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Cheap flights from St. Louis to Frankfurt am Main from $302

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Frankfurt am Main departing on 2/9. 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

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Find the cheapest flights from St. Louis to Frankfurt am Main

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
3:47 pm - 7:45 pm
STL
-
FRA
20h 58m
2 stops
Scandinavian Airlines Logo
3:15 pm - 8:41 pm
FRA
-
STL
36h 26m
2 stops
$770Scandinavian Airlines
Mon, Feb 23 - Wed, Mar 4
United Airlines Logo
1:14 pm - 1:05 pm
STL
-
FRA
17h 51m
2 stops
United Airlines Logo
5:05 pm - 12:22 pm
FRA
-
STL
26h 17m
2 stops
$855United Airlines
Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
1:14 pm - 6:35 am
STL
-
FRA
11h 21m
1 stop
United Airlines Logo
5:05 pm - 12:22 pm
FRA
-
STL
26h 17m
2 stops
$858United Airlines
Tue, Mar 24 - Tue, Mar 31
Scandinavian Airlines Logo
3:47 pm - 9:50 am
STL
-
FRA
35h 03m
2 stops
Scandinavian Airlines Logo
3:15 pm - 8:41 pm
FRA
-
STL
36h 26m
2 stops
$860Scandinavian Airlines
Mon, Feb 23 - Wed, Mar 4
British Airways Logo
2:33 pm - 6:15 pm
STL
-
FRA
20h 42m
2 stops
British Airways Logo
3:55 pm - 7:30 pm
FRA
-
STL
34h 35m
1 stop
$868British Airways
Wed, Apr 22 - Tue, Apr 28
British Airways Logo
11:46 am - 7:15 am
STL
-
FRA
13h 29m
1 stop
British Airways Logo
9:20 am - 5:01 pm
FRA
-
STL
14h 41m
1 stop
$870British Airways
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
12:11 pm - 10:15 am
STL
-
FRA
15h 04m
2 stops
Multiple Airlines Logo
10:55 am - 7:30 pm
FRA
-
STL
15h 35m
1 stop
$871Multiple Airlines
Sun, May 3 - Thu, May 7
Multiple Airlines Logo
11:15 am - 8:00 am
STL
-
FRA
13h 45m
2 stops
Multiple Airlines Logo
9:10 pm - 3:24 pm
FRA
-
STL
25h 14m
2 stops
$873Multiple Airlines
Wed, Apr 22 - Tue, Apr 28
British Airways Logo
12:27 pm - 8:45 am
STL
-
FRA
13h 18m
1 stop
British Airways Logo
3:55 pm - 7:30 pm
FRA
-
STL
34h 35m
1 stop
$877British Airways
Wed, Apr 22 - Tue, Apr 28
Multiple Airlines Logo
12:11 pm - 10:15 am
STL
-
FRA
15h 04m
2 stops
Multiple Airlines Logo
10:45 am - 10:14 pm
FRA
-
STL
18h 29m
2 stops
$881Multiple Airlines
Sun, May 3 - Thu, May 7

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

Our best British Airways deals on St. Louis to Frankfurt am Main Airport flight tickets
British Airways
Apr 22
STL2:33 pmLambert-St Louis
20h 42m
2 stops
FRA6:15 pmFrankfurt am Main
Apr 28
FRA3:55 pmFrankfurt am Main
34h 35m
1 stop
STL7:30 pmLambert-St Louis
$868
British Airways
Mar 24
STL11:46 amLambert-St Louis
13h 29m
1 stop
FRA7:15 amFrankfurt am Main
Mar 31
FRA9:20 amFrankfurt am Main
14h 41m
1 stop
STL5:01 pmLambert-St Louis
$870
British Airways
Apr 22
STL12:27 pmLambert-St Louis
13h 18m
1 stop
FRA8:45 amFrankfurt am Main
Apr 28
FRA3:55 pmFrankfurt am Main
34h 35m
1 stop
STL7:30 pmLambert-St Louis
$877

Aer Lingus flights from St. Louis to Frankfurt am Main Airport

Our best Aer Lingus deals on St. Louis to Frankfurt am Main Airport flight tickets
Aer Lingus
Mar 29
STL12:05 pmLambert-St Louis
39h 10m
2 stops
FRA10:15 amFrankfurt am Main
Apr 12
FRA10:55 amFrankfurt am Main
19h 53m
2 stops
STL11:48 pmLambert-St Louis
$898
Aer Lingus
Mar 1
STL9:20 amLambert-St Louis
17h 45m
2 stops
FRA10:05 amFrankfurt am Main
Mar 8
FRA10:45 amFrankfurt am Main
19h 03m
2 stops
STL11:48 pmLambert-St Louis
$918
Aer Lingus
Mar 31
STL12:05 pmLambert-St Louis
15h 10m
2 stops
FRA10:15 amFrankfurt am Main
Apr 28
FRA10:55 amFrankfurt am Main
19h 53m
2 stops
STL11:48 pmLambert-St Louis
$920

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Frankfurt am Main Airport 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 St. Louis to Frankfurt am Main Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 2/23

3:47 pm-7:45 pm

2 stops20h 58m

Frankfurt am Main

Wed 3/4

3:15 pm-8:41 pm

2 stops36h 26m

$770

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 3/24

1:14 pm-1:05 pm

2 stops17h 51m

Frankfurt am Main

Tue 3/31

5:05 pm-12:22 pm

2 stops26h 17m

$855

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 3/24

1:14 pm-6:35 am

1 stop11h 21m

Frankfurt am Main

Tue 3/31

5:05 pm-12:22 pm

2 stops26h 17m

$858

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 2/23

3:47 pm-9:50 am

2 stops35h 03m

Frankfurt am Main

Wed 3/4

3:15 pm-8:41 pm

2 stops36h 26m

$860

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/22

2:33 pm-6:15 pm

2 stops20h 42m

Frankfurt am Main

Tue 4/28

3:55 pm-7:30 pm

1 stop34h 35m

$868

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 3/24

11:46 am-7:15 am

1 stop13h 29m

Frankfurt am Main

Tue 3/31

9:20 am-5:01 pm

1 stop14h 41m

$870

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 5/3

12:11 pm-10:15 am

2 stops15h 04m

Frankfurt am Main

Thu 5/7

10:55 am-7:30 pm

1 stop15h 35m

$871

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/22

11:15 am-8:00 am

2 stops13h 45m

Frankfurt am Main

Tue 4/28

9:10 pm-3:24 pm

2 stops25h 14m

$873

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 4/22

12:27 pm-8:45 am

1 stop13h 18m

Frankfurt am Main

Tue 4/28

3:55 pm-7:30 pm

1 stop34h 35m

$877

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 5/3

12:11 pm-10:15 am

2 stops15h 04m

Frankfurt am Main

Thu 5/7

10:45 am-10:14 pm

2 stops18h 29m

$881

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 Frankfurt am Main from

How to get the cheapest flight ticket from St. Louis to Frankfurt am Main Airport

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 St. Louis and Frankfurt am Main Airport?

What is the cheapest month to fly to Frankfurt am Main Airport?

In general, August is the cheapest month to fly from St. Louis to Frankfurt am Main Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $986. If you aren’t able to travel to Frankfurt am Main Airport during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $987.

What is the cheapest day to depart on your flight to Frankfurt am Main Airport?

On average, the least expensive day to fly to Frankfurt am Main Airport from St. Louis is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $864. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from St. Louis to Frankfurt am Main Airport on a Friday will generally be more expensive and average around $1,223. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Lambert-St Louis to Frankfurt am Main flight route?

Fly from Lambert-St Louis to Frankfurt am Main for the best Lambert-St Louis - Frankfurt am Main flight prices

How far in advance should I book a flight to Frankfurt am Main Airport?

You are more likely to see cheaper flights to Frankfurt am Main Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Frankfurt am Main Airport for around $1,183 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Frankfurt am Main Airport from St. Louis for as low as $931 on momondo.

What cabin class options are available on Lambert-St Louis to Frankfurt am Main flights?

There are 3 cabin classes available to choose from on Lambert-St Louis to Frankfurt am Main 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 St. Louis to Frankfurt am Main Airport flights?

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

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

As of February 2026, prices for St. Louis to Frankfurt am Main Airport flights are approximately 3% cheaper when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$439

Fastest flight time

8h 40m

Direct flights

Mon, Tue, Thu and Sat
The best one-way flight to Frankfurt am Main Airport from St. Louis in the past 72 hours is $439. The best round-trip flight deal from St. Louis to Frankfurt am Main Airport found on momondo in the last 72 hours is $716.
The fastest flight from St. Louis to Frankfurt am Main Airport takes 8h 40m
Direct flights go from St. Louis to Frankfurt am Main Airport on Monday, Tuesday, Thursday and Saturday. There are no airlines offering direct flights.
Search flight deals

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

    There are 4576.9 mi between Lambert-St Louis and Frankfurt am Main. In terms of flight time, this usually takes a little over 8h 40m.

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

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

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

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

  • What documentation or ID do you need to fly to Frankfurt am Main Airport?

    The travel and health documents you'll need for your trip to Frankfurt am Main Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Frankfurt am Main Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

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

Compare and see reviews for airlines that fly from St. Louis to Frankfurt am Main Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $390Free CancellationRating
7.2
11,212 reviews
Search American Airlines flights
DeltaPriceFrom $610Free CancellationRating
7.9
8,135 reviews
Search Delta flights
British AirwaysPriceFrom $648Free CancellationRating
6.7
7,711 reviews
Search British Airways flights
United AirlinesPriceFrom $739Free CancellationRating
7.4
9,231 reviews
Search United Airlines flights
LufthansaPriceFrom $816Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights
KLMPriceFrom $841Free CancellationRating
7.7
1,448 reviews
Search KLM flights
Air CanadaPriceFrom $921Free CancellationRating
7.1
10,676 reviews
Search Air Canada flights

Traveling to a place near Frankfurt am Main?

Book flights to Frankfurt am Main if you plan to visit one of these locations
Heidelberg
Baden-Baden
Wurzburg
Koblenz
Mainz
Rothenburg ob der Tauber
Trier
Wiesbaden
Fulda
Darmstadt
Heilbronn
Kaiserslautern
Aschaffenburg
Marburg
Cochem
Rüdesheim am Rhein
Ludwigsburg
Bernkastel-Kues
Nuerburg
Bad Kissingen

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Frankfurt am Main. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Frankfurt am Main from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between St. Louis and Frankfurt am Main by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Frankfurt am Main, momondo offers a useful price alert feature which will track prices for flights to Frankfurt am Main from St. Louis and alert you when they change.

An easier way to manage your Frankfurt am Main Airport trip

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