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Cheap flights from St. Louis to Frankfurt am Main from $439

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 9/13. 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
1 adult, Economy, 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.
Multiple Airlines Logo
3:42 pm - 2:35 pm
STL
-
FRA
15h 53m
2 stops
Multiple Airlines Logo
8:10 am - 11:37 pm
FRA
-
STL
22h 27m
2 stops
$881Multiple Airlines
Mon, Aug 24 - Mon, Sep 7
Multiple Airlines Logo
10:25 am - 5:45 am
STL
-
FRA
12h 20m
1 stop
Multiple Airlines Logo
12:30 pm - 7:40 pm
FRA
-
STL
14h 10m
1 stop
$900Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Scandinavian Airlines Logo
1:30 pm - 2:35 pm
STL
-
FRA
18h 05m
2 stops
Scandinavian Airlines Logo
3:20 pm - 11:37 pm
FRA
-
STL
39h 17m
2 stops
$945Scandinavian Airlines
Sat, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
10:25 am - 5:45 am
STL
-
FRA
12h 20m
1 stop
Multiple Airlines Logo
12:30 pm - 7:45 pm
FRA
-
STL
14h 15m
1 stop
$961Multiple Airlines
Wed, Sep 2 - Mon, Sep 7
Multiple Airlines Logo
11:40 am - 5:45 am
STL
-
FRA
11h 05m
1 stop
Multiple Airlines Logo
12:30 pm - 7:40 pm
FRA
-
STL
14h 10m
1 stop
$962Multiple Airlines
Sat, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
10:15 am - 5:45 am
STL
-
FRA
12h 30m
1 stop
Multiple Airlines Logo
12:30 pm - 8:30 pm
FRA
-
STL
15h 00m
1 stop
$992Multiple Airlines
Tue, May 19 - Tue, Jun 16
Scandinavian Airlines Logo
3:42 pm - 2:35 pm
STL
-
FRA
15h 53m
2 stops
Scandinavian Airlines Logo
7:00 am - 11:37 pm
FRA
-
STL
23h 37m
3 stops
$1,000Scandinavian Airlines
Mon, Aug 24 - Mon, Sep 7
Scandinavian Airlines Logo
3:42 pm - 7:45 pm
STL
-
FRA
21h 03m
2 stops
Scandinavian Airlines Logo
7:00 am - 11:37 pm
FRA
-
STL
23h 37m
3 stops
$1,001Scandinavian Airlines
Mon, Aug 24 - Mon, Sep 7
Multiple Airlines Logo
7:00 am - 5:45 am
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 pm - 7:45 pm
FRA
-
STL
14h 15m
1 stop
$1,022Multiple Airlines
Mon, Aug 24 - Mon, Sep 7
Multiple Airlines Logo
7:00 am - 5:45 am
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 pm - 7:45 pm
FRA
-
STL
14h 15m
1 stop
$1,023Multiple Airlines
Mon, Aug 24 - Mon, Sep 7

Scandinavian Airlines flights from St. Louis to Frankfurt am Main

Our best Scandinavian Airlines deals on St. Louis to Frankfurt am Main flight tickets
Scandinavian Airlines
Sep 5
STL1:30 pmLambert-St Louis
18h 05m
2 stops
FRA2:35 pmFrankfurt am Main
Sep 9
FRA3:20 pmFrankfurt am Main
39h 17m
2 stops
STL11:37 pmLambert-St Louis
$945
Scandinavian Airlines
Aug 24
STL3:42 pmLambert-St Louis
15h 53m
2 stops
FRA2:35 pmFrankfurt am Main
Sep 7
FRA7:00 amFrankfurt am Main
23h 37m
3 stops
STL11:37 pmLambert-St Louis
$1,000
Scandinavian Airlines
Aug 24
STL3:42 pmLambert-St Louis
21h 03m
2 stops
FRA7:45 pmFrankfurt am Main
Sep 7
FRA7:00 amFrankfurt am Main
23h 37m
3 stops
STL11:37 pmLambert-St Louis
$1,001

Turkish Airlines flights from St. Louis to Frankfurt am Main

Our best Turkish Airlines deals on St. Louis to Frankfurt am Main flight tickets
Turkish Airlines
Apr 18
STL7:45 amLambert-St Louis
46h 55m
2 stops
FRA1:40 pmFrankfurt am Main
Apr 23
FRA6:50 amFrankfurt am Main
45h 23m
2 stops
STL9:13 pmLambert-St Louis
$1,036
Turkish Airlines
Apr 15
STL7:45 amLambert-St Louis
46h 55m
2 stops
FRA1:40 pmFrankfurt am Main
Apr 29
FRA6:50 amFrankfurt am Main
21h 23m
2 stops
STL9:13 pmLambert-St Louis
$1,038
Turkish Airlines
Apr 20
STL7:45 amLambert-St Louis
46h 55m
2 stops
FRA1:40 pmFrankfurt am Main
Apr 30
FRA6:50 amFrankfurt am Main
45h 23m
2 stops
STL9:13 pmLambert-St Louis
$1,044

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Frankfurt am Main 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 March 24, 2026.
Use the filters below to find and compare flights from St. Louis to Frankfurt am Main 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

Mon 8/24

3:42 pm-2:35 pm

2 stops15h 53m

Frankfurt am Main

Mon 9/7

8:10 am-11:37 pm

2 stops22h 27m

$881

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 9/8

10:25 am-5:45 am

1 stop12h 20m

Frankfurt am Main

Tue 9/15

12:30 pm-7:40 pm

1 stop14h 10m

$900

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 9/5

1:30 pm-2:35 pm

2 stops18h 05m

Frankfurt am Main

Wed 9/9

3:20 pm-11:37 pm

2 stops39h 17m

$945

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Wed 9/2

10:25 am-5:45 am

1 stop12h 20m

Frankfurt am Main

Mon 9/7

12:30 pm-7:45 pm

1 stop14h 15m

$961
Quickest round-trip

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Sat 9/5

11:40 am-5:45 am

1 stop11h 05m

Frankfurt am Main

Wed 9/9

12:30 pm-7:40 pm

1 stop14h 10m

$962

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Tue 5/19

10:15 am-5:45 am

1 stop12h 30m

Frankfurt am Main

Tue 6/16

12:30 pm-8:30 pm

1 stop15h 00m

$992

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/24

3:42 pm-2:35 pm

2 stops15h 53m

Frankfurt am Main

Mon 9/7

7:00 am-11:37 pm

3 stops23h 37m

$1,000

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/24

3:42 pm-7:45 pm

2 stops21h 03m

Frankfurt am Main

Mon 9/7

7:00 am-11:37 pm

3 stops23h 37m

$1,001

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/24

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Mon 9/7

12:30 pm-7:45 pm

1 stop14h 15m

$1,022

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

Mon 8/24

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Mon 9/7

12:30 pm-7:45 pm

1 stop14h 15m

$1,023

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

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?

In general, March is the cheapest month to fly from St. Louis to Frankfurt am Main. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $924. If you’re not able to fly to Frankfurt am Main in March, then January is your next best option. Flight prices from St. Louis to Frankfurt am Main during January average around $940.

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

The cheapest day to depart on your flight to Frankfurt am Main is on a Tuesday when prices can be found for as low as $975. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,209.

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?

You are more likely to see cheaper flights to Frankfurt am Main from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Frankfurt am Main for around $1,160 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Frankfurt am Main from St. Louis for as low as $952 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.

Cheap St. Louis to Frankfurt am Main flight deals and tips

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

Fastest flight time

8h 40m

Direct flights

Mon, Tue, Wed, Thu and Sat

Airports in Frankfurt am Main

2 airports
The fastest flight from St. Louis to Frankfurt am Main takes 8h 40m
Direct flights go from St. Louis to Frankfurt am Main on Monday, Tuesday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.
There are 2 airports in Frankfurt am Main. From St. Louis there are direct flights to Frankfurt am Main (FRA).
Search flight deals

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

    Frankfurt am Main is 4579.0 mi away from Lambert-St Louis. Typically, this will take 8h 40m by plane in normal conditions.

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

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

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

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

    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 Lambert-St Louis Airport to Frankfurt am Main.

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

    The travel and health documents you'll need for your trip to Frankfurt am Main 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Frankfurt am Main

Compare and see reviews for airlines that fly from St. Louis to Frankfurt am Main with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $390Free CancellationRating
7.1
11,493 reviews
Search American Airlines flights
British AirwaysPriceFrom $470Free CancellationRating
6.7
7,818 reviews
Search British Airways flights
DeltaPriceFrom $610Free CancellationRating
7.9
8,326 reviews
Search Delta flights
KLMPriceFrom $723Free CancellationRating
7.8
1,477 reviews
Search KLM flights
United AirlinesPriceFrom $739Free CancellationRating
7.4
9,476 reviews
Search United Airlines flights
LufthansaPriceFrom $816Free CancellationRating
6.8
7,867 reviews
Search Lufthansa flights
Air CanadaPriceFrom $916Free CancellationRating
7.1
10,837 reviews
Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Frankfurt am Main. momondo saves you time and could save you money on your trip.

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?

Once all potential St. Louis to Frankfurt am Main flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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 not ready to book a flight from St. Louis to Frankfurt am Main now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Frankfurt am Main and let you know when they change.

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Find better results for your trip to Germany

Fly into one of these airports located in Frankfurt am Main

Airports listed have a maximum distance of 63.9 mi from Frankfurt am Main
Frankfurt am Main Airport
Frankfurt-Hahn Airport