Cheap flights from St Louis to Frankfurt am Main

Compare St Louis to Frankfurt am Main flight deals

Find the cheapest month or even day of the year to fly to Frankfurt am Main

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Flight deals from St Louis to Frankfurt am Main

Looking for a cheap last-minute deal or the best return flight from St Louis to Frankfurt am Main? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Frankfurt am Main

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

Direct flights from St Louis to Frankfurt am Main

St Louis to Frankfurt am Main: Alternative routes

Compare routes from St Louis to Frankfurt below. You may find an airport to fly into that's cheaper, faster, or easier than Frankfurt am Main.

St Louis to Frankfurt: Flight information

The things to know before you go.
Cheapest flight foundP49,495
Cheapest month to flyMarch
Average flight time8 hrs, 45 mins
Most popular airlineUnited
Average flights per week7

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

The best price we found for a return flight from St Louis to Frankfurt am Main is P49,495. 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 45 minutes is the average flight time from St Louis to Frankfurt am Main.
United and Lufthansa fly direct from St Louis to Frankfurt am Main.
As of September 2025, there are 7 flights per week flying from St Louis to Frankfurt am Main.
The cheapest month to fly from St Louis to Frankfurt am Main is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Frankfurt am Main Airport on Wednesday, 4 March 2026.
Yes – the average flight time is 8 hours and 45 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 am Main 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.
Currently, Lufthansa offers the cheapest flight tickets to Frankfurt am Main.

Flying from Lambert-St. Louis International Airport (STL) to Frankfurt Airport (FRA): what you need to know

  • Hop on a direct flight from Lambert-St. Louis International Airport to Frankfurt Airport and you'll be travelling for an average of 8 hours 45 minutes.

  • Frankfurt's timezone is UTC+1, which makes Frankfurt six hours ahead of St Louis.

  • Each week, there are four Lambert-St. Louis International Airport to Frankfurt Airport flights. If you want to jet off as soon as possible, jump on the 15:25 Lufthansa flight. If you're eager to make the most of your day before you fly, the last departure is at 16:45 with Lufthansa.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your STL to FRA flight.

  • Travelling during a peak time such as July? School holidays and other popular periods can lead to longer queues at security. Play things extra safe and get there up to four hours before an international flight and two hours before domestic departures.

  • Flying into Frankfurt (and then exploring more of Germany!) is a cinch with Lufthansa. This popular airline offers direct flights from Lambert-St. Louis International Airport to Frankfurt Airport.

  • The majority of passengers choose to fly with Lufthansa on this route.

  • The carrier with the most consistent on-time arrivals for STL to FRA flights is Lufthansa.

  • Consider adding a stopover when booking your ticket from Lambert-St. Louis International Airport to Frankfurt Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here's where you can stop between STL and FRA:

    • Logan International Airport

    • O'Hare International Airport

    • Detroit Metropolitan Wayne County Airport

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

  • P35,680 is the lowest price for a one-way Lambert-St. Louis International Airport to Frankfurt Airport flight. Return flights start at P49,495. These prices can change based on availability and demand.

  • Book six months before you travel. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from STL to FRA.

  • May is the cheapest month for flights from Lambert-St. Louis International Airport to Frankfurt Airport. If you'd like to travel at a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • There's no need to check back in every day to see if fares have gone down when you set up a Price Alert. We'll let you know as soon as the price changes on cheap flights from STL to FRA.

  • Tailor your trip with filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Lambert-St. Louis International Airport to Frankfurt Airport.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at Frankfurt Airport (FRA)

Getting from Frankfurt Airport (FRA) to central Frankfurt

  • Frankfurt Airport to central Frankfurt has a drive time of around 20 minutes. It's approximately 14 kilometres away.

  • If you're taking public transport, expect a journey of around 35 minutes.

When to fly to Frankfurt Airport (FRA)

  • The quietest month for a flight from Lambert-St. Louis International Airport to Frankfurt Airport is January, while April is the busiest. Pick the ideal time to go to Frankfurt based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Frankfurt is July, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Book your flights from Lambert-St. Louis International Airport to Frankfurt Airport in this month if this is the kind of weather you like.

  • January sees average temperatures of between -4ºC (25ºF) and 7ºC (45ºF). Look for cheap tickets from STL to FRA around that time if you'd rather travel in cooler conditions.

Explore more of Germany

  • You've seen Frankfurt, now it's time to discover other parts of Germany. Travel around 418 kilometres north-east to Berlin to check off its top sights. From Brandenburg Gate to Berlin Wall Memorial and East Side Gallery, you'll have a packed itinerary ahead.

  • Around 386 kilometres north of Frankfurt, Hamburg is another essential stop in Germany. Experience this destination's highlights firsthand at Miniatur Wunderland, Elbphilharmonie Hamburg and Port of Hamburg.

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