FRA - STL

$515 Find Cheap Flights from Frankfurt am Main to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Frankfurt am Main to St. Louis departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Frankfurt am Main to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Frankfurt am Main to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$773
Typical prices: $970-$610
Air Canada
Mon 6/8Mon 6/15
FRA - STL • 1 stop
Cheapest non-stop
$785
Typical prices: $955-$715
Lufthansa
Tue 10/13Sun 11/22
FRA - STL • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa offers three-course meals in Economy.
Expect long queues at Frankfurt's check-in and security.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Mon, Tue, Wed, Fri, Sun
You can fly direct with Lufthansa. Average duration is 9h 45m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
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Top airlines
Cheapest • from $785 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $716 (round-trip)
Shortest trip • 12h 43m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Frankfurt am Main to St. Louis (FRA-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Frankfurt am Main to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Frankfurt am Main to St. Louis

Mon, Jun 8 - Mon, Jun 15
Air Canada Logo
9:55 am - 8:25 pm
FRA
-
STL
17h 30m
1 stop
Air Canada Logo
1:05 pm - 7:10 am
STL
-
FRA
11h 05m
1 stop
$773Air Canada
Mon, Jun 8 - Mon, Jun 15
Air Canada Logo
10:00 am - 8:25 pm
FRA
-
STL
17h 25m
2 stops
Air Canada Logo
1:05 pm - 7:10 am
STL
-
FRA
11h 05m
1 stop
$783Air Canada
Wed, Jun 10 - Thu, Jun 25
British Airways Logo
9:20 am - 11:44 pm
FRA
-
STL
21h 24m
1 stop
British Airways Logo
9:42 am - 8:45 am
STL
-
FRA
16h 03m
1 stop
$785British Airways
Sun, May 17 - Tue, Jun 2
Virgin Atlantic Logo
10:40 am - 9:38 pm
FRA
-
STL
17h 58m
1 stop
Virgin Atlantic Logo
1:27 pm - 8:55 am
STL
-
FRA
12h 28m
1 stop
$786Virgin Atlantic
Tue, Oct 13 - Sun, Nov 22
Lufthansa Logo
8:45 pm - 3:38 pm
FRA
-
STL
25h 53m
2 stops
Lufthansa Logo
3:50 pm - 7:30 am
STL
-
FRA
8h 40mnonstop
$787Lufthansa
Fri, Oct 16 - Sat, Oct 24
British Airways Logo
10:35 am - 7:30 pm
FRA
-
STL
15h 55m
1 stop
British Airways Logo
8:05 pm - 6:20 pm
STL
-
FRA
16h 15m
2 stops
$788British Airways
Mon, Oct 12 - Wed, Dec 2
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
11:45 am - 9:10 am
STL
-
FRA
14h 25m
1 stop
$789Lufthansa
Sun, May 17 - Tue, Jun 2
Air Canada Logo
2:00 pm - 12:06 pm
FRA
-
STL
29h 06m
1 stop
Air Canada Logo
2:15 pm - 8:00 am
STL
-
FRA
10h 45m
1 stop
$790Air Canada
Mon, Oct 12 - Thu, Nov 26
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
6:45 pm - 6:05 pm
STL
-
FRA
16h 20m
2 stops
$791Lufthansa
Mon, Oct 12 - Thu, Nov 26
Lufthansa Logo
8:45 pm - 3:38 pm
FRA
-
STL
25h 53m
2 stops
Lufthansa Logo
6:45 pm - 6:05 pm
STL
-
FRA
16h 20m
2 stops
$793Lufthansa
Booking Insights

KAYAK's insights & trends for Frankfurt am Main to St. Louis flights

Get data-powered insights and trends into flights from Frankfurt am Main to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Frankfurt am Main Airport to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Frankfurt am Main Airport to St. Louis departing in June.

What’s the cheapest day of the week to fly from Frankfurt am Main to St. Louis?

The average price of all round-trip flights from Frankfurt am Main Airport to St. Louis clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Frankfurt am Main to St. Louis, look for departures on Fridays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from St. Louis, Tuesday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Frankfurt am Main Airport to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Frankfurt am Main Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Frankfurt am Main Airport to St. Louis is February, where tickets cost $705 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $1,267 and $1,011 respectively.

Can I save money by flying with a layover from Frankfurt am Main Airport to St. Louis?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $903 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Frankfurt am Main Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Frankfurt am Main Airport to St. Louis, you should book around 3 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Frankfurt am Main to St. Louis

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on FRA

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Low seasonFebruary
Cheapest flight$515
Best time to beat the crowds with an average 17% drop in price.
Flight from Frankfurt am Main to St. Louis

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

Are your dates flexible? Find out the best times to travel from Frankfurt am Main to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Frankfurt am Main to St. Louis flights

  • What is the cheapest flight from Frankfurt am Main Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from Frankfurt am Main Airport to St. Louis was $515 for a one-way ticket and $785 for a round-trip.

  • Do I need a passport to fly between Frankfurt am Main and St. Louis?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Frankfurt am Main and on arrival in St. Louis.

  • Which airports will I be using when flying from Frankfurt am Main to St. Louis?

    On your way to St. Louis, you’ll fly out from Frankfurt am Main. You’ll be landing at Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Frankfurt am Main to St. Louis?

    Lufthansa, and United Airlines offer inflight Wi-Fi service on the Frankfurt am Main to St. Louis flight route.

  • Which aircraft models fly most regularly from Frankfurt am Main to St. Louis?

    The Airbus A330-300 is the aircraft model that flies most regularly on the Frankfurt am Main to St. Louis flight route.

  • Which airline alliances offer flights from Frankfurt am Main to St. Louis?

    Star Alliance is the only airline alliance operating flights between Frankfurt am Main and St. Louis.

  • On which days can I fly direct from Frankfurt am Main to St. Louis?

    You can catch a nonstop flight from Frankfurt am Main to St. Louis on Monday, Tuesday, Wednesday, Friday, and Sunday.

  • Which is the best airline for flights from Frankfurt am Main to St. Louis, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Frankfurt am Main to St. Louis are United Airlines and Lufthansa. With an average price for the route of $920 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,004 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Frankfurt am Main to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Frankfurt am Main to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Frankfurt am Main to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Frankfurt am Main is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Frankfurt am Main to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Frankfurt am Main with another airline. Booking your flights between Frankfurt am Main and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Frankfurt am Main to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Frankfurt am Main up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Frankfurt am Main to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Frankfurt am Main to Lambert-St Louis.
Find which airlines fly direct from Frankfurt am Main Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Frankfurt am Main to Lambert-St Louis

Monday

Lufthansa

Lufthansa

Tuesday

Lufthansa

Lufthansa

Wednesday

Lufthansa

Lufthansa

Friday

Lufthansa

Lufthansa

Sunday

Lufthansa

Lufthansa

See more direct flights

Direct returns

Lambert-St Louis to Frankfurt am Main

Monday

Lufthansa

Lufthansa

Tuesday

Lufthansa

Lufthansa

Wednesday

Lufthansa

Lufthansa

Friday

Lufthansa

Lufthansa

Sunday

Lufthansa

Lufthansa

See more direct flights

Reviews of the top airlines flying from Frankfurt am Main to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Frankfurt am Main to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Frankfurt am Main to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9680 reviews
7.3Comfort
7.1Entertainment
8.1Crew
6.6Food
7.7Boarding
Airline reviews

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

10.0 ExcellentDenise and Scott, Apr 2026
MUC - IAD
Read more United Airlines reviews

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Business class would have been better , poor quality blanket , services

Meals were poor and service rendered on return flight was mediocre as compared to the flight we took to Germany earlier where the attendants were more attentive, energetic, and mindful of passengers' needs. Thumbs up to crew of UA 58. Thumbs down to UA 59..

The crew was generally professional. Though one of the crew members seemed to be easily annoyed, the others were fine and helpful. The green olives and almonds snack was really good. A great idea, and nice balance of tastes.

We got to get extended leg room in Econ plus that was great. It was nice having our own dietary needs met with our meals, and the connecting flights had it as well. Only negative were the seats my bottom was/is really sore after a ten plus hour flight. Those seats are horrible, understandable for as many people use them. So we are going to purchase a gel seat pad.

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

Poor. Crew allowed children to run around and scream and disturb passanger’s seats.

Airport terminal was outdated, flight was on a small jet with no wifi

Nothing also dont give to people that disgusting blanket and pilow.

My flight was cancelled, but it was not Kayak's fault. Kayak did require me to pay for the ticket twice to two different venders who paid Lufthansa. Kayak/Lufthansa owes me for the first booking I made first was fraudulent on the part of the subcontracting ticket seller. There will be litigation over this issue under the current passenger protection laws.

flight was half full, plenty of empty seats, was able to lie down across 4 seats, food was good, arrived on time

Generally good. Not their fault but the design of the Boeing 747 had seating supports directly in line with my legs. So my legs always had to straddle this support which caused body misallignment. Such poor design from Boeing. There was no USB port for me to charge my phone. The screen touch control was very poor.

I like crew. They are friendly. The flight was delayed to take off for 1hr and that caused panic at Houston Airport to catch connecting flight due to security check delay. If it has reached on time I would have sufficient time in collecting bags and security check

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

It was good. The seats in economy weren’t bad

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

Everything you need to know for your flight from Frankfurt am Main to St. Louis

Information on your arrival and departure airports