 pmLambert-St Louis
20h 29m
2 stops
FRA3:40 pmFrankfurt am Main
$696
Find similar

Lufthansa flights from Frankfurt am Main to St. Louis

Our best Lufthansa deals on Frankfurt am Main to St. Louis flight tickets
Lufthansa
Dec 26
FRA7:25 amFrankfurt am Main
21h 18m
2 stops
STL9:43 pmLambert-St Louis
Jan 9
STL11:22 amLambert-St Louis
14h 48m
1 stop
FRA9:10 amFrankfurt am Main
$662
Find similar
Lufthansa
Dec 26
FRA7:25 amFrankfurt am Main
16h 02m
2 stops
STL4:27 pmLambert-St Louis
Jan 9
STL3:50 pmLambert-St Louis
8h 40m
FRA7:30 amFrankfurt am Main
$677
Find similar
Lufthansa
Feb 10
FRA1:30 pmFrankfurt am Main
17h 29m
1 stop
STL11:59 pmLambert-St Louis
Feb 20
STL12:15 pmLambert-St Louis
16h 35m
1 stop
FRA11:50 amFrankfurt am Main
$682
Find similar

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 December 18, 2025.
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 1/30

10:15 am-6:34 pm

1 stop15h 19m

Lambert-St Louis

Fri 2/6

3:54 pm-3:40 pm

2 stops16h 46m

$673

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 1/30

7:00 am-7:29 pm

2 stops19h 29m

Lambert-St Louis

Fri 2/6

3:54 pm-3:40 pm

2 stops16h 46m

$678

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 4/10

9:20 am-5:13 pm

1 stop14h 53m

Lambert-St Louis

Fri 4/24

7:03 pm-6:15 pm

2 stops16h 12m

$681

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Tue 2/10

1:30 pm-11:59 pm

1 stop17h 29m

Lambert-St Louis

Fri 2/20

12:15 pm-11:50 am

1 stop16h 35m

$682

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 2/6

12:50 pm-10:58 pm

1 stop17h 08m

Lambert-St Louis

Thu 2/19

11:39 am-7:25 am

1 stop12h 46m

$684

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 2/13

11:30 am-8:23 pm

1 stop15h 53m

Lambert-St Louis

Fri 2/20

12:15 pm-11:50 am

1 stop16h 35m

$686

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sat 2/21

10:15 am-7:19 pm

1 stop16h 04m

Lambert-St Louis

Sat 2/28

7:05 am-7:15 am

1 stop17h 10m

$687

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sat 2/14

10:50 am-11:02 pm

2 stops19h 12m

Lambert-St Louis

Thu 2/19

11:46 am-7:15 am

1 stop12h 29m

$688

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 1/16

7:25 am-5:43 pm

2 stops17h 18m

Lambert-St Louis

Fri 1/23

3:50 pm-7:30 am

Nonstop8h 40m

$689

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 4/10

6:10 am-5:13 pm

2 stops18h 03m

Lambert-St Louis

Fri 4/24

7:03 pm-6:15 pm

2 stops16h 12m

$690

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 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 $629. 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 Friday because tickets tend to average around $1,010. 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 $761 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 $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.

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, 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, 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 $592Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
LufthansaPriceFrom $618Free CancellationRating
6.8
7,635 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
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Clayton
Festus
Glencoe
Farmington
Eureka
Edwardsville
Litchfield
Shrewsbury

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.

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
Sat 1/17
Sat 1/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States