649 € Cheap Flights from St Louis to Frankfurt

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Flight deals from St Louis to Frankfurt

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Frankfurt? If you want to travel next month, return fares start from 894 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Frankfurt

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Frankfurt flights are currently cheapest in September.

Direct flights from St Louis to Frankfurt

Alternative St Louis to Frankfurt routes

Looking for the cheapest, fastest or easiest route from St Louis to Frankfurt? You could fly into the following airports instead.

St Louis to Frankfurt: Flight information

The things to know before you go.
Cheapest flight found649 €
Cheapest month to flySeptember
Average flight time8 hrs, 52 mins
Most popular airlineLufthansa
Average flights per week27

Finding cheap flights from St Louis to Frankfurt: Frequently asked questions

There are 3 airports in Frankfurt: Frankfurt am Main, Mannheim and Hahn.
The best price we found for a return flight from St Louis to Frankfurt is 649 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours and 52 minutes is the average flight time from St Louis to Frankfurt.
Lufthansa and United fly direct from St Louis to Frankfurt.
As of June 2026, there are 9 flights per week flying from St Louis to Frankfurt.
The cheapest month to fly from St Louis to Frankfurt is usually September.
If you're flying from St Louis Airport, the cheapest airport near Frankfurt is Frankfurt am Main – which is 11.8 km away from the centre of Frankfurt. We've found flights into this airport from 649 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Frankfurt on Tuesday, 1 September 2026.
Yes – the average flight time is 8 hours and 52 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Frankfurt but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Frankfurt is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 16°C. July is typically the warmest month in Frankfurt, when it usually averages around 25°C. You can expect the least rain in April. The coldest month is January, with temperatures averaging -3°C. The rainiest month is July.
Currently, Condor and Lufthansa offer the cheapest flight tickets to Frankfurt.

Travelling from St Louis Lambert International Airport (STL) to Frankfurt: what you need to know

  • Jump on a direct flight from St Louis Lambert International Airport to Frankfurt and you'll be in the air for an average of 9 hours 55 minutes.

  • St Louis Lambert International Airport is located in St Louis. Following the UTC+1 timezone, Frankfurt is seven hours ahead of St Louis.

  • With four departures a week between the two airports, St Louis Lambert International Airport (STL) to Frankfurt Airport (FRA) is the most popular route. Catch Lufthansa's 15:30 flight to get your trip from STL to FRA underway.

  • For a relaxed start to your STL to Frankfurt flight, allow plenty of time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

  • During popular months such as July, you'll want to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead of international flights whenever you're travelling during a peak period in general.

  • Direct St Louis Lambert International Airport to Frankfurt tickets are available for booking. Frankfurt Airport (FRA) is where you'll be landing.

  • Take to the skies with Lufthansa. This well-known airline operates direct flights from St Louis Lambert International Airport to Frankfurt.

  • Stopovers are the perfect opportunity to break up your journey and possibly even tick off a new city. When browsing for plane tickets from STL to Frankfurt, uncheck the 'Direct flights only' box to see where you can visit along the way. Popular options include:

    • Chicago O'Hare International Airport (ORD)

    • Boston Logan International Airport (BOS)

    • Detroit Metropolitan Wayne County Airport (DTW)

  • Located around 16 kilometres from the centre of St Louis, STL can be reached in about 25 minutes by car (depending on traffic). The journey on public transport takes roughly 30 minutes.

  • Booked an early flight from St Louis Lambert International Airport to Frankfurt? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to STL:

  • Of the flights that depart from St Louis Lambert International Airport, 76% touch down on time at their destination.

  • You'll find STL at 10701 Lambert International Blvd..

How to find the cheapest flights from St Louis Lambert International Airport (STL) to Frankfurt

  • The best price we've found for a one-way St Louis Lambert International Airport to Frankfurt flight is 235 €. The cheapest price for a return flight is 649 €. Keep in mind fares can change due to availability at the time of booking.

  • Don't wait until the last moment. You're more likely to find cheap flights from STL to Frankfurt if you book ahead. Airlines often have some great early bird rates.

  • The 'Whole month' search tool will show you the cheapest tickets from St Louis Lambert International Airport to Frankfurt throughout the entire month. It's a great way to snap up a bargain if your dates aren't set in stone.

  • Locking in a cheap flight from STL to Frankfurt is a breeze with Price Alerts. Simply set up one of these automatic notifications and we'll get in touch as soon as there's a better deal.

  • Choose your ideal departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from St Louis Lambert International Airport to Frankfurt by 'Best,' 'Cheapest' or 'Fastest.'

Airports in Frankfurt

Frankfurt Airport (FRA)

  • The distance from Frankfurt Airport (FRA) to central Frankfurt is roughly 11 kilometres. It'll take you around 25 minutes to reach the centre driving.

  • It typically takes 20 minutes to get there using public transport.

  • Look into staying at a hotel near FRA if you're coming in on a late flight from St Louis Lambert International Airport to Frankfurt. Check in to one of these options and make your arrival easier:

  • For the best deal, reserve your vehicle from Frankfurt Airport around three weeks in advance of your flight from STL to Frankfurt.

Frankfurt Hahn Airport (HHN)

  • The centre of Frankfurt is about 121 kilometres from Frankfurt Hahn Airport (HHN). After your flight from St Louis Lambert International Airport to Frankfurt has touched down and you've made your way through the terminal, the drive should be around 1 hour 25 minutes.

  • You can expect the journey to take roughly 2 hours 10 minutes on public transport.

  • After stepping off your STL to Frankfurt flight, settle in at a hotel near HHN. These are some comfortable options that'll help you get into relaxation mode:

  • Avoid paying more than you need to. Securing your ride four weeks before your arrival at HHN can help you lock in a better rate.

Best time to go to Frankfurt

  • September is the busiest month for flights from St Louis Lambert International Airport to Frankfurt. To steer clear of the crowds, plan your trip to Frankfurt in January.

  • The warmest month in Frankfurt is August, with temperatures ranging between 12ºC (54ºF) and 29ºC (84ºF). Lock in your St Louis Lambert International Airport to Frankfurt plane ticket then if this is the type of weather you enjoy.

  • January has average temperatures of between -4ºC (25ºF) and 7ºC (45ºF). Search for a cheap ticket from STL to Frankfurt around that time if you like travelling in cooler conditions.

More about Frankfurt

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in Frankfurt right here. Explore these options after you've booked your flight from St Louis Lambert International Airport to Frankfurt:

  • There are so many things to see and do in this city it can be tricky to work out where to start. Bildungsstatte Anne Frank, Van Gogh Alive Frankfurt and Main Tower are top sights which should be on any well-planned Frankfurt itinerary.

Explore more of Germany

  • You've seen Frankfurt, now it's time to discover other corners of Germany. Journey about 418 kilometres northeast to Berlin to check off its top attractions. From Brandenburg Gate to Berlin Wall and Parliament Building, you've got a jam-packed schedule ahead.

  • Hamburg is another must-experience destination in Germany and is around 386 kilometres north of Frankfurt. No trip is complete without visiting Miniatur Wunderland, Elbphilharmonie Hamburg and Port of Hamburg.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.