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

Currently priced at $1,057, United Airlines will fly you from Athens to St. Louis and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

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

$659 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on British Airways and Iberia, with prices starting from $696 and $795, respectively.

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

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

Most accurate provider : When it comes to deals on Athens-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Athens-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Athens-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Athens-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Athens-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Athens 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.

Find Cheap Flights from Athens to St. Louis

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Athens to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Athens to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Athens Eleftherios V.-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Athens Eleftherios V.-Lambert-St Louis flights.

Search Deals

Most accurate provider: When it comes to deals on Athens-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Athens-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Athens-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Athens-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Athens-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

ATH-STL

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.

Reviews of airlines servicing St. Louis

See what other customers who have flown with United Airlines from Athens to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,805 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

United Airlines

7.4

Good

9,805 reviews

United Airlines

7.4

Good

9,805 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

What is the cheapest airline to fly from Athens to St. Louis round-trip?
Currently priced at $1,057, United Airlines will fly you from Athens to St. Louis and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.
What are the cheapest airlines to fly from Athens to St. Louis one-way?
$659 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on British Airways and Iberia, with prices starting from $696 and $795, respectively.
Can I find deals for flights from Athens to St. Louis that include hotel bookings?
Yes. In addition to deals on Athens to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Athens to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Athens to St. Louis.
Can I find deals for business class flights from Athens to St. Louis?
Yes. Cheapflights offers flight deals from Athens 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.

See more FAQs

Edwardsville

O'Fallon

Fenton

Swansea

Fairview Heights

Eureka

Maryland Heights

Collinsville

Wentzville

Glencoe

Chesterfield

Alton

Farmington

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Other flights from Athens

Popular flights

St. Louis flight routes

Alternative routes for Athens to St. Louis

Athens to Kansas City flights

Top airline flying from Athens to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,057	Average$1,139	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Find cheap flights from Athens to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Athens to St. Louis

Most accurate provider

Most trusted provider

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

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

Reviews of airlines servicing St. Louis

See what other customers who have flown with United Airlines from Athens to St. Louis have to say. You can also see how each airline compares 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 Athens 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 is the cheapest airline to fly from Athens to St. Louis round-trip?

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Athens to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Athens to St. Louis by cabin class

Find flights from Athens to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Athens and St. Louis flights

Browse other Athens and St. Louis flight options. Last updated on June 11, 2026.

Other flights from Athens

Browse through other flights departing from Athens. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to St. Louis

Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.

Top airline flying from Athens to St. Louis

100% Free

Book with Flexibility

Travel Smart

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

Find cheap flights from Athens to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Athens to St. Louis

Most accurate provider

Most trusted provider

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

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

Reviews of airlines servicing St. Louis

See what other customers who have flown with United Airlines from Athens to St. Louis have to say. You can also see how each airline compares 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 Athens 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 is the cheapest airline to fly from Athens to St. Louis round-trip?

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Athens to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Athens to St. Louis by cabin class

Find flights from Athens to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Athens and St. Louis flights

Browse other Athens and St. Louis flight options. Last updated on June 11, 2026.

Other flights from Athens

Browse through other flights departing from Athens. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to St. Louis

Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.

Top airline flying from Athens to St. Louis

100% Free

Book with Flexibility

Travel Smart