STL - FRA

329€ Find Cheap Flights from St. Louis to Frankfurt am Main

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Frankfurt departing on 13.07.. 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 Frankfurt am Main Airport

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

Cheapest return fare
601 €
Typical prices: 1.181 €-774 €
Multiple Airlines
Thu 10.9.Tue 15.9.
STL - FRA • 1 stop
Cheapest direct flights
862 €
Typical prices: 1.196 €-649 €
Lufthansa
Mon 19.10.Fri 13.11.
STL - FRA • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa Premium Economy adds more space and an extra checked bag.
United Premium Plus adds legroom; Lufthansa offers special meals.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
Mon, Tue, Wed, Fri, Sun
You can fly direct with Lufthansa. Average duration is 8h 55m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from 741 € (return)
Best reviews • 7,4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
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Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Frankfurt am Main 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 return flight deals from St. Louis to Frankfurt

Thu, 10. Sep - Tue, 15. Sep
Multiple Airlines Logo
7:00 - 5:45
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 - 19:40
FRA
-
STL
14h 10m
1 stop
601 €Multiple Airlines
Fri, 28. Aug - Fri, 4. Sep
Multiple Airlines Logo
7:00 - 5:45
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
620 €Multiple Airlines
Thu, 17. Sep - Thu, 24. Sep
Multiple Airlines Logo
7:00 - 5:45
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
620 €Multiple Airlines
Mon, 24. Aug - Mon, 14. Sep
Multiple Airlines Logo
7:00 - 5:45
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
639 €Multiple Airlines
Wed, 9. Sep - Tue, 15. Sep
Multiple Airlines Logo
10:25 - 5:45
STL
-
FRA
12h 20m
1 stop
Multiple Airlines Logo
12:30 - 19:40
FRA
-
STL
14h 10m
1 stop
659 €Multiple Airlines
Mon, 14. Sep - Mon, 21. Sep
Multiple Airlines Logo
7:00 - 5:45
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
660 €Multiple Airlines
Sat, 22. Aug - Fri, 28. Aug
Multiple Airlines Logo
11:40 - 5:45
STL
-
FRA
11h 05m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
671 €Multiple Airlines
Wed, 26. Aug - Fri, 11. Sep
Multiple Airlines Logo
10:25 - 5:45
STL
-
FRA
12h 20m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
673 €Multiple Airlines
Wed, 9. Sep - Thu, 17. Sep
Multiple Airlines Logo
10:25 - 5:45
STL
-
FRA
12h 20m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
699 €Multiple Airlines
Thu, 10. Sep - Mon, 14. Sep
Multiple Airlines Logo
7:00 - 5:45
STL
-
FRA
15h 45m
1 stop
Multiple Airlines Logo
12:30 - 19:45
FRA
-
STL
14h 15m
1 stop
700 €Multiple Airlines
Booking Insights

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

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

How much is a return flight from St. Louis to Frankfurt am Main Airport?

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

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

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

For St. Louis to Frankfurt am Main, Sunday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Frankfurt am Main back to St. Louis, the best deals are generally found on Sunday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Frankfurt am Main Airport, 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 St. Louis to Frankfurt am Main Airport is March, where tickets cost 805 € (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is 1.519 € and 1.307 € respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at 905 € on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Frankfurt am Main Airport, 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 St. Louis to Frankfurt am Main Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to Frankfurt

 
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.

Good to know - Cheap tickets from St. Louis to Frankfurt am Main

Low seasonJanuary
Cheapest flight329 €
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from St. Louis to Frankfurt am Main

When to book flights from St. Louis to Frankfurt

Are your dates flexible? Find out the best times to travel from St. Louis to Frankfurt based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 St. Louis to Frankfurt am Main flights

  • Can I request special seating based on my needs?

    American Airlines does its best to secure appropriate spots for special needs passengers who require service animals on board, have immobile legs, cannot move over fixed armrests, or those with medical assistants. Plan your seating reservations when booking a flight to secure two adjacent seats for the same price.

  • If my flight has two stopovers, can I upgrade for each segment?

    To upgrade with Air Canada, you can bid on it. Suppose your flight takes the STL-ORD-YYZ-FRA route. Upgrade each segment individually with a different cabin class, e.g., STL-ORD in Economy class, ORD-YYZ in Premium Economy, and YYZ-FRA in Business cabin. Once they accept your bid, you'll receive an email notification 48 hours before departure. Alternatively, upgrade through the 'Instant Upgrade,' which will be confirmed in the next two hours following your request.

  • How will a Premium Economy upgrade enhance my flight experience from St. Louis to Frankfurt am Main?

    Finnair's Premium Economy seat comes with a 38" pitch – 7" longer than the Standard Economy seat (31") – memory foam cushions, a six-way headrest, and a leg rest. Unlike the Economy cabin with a 3-3-3 layout and 6" recline; the Premium Economy cabin features a 2-4-2 seat arrangement and 8" recline. Instead of a 12" screen entertainment, you'll be looking at a 13" screen display. Also, sample a three-course meal served on chinaware and complimentary drinks.

  • Which airline offers an economy cabin with family-friendly features?

    British Airways World Traveler is a family-oriented economy class offering comfort at a reasonable price and no hidden fees. The stylish interior cabin has flat screens, headphones for everyone, children's games, and parental-lock TV. Enjoy a starter menu, main course, dessert, special kids' meals, mid-flight snacks, and hot and cold drinks. Families with infants and small kids enjoy priority boarding.

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

    In the last 3 days, the lowest price for a flight from St. Louis to Frankfurt am Main Airport was 329 € for a one-way ticket and 601 € for a return.

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

    St. Louis and Frankfurt am Main are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Frankfurt am Main.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Frankfurt am Main are Lufthansa and United Airlines. With an average price for the route of 1.003 € and an overall rating of 6,8, Lufthansa is the most popular choice. United Airlines is also a great choice for the route, with an average price of 768 € and an overall rating of 7,4.

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

    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 St. Louis to Frankfurt am Main.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Frankfurt am Main with an airline and back to St. Louis with another airline.

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

    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 Frankfurt am Main from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Frankfurt am Main Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for 1.028 € or less round-trip.
  • A flight with Air Canada from St. Louis Lambert International Airport (STL) to Frankfurt Airport (FRA) stops at Toronto Pearson Airport (YYZ). Some of their flights connect via Chicago O'Hare International Airport (ORD) and YYZ. Dallas/Fort Worth Airport (DFW) is also a common stopover for British Airways and Finnair flights.
  • Reserve a lap infant seat or a seat for your baby while booking a United Airlines flight. Choose a separate seat for your baby (below two years) and pay for the partial fare if there's a discount. Ensure your child's restraint device is FAA-approved and have their birth certificate to prove their age. Belly belts, harnesses, and booster seats are unacceptable.
  • On route STL-DFW-FRA with British Airways, you may relax at Club DFW Lounge in Terminal D on the airside (Mezzanine Floor next to Gate 27) for three hours. Use the Sky Link entry to avoid queuing at the security checkpoint twice. You'll have automatic access when flying on British Airways Club World and Club Europe (business class), First Class, or with Gold or Silver Executive Club memberships.
  • Iberia Airlines considers luggage bulk if it exceeds 62 inches (LxWxH) or between 50 and 70 lbs. Musical instruments up to 70 lbs are transported for free but heavier ones attract an extra fee. The economy cabin carry-on and checked luggage limits are 22 lbs and 70 lbs, respectively.
  • Travel with your dog or cat on a Lufthansa flight from STL-FRA. Assistant dogs travel for free, while any fighting animal must be caged in special crates and travel in the cargo hold. Book under-seat cabin space for a small cat or dog (max 17 lbs, including the carrier). Register your pet earlier than 72 hours before the flight.

Prefer to fly direct from Lambert-St Louis to Frankfurt am Main?

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

Direct departures

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

Direct returns

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

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

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Frankfurt am Main. 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 St. Louis to Frankfurt? 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 9818 reviews
7,1Entertainment
7,3Comfort
6,6Food
8,1Crew
7,7Boarding
Airline reviews

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

2,0 MediocreGray, Jun 2026
SFO - FRA
Read more United Airlines reviews

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

Check in was chaotic with only one counter for business class and first class. The luggage conveyor belt at JFK airport was broken so the flight departure was delayed which made the flight stressful as I had a tight connection. Although the captain said they could make up the delay, they didn’t do so.

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

They cancelled my flight and rebooked for Monday from Saturday without my consent. Putting me in a stressful spot. I have important medical appointments that I can’t miss and work. I tried to contact them to either rebook or request a refund, but I was always 200 or more in line and could never get ahold of customer service the call would always hang up after waiting 2 hours on hold. I’m not sure if I will ever get a refund even though I paid for seats as well, but my only option was to spend more money to rebook with another airline.

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

Vegetarian selection could be better. Bread was too hard to chew.

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

They messed up my seat so I didn’t get the one I paid for

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

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

Information on your arrival and departure airports