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Cheap flights from St. Louis to Athens from $381

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 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
British Airways Logo
2:21 pm - 1:20 am
STL
-
ATH
26h 59m
2 stops
British Airways Logo
8:10 pm - 11:48 pm
ATH
-
STL
34h 38m
2 stops
$440British Airways
Tue, Mar 3 - Mon, Mar 9
British Airways Logo
2:21 pm - 1:20 am
STL
-
ATH
26h 59m
2 stops
British Airways Logo
8:10 pm - 5:58 pm
ATH
-
STL
28h 48m
2 stops
$457British Airways
Tue, Mar 3 - Mon, Mar 9
British Airways Logo
11:46 am - 11:10 pm
STL
-
ATH
27h 24m
2 stops
British Airways Logo
8:10 pm - 11:48 pm
ATH
-
STL
35h 38m
2 stops
$479British Airways
Mon, Feb 16 - Mon, Feb 23
United Airlines Logo
11:25 am - 1:40 am
STL
-
ATH
30h 15m
2 stops
United Airlines Logo
7:05 am - 9:05 pm
ATH
-
STL
22h 00m
2 stops
$481United Airlines
Wed, Feb 18 - Fri, Feb 27
Air Canada Logo
4:05 pm - 4:40 pm
STL
-
ATH
16h 35m
2 stops
Air Canada Logo
12:15 pm - 3:29 pm
ATH
-
STL
34h 14m
1 stop
$486Air Canada
Tue, Mar 3 - Mon, Mar 9
Air Canada Logo
4:05 pm - 4:40 pm
STL
-
ATH
16h 35m
2 stops
Air Canada Logo
12:15 pm - 3:29 pm
ATH
-
STL
34h 14m
1 stop
$487Air Canada
Tue, Mar 3 - Mon, Mar 9
British Airways Logo
2:25 pm - 1:25 am
STL
-
ATH
27h 00m
2 stops
British Airways Logo
7:50 pm - 11:48 pm
ATH
-
STL
34h 58m
2 stops
$490British Airways
Sat, Feb 28 - Sun, Mar 8
Multiple Airlines Logo
4:05 pm - 12:20 pm
STL
-
ATH
36h 15m
2 stops
Multiple Airlines Logo
6:15 am - 1:55 pm
ATH
-
STL
15h 40m
1 stop
$507Multiple Airlines
Sat, Feb 28 - Sun, Mar 8
United Airlines Logo
6:40 pm - 1:40 am
STL
-
ATH
23h 00m
2 stops
United Airlines Logo
7:05 am - 9:05 pm
ATH
-
STL
22h 00m
2 stops
$531United Airlines
Mon, Feb 9 - Mon, Feb 16
United Airlines Logo
3:50 pm - 1:40 pm
STL
-
ATH
13h 50m
1 stop
United Airlines Logo
12:50 pm - 10:58 pm
ATH
-
STL
18h 08m
2 stops
$552United Airlines
Fri, Jan 30 - Tue, Feb 3

United Airlines flights from St. Louis to Athens

Our best United Airlines deals on St. Louis to Athens flight tickets
United Airlines
Feb 18
STL11:25 amLambert-St Louis
30h 15m
2 stops
ATH1:40 amAthens Eleftherios V.
Feb 27
ATH7:05 amAthens Eleftherios V.
22h 00m
2 stops
STL9:05 pmLambert-St Louis
$481
United Airlines
Feb 9
STL6:40 pmLambert-St Louis
23h 00m
2 stops
ATH1:40 amAthens Eleftherios V.
Feb 16
ATH7:05 amAthens Eleftherios V.
22h 00m
2 stops
STL9:05 pmLambert-St Louis
$531
United Airlines
Jan 30
STL3:50 pmLambert-St Louis
13h 50m
1 stop
ATH1:40 pmAthens Eleftherios V.
Feb 3
ATH12:50 pmAthens Eleftherios V.
18h 08m
2 stops
STL10:58 pmLambert-St Louis
$552

Lufthansa flights from St. Louis to Athens

Our best Lufthansa deals on St. Louis to Athens flight tickets
Lufthansa
Mar 29
STL6:35 pmLambert-St Louis
20h 30m
2 stops
ATH11:05 pmAthens Eleftherios V.
Apr 12
ATH6:00 amAthens Eleftherios V.
23h 08m
2 stops
STL9:08 pmLambert-St Louis
$712
Lufthansa
Mar 29
STL3:30 pmLambert-St Louis
21h 30m
1 stop
ATH9:00 pmAthens Eleftherios V.
Apr 12
ATH6:00 amAthens Eleftherios V.
23h 08m
2 stops
STL9:08 pmLambert-St Louis
$719
Lufthansa
Mar 29
STL3:30 pmLambert-St Louis
21h 30m
1 stop
ATH9:00 pmAthens Eleftherios V.
Apr 12
ATH6:45 amAthens Eleftherios V.
14h 40m
1 stop
STL1:25 pmLambert-St Louis
$818

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 January 20, 2026.
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 3/3

2:21 pm-1:20 am

2 stops26h 59m

Athens Eleftherios V.

Mon 3/9

8:10 pm-11:48 pm

2 stops34h 38m

$440

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

2:21 pm-1:20 am

2 stops26h 59m

Athens Eleftherios V.

Mon 3/9

8:10 pm-5:58 pm

2 stops28h 48m

$457

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 2/16

11:46 am-11:10 pm

2 stops27h 24m

Athens Eleftherios V.

Mon 2/23

8:10 pm-11:48 pm

2 stops35h 38m

$479

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 2/18

11:25 am-1:40 am

2 stops30h 15m

Athens Eleftherios V.

Fri 2/27

7:05 am-9:05 pm

2 stops22h 00m

$481

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

4:05 pm-4:40 pm

2 stops16h 35m

Athens Eleftherios V.

Mon 3/9

12:15 pm-3:29 pm

1 stop34h 14m

$486

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

4:05 pm-4:40 pm

2 stops16h 35m

Athens Eleftherios V.

Mon 3/9

12:15 pm-3:29 pm

1 stop34h 14m

$487

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

2:25 pm-1:25 am

2 stops27h 00m

Athens Eleftherios V.

Sun 3/8

7:50 pm-11:48 pm

2 stops34h 58m

$490

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

4:05 pm-12:20 pm

2 stops36h 15m

Athens Eleftherios V.

Sun 3/8

6:15 am-1:55 pm

1 stop15h 40m

$507

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 2/9

6:40 pm-1:40 am

2 stops23h 00m

Athens Eleftherios V.

Mon 2/16

7:05 am-9:05 pm

2 stops22h 00m

$531

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 1/30

3:50 pm-1:40 pm

1 stop13h 50m

Athens Eleftherios V.

Tue 2/3

12:50 pm-10:58 pm

2 stops18h 08m

$552

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 November. Flight prices, which tend to average around $674, are often lower during this time because this is during the off-season. If you are unable to visit Athens during the month of November, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $686.

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 $946 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 $733 on momondo.

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

You could potentially save up to 17% 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 50m

Direct flights

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

  • 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 $493Free CancellationRating
6.8
7,732 reviews
Search Lufthansa flights
American AirlinesPriceFrom $520Free CancellationRating
7.2
11,164 reviews
Search American Airlines flights
British AirwaysPriceFrom $553Free CancellationRating
6.7
7,690 reviews
Search British Airways flights
DeltaPriceFrom $558Free CancellationRating
7.9
8,080 reviews
Search Delta flights
United AirlinesPriceFrom $649Free CancellationRating
7.4
9,184 reviews
Search United Airlines flights
KLMPriceFrom $653Free CancellationRating
7.7
1,442 reviews
Search KLM flights
Air CanadaPriceFrom $655Free CancellationRating
7.1
10,637 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
Skala
Aegina
Loutraki
Tolo
Corinth
Chalcis
Agia Marina
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.

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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