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Cheap flights from St. Louis to Frankfurt am Main from $266

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 11/7. 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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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
1:30 pm - 2:40 pmSTL-FRA
18h 10m2 stops
Scandinavian Airlines Logo
3:15 pm - 11:44 pmFRA-STL
39h 29m2 stops
$630Scandinavian Airlines
Find Deal
Tue, Oct 21 - Sat, Nov 8
Scandinavian Airlines Logo
3:59 pm - 2:40 pmSTL-FRA
15h 41m2 stops
Scandinavian Airlines Logo
3:15 pm - 11:44 pmFRA-STL
39h 29m2 stops
$631Scandinavian Airlines
Find Deal
Tue, Oct 21 - Sat, Nov 8
Scandinavian Airlines Logo
1:30 pm - 7:45 pmSTL-FRA
23h 15m2 stops
Scandinavian Airlines Logo
3:15 pm - 10:04 pmFRA-STL
36h 49m2 stops
$660Scandinavian Airlines
Find Deal
Tue, Oct 21 - Fri, Oct 31
Lufthansa Logo
3:50 pm - 7:30 amSTL-FRA
8h 40mnonstop
Lufthansa Logo
10:45 am - 1:55 pmFRA-STL
10h 10mnonstop
$810Lufthansa
Find Deal
Wed, Dec 3 - Wed, Dec 10
Air Canada Logo
4:05 pm - 7:25 amSTL-FRA
32h 20m2 stops
Air Canada Logo
1:40 pm - 3:29 pmFRA-STL
32h 49m1 stop
$832Air Canada
Find Deal
Sun, Dec 28 - Fri, Jan 9
Air Canada Logo
4:05 pm - 7:55 amSTL-FRA
32h 50m1 stop
Air Canada Logo
9:45 am - 3:29 pmFRA-STL
36h 44m2 stops
$837Air Canada
Find Deal
Sat, Jan 10 - Fri, Jan 23
Lufthansa Logo
3:50 pm - 7:30 amSTL-FRA
8h 40mnonstop
Lufthansa Logo
2:15 pm - 11:42 pmFRA-STL
16h 27m2 stops
$839Lufthansa
Find Deal
Wed, Dec 3 - Wed, Dec 10
United Airlines Logo
3:13 pm - 9:55 amSTL-FRA
11h 42m1 stop
United Airlines Logo
9:45 am - 10:46 amFRA-STL
32h 01m2 stops
$844United Airlines
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Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
5:31 pm - 4:05 pmSTL-FRA
15h 34m2 stops
United Airlines Logo
5:10 pm - 3:40 pmFRA-STL
29h 30m2 stops
$847United Airlines
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Tue, Nov 25 - Thu, Dec 11
American Airlines Logo
3:43 pm - 2:10 pmSTL-FRA
15h 27m2 stops
American Airlines Logo
10:15 am - 7:22 pmFRA-STL
16h 07m1 stop
$864American Airlines
Find Deal
Tue, Dec 2 - Thu, Dec 18

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
Oct 21
STL1:30 pmLambert-St Louis
18h 10m
2 stops
FRA2:40 pmFrankfurt am Main
Nov 8
FRA3:15 pmFrankfurt am Main
39h 29m
2 stops
STL11:44 pmLambert-St Louis
$630
Find similar
Scandinavian Airlines
Oct 21
STL3:59 pmLambert-St Louis
15h 41m
2 stops
FRA2:40 pmFrankfurt am Main
Nov 8
FRA3:15 pmFrankfurt am Main
39h 29m
2 stops
STL11:44 pmLambert-St Louis
$631
Find similar
Scandinavian Airlines
Oct 21
STL1:30 pmLambert-St Louis
23h 15m
2 stops
FRA7:45 pmFrankfurt am Main
Oct 31
FRA3:15 pmFrankfurt am Main
36h 49m
2 stops
STL10:04 pmLambert-St Louis
$660
Find similar

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

Our best United Airlines deals on St. Louis to Frankfurt am Main Airport flight tickets
United Airlines
Dec 2
STL3:13 pmLambert-St Louis
11h 42m
1 stop
FRA9:55 amFrankfurt am Main
Dec 9
FRA9:45 amFrankfurt am Main
32h 01m
2 stops
STL10:46 amLambert-St Louis
$844
Find similar
United Airlines
Nov 25
STL5:31 pmLambert-St Louis
15h 34m
2 stops
FRA4:05 pmFrankfurt am Main
Dec 11
FRA5:10 pmFrankfurt am Main
29h 30m
2 stops
STL3:40 pmLambert-St Louis
$847
Find similar
United Airlines
Nov 25
STL1:10 pmLambert-St Louis
14h 55m
2 stops
FRA11:05 amFrankfurt am Main
Dec 11
FRA5:10 pmFrankfurt am Main
29h 30m
2 stops
STL3:40 pmLambert-St Louis
$848
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 October 2, 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

Tue 10/21

1:30 pm-2:40 pm

2 stops18h 10m

Frankfurt am Main

Sat 11/8

3:15 pm-11:44 pm

2 stops39h 29m

$630

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 10/21

3:59 pm-2:40 pm

2 stops15h 41m

Frankfurt am Main

Sat 11/8

3:15 pm-11:44 pm

2 stops39h 29m

$631

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 10/21

1:30 pm-7:45 pm

2 stops23h 15m

Frankfurt am Main

Fri 10/31

3:15 pm-10:04 pm

2 stops36h 49m

$660

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 12/3

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Wed 12/10

10:45 am-1:55 pm

Nonstop10h 10m

$810

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 12/28

4:05 pm-7:25 am

2 stops32h 20m

Frankfurt am Main

Fri 1/9

1:40 pm-3:29 pm

1 stop32h 49m

$832

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 1/10

4:05 pm-7:55 am

1 stop32h 50m

Frankfurt am Main

Fri 1/23

9:45 am-3:29 pm

2 stops36h 44m

$837

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 12/3

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

Wed 12/10

2:15 pm-11:42 pm

2 stops16h 27m

$839

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 12/2

3:13 pm-9:55 am

1 stop11h 42m

Frankfurt am Main

Tue 12/9

9:45 am-10:46 am

2 stops32h 01m

$844

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 11/25

5:31 pm-4:05 pm

2 stops15h 34m

Frankfurt am Main

Thu 12/11

5:10 pm-3:40 pm

2 stops29h 30m

$847

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 12/2

3:43 pm-2:10 pm

2 stops15h 27m

Frankfurt am Main

Thu 12/18

10:15 am-7:22 pm

1 stop16h 07m

$864

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, 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 $994.

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 $1,177. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from St. Louis to Frankfurt am Main Airport on a Saturday will generally be more expensive and average around $1,265. 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 $1,213.

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 $1,187 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 $945 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?

You could potentially save up to 17% on your flight if you consider stops on a St. Louis to Frankfurt am Main Airport flight.

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

As of October 2025, prices for St. Louis to Frankfurt am Main Airport flights are approximately 20% 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

$540

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 $540. The best round-trip flight deal from St. Louis to Frankfurt am Main Airport found on momondo in the last 72 hours is $886.
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. 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 $488Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $610Free CancellationRating
7.9
7,962 reviews
Search Delta flights
British AirwaysPriceFrom $706Free CancellationRating
6.7
7,415 reviews
Search British Airways flights
United AirlinesPriceFrom $776Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights
LufthansaPriceFrom $813Free CancellationRating
6.8
7,444 reviews
Search Lufthansa flights
KLMPriceFrom $841Free CancellationRating
7.8
1,389 reviews
Search KLM flights
Air CanadaPriceFrom $921Free CancellationRating
7.1
10,000 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 8,933 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 $776 (round-trip), much lower than the average airfare cost of $1,132 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, 7,444 ratings). Lufthansa flies from St. Louis to Frankfurt am Main Airport around 3 times per week, with deals starting from $813 round-trip and rising to an average price of around $1,323.

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
Wurzburg
Darmstadt
Fulda
Kaiserslautern
Heilbronn
Marburg
Cochem
Rüdesheim am Rhein
Bad Homburg
Bernkastel-Kues
Bad Kissingen
Nuerburg
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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