ATH - STL

Find cheap flights from Athens to St. Louis

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Athens to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Athens to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Athens and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
London (LHR)
Cheapest • Avg $1,023 (round-trip)
Washington, D.C. (IAD)
Shortest trip • 14h 48m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Athens to St. Louis (ATH-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Athens to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Athens to St. Louis

Multiple Airlines Logo
ATH
-
STL
5692 mimulti-stop
Multiple Airlines Logo
STL
-
ATH
5692 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Athens to St. Louis flights

Get data-powered insights and trends into flights from Athens to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Athens to St. Louis?

Percentage of 1-stop round-trip flights from Athens to St. Louis chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Montreal (YUL) is the top choice – 44% of KAYAK users who clicked on 1-stop flights from Athens to St. Louis picked an itinerary connecting there.

What is the cheapest layover airport when flying from Athens to St. Louis?

Average round-trip price for 1-stop flights from Athens to St. Louis clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via London (LHR) offer the most affordable fares, with an average round-trip price of $1,023.

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

Shortest average total travel time for 1-stop one-way flights from Athens to St. Louis via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Washington, D.C. (IAD) for the shortest journey. The average one-way travel time for flights connecting there is 14h 48m.

Which layover airport has the quickest connection when flying from Athens to St. Louis?

Average layover duration at different layover airports for 1-stop one-way flights from Athens to St. Louis, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Washington, D.C. (IAD) often has the shortest layovers from Athens to St. Louis, with an average of 1h 12m.

Find deals

When to book flights from Athens to St. Louis

Are your dates flexible? Find out the best times to travel from Athens to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Athens to St. Louis

  • Do I need a passport to fly between Athens and St. Louis?

    Yes

  • Which aircraft models fly most regularly from Athens to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Athens to St. Louis?

    Star Alliance is the only airline alliance operating flights between Athens and St. Louis.

  • How does KAYAK find such low prices on flights from Athens to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Athens to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Athens to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Athens is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Athens to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Athens with another airline. Booking your flights between Athens and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Athens to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Athens up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Athens to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Athens to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Athens to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9431 reviews
6.6Food
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
Airline reviews

OK, we were delayed and had to de plane and reboard.

6.0 GoodJamie, Mar 2026
LAX - EWR
Read more United Airlines reviews

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Terrible experience! delay 2 time and say i dont have ticket

Both my flight where delayed Had 25min to make it to my transfer flight

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

Everything was on time and service on the flight was great!

The boarding in Buenos Aires (at the on ramp) was not great. They had to check every carry on. Not a United problem but was a Buenos Aires problem.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

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

Information on your arrival and departure airports

Athens (ATH)
St. Louis (STL)