How long is the flight from Frankfurt am Main Airport to St. Louis?

Departing from Frankfurt am Main Airport to St. Louis will take you 16h 37m. The distance from Frankfurt am Main Airport to St. Louis is about 4577 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Frankfurt am Main Airport to St. Louis round-trip?

Cheapflights users have booked flights from Frankfurt am Main Airport to St. Louis round-trip from $557. Other airlines that can offer you cheap pricing are Lufthansa, from $589, and United Airlines, from $592. American Airlines is priced at 25% lower than the current average price of a flight leaving 3 months from now.

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

Travelers seeking maximum savings on their Frankfurt am Main Airport to St. Louis flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the cheapest flights from Frankfurt am Main Airport to St. Louis?

The cheapest flight price from Frankfurt am Main Airport to St. Louis is $633. On average you can expect to pay $1,027. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $592.

What are the most popular airlines that fly from Frankfurt am Main Airport to St. Louis?

When booking a flight from Frankfurt am Main Airport to St. Louis, you may want to consider flying on American Airlines, Lufthansa or United Airlines as they are the most popular for this route.

What is the cheapest day to fly round-trip from Frankfurt am Main Airport to St. Louis?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 62% on your flight compared to booking on days when demand is much higher.

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

Users have found that booking a flight from Frankfurt am Main Airport to St. Louis at least 50 days early can save you up to 62% on average compared to booking a flight this week. If booking 50 days before your flight isn’t an option for you, users have found flights from Frankfurt am Main Airport to St. Louis for as little as $636 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $981 for flights departing within the next 3 days.

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

November can be a great time to fly to St. Louis from Frankfurt am Main Airport with a flight ticket averaging about $744. Cheapflights users have found deals in the month of November for as cheap as $549. The most expensive prices can be found in the month of December.

What airport do you fly into for flights to St. Louis from Frankfurt am Main?

For a flight from Frankfurt am Main to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from Frankfurt am Main per day. 3 airlines have flights to Lambert-St Louis from Frankfurt am Main on a regular basis.

Can I find deals for flights from Frankfurt to St. Louis that include hotel bookings?

Yes. In addition to deals on Frankfurt to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Frankfurt to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Frankfurt to St. Louis.

Can I find deals for business class flights from Frankfurt to St. Louis?

Yes. Cheapflights offers flight deals from Frankfurt to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$419+ Cheap Flights from Frankfurt am Main Airport to St. Louis

Q: How much does it cost to fly round-trip from Frankfurt am Main Airport to St. Louis?

Airfare is below average for this route at the moment. Frankfurt am Main Airport to St. Louis flights typically cost between $637 and $863 in October. The cheapest round-trip price found within the last 3 days was $572 on British Airways (Oct 31-Nov 14).

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Cheapflights Tip: The best prices from Frankfurt am Main to Lambert-St Louis are usually found in November or April, booked 49 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Frankfurt to St. Louis

Round-trip from	$572 (AirNGo)
One-way from	$419 (Finnair)
Popular in	December
Cheapest in	November
Average price	$766
Good one-way deal	$1,006 or less

From Frankfurt am Main to Lambert-St Louis

Search Deals

One-way flight from Frankfurt am Main to Lambert-St Louis

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Highest demand for flights based on searches. 5% potential increase in price ($40 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a one-way flight from Frankfurt am Main to Lambert-St Louis.

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Find flight deals from Frankfurt to St. Louis

Cheapest flights from Frankfurt to St. Louis
Explore the most affordable flight options available from Frankfurt to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Fri 10/3110:15 amFRA - STL

1 stop14h 07mBritish Airways

Fri 11/142:17 pmSTL - FRA

2 stops24h 43mBritish Airways

Deal found 9/11

$572

Fri 10/3110:40 amFRA - STL

1 stop12h 49mMultiple Airlines

Fri 11/141:55 pmSTL - FRA

1 stop11h 45mMultiple Airlines

Deal found 9/11

$579

Thu 10/22:15 pmFRA - STL

2 stops16h 09mDelta

Sun 10/129:10 amSTL - FRA

2 stops16h 50mDelta

Deal found 9/11

$586

Fri 10/3110:40 amFRA - STL

1 stop12h 49mKLM

Fri 11/1411:44 amSTL - FRA

2 stops14h 51mKLM

Deal found 9/11

$588

Wed 10/17:00 amFRA - STL

2 stops23h 09mDelta

Sat 10/111:30 pmSTL - FRA

2 stops13h 20mDelta

Deal found 9/11

$590

Wed 10/111:45 amFRA - STL

2 stops18h 24mDelta

Mon 10/135:31 pmSTL - FRA

2 stops13h 04mDelta

Deal found 9/11

$592

Fri 10/3110:40 amFRA - STL

2 stops18h 26mDelta

Fri 11/146:09 pmSTL - FRA

2 stops15h 36mDelta

Deal found 9/11

$595

Sun 10/2610:50 amFRA - STL

1 stop19h 08mMultiple Airlines

Sun 11/25:17 amSTL - FRA

1 stop18h 58mMultiple Airlines

Deal found 9/11

$596

Best flights from Frankfurt to St. Louis
Discover carefully curated flight deals from Frankfurt to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Fri 10/3110:50 amFRA - STL

1 stop13h 56mMultiple Airlines

Fri 11/144:42 pmSTL - FRA

2 stops15h 58mMultiple Airlines

Deal found 9/11

$583

Wed 10/17:00 amFRA - STL

2 stops16h 37mDelta

Tue 10/711:21 amSTL - FRA

2 stops15h 29mDelta

Deal found 9/11

$590

Fri 10/312:15 pmFRA - STL

2 stops25h 00mKLM

Fri 11/142:36 pmSTL - FRA

1 stop10h 14mKLM

Deal found 9/10

$592

Wed 10/111:00 amFRA - STL

1 stop16h 34mVirgin Atlantic

Tue 10/711:21 amSTL - FRA

1 stop14h 34mVirgin Atlantic

Deal found 9/11

$599

Thu 10/210:15 amFRA - STL

2 stops20h 09mDelta

Sun 10/122:15 pmSTL - FRA

1 stop12h 35mDelta

Deal found 9/11

$590

Sat 10/257:00 amFRA - STL

2 stops20h 33mDelta

Sat 11/110:45 amSTL - FRA

1 stop15h 05mDelta

Deal found 9/10

$592

Wed 10/111:45 amFRA - STL

2 stops18h 24mDelta

Mon 10/135:31 pmSTL - FRA

2 stops13h 04mDelta

Deal found 9/11

$592

Fri 10/3110:40 amFRA - STL

2 stops18h 26mDelta

Fri 11/146:09 pmSTL - FRA

2 stops15h 36mDelta

Deal found 9/11

$595

Last-minute flights from Frankfurt to St. Louis
Discover last-minute flight deals from Frankfurt to St. Louis. Data last updated September 11, 2025 and is based on user searches.

Wed 10/17:00 amFRA - STL

2 stops23h 09mDelta

Mon 10/132:15 pmSTL - FRA

1 stop12h 35mDelta

Deal found 9/11

$590

Thu 10/22:15 pmFRA - STL

2 stops16h 09mDelta

Sun 10/129:10 amSTL - FRA

2 stops16h 50mDelta

Deal found 9/11

$586

Sun 10/2610:50 amFRA - STL

1 stop19h 08mMultiple Airlines

Sun 11/25:17 amSTL - FRA

1 stop18h 58mMultiple Airlines

Deal found 9/11

$596

Fri 10/3110:15 amFRA - STL

1 stop14h 07mBritish Airways

Fri 11/142:17 pmSTL - FRA

2 stops24h 43mBritish Airways

Deal found 9/11

$572

Fri 10/3110:40 amFRA - STL

1 stop12h 49mMultiple Airlines

Fri 11/141:55 pmSTL - FRA

1 stop11h 45mMultiple Airlines

Deal found 9/11

$579

Fri 10/3110:40 amFRA - STL

1 stop12h 49mKLM

Fri 11/1411:44 amSTL - FRA

2 stops14h 51mKLM

Deal found 9/11

$588

Fri 10/3110:40 amFRA - STL

2 stops18h 26mDelta

Fri 11/146:09 pmSTL - FRA

2 stops15h 36mDelta

Deal found 9/11

$595

One-way flights from Frankfurt to St. Louis
Search for one-way flight options from Frankfurt to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Wed 2/187:20 pmFRA - STL

2 stops29h 59mFinnair

Deal found 9/11

$419

Wed 2/1810:50 amFRA - STL

1 stop13h 23mMultiple Airlines

Deal found 9/11

$421

Wed 9/246:05 amFRA - STL

3 stops39h 59mMultiple Airlines

Deal found 9/11

$528

Tue 9/167:40 pmFRA - STL

3 stops50h 24mMultiple Airlines

Deal found 9/11

$555

Mon 10/69:30 pmFRA - STL

3 stops42h 37mMultiple Airlines

Deal found 9/11

$556

Mon 10/610:55 amFRA - STL

1 stop19h 54mBritish Airways

Deal found 9/11

$561

Tue 9/309:00 pmFRA - STL

3 stops49h 04mMultiple Airlines

Deal found 9/10

$585

Tue 1/139:20 pmFRA - STL

3 stops54h 33mMultiple Airlines

Deal found 9/9

$588

Tue 1/1311:25 amFRA - STL

2 stops19h 07mBritish Airways

Deal found 9/9

$596

Wed 10/11:30 pmFRA - STL

3 stops53h 30mMultiple Airlines

Deal found 9/10

$602

Cheapflights Fare Finder

Use the filters below to find and compare flights from Frankfurt am Main Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

10:50 am-6:46 pm

1 stop13h 56m

Lambert-St Louis

Fri 11/14

4:42 pm-3:40 pm

2 stops15h 58m

$583

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 10/1

7:00 am-4:37 pm

2 stops16h 37m

Lambert-St Louis

Tue 10/7

11:21 am-9:50 am

2 stops15h 29m

$590

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Thu 10/2

10:15 am-11:24 pm

2 stops20h 09m

Lambert-St Louis

Sun 10/12

2:15 pm-9:50 am

1 stop12h 35m

$590

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

2:15 pm-9:15 am

2 stops25h 00m

Lambert-St Louis

Fri 11/14

2:36 pm-7:50 am

1 stop10h 14m

$592

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Sat 10/25

7:00 am-8:33 pm

2 stops20h 33m

Lambert-St Louis

Sat 11/1

10:45 am-7:50 am

1 stop15h 05m

$592

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 10/1

11:45 am-11:09 pm

2 stops18h 24m

Lambert-St Louis

Mon 10/13

5:31 pm-1:35 pm

2 stops13h 04m

$592

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 10/31

10:40 am-11:06 pm

2 stops18h 26m

Lambert-St Louis

Fri 11/14

6:09 pm-4:45 pm

2 stops15h 36m

$595

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 10/1

11:00 am-8:34 pm

1 stop16h 34m

Lambert-St Louis

Tue 10/7

11:21 am-8:55 am

1 stop14h 34m

$599

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 2/18

7:20 pm-6:19 pm

2 stops29h 59m

$419

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Wed 2/18

10:50 am-5:13 pm

1 stop13h 23m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results

The best insider tips for Frankfurt am Main Airport to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Frankfurt am Main Airport to St. Louis trip

Airports

FRA

Download the official FRA app to stay updated on strikes and key info, ensuring a smooth departure experience.

STL

Use the MetroLink light rail for a convenient and economical way to reach downtown St. Louis from STL.

Our travel experts

Blane Bachelor

Expert on FRA

Taryn White

Expert on STL

Best time to book a flight from Frankfurt to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Frankfurt with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

The best time to book flights from Frankfurt am Main Airport to St. Louis is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Frankfurt am Main Airport to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $311). Flying from Frankfurt am Main Airport to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from FRA to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Frankfurt am Main Airport to St. Louis as you normally would.

How much does it cost to fly round-trip from Frankfurt am Main Airport to St. Louis?

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Frankfurt am Main Airport to St. Louis, such as United Airlines, American Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

8,937 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Lufthansa

6.8

Okay

7,409 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

What airport do you fly into for flights to St. Louis from Frankfurt am Main?
For a flight from Frankfurt am Main to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from Frankfurt am Main per day. 3 airlines have flights to Lambert-St Louis from Frankfurt am Main on a regular basis.
How long is the flight from Frankfurt am Main Airport to St. Louis?
Departing from Frankfurt am Main Airport to St. Louis will take you 16h 37m. The distance from Frankfurt am Main Airport to St. Louis is about 4577 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Frankfurt am Main Airport to St. Louis round-trip?
Cheapflights users have booked flights from Frankfurt am Main Airport to St. Louis round-trip from $557. Other airlines that can offer you cheap pricing are Lufthansa, from $589, and United Airlines, from $592. American Airlines is priced at 25% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest flights from Frankfurt am Main Airport to St. Louis?
The cheapest flight price from Frankfurt am Main Airport to St. Louis is $633. On average you can expect to pay $1,027. The most popular route, (Frankfurt am Main - Lambert-St Louis), can usually be booked for $592.
Can I find deals for flights from Frankfurt to St. Louis that include hotel bookings?
Yes. In addition to deals on Frankfurt to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Frankfurt to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Frankfurt to St. Louis.
Can I find deals for business class flights from Frankfurt to St. Louis?
Yes. Cheapflights offers flight deals from Frankfurt to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Frankfurt am Main Airport to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to St. Louis (average of $311). Flying from Frankfurt am Main Airport to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Edwardsville

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Maryland Heights

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Chesterfield

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Farmington

Festus

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Top 3 airlines flying from Frankfurt to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$557	Average$613	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$589	Average$930	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$592	Average$808	FlexibilityNo cancel fee	On-time69%

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$419+ Cheap flights from Frankfurt (FRA) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Frankfurt to St. Louis with Cheapflights

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3. Compare prices and book

Cheapflights Tip: The best prices from Frankfurt am Main to Lambert-St Louis are usually found in November or April, booked 49 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Frankfurt to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Find flight deals from Frankfurt to St. Louis

Cheapest flights from Frankfurt to St. LouisExplore the most affordable flight options available from Frankfurt to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Frankfurt to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Frankfurt am Main Airport to St. Louis that are best for you.

The best insider tips for Frankfurt am Main Airport to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Frankfurt am Main Airport to St. Louis trip

Airports

FRA

STL

Our travel experts

Best time to book a flight from Frankfurt to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Frankfurt with our price prediction graph.

Cheapflights Insights

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

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

What is the cheapest month to book a flight from Frankfurt am Main Airport to St. Louis?

What is the cheapest time of day to fly from FRA to STL?

How much does it cost to fly round-trip from Frankfurt am Main Airport to St. Louis?

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Frankfurt am Main Airport to St. Louis, such as United Airlines, American Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Frankfurt to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Frankfurt am Main?

How long is the flight from Frankfurt am Main Airport to St. Louis?

What are the cheapest airlines flying from Frankfurt am Main Airport to St. Louis round-trip?

What are the cheapest flights from Frankfurt am Main Airport to St. Louis?

Can I find deals for flights from Frankfurt to St. Louis that include hotel bookings?

How can I find direct flights from Frankfurt to St. Louis?

Can I find deals for business class flights from Frankfurt to St. Louis?

What is the cheapest month to book a flight from Frankfurt am Main Airport to St. Louis?

Traveling to a place near St. Louis?

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Alternative routes for Frankfurt to St. Louis

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Top 3 airlines flying from Frankfurt to St. Louis

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Cheapest flights from Frankfurt to St. Louis
Explore the most affordable flight options available from Frankfurt to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.