Which layover airport offers the lowest fares from St. Louis to Athens?

Flights via Montreal (YUL) offer the lowest average round-trip price of $858.

Which airport is the most popular layover for flights between St. Louis and Athens?

Philadelphia (PHL) was the most common stop: 22% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Athens?

United Airlines, Air Canada and British Airways are the top three most popular airlines that fly to Athens from St. Louis according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Athens. Keep in mind that there are 9 different airlines that fly to Athens on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from St. Louis to Athens?

Toronto (YYZ) has the shortest average layover time for this route: 1h 48m.

What is the cheapest airline that flies from Lambert-St Louis to Athens Eleftherios V.?

Aer Lingus and British Airways are the most popular carriers operating from Lambert-St Louis to Athens Eleftherios V.

Which layover airport has the shortest travel time from St. Louis to Athens?

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 13h 05m.

When did momondo last update prices for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport?

Prices for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport?

There are 9 operators available for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport as of March 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Athens Eleftherios V. Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Athens Eleftherios V. Airport.

What documentation or ID do you need to fly to Athens Eleftherios V. Airport?

The travel and health documents required for your trip to Athens Eleftherios V. Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Athens Eleftherios V. Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$376 Cheap Flights from St. Louis to Athens in 2026

Q: What is the typical price of a round-trip flight between St. Louis and Athens?

Prices are currently low for flights on this route. Typical prices usually range from $697 to $899. The lowest price recently found on this route was $674.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Athens

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:42 pm - 8:15 pm

STL

ATH

20h 33m

2 stops

7:30 pm - 11:37 pm

ATH

STL

36h 07m

2 stops

$674Scandinavian Airlines

Fri, Aug 21 - Wed, Sep 2

9:35 pm - 2:00 am

STL

ATH

20h 25m

1 stop

11:15 am - 8:19 pm

ATH

STL

17h 04m

1 stop

$790Multiple Airlines

Fri, Aug 21 - Wed, Sep 2

9:35 pm - 2:00 am

STL

ATH

20h 25m

1 stop

6:55 am - 8:19 pm

ATH

STL

21h 24m

2 stops

$798Multiple Airlines

Fri, Aug 21 - Wed, Sep 2

9:08 am - 12:15 pm

STL

ATH

19h 07m

1 stop

1:00 pm - 11:33 pm

ATH

STL

18h 33m

1 stop

$814American Airlines

Tue, Sep 1 - Thu, Sep 10

7:23 am - 11:00 am

STL

ATH

19h 37m

1 stop

6:55 am - 6:02 pm

ATH

STL

19h 07m

2 stops

$822American Airlines

Tue, Sep 1 - Thu, Sep 10

4:05 pm - 10:35 pm

STL

ATH

22h 30m

3 stops

11:25 pm - 8:25 pm

ATH

STL

29h 00m

2 stops

$825Multiple Airlines

Mon, Apr 20 - Tue, May 5

1:00 pm - 4:40 pm

STL

ATH

19h 40m

2 stops

7:40 am - 8:25 pm

ATH

STL

20h 45m

2 stops

$830Multiple Airlines

Tue, May 12 - Mon, May 18

7:23 am - 11:00 am

STL

ATH

19h 37m

1 stop

7:25 am - 6:58 pm

ATH

STL

19h 33m

2 stops

$832American Airlines

Tue, Sep 1 - Thu, Sep 10

4:13 pm - 4:30 pm

STL

ATH

16h 17m

2 stops

6:35 am - 4:55 pm

ATH

STL

18h 20m

2 stops

$835Delta

Tue, Sep 1 - Tue, Sep 15

7:05 am - 4:40 pm

STL

ATH

25h 35m

3 stops

7:40 am - 8:25 pm

ATH

STL

20h 45m

2 stops

$838Multiple Airlines

Tue, May 12 - Mon, May 18

American Airlines flights from St. Louis to Athens

Our best American Airlines deals on St. Louis to Athens flight tickets

American Airlines

Sep 1

STL9:08 amLambert-St Louis

19h 07m

1 stop

ATH12:15 pmAthens Eleftherios V.

Sep 10

ATH1:00 pmAthens Eleftherios V.

18h 33m

1 stop

STL11:33 pmLambert-St Louis

$814

American Airlines

Sep 1

STL7:23 amLambert-St Louis

19h 37m

1 stop

ATH11:00 amAthens Eleftherios V.

Sep 10

ATH6:55 amAthens Eleftherios V.

19h 07m

2 stops

STL6:02 pmLambert-St Louis

$822

American Airlines

Sep 1

STL7:23 amLambert-St Louis

19h 37m

1 stop

ATH11:00 amAthens Eleftherios V.

Sep 10

ATH7:25 amAthens Eleftherios V.

19h 33m

2 stops

STL6:58 pmLambert-St Louis

$832

KLM flights from St. Louis to Athens

Our best KLM deals on St. Louis to Athens flight tickets

KLM

Apr 20

STL9:59 amLambert-St Louis

17h 01m

1 stop

ATH11:00 amAthens Eleftherios V.

May 5

ATH6:00 amAthens Eleftherios V.

18h 42m

2 stops

STL4:42 pmLambert-St Louis

$843

KLM

Apr 28

STL6:50 pmLambert-St Louis

32h 10m

1 stop

ATH11:00 amAthens Eleftherios V.

May 5

ATH9:45 amAthens Eleftherios V.

21h 51m

1 stop

STL11:36 pmLambert-St Louis

$849

KLM

Apr 20

STL9:59 amLambert-St Louis

17h 01m

1 stop

ATH11:00 amAthens Eleftherios V.

May 5

ATH9:45 amAthens Eleftherios V.

19h 34m

1 stop

STL9:19 pmLambert-St Louis

$852

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 8/21

3:42 pm-8:15 pm

2 stops20h 33m

Athens Eleftherios V.

Wed 9/2

7:30 pm-11:37 pm

2 stops36h 07m

$674

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 8/21

9:35 pm-2:00 am

1 stop20h 25m

Athens Eleftherios V.

Wed 9/2

11:15 am-8:19 pm

1 stop17h 04m

$790

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 8/21

9:35 pm-2:00 am

1 stop20h 25m

Athens Eleftherios V.

Wed 9/2

6:55 am-8:19 pm

2 stops21h 24m

$798

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 9/1

9:08 am-12:15 pm

1 stop19h 07m

Athens Eleftherios V.

Thu 9/10

1:00 pm-11:33 pm

1 stop18h 33m

$814

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 9/1

7:23 am-11:00 am

1 stop19h 37m

Athens Eleftherios V.

Thu 9/10

6:55 am-6:02 pm

2 stops19h 07m

$822

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 4/20

4:05 pm-10:35 pm

3 stops22h 30m

Athens Eleftherios V.

Tue 5/5

11:25 pm-8:25 pm

2 stops29h 00m

$825

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 5/12

1:00 pm-4:40 pm

2 stops19h 40m

Athens Eleftherios V.

Mon 5/18

7:40 am-8:25 pm

2 stops20h 45m

$830

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 9/1

7:23 am-11:00 am

1 stop19h 37m

Athens Eleftherios V.

Thu 9/10

7:25 am-6:58 pm

2 stops19h 33m

$832

Quickest round-trip

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 9/1

4:13 pm-4:30 pm

2 stops16h 17m

Athens Eleftherios V.

Tue 9/15

6:35 am-4:55 pm

2 stops18h 20m

$835

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 5/12

7:05 am-4:40 pm

3 stops25h 35m

Athens Eleftherios V.

Mon 5/18

7:40 am-8:25 pm

2 stops20h 45m

$838

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Athens

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between St. Louis and Athens?

What is the cheapest month to fly to Athens?

The cheapest month to fly to Athens from St. Louis is in January. Flight prices, which tend to average around $529, are often lower during this time because this is during the off-season. If you are unable to visit Athens during the month of January, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $583.

How far in advance should I book a flight to Athens?

You are more likely to see cheaper flights to Athens from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Athens for around $882 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Athens from St. Louis for as low as $706 on momondo.

Can stopping save me money on St. Louis to Athens flights?

You could potentially save up to 35% on your flight if you consider stops on a St. Louis to Athens flight.

When to book flights from St. Louis to Athens

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Athens according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Athens (STL to ATH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Athens

Fastest flight time	15h 50m
Direct flights	None

The fastest flight from St. Louis to Athens takes 15h 50m

There are no direct flights from St. Louis to Athens. There are no popular flight routes from St. Louis to Athens.

Search flight deals

How far is Lambert-St Louis to Athens Eleftherios V. by plane?
The distance between Lambert-St Louis and Athens Eleftherios V. is about 5680.5 mi. 15h 50m is a normal flight duration for this route.
When did momondo last update prices for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport?
Prices for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport?
There are 9 operators available for flights from Lambert-St Louis Airport to Athens Eleftherios V. Airport as of March 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Athens Eleftherios V. Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Athens Eleftherios V. Airport.
What documentation or ID do you need to fly to Athens Eleftherios V. Airport?
The travel and health documents required for your trip to Athens Eleftherios V. Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Athens Eleftherios V. Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Athens?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Athens is United Airlines (37% of total bookings). The next most popular airlines are Air Canada (20%), British Airways (12%), and Delta (10%).

Best airlines flying from St. Louis to Athens

Compare and see reviews for airlines that fly from St. Louis to Athens with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $483	Free Cancellation	Rating 6.8 7,850 reviews	Search Lufthansa flights
American Airlines	PriceFrom $520	Free Cancellation	Rating 7.1 11,471 reviews	Search American Airlines flights
British Airways	PriceFrom $553	Free Cancellation	Rating 6.7 7,793 reviews	Search British Airways flights
Delta	PriceFrom $558	Free Cancellation	Rating 7.9 8,296 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $588	Free Cancellation	Rating 7.3 1,715 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $647	Free Cancellation	Rating 7.1 10,803 reviews	Search Air Canada flights
United Airlines	PriceFrom $649	Free Cancellation	Rating 7.4 9,427 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $653	Free Cancellation	Rating 7.5 680 reviews	Search Virgin Atlantic flights
KLM	PriceFrom $814	Free Cancellation	Rating 7.8 1,471 reviews	Search KLM flights

Piraeus

Glyfada

Marathon

Hydra

Skala

Loutraki

Aegina

Tolo

Corinth

Agia Marina

Chalcis

Porto Cheli

Galaxidi

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Athens?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Athens for you.

Can I find flights from St. Louis to Athens with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Athens flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Athens?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Athens.

I’m not ready to book a flight from St. Louis to Athens right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Athens flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Athens trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 4/14

Tue 4/21

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Greece

Airlines

Cabin classes

Other Greece destinations

Other flights from St. Louis

Complete your trip

Feeling lucky

Fly your favorite airline to Athens

Scandinavian Airlines

Virgin Atlantic

Cheap flights from St. Louis to Athens from $376

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Athens departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from St. Louis to Athens

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

American Airlines flights from St. Louis to Athens

Our best American Airlines deals on St. Louis to Athens flight tickets

KLM flights from St. Louis to Athens

Our best KLM deals on St. Louis to Athens flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Athens that are best for you.

See travel insights to Athens from

How to get the cheapest flight ticket from St. Louis to Athens

What is the typical price of a round-trip flight between St. Louis and Athens?

What is the cheapest month to fly to Athens?

How far in advance should I book a flight to Athens?

Can stopping save me money on St. Louis to Athens flights?

What is the cheapest airline that flies from Lambert-St Louis to Athens Eleftherios V.?

What airlines fly to Athens?

Which airport is the most popular layover for flights between St. Louis and Athens?

Which layover airport offers the lowest fares from St. Louis to Athens?

Which layover airport has the shortest travel time from St. Louis to Athens?

Which layover airport has the shortest connection time from St. Louis to Athens?

When to book flights from St. Louis to Athens

Cheap St. Louis to Athens (STL to ATH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Athens

Fastest flight time

Direct flights

Best airlines flying from St. Louis to Athens

Compare and see reviews for airlines that fly from St. Louis to Athens with momondo

Traveling to a place near Athens?

Why use momondo?

An easier way to manage your Athens trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Greece

Fly your favorite airline to Athens

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Athens

List of cabin classes available on flights landing in Athens. Availability may vary depending on flight origin and airline.

Popular cities in Greece

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from St. Louis

According to popular flight searches on momondo this year

Complete your trip to Athens

Explore popular destinations other users love

According to popular flight searches on momondo this year