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Cheap flights from St. Louis to Frankfurt am Main from $327

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 12/10. 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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Find the cheapest flights from St. Louis to Frankfurt am Main (STL-FRA)

Cheap round-trip flights

KLM Logo
10:45 am - 7:50 amSTL-FRA
14h 05m1 stop
KLM Logo
10:40 am - 8:35 pmFRA-STL
16h 55m1 stop
$557KLM
Find Deal
Wed, Nov 19 - Wed, Nov 26
Delta Logo
6:00 am - 7:50 amSTL-FRA
18h 50m2 stops
Delta Logo
10:40 am - 11:02 pmFRA-STL
19h 22m2 stops
$561Delta
Find Deal
Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
1:30 pm - 8:10 amSTL-FRA
11h 40m1 stop
United Airlines Logo
12:50 pm - 7:39 pmFRA-STL
13h 49m1 stop
$728United Airlines
Find Deal
Wed, Oct 1 - Tue, Nov 4
Air Canada Logo
5:30 pm - 8:10 amSTL-FRA
55h 40m2 stops
Air Canada Logo
9:55 am - 10:49 amFRA-STL
31h 54m2 stops
$735Air Canada
Find Deal
Fri, Sep 12 - Fri, Sep 26
British Airways Logo
2:11 pm - 1:50 pmSTL-FRA
16h 39m2 stops
British Airways Logo
10:55 am - 6:22 pmFRA-STL
14h 27m1 stop
$737British Airways
Find Deal
Wed, Sep 10 - Wed, Sep 17
Air Canada Logo
5:30 pm - 8:10 amSTL-FRA
55h 40m2 stops
Air Canada Logo
9:55 am - 7:57 pmFRA-STL
17h 02m1 stop
$738Air Canada
Find Deal
Fri, Sep 12 - Fri, Sep 26
Lufthansa Logo
3:50 pm - 7:30 amSTL-FRA
8h 40mnonstop
Lufthansa Logo
10:45 am - 1:55 pmFRA-STL
10h 10mnonstop
$743Lufthansa
Find Deal
Sun, Nov 23 - Wed, Dec 17
United Airlines Logo
8:25 am - 7:10 amSTL-FRA
15h 45m1 stop
United Airlines Logo
10:45 am - 1:55 pmFRA-STL
10h 10mnonstop
$747United Airlines
Find Deal
Sun, Nov 23 - Wed, Dec 17
British Airways Logo
11:39 am - 7:15 amSTL-FRA
12h 36m1 stop
British Airways Logo
10:15 am - 7:30 pmFRA-STL
16h 15m1 stop
$750British Airways
Find Deal
Wed, Nov 12 - Tue, Nov 18
Lufthansa Logo
3:30 pm - 7:25 amSTL-FRA
8h 55mnonstop
Lufthansa Logo
10:50 am - 3:44 pmFRA-STL
11h 54m1 stop
$779Lufthansa
Find Deal
Wed, Sep 3 - Fri, Sep 19

Scandinavian Airlines flights from St. Louis to Frankfurt am Main Airport

Our best Scandinavian Airlines deals on St. Louis to Frankfurt am Main Airport flight tickets
Scandinavian Airlines
Sep 4
STL1:21 pmLambert-St Louis
23h 24m
2 stops
FRA7:45 pmFrankfurt am Main
Sep 23
FRA3:20 pmFrankfurt am Main
37h 40m
2 stops
STL10:00 pmLambert-St Louis
$733
Find similar
Scandinavian Airlines
Oct 8
STL1:30 pmLambert-St Louis
18h 10m
2 stops
FRA2:40 pmFrankfurt am Main
Oct 15
FRA3:20 pmFrankfurt am Main
39h 21m
2 stops
STL11:41 pmLambert-St Louis
$734
Find similar
Scandinavian Airlines
Sep 4
STL1:21 pmLambert-St Louis
18h 19m
2 stops
FRA2:40 pmFrankfurt am Main
Sep 19
FRA3:20 pmFrankfurt am Main
37h 40m
2 stops
STL10:00 pmLambert-St Louis
$763
Find similar

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

Our best Air Canada deals on St. Louis to Frankfurt am Main Airport flight tickets
Air Canada
Sep 12
STL5:30 pmLambert-St Louis
55h 40m
2 stops
FRA8:10 amFrankfurt am Main
Sep 26
FRA9:55 amFrankfurt am Main
31h 54m
2 stops
STL10:49 amLambert-St Louis
$735
Find similar
Air Canada
Sep 12
STL5:30 pmLambert-St Louis
55h 40m
2 stops
FRA8:10 amFrankfurt am Main
Sep 26
FRA9:55 amFrankfurt am Main
17h 02m
1 stop
STL7:57 pmLambert-St Louis
$738
Find similar
Air Canada
Sep 9
STL9:15 amLambert-St Louis
14h 45m
2 stops
FRA7:00 amFrankfurt am Main
Sep 16
FRA10:00 amFrankfurt am Main
12h 18m
1 stop
STL3:18 pmLambert-St Louis
$746
Find similar

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 August 14, 2025.
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

Wed 11/19

10:45 am-7:50 am

1 stop14h 05m

Frankfurt am Main

Wed 11/26

10:40 am-8:35 pm

1 stop16h 55m

$557

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/19

6:00 am-7:50 am

2 stops18h 50m

Frankfurt am Main

Wed 11/26

10:40 am-11:02 pm

2 stops19h 22m

$561

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 10/1

1:30 pm-8:10 am

1 stop11h 40m

Frankfurt am Main

Tue 11/4

12:50 pm-7:39 pm

1 stop13h 49m

$728

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 9/12

5:30 pm-8:10 am

2 stops55h 40m

Frankfurt am Main

Fri 9/26

9:55 am-10:49 am

2 stops31h 54m

$735

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 9/10

2:11 pm-1:50 pm

2 stops16h 39m

Frankfurt am Main

Wed 9/17

10:55 am-6:22 pm

1 stop14h 27m

$737

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Fri 9/12

5:30 pm-8:10 am

2 stops55h 40m

Frankfurt am Main

Fri 9/26

9:55 am-7:57 pm

1 stop17h 02m

$738

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 11/23

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Wed 12/17

10:45 am-1:55 pm

Nonstop10h 10m

$743

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 11/23

8:25 am-7:10 am

1 stop15h 45m

Frankfurt am Main

Wed 12/17

10:45 am-1:55 pm

Nonstop10h 10m

$747

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/12

11:39 am-7:15 am

1 stop12h 36m

Frankfurt am Main

Tue 11/18

10:15 am-7:30 pm

1 stop16h 15m

$750

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 9/3

3:30 pm-7:25 am

Nonstop8h 55m

Frankfurt am Main

Fri 9/19

10:50 am-3:44 pm

1 stop11h 54m

$779

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 cheapest month to fly to Frankfurt am Main Airport?

In general, November 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 $917. If you aren’t able to travel to Frankfurt am Main Airport during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $980.

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 Monday. momondo users have found tickets for Monday departures for as low as $1,191. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from St. Louis to Frankfurt am Main Airport on a Sunday will generally be more expensive and average around $1,255. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Frankfurt am Main Airport is in the morning. momondo users have found flights departing from St. Louis to Frankfurt am Main Airport in the morning for as low as $1,117. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Frankfurt am Main Airport is in the afternoon when prices are around $1,230.

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 $987 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 August 2025, prices for St. Louis to Frankfurt am Main Airport flights are approximately 23% 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

$327

Fastest flight time

8h 40m

Direct flights

Mon, Thu and Sat
The best one-way flight to Frankfurt am Main Airport from St. Louis in the past 72 hours is $327. The best round-trip flight deal from St. Louis to Frankfurt am Main Airport found on momondo in the last 72 hours is $557.
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, Thursday and Saturday. Airlines offering direct flights are: United Airlines and Lufthansa.
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
DeltaPriceFrom $610Free CancellationRating
8.0
7,980 reviews
Search Delta flights
American AirlinesPriceFrom $612Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $740Free CancellationRating
6.6
7,266 reviews
Search British Airways flights
United AirlinesPriceFrom $785Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
LufthansaPriceFrom $808Free CancellationRating
6.8
7,317 reviews
Search Lufthansa flights
KLMPriceFrom $845Free CancellationRating
7.8
1,381 reviews
Search KLM flights
Air CanadaPriceFrom $921Free CancellationRating
7.1
9,949 reviews
Search Air Canada flights

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

    United Airlines flies from St. Louis to Frankfurt am Main Airport around 3 times per week, with 8,916 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from St. Louis to Frankfurt am Main Airport in the last 72 hours was $785 (round-trip), much lower than the average airfare cost of $1,127 for United Airlines flights on this route.

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

    Another popular option for St. Louis to Frankfurt am Main Airport flights is Lufthansa (6.8/10, 7,317 ratings). Lufthansa flies from St. Louis to Frankfurt am Main Airport around 3 times per week, with deals starting from $808 round-trip and rising to an average price of around $1,281.

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
Wiesbaden
Mainz
Koblenz
Trier
Rothenburg ob der Tauber
Darmstadt
Wurzburg
Kaiserslautern
Fulda
Heilbronn
Marburg
Cochem
Nuerburg
Ludwigsburg
Bernkastel-Kues
Boppard
Bad Homburg
Schwäbisch Hall

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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