What are the cheapest airlines flying from St. Louis to Athens round-trip?

Currently priced at $696, United Airlines will fly you from St. Louis to Athens and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Lufthansa - these airlines can fly you to your destination from $697 and $701, respectively. These flights start at 33% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from St. Louis to Athens one-way?

One-way options have recently been found by users for as low as $488 on United Airlines. Other airlines that offer cheap prices include American Airlines from $493 and Air Canada from $518 one-way.

What is the cheapest day to fly from St. Louis to Athens?

Travelers seeking maximum savings on their St. Louis to Athens flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Athens ranges from 0.2 - 2.5 inches per month. December is typically the wettest month, when rainfall can reach 2.5 in. June is typically the driest time to visit Athens when rainfall is around 0.2 in.

If weather is an important factor for your trip to Athens, 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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

What are the most popular airlines that fly from St. Louis to Athens?

American Airlines, Air Canada and British Airways are the most popular airlines when flying from St. Louis to Athens.

What is the cheapest day to fly round-trip from St. Louis to Athens?

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 20% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St. Louis to Athens?

Users have found that booking a flight from St. Louis to Athens at least 25 days early can save you up to 92% on average compared to booking a flight this week. If booking 25 days before your flight isn’t an option for you, users have found flights from St. Louis to Athens for as little as $734 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 $1,878 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to Athens?

Our data shows that January tends to be the cheapest month to fly to Athens from St. Louis. Users have commonly found prices around $1,040 for the month, but tickets can be as low as $726. Due to multiple factors, prepare for potentially higher prices in June.

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

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

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

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

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

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

$488+ Flights from St. Louis to Athens

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Cheapflights Tip: The best prices from Lambert-St Louis to Athens Eleftherios V. are usually found in January or February, booked 24 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Athens

Round-trip from	$696 (United Airlines)
One-way from	$488 (United Airlines)
Popular in	June
Cheapest in	January
Average price	$1,307

From Lambert-St Louis to Athens Eleftherios V.

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One-way flight from Lambert-St Louis to Athens Eleftherios V.

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Highest demand for flights based on searches. 23% potential increase in price ($322 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from St. Louis to Athens

Cheapest flights from St. Louis to Athens
Explore the most affordable flight options available from St. Louis to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Mon 10/135:28 pmSTL - ATH

2 stops17h 07mUnited Airlines

Tue 10/2112:10 pmATH - STL

2 stops30h 39mUnited Airlines

Deal found 7/28

$696

Fri 10/179:15 amSTL - ATH

2 stops16h 50mAir Canada

Wed 10/2212:10 pmATH - STL

2 stops34h 17mAir Canada

Deal found 7/28

$697

Mon 9/87:04 pmSTL - ATH

2 stops19h 56mLufthansa

Mon 9/2211:40 amATH - STL

2 stops36h 04mLufthansa

Deal found 7/27

$701

Sat 9/135:25 pmSTL - ATH

1 stop33h 45mBritish Airways

Sun 12/214:50 pmATH - STL

2 stops33h 08mBritish Airways

Deal found 7/29

$716

Mon 9/110:20 amSTL - ATH

1 stop16h 35mDelta

Mon 9/83:25 amATH - STL

2 stops21h 24mDelta

Deal found 7/28

$727

Tue 9/231:30 pmSTL - ATH

1 stop12h 35mMultiple Airlines

Fri 10/36:30 amATH - STL

2 stops25h 27mMultiple Airlines

Deal found 7/29

$734

Sat 10/113:59 pmSTL - ATH

2 stops18h 51mScandinavian Airlines

Sat 10/258:30 pmATH - STL

2 stops35h 11mScandinavian Airlines

Deal found 7/28

$743

Fri 9/125:00 pmSTL - ATH

2 stops38h 15mIberia

Tue 9/238:25 pmATH - STL

2 stops31h 50mIberia

Deal found 7/27

$744

Best flights from St. Louis to Athens
Discover carefully curated flight deals from St. Louis to Athens that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Mon 10/135:28 pmSTL - ATH

2 stops17h 07mUnited Airlines

Tue 10/2112:10 pmATH - STL

2 stops30h 39mUnited Airlines

Deal found 7/28

$696

Fri 10/179:15 amSTL - ATH

2 stops16h 50mAir Canada

Wed 10/2212:10 pmATH - STL

2 stops34h 17mAir Canada

Deal found 7/28

$697

Mon 9/87:04 pmSTL - ATH

2 stops19h 56mLufthansa

Mon 9/2211:40 amATH - STL

2 stops36h 04mLufthansa

Deal found 7/27

$701

Sat 9/135:25 pmSTL - ATH

1 stop33h 45mBritish Airways

Sun 12/214:50 pmATH - STL

2 stops33h 08mBritish Airways

Deal found 7/27

$716

Tue 8/267:00 amSTL - ATH

2 stops22h 20mDelta

Mon 9/153:25 amATH - STL

2 stops21h 12mDelta

Deal found 7/28

$731

Sat 10/113:59 pmSTL - ATH

2 stops18h 51mScandinavian Airlines

Sat 10/258:30 pmATH - STL

2 stops35h 11mScandinavian Airlines

Deal found 7/28

$743

Fri 9/125:00 pmSTL - ATH

2 stops38h 15mIberia

Tue 9/238:25 pmATH - STL

2 stops31h 50mIberia

Deal found 7/27

$744

Tue 9/231:30 pmSTL - ATH

1 stop12h 35mMultiple Airlines

Fri 10/36:50 amATH - STL

1 stop14h 40mMultiple Airlines

Deal found 7/28

$764

Last-minute flights from St. Louis to Athens
Discover last-minute flight deals from St. Louis to Athens. Data last updated July 29, 2025 and is based on user searches.

Sun 8/310:57 amSTL - ATH

1 stop13h 13mUnited Airlines

Sun 8/1711:45 amATH - STL

1 stop15h 15mUnited Airlines

Deal found 7/27

$2,674

Sun 8/31:17 pmSTL - ATH

2 stops21h 03mBritish Airways

Sun 8/178:40 pmATH - STL

2 stops29h 50mBritish Airways

Deal found 7/27

$2,815

Tue 8/58:00 amSTL - ATH

2 stops16h 55mTurkish Airlines

Wed 8/2010:00 pmATH - STL

2 stops25h 44mTurkish Airlines

Deal found 7/29

$1,487

Tue 8/58:15 amSTL - ATH

1 stop17h 40mLufthansa

Wed 8/206:30 amATH - STL

1 stop15h 00mLufthansa

Deal found 7/29

$1,576

Tue 8/55:00 amSTL - ATH

2 stops21h 05mAir Canada

Wed 8/2012:10 pmATH - STL

1 stop15h 50mAir Canada

Deal found 7/27

$1,605

Tue 8/57:00 amSTL - ATH

1 stop19h 55mDelta

Tue 8/193:25 amATH - STL

2 stops21h 10mDelta

Deal found 7/28

$1,642

Thu 8/71:29 pmSTL - ATH

2 stops38h 56mScandinavian Airlines

Thu 8/147:40 pmATH - STL

2 stops35h 34mScandinavian Airlines

Deal found 7/29

$1,134

Mon 8/255:30 pmSTL - ATH

2 stops31h 25mTurkish Airlines

Sun 8/313:55 amATH - STL

2 stops19h 49mTurkish Airlines

Deal found 7/27

$1,303

Tue 8/269:17 amSTL - ATH

2 stops19h 33mUnited Airlines

Tue 9/166:40 amATH - STL

2 stops17h 04mUnited Airlines

Deal found 7/28

$709

Tue 8/267:00 amSTL - ATH

2 stops22h 20mDelta

Mon 9/153:25 amATH - STL

2 stops21h 12mDelta

Deal found 7/28

$731

Wed 8/273:30 pmSTL - ATH

1 stop13h 45mLufthansa

Thu 9/182:05 pmATH - STL

1 stop31h 25mLufthansa

Deal found 7/28

$730

Fri 8/295:30 pmSTL - ATH

2 stops59h 20mAir Canada

Mon 9/84:20 pmATH - STL

2 stops29h 59mAir Canada

Deal found 7/27

$699

One-way flights from St. Louis to Athens
Search for one-way flight options from St. Louis to Athens. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Mon 9/11:30 pmSTL - ATH

1 stop12h 35mUnited Airlines

Deal found 7/28

$488

Mon 9/19:08 amSTL - ATH

2 stops16h 07mAmerican Airlines

Deal found 7/29

$493

Sat 8/27:29 pmSTL - ATH

3 stops41h 21mMultiple Airlines

Deal found 7/26

$505

Thu 10/165:00 amSTL - ATH

2 stops21h 05mAir Canada

Deal found 7/27

$518

Thu 8/287:20 amSTL - ATH

1 stop19h 35mKLM

Deal found 7/28

$543

Sun 8/314:19 pmSTL - ATH

2 stops18h 01mBritish Airways

Deal found 7/29

$962

Sat 8/165:30 pmSTL - ATH

2 stops34h 15mLufthansa

Deal found 7/29

$1,247

Fri 8/151:04 pmSTL - ATH

1 stop12h 51mBrussels Airlines

Deal found 7/27

$1,401

Mon 9/13:42 pmSTL - ATH

3 stops21h 28mScandinavian Airlines

Deal found 7/28

$3,975

Fly from

Fly to

Route

Depart

Return

Price

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 10/13

5:28 pm-6:35 pm

2 stops17h 07m

Athens Eleftherios V.

Tue 10/21

12:10 pm-10:49 am

2 stops30h 39m

$696

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 10/17

9:15 am-10:05 am

2 stops16h 50m

Athens Eleftherios V.

Wed 10/22

12:10 pm-2:27 pm

2 stops34h 17m

$697

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 9/8

7:04 pm-11:00 pm

2 stops19h 56m

Athens Eleftherios V.

Mon 9/22

11:40 am-3:44 pm

2 stops36h 04m

$701

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 9/13

5:25 pm-11:10 am

1 stop33h 45m

Athens Eleftherios V.

Sun 12/21

4:50 pm-5:58 pm

2 stops33h 08m

$716

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 8/26

7:00 am-1:20 pm

2 stops22h 20m

Athens Eleftherios V.

Mon 9/15

3:25 am-4:37 pm

2 stops21h 12m

$731

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 10/11

3:59 pm-6:50 pm

2 stops18h 51m

Athens Eleftherios V.

Sat 10/25

8:30 pm-11:41 pm

2 stops35h 11m

$743

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 9/12

5:00 pm-3:15 pm

2 stops38h 15m

Athens Eleftherios V.

Tue 9/23

8:25 pm-8:15 pm

2 stops31h 50m

$744

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 9/23

1:30 pm-10:05 am

1 stop12h 35m

Athens Eleftherios V.

Fri 10/3

6:50 am-1:30 pm

1 stop14h 40m

$764

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 9/1

1:30 pm-10:05 am

1 stop12h 35m

$488

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 9/1

9:08 am-9:15 am

2 stops16h 07m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 17 results

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

Have a flexible travel schedule? Discover the best time to fly to Athens from St. Louis 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 St. Louis to Athens

How far ahead should I book a flight from St. Louis to Athens?

To ensure you get the cheapest price possible for a flight from St. Louis to Athens, you should look to book at least 24 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Athens?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Athens (average of $679). Flying from St. Louis to Athens in June is currently the most expensive (average of $1,286). 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 STL to ATH?

It’s optimal to fly from St. Louis to Athens in the afternoon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Athens

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Athens to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,899 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.3

Good

1,449 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from St. Louis to Athens round-trip?
Currently priced at $696, United Airlines will fly you from St. Louis to Athens and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Lufthansa - these airlines can fly you to your destination from $697 and $701, respectively. These flights start at 33% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from St. Louis to Athens one-way?
One-way options have recently been found by users for as low as $488 on United Airlines. Other airlines that offer cheap prices include American Airlines from $493 and Air Canada from $518 one-way.
Can I find deals for flights from St. Louis to Athens that include hotel bookings?
Yes. In addition to deals on St. Louis to Athens flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Athens?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Athens.
Can I find deals for business class flights from St. Louis to Athens?
Yes. Cheapflights offers flight deals from St. Louis to Athens 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 St. Louis to Athens?
Currently, November is the cheapest month in which you can book a flight from St. Louis to Athens (average of $679). Flying from St. Louis to Athens in June is currently the most expensive (average of $1,286). 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

Glyfada

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Alternative routes for St. Louis to Athens

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Psirri car rentals

Ambelokipi car rentals

Top 9 airlines flying from St. Louis to Athens

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest$581	Average$1,086	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$641	Average$1,149	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$647	Average$985	FlexibilityNo cancel fee	On-time70%
Virgin Atlantic	Cheapest$653	Average$1,280	FlexibilityNo cancel fee	On-time72%
United Airlines	Cheapest$700	Average$1,144	FlexibilityNo cancel fee	On-time69%
KLM	Cheapest$737	Average$1,043	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$740	Average$1,072	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$754	Average$1,306	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$755	Average$1,218	FlexibilityNo cancel fee	On-time67%

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$488+ Cheap flights from St. Louis (STL) to Athens (ATH)

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Athens with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to Athens Eleftherios V. are usually found in January or February, booked 24 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Athens

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Athens

Cheapest flights from St. Louis to AthensExplore the most affordable flight options available from St. Louis to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from St. Louis to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Athens

How far ahead should I book a flight from St. Louis to Athens?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Athens. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from St. Louis to Athens?

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

Find hourly flight availability from St. Louis to Athens. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Reviews of airlines servicing Athens

Get insights into the airlines that provide service to Athens. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Athens. Reviews last updated July 29, 2025.

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from St. Louis to Athens to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from St. Louis to Athens round-trip?

What are the cheapest airlines to fly from St. Louis to Athens one-way?

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

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

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

What is the cheapest month to book a flight from St. Louis to Athens?

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Alternative routes for St. Louis to Athens

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Top 9 airlines flying from St. Louis to Athens

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Cheapest flights from St. Louis to Athens
Explore the most affordable flight options available from St. Louis to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.