STL - ATH

$349 Find Cheap Flights from St. Louis to Athens

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Athens departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Athens

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Athens.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Athens.
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Everything you should know

Cheapest round-trip
$835
Typical prices: $1,071-$808
British Airways
Tue 8/25Thu 9/3
STL - ATH • 1 stop
Cheapest one-way
$349
British Airways
Sun 8/16
STL - ATH • 1 stop
Top airlines
Cheapest • from $835 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Athens. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,448 (round-trip)
Shortest trip • 13h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Athens!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Athens 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 St. Louis to Athens

Tue, Aug 25 - Thu, Sep 3
British Airways Logo
9:35 pm - 2:10 am
STL
-
ATH
20h 35m
1 stop
British Airways Logo
2:05 pm - 10:25 pm
ATH
-
STL
16h 20m
1 stop
$835British Airways
Tue, Aug 25 - Thu, Sep 3
British Airways Logo
9:35 pm - 1:05 pm
STL
-
ATH
31h 30m
1 stop
British Airways Logo
11:15 am - 11:51 pm
ATH
-
STL
20h 36m
1 stop
$836British Airways
Tue, Aug 25 - Thu, Sep 3
Multiple Airlines Logo
9:35 pm - 7:05 pm
STL
-
ATH
13h 30m
1 stop
Multiple Airlines Logo
6:55 am - 7:14 pm
ATH
-
STL
20h 19m
2 stops
$849Multiple Airlines
Tue, Aug 25 - Thu, Sep 3
British Airways Logo
9:35 pm - 7:05 pm
STL
-
ATH
13h 30m
1 stop
British Airways Logo
7:25 am - 8:19 pm
ATH
-
STL
20h 54m
2 stops
$861British Airways
Sun, Aug 16 - Fri, Sep 11
Air Canada Logo
12:10 pm - 1:25 pm
STL
-
ATH
17h 15m
1 stop
Air Canada Logo
12:10 pm - 3:38 pm
ATH
-
STL
35h 28m
2 stops
$871Air Canada
Wed, Aug 12 - Tue, Sep 15
British Airways Logo
9:35 pm - 7:00 pm
STL
-
ATH
13h 25m
1 stop
British Airways Logo
8:00 pm - 7:30 pm
ATH
-
STL
31h 30m
1 stop
$873British Airways
Wed, Aug 12 - Tue, Sep 15
Air Canada Logo
12:10 pm - 10:10 am
STL
-
ATH
14h 00m
1 stop
Air Canada Logo
1:10 pm - 12:13 pm
ATH
-
STL
31h 03m
2 stops
$876Air Canada
Sat, Aug 15 - Wed, Sep 9
United Airlines Logo
5:32 pm - 10:35 am
STL
-
ATH
33h 03m
1 stop
United Airlines Logo
1:10 pm - 2:00 pm
ATH
-
STL
32h 50m
1 stop
$878United Airlines
Wed, Aug 12 - Tue, Sep 15
Air Canada Logo
1:18 pm - 1:25 pm
STL
-
ATH
16h 07m
2 stops
Air Canada Logo
1:10 pm - 12:13 pm
ATH
-
STL
31h 03m
2 stops
$881Air Canada
Sun, Aug 16 - Fri, Sep 11
Air Canada Logo
8:55 am - 2:55 pm
STL
-
ATH
22h 00m
2 stops
Air Canada Logo
12:10 pm - 3:38 pm
ATH
-
STL
35h 28m
2 stops
$884Air Canada
Booking Insights

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

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

How much is a round-trip flight from St. Louis to Athens?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Athens departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Athens, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Athens is January, where tickets cost $529 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,396 and $1,274 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Athens, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Athens, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$349
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from St. Louis to Athens

When to book flights from St. Louis to Athens

Are your dates flexible? Find out the best times to travel from St. Louis to Athens 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 St. Louis to Athens

  • What is the cheapest flight from St. Louis to Athens?

    In the last 3 days, the lowest price for a flight from St. Louis to Athens was $349 for a one-way ticket and $835 for a round-trip.

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

    A passport is required to fly from St. Louis to Athens.

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

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

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

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Athens, with SkyTeam being the most commonly used for this route.

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

    Montreal is the most popular layover city among KAYAK users traveling from St. Louis to Athens.

  • Which is the best airline for flights from St. Louis to Athens, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from St. Louis to Athens are Delta and KLM. With an average price for the route of $974 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,043 and an overall rating of 7.8.

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

    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 St. Louis to Athens.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Athens from St. Louis 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 St. Louis to Athens?

    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 Athens with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and ATH 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 St. Louis to Athens?

    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 Athens from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from St. Louis to Athens

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Athens. 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 St. Louis to Athens? 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.
7.9
DeltaOverall score based on 8448 reviews
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
8.5Crew
Airline reviews

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

4.0 OkayLifia, Apr 2026
BOS - SEA
Read more Delta reviews

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Landed without a gate ready. Plane is extremely old and dirty.

All the amenities was wonderful, if they could keep their prices that low. I'd fly with them all the time.

Very old plane with no inflight entertainment. I purchased the internet pass and it was nearly unusable.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

It was good that our flight left early. It was a nice smooth flight and landing.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Worst airline in the world. They downgraded me from business class to economy with no compensation.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Even if you wait for connecting passengers you should not be an hour late departing waiting their luggage. Your passengers may have connections in the other end and you harm them.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

WiFi wasn’t available to economy until the end of the flight.

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

Information on your arrival and departure airports