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Cheap flights from St. Louis to Athens from $435

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Athens departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Athens

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:28 am - 9:05 am
STL
-
ATH
14h 37m1 stop
United Airlines Logo
1:10 pm - 3:29 pm
ATH
-
STL
33h 19m1 stop
$435United Airlines
Tue, Mar 10 - Tue, Mar 17
British Airways Logo
6:00 am - 1:20 am
STL
-
ATH
35h 20m2 stops
British Airways Logo
4:55 pm - 11:48 pm
ATH
-
STL
37h 53m2 stops
$439British Airways
Tue, Mar 3 - Mon, Mar 9
United Airlines Logo
8:20 am - 9:05 am
STL
-
ATH
17h 45m2 stops
United Airlines Logo
1:10 pm - 3:29 pm
ATH
-
STL
33h 19m1 stop
$440United Airlines
Tue, Mar 10 - Tue, Mar 17
British Airways Logo
12:11 pm - 1:45 pm
STL
-
ATH
17h 34m2 stops
British Airways Logo
7:35 am - 6:16 pm
ATH
-
STL
18h 41m2 stops
$441British Airways
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
11:28 am - 9:05 am
STL
-
ATH
14h 37m1 stop
United Airlines Logo
10:55 am - 9:00 pm
ATH
-
STL
17h 05m2 stops
$442United Airlines
Tue, Mar 10 - Wed, Mar 18
United Airlines Logo
10:00 am - 9:05 am
STL
-
ATH
16h 05m2 stops
United Airlines Logo
10:55 am - 9:00 pm
ATH
-
STL
17h 05m2 stops
$447United Airlines
Tue, Mar 10 - Wed, Mar 18
Delta Logo
10:12 am - 1:35 pm
STL
-
ATH
19h 23m2 stops
Delta Logo
12:20 pm - 11:45 am
ATH
-
STL
30h 25m1 stop
$449Delta
Wed, Mar 4 - Tue, Mar 10
Lufthansa Logo
11:28 am - 9:05 am
STL
-
ATH
14h 37m1 stop
Lufthansa Logo
6:15 am - 2:55 pm
ATH
-
STL
15h 40m1 stop
$458Lufthansa
Tue, Mar 10 - Wed, Mar 18
United Airlines Logo
8:20 am - 9:05 am
STL
-
ATH
17h 45m2 stops
United Airlines Logo
7:05 am - 9:00 pm
ATH
-
STL
20h 55m2 stops
$461United Airlines
Tue, Mar 10 - Tue, Mar 17
Delta Logo
6:10 am - 1:35 pm
STL
-
ATH
24h 25m2 stops
Delta Logo
11:50 am - 8:52 am
ATH
-
STL
28h 02m2 stops
$462Delta
Wed, Mar 11 - Thu, Mar 19

British Airways flights from St. Louis to Athens

Our best British Airways deals on St. Louis to Athens flight tickets
British Airways
Mar 3
STL6:00 amLambert-St Louis
35h 20m
2 stops
ATH1:20 amAthens Eleftherios V.
Mar 9
ATH4:55 pmAthens Eleftherios V.
37h 53m
2 stops
STL11:48 pmLambert-St Louis
$439
Find similar
British Airways
Jan 13
STL12:11 pmLambert-St Louis
17h 34m
2 stops
ATH1:45 pmAthens Eleftherios V.
Jan 20
ATH7:35 amAthens Eleftherios V.
18h 41m
2 stops
STL6:16 pmLambert-St Louis
$441
Find similar
British Airways
Jan 14
STL6:44 pmLambert-St Louis
22h 21m
2 stops
ATH1:05 amAthens Eleftherios V.
Jan 30
ATH5:05 pmAthens Eleftherios V.
33h 08m
2 stops
STL6:13 pmLambert-St Louis
$466
Find similar

United Airlines flights from St. Louis to Athens

Our best United Airlines deals on St. Louis to Athens flight tickets
United Airlines
Mar 10
STL11:28 amLambert-St Louis
14h 37m
1 stop
ATH9:05 amAthens Eleftherios V.
Mar 17
ATH1:10 pmAthens Eleftherios V.
33h 19m
1 stop
STL3:29 pmLambert-St Louis
$435
Find similar
United Airlines
Mar 10
STL8:20 amLambert-St Louis
17h 45m
2 stops
ATH9:05 amAthens Eleftherios V.
Mar 17
ATH1:10 pmAthens Eleftherios V.
33h 19m
1 stop
STL3:29 pmLambert-St Louis
$440
Find similar
United Airlines
Mar 10
STL11:28 amLambert-St Louis
14h 37m
1 stop
ATH9:05 amAthens Eleftherios V.
Mar 18
ATH10:55 amAthens Eleftherios V.
17h 05m
2 stops
STL9:00 pmLambert-St Louis
$442
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Athens that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from St. Louis to Athens that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

11:28 am-9:05 am

1 stop14h 37m

Athens Eleftherios V.

Tue 3/17

1:10 pm-3:29 pm

1 stop33h 19m

$435

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

6:00 am-1:20 am

2 stops35h 20m

Athens Eleftherios V.

Mon 3/9

4:55 pm-11:48 pm

2 stops37h 53m

$439

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

8:20 am-9:05 am

2 stops17h 45m

Athens Eleftherios V.

Tue 3/17

1:10 pm-3:29 pm

1 stop33h 19m

$440

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 1/13

12:11 pm-1:45 pm

2 stops17h 34m

Athens Eleftherios V.

Tue 1/20

7:35 am-6:16 pm

2 stops18h 41m

$441

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

11:28 am-9:05 am

1 stop14h 37m

Athens Eleftherios V.

Wed 3/18

10:55 am-9:00 pm

2 stops17h 05m

$442

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

10:00 am-9:05 am

2 stops16h 05m

Athens Eleftherios V.

Wed 3/18

10:55 am-9:00 pm

2 stops17h 05m

$447

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 3/4

10:12 am-1:35 pm

2 stops19h 23m

Athens Eleftherios V.

Tue 3/10

12:20 pm-11:45 am

1 stop30h 25m

$449

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

11:28 am-9:05 am

1 stop14h 37m

Athens Eleftherios V.

Wed 3/18

6:15 am-2:55 pm

1 stop15h 40m

$458

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/10

8:20 am-9:05 am

2 stops17h 45m

Athens Eleftherios V.

Tue 3/17

7:05 am-9:00 pm

2 stops20h 55m

$461

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 3/11

6:10 am-1:35 pm

2 stops24h 25m

Athens Eleftherios V.

Thu 3/19

11:50 am-8:52 am

2 stops28h 02m

$462

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Athens from

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

What is the cheapest month to fly to Athens?

The cheapest month to fly to Athens from St. Louis is in February. Flight prices, which tend to average around $717, are often lower during this time because this is during the off-season. If you are unable to visit Athens during the month of February, then departing from St. Louis during the month November is also very affordable. Most momondo users find prices during this month for around $719.

What is the cheapest day to depart on your flight to Athens?

The cheapest day to depart on your flight to Athens is on a Sunday when prices can be found for as low as $1,177. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,424. These prices are subject to change though, so be sure to set up a Price Alert for flights to Athens.

What is the cheapest time of day to depart on your flight to Athens?

The cheapest time of day to fly to Athens is in the afternoon when flights can be purchased for as low as $1,240. Flights to Athens are more costly at noon, with an average ticket price of $1,454. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,055 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 $770 on momondo.

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

You could potentially save up to 12% 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

12h 35m

Direct flights

None
The fastest flight from St. Louis to Athens takes 12h 35m
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. 12h 30m 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?

  • 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?

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
LufthansaPriceFrom $546Free CancellationRating
6.8
7,612 reviews
Search Lufthansa flights
British AirwaysPriceFrom $553Free CancellationRating
6.7
7,562 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom $581Free CancellationRating
7.4
1,592 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $608Free CancellationRating
7.9
8,011 reviews
Search Delta flights
American AirlinesPriceFrom $618Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
United AirlinesPriceFrom $659Free CancellationRating
7.4
9,066 reviews
Search United Airlines flights
KLMPriceFrom $737Free CancellationRating
7.7
1,430 reviews
Search KLM flights
Air CanadaPriceFrom $739Free CancellationRating
7.1
10,500 reviews
Search Air Canada flights

Traveling to a place near Athens?

Book flights to Athens if you plan to visit one of these locations
Piraeus
Glyfada
Marathon
Hydra
Aegina
Skala
Loutraki
Tolo
Corinth
Agia Marina
Porto Cheli
Chalcis
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

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Fly your favorite airline to Athens

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
Air Canada
British Airways
Delta
Lufthansa
American Airlines
KLM
Scandinavian Airlines