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Cheap flights from St. Louis to Frankfurt am Main from $338

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 10/19. 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

Discover deals from 900+ travel sites with momondo.

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
7:00 am - 5:45 amSTL  Lambert-St Louis-FRA Frankfurt am Main
15h 45m1 stop Boston Logan Intl
Multiple Airlines Logo
12:30 pm - 7:45 pmFRA  Frankfurt am Main-STL Lambert-St Louis
14h 15m1 stop Boston Logan Intl
$786Multiple Airlines
Mon, Sep 7 - Thu, Sep 10
Multiple Airlines Logo
7:00 am - 5:45 amSTL  Lambert-St Louis-FRA Frankfurt am Main
15h 45m1 stop Boston Logan Intl
Multiple Airlines Logo
12:30 pm - 7:45 pmFRA  Frankfurt am Main-STL Lambert-St Louis
14h 15m1 stop Boston Logan Intl
$800Multiple Airlines
Mon, Aug 24 - Mon, Aug 31
Multiple Airlines Logo
11:40 am - 5:45 amSTL  Lambert-St Louis-FRA Frankfurt am Main
11h 05m1 stop Boston Logan Intl
Multiple Airlines Logo
12:30 pm - 7:45 pmFRA  Frankfurt am Main-STL Lambert-St Louis
14h 15m1 stop Boston Logan Intl
$833Multiple Airlines
Sat, Aug 22 - Thu, Aug 27
Lufthansa Logo
3:40 pm - 7:30 amSTL  Lambert-St Louis-FRA Frankfurt am Main
8h 50mnonstop
Lufthansa Logo
10:45 am - 1:45 pmFRA  Frankfurt am Main-STL Lambert-St Louis
10h 00mnonstop
$844Lufthansa
Sun, Dec 6 - Wed, Dec 16
Lufthansa Logo
3:40 pm - 7:30 amSTL  Lambert-St Louis-FRA Frankfurt am Main
8h 50mnonstop
Lufthansa Logo
10:45 am - 1:45 pmFRA  Frankfurt am Main-STL Lambert-St Louis
10h 00mnonstop
$846Lufthansa
Wed, Jan 13 - Wed, Jan 20
Lufthansa Logo
7:04 pm - 1:45 pmSTL  Lambert-St Louis-FRA Frankfurt am Main
11h 41m1 stop Chicago O'Hare Intl
Lufthansa Logo
10:45 am - 1:45 pmFRA  Frankfurt am Main-STL Lambert-St Louis
10h 00mnonstop
$850Lufthansa
Wed, Jan 13 - Wed, Jan 20
British Airways Logo
5:04 pm - 4:40 pmSTL  Lambert-St Louis-FRA Frankfurt am Main
16h 36m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
10:15 am - 7:29 pmFRA  Frankfurt am Main-STL Lambert-St Louis
16h 14m1 stop Dallas/Fort Worth
$856British Airways
Wed, Jan 13 - Wed, Jan 20
United Airlines Logo
1:08 pm - 9:35 amSTL  Lambert-St Louis-FRA Frankfurt am Main
13h 27m1 stop Chicago O'Hare Intl
United Airlines Logo
9:45 am - 12:40 pmFRA  Frankfurt am Main-STL Lambert-St Louis
33h 55m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$865United Airlines
Wed, Dec 2 - Wed, Jan 13
United Airlines Logo
7:33 am - 9:35 amSTL  Lambert-St Louis-FRA Frankfurt am Main
19h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
5:10 pm - 2:30 pmFRA  Frankfurt am Main-STL Lambert-St Louis
28h 20m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$870United Airlines
Tue, Dec 8 - Tue, Dec 15
British Airways Logo
12:01 pm - 10:25 amSTL  Lambert-St Louis-FRA Frankfurt am Main
15h 24m2 stops Boston Logan Intl London Heathrow
British Airways Logo
10:50 am - 6:08 pmFRA  Frankfurt am Main-STL Lambert-St Louis
14h 18m1 stop Charlotte Douglas
$905British Airways
Mon, Feb 1 - Sun, Feb 28

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Lufthansa flights from St. Louis to Frankfurt am Main

Our best Lufthansa deals on St. Louis to Frankfurt am Main flight tickets
Lufthansa
Dec 6
STL3:40 pmLambert-St Louis
8h 50m
FRA7:30 amFrankfurt am Main
Dec 16
FRA10:45 amFrankfurt am Main
10h 00m
STL1:45 pmLambert-St Louis
$844
Lufthansa
Jan 13
STL3:40 pmLambert-St Louis
8h 50m
FRA7:30 amFrankfurt am Main
Jan 20
FRA10:45 amFrankfurt am Main
10h 00m
STL1:45 pmLambert-St Louis
$846
Lufthansa
Jan 13
STL7:04 pmLambert-St Louis
11h 41m
1 stop
FRA1:45 pmFrankfurt am Main
Jan 20
FRA10:45 amFrankfurt am Main
10h 00m
STL1:45 pmLambert-St Louis
$850

United Airlines flights from St. Louis to Frankfurt am Main

Our best United Airlines deals on St. Louis to Frankfurt am Main flight tickets
United Airlines
Dec 2
STL1:08 pmLambert-St Louis
13h 27m
1 stop
FRA9:35 amFrankfurt am Main
Jan 13
FRA9:45 amFrankfurt am Main
33h 55m
2 stops
STL12:40 pmLambert-St Louis
$865
United Airlines
Dec 8
STL7:33 amLambert-St Louis
19h 02m
1 stop
FRA9:35 amFrankfurt am Main
Dec 15
FRA5:10 pmFrankfurt am Main
28h 20m
2 stops
STL2:30 pmLambert-St Louis
$870
United Airlines
Dec 6
STL5:34 pmLambert-St Louis
30h 01m
1 stop
FRA6:35 amFrankfurt am Main
Dec 17
FRA5:10 pmFrankfurt am Main
29h 16m
1 stop
STL3:26 pmLambert-St Louis
$871

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 August 10, 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 Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Mon 9/7

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Thu 9/10

12:30 pm-7:45 pm

1 stop14h 15m

$786

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Mon 8/24

7:00 am-5:45 am

1 stop15h 45m

Frankfurt am Main

Mon 8/31

12:30 pm-7:45 pm

1 stop14h 15m

$800

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Sat 8/22

11:40 am-5:45 am

1 stop11h 05m

Frankfurt am Main

Thu 8/27

12:30 pm-7:45 pm

1 stop14h 15m

$833
Quickest round-trip

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Sun 12/6

3:40 pm-7:30 am

Nonstop8h 50m

Frankfurt am Main

Wed 12/16

10:45 am-1:45 pm

Nonstop10h 00m

$844

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Wed 1/13

3:40 pm-7:30 am

Nonstop8h 50m

Frankfurt am Main

Wed 1/20

10:45 am-1:45 pm

Nonstop10h 00m

$846

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Wed 1/13

7:04 pm-1:45 pm

1 stop11h 41m

Frankfurt am Main

Wed 1/20

10:45 am-1:45 pm

Nonstop10h 00m

$850

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Wed 1/13

5:04 pm-4:40 pm

2 stops16h 36m

Frankfurt am Main

Wed 1/20

10:15 am-7:29 pm

1 stop16h 14m

$856

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Wed 12/2

1:08 pm-9:35 am

1 stop13h 27m

Frankfurt am Main

Wed 1/13

9:45 am-12:40 pm

2 stops33h 55m

$865

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Tue 12/8

7:33 am-9:35 am

1 stop19h 02m

Frankfurt am Main

Tue 12/15

5:10 pm-2:30 pm

2 stops28h 20m

$870

St. LouisFrankfurt am Main

STL Lambert-St Louis - FRA Frankfurt am Main

STLFRA

Lambert-St Louis

Mon 2/1

12:01 pm-10:25 am

2 stops15h 24m

Frankfurt am Main

Sun 2/28

10:50 am-6:08 pm

1 stop14h 18m

$905

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 typical price of a round-trip flight between St. Louis and Frankfurt am Main?

Prices are currently low for flights on this route.

Typical prices usually range from $1,181 to $1,489.
The lowest price recently found on this route was $786.

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 $929. 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 $1,074.

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 Wednesday when prices can be found for as low as $1,061. 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 $1,197.

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?

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 $1,246 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 $859 on momondo.

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

There are 3 cabin classes available to choose from on 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 50m

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 50m
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

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

  • 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 50m 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
British AirwaysPriceFrom $410Free CancellationRating
6.7
8,151 reviews
Search British Airways flights
United AirlinesPriceFrom $693Free CancellationRating
7.4
10,093 reviews
Search United Airlines flights
LufthansaPriceFrom $852Free CancellationRating
6.8
8,176 reviews
Search Lufthansa 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