What is the cheapest airline that flies from Lambert-St Louis to Frankfurt am Main?

British Airways, American Airlines, and Finnair are the most popular carriers operating from Lambert-St Louis to Frankfurt am Main

Which airport is the most popular layover for flights between St. Louis and Frankfurt am Main Airport?

Charlotte (CLT) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from St. Louis to Frankfurt am Main Airport on average per day?

As of June 2026, there are 1 flights per day flying from St. Louis to Frankfurt am Main Airport. The most common time of day flights depart is 3:00PM, with 100% of flights taking off in the afternoon.

Which layover airport has the shortest connection time from St. Louis to Frankfurt am Main Airport?

Chicago (ORD) has the shortest average layover time for this route: 1h 13m.

What airlines fly to Frankfurt am Main Airport?

Lufthansa, United Airlines and British Airways are the top three most popular airlines that fly to Frankfurt am Main Airport from St. Louis according to our data. Lufthansa is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Frankfurt am Main Airport. Keep in mind that there are 3 different airlines that fly to Frankfurt am Main Airport on a routine basis, so you have a few additional options to choose from.

How many flights depart from St. Louis to Frankfurt am Main Airport on average per week?

As of June 2026, there are 10 flights per week flying from St. Louis to Frankfurt am Main Airport. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.

Which layover airport has the shortest travel time from St. Louis to Frankfurt am Main Airport?

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 7h 24m.

Which layover airport offers the lowest fares from St. Louis to Frankfurt am Main Airport?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $355.

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?

There are 3 operators available for flights from Lambert-St Louis Airport to Frankfurt am Main Airport as of June 2026.

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.

$311 Cheap Flights from St. Louis to Frankfurt am Main Airport in 2026

Q: What is the typical price of a round-trip flight between St. Louis and Frankfurt am Main Airport?

Prices are currently low for flights on this route. Typical prices usually range from $1,410 to $1,874. The lowest price recently found on this route was $764.

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 5:45 am

STL

FRA

15h 45m

1 stop

12:30 pm - 7:45 pm

FRA

STL

14h 15m

1 stop

$764Multiple Airlines

Thu, Sep 17 - Thu, Sep 24

9:40 pm - 10:20 pm

STL

FRA

17h 40m

1 stop

6:30 am - 7:27 pm

FRA

STL

19h 57m

2 stops

$767Multiple Airlines

Sun, Aug 9 - Tue, Aug 25

9:35 pm - 7:45 pm

STL

FRA

15h 10m

1 stop

6:30 am - 7:27 pm

FRA

STL

19h 57m

2 stops

$774Multiple Airlines

Tue, Aug 11 - Tue, Aug 25

9:35 pm - 10:45 pm

STL

FRA

18h 10m

1 stop

10:55 am - 11:43 pm

FRA

STL

19h 48m

1 stop

$778Multiple Airlines

Wed, Aug 12 - Wed, Sep 16

6:13 pm - 6:50 pm

STL

FRA

17h 37m

2 stops

10:15 am - 10:29 pm

FRA

STL

19h 14m

1 stop

$782Multiple Airlines

Wed, Nov 4 - Wed, Nov 25

7:00 am - 7:15 am

STL

FRA

17h 15m

1 stop

10:15 am - 10:29 pm

FRA

STL

19h 14m

1 stop

$785Multiple Airlines

Wed, Nov 4 - Wed, Nov 25

7:00 am - 5:45 am

STL

FRA

15h 45m

1 stop

12:30 pm - 7:45 pm

FRA

STL

14h 15m

1 stop

$788Multiple Airlines

Mon, Sep 7 - Mon, Sep 21

12:45 pm - 8:45 am

STL

FRA

13h 00m

1 stop

10:40 am - 7:30 pm

FRA

STL

15h 50m

1 stop

$791Multiple Airlines

Sun, Aug 9 - Tue, Aug 25

7:00 am - 5:45 am

STL

FRA

15h 45m

1 stop

12:30 pm - 7:40 pm

FRA

STL

14h 10m

1 stop

$801Multiple Airlines

Mon, Aug 10 - Tue, Sep 15

9:40 pm - 9:20 am

STL

FRA

28h 40m

2 stops

7:20 pm - 8:26 pm

FRA

STL

32h 06m

2 stops

$804Finnair

Sun, Aug 9 - Tue, Aug 25

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

Our best Alaska Airlines deals on St. Louis to Frankfurt am Main Airport flight tickets

Alaska Airlines

Jul 3

STL7:56 pmLambert-St Louis

34h 24m

1 stop

FRA1:20 pmFrankfurt am Main

Jul 17

FRA2:40 pmFrankfurt am Main

16h 19m

1 stop

STL11:59 pmLambert-St Louis

$1,494

Alaska Airlines

Jun 30

STL6:02 amLambert-St Louis

24h 08m

1 stop

FRA1:10 pmFrankfurt am Main

Jul 15

FRA2:15 pmFrankfurt am Main

33h 22m

2 stops

STL4:37 pmLambert-St Louis

$1,506

Alaska Airlines

Jul 4

STL6:02 amLambert-St Louis

24h 18m

1 stop

FRA1:20 pmFrankfurt am Main

Jul 7

FRA11:45 amFrankfurt am Main

33h 07m

2 stops

STL1:52 pmLambert-St Louis

$1,545

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

Dec 2

STL8:41 amLambert-St Louis

24h 59m

2 stops

FRA4:40 pmFrankfurt am Main

Dec 5

FRA10:15 amFrankfurt am Main

16h 12m

1 stop

STL7:27 pmLambert-St Louis

$808

British Airways

Dec 2

STL9:30 amLambert-St Louis

14h 45m

1 stop

FRA7:15 amFrankfurt am Main

Dec 5

FRA10:15 amFrankfurt am Main

16h 12m

1 stop

STL7:27 pmLambert-St Louis

$830

British Airways

Aug 9

STL10:16 amLambert-St Louis

15h 29m

1 stop

FRA8:45 amFrankfurt am Main

Aug 25

FRA9:20 amFrankfurt am Main

14h 30m

1 stop

STL4:50 pmLambert-St Louis

$831

momondo Fare Finder

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

Cheapest round-trip

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Thu 9/17

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Thu 9/24

12:30 pm-7:45 pm

1 stop14h 15m

$764

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 8/9

9:40 pm-10:20 pm

1 stop17h 40m

Frankfurt am Main

Tue 8/25

6:30 am-7:27 pm

2 stops19h 57m

$767

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 8/11

9:35 pm-7:45 pm

1 stop15h 10m

Frankfurt am Main

Tue 8/25

6:30 am-7:27 pm

2 stops19h 57m

$774

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 8/12

9:35 pm-10:45 pm

1 stop18h 10m

Frankfurt am Main

Wed 9/16

10:55 am-11:43 pm

1 stop19h 48m

$778

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/4

6:13 pm-6:50 pm

2 stops17h 37m

Frankfurt am Main

Wed 11/25

10:15 am-10:29 pm

1 stop19h 14m

$782

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 11/4

7:00 am-7:15 am

1 stop17h 15m

Frankfurt am Main

Wed 11/25

10:15 am-10:29 pm

1 stop19h 14m

$785

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 9/7

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Mon 9/21

12:30 pm-7:45 pm

1 stop14h 15m

$788

Quickest round-trip

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 8/9

12:45 pm-8:45 am

1 stop13h 00m

Frankfurt am Main

Tue 8/25

10:40 am-7:30 pm

1 stop15h 50m

$791

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/10

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Tue 9/15

12:30 pm-7:40 pm

1 stop14h 10m

$801

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sun 8/9

9:40 pm-9:20 am

2 stops28h 40m

Frankfurt am Main

Tue 8/25

7:20 pm-8:26 pm

2 stops32h 06m

$804

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

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, March 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 $929. If you aren’t able to travel to Frankfurt am Main Airport during the month of March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,003.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,056. 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 $1,197. 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 from St. Louis 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 $1,227 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 $943 on momondo.

What cabin class options are available on St. Louis to Frankfurt am Main Airport flights?

There are 3 cabin classes available to choose from on St. Louis to Frankfurt am Main Airport 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 30% 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?

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	$479
Fastest flight time	8h 50m
Direct flights	Mon, Tue, Wed, Thu and Sat

The best one-way flight to Frankfurt am Main Airport from St. Louis in the past 72 hours is $479. The best round-trip flight deal from St. Louis to Frankfurt am Main Airport found on momondo in the last 72 hours is $1,009.

The fastest flight from St. Louis to Frankfurt am Main Airport takes 8h 50m

Direct flights go from St. Louis to Frankfurt am Main Airport on Monday, Tuesday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.

Search flight deals

Frequently asked questions about flying from St. Louis to Frankfurt am Main Airport

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 50m.
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?
There are 3 operators available for flights from Lambert-St Louis Airport to Frankfurt am Main Airport as of June 2026.
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?
Based on momondo bookings for flights between St. Louis and Frankfurt am Main Airport, the leading plane model is Airbus A330-300, making up 85.83% of the total bookings. Other popular models include Boeing 787-8 Dreamliner with 7.87%, Boeing 747-8 with 3.15%, and Boeing 787-10 Dreamliner with 1.57%.
What is the most popular airline from St. Louis to Frankfurt am Main Airport?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Frankfurt am Main Airport is Lufthansa, representing 63% of all bookings. The subsequent popular airlines are United Airlines at 30% and British Airways at 7%.

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
British Airways	PriceFrom $470	Free Cancellation	Rating 6.7 8,062 reviews	Search British Airways flights
United Airlines	PriceFrom $693	Free Cancellation	Rating 7.4 9,868 reviews	Search United Airlines flights
Lufthansa	PriceFrom $830	Free Cancellation	Rating 6.8 8,086 reviews	Search Lufthansa flights

United Airlines Flights From St. Louis to Frankfurt am Main Airport
United Airlines flies from St. Louis to Frankfurt am Main Airport around 5 times per week, with 9,868 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 $693 (round-trip), much lower than the average airfare cost of $1,225 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, 8,086 ratings). Lufthansa flies from St. Louis to Frankfurt am Main Airport around 5 times per week, with deals starting from $830 round-trip and rising to an average price of around $1,330.

Heidelberg

Baden-Baden

Wurzburg

Koblenz

Mainz

Darmstadt

Trier

Rothenburg ob der Tauber

Kaiserslautern

Fulda

Aschaffenburg

Wiesbaden

Heilbronn

Cochem

Marburg

Ludwigsburg

Rüdesheim am Rhein

Nuerburg

Hofheim

Bernkastel-Kues

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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Flights to Frankfurt-Hahn Airportfrom $569

Cheap flights from St. Louis to Frankfurt am Main from $311

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 8/3. 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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Alaska Airlines flights from St. Louis to Frankfurt am Main Airport

Our best Alaska Airlines deals on St. Louis to Frankfurt am Main Airport flight tickets

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

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Frankfurt am Main Airport that are best for you.

See travel insights to Frankfurt am Main from

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

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?

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

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

How far in advance should I book a flight from St. Louis to Frankfurt am Main Airport?

What cabin class options are available on St. Louis to Frankfurt am Main Airport flights?

Can stopping save me money on St. Louis to Frankfurt am Main Airport flights?

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

What is the cheapest airline that flies from Lambert-St Louis to Frankfurt am Main?

What airlines fly to Frankfurt am Main Airport?

Which airport is the most popular layover for flights between St. Louis and Frankfurt am Main Airport?

Which layover airport offers the lowest fares from St. Louis to Frankfurt am Main Airport?

Which layover airport has the shortest travel time from St. Louis to Frankfurt am Main Airport?

Which layover airport has the shortest connection time from St. Louis to Frankfurt am Main Airport?

How many flights depart from St. Louis to Frankfurt am Main Airport on average per day?

How many flights depart from St. Louis to Frankfurt am Main Airport on average per week?

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

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

Fastest flight time

Direct flights

Frequently asked questions about flying 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

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

Lufthansa Flights From St. Louis to Frankfurt am Main Airport

Traveling to a place near Frankfurt am Main?

Why use momondo?

An easier way to manage your Frankfurt am Main Airport 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.

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List of cabin classes available on flights landing in Frankfurt am Main. Availability may vary depending on flight origin and airline.

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