STL - ATH

$296 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 10/6. 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

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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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

Mon, Nov 3 - Wed, Nov 19
Air Canada Logo
6:30 am - 11:10 amSTL-ATH
20h 40m2 stops
Air Canada Logo
11:55 am - 3:29 pmATH-STL
35h 34m2 stops
$484Air Canada
Find Deal
Mon, Nov 3 - Wed, Nov 19
Multiple Airlines Logo
6:30 am - 11:10 amSTL-ATH
20h 40m2 stops
Multiple Airlines Logo
6:15 am - 1:55 pmATH-STL
15h 40m1 stop
$494Multiple Airlines
Find Deal
Mon, Nov 3 - Wed, Nov 19
Delta Logo
6:00 am - 10:35 amSTL-ATH
20h 35m1 stop
Delta Logo
12:50 pm - 3:50 pmATH-STL
35h 00m1 stop
$531Delta
Find Deal
Sun, Mar 15 - Thu, Mar 26
United Airlines Logo
4:05 pm - 10:10 amSTL-ATH
35h 05m1 stop
United Airlines Logo
12:10 pm - 3:29 pmATH-STL
34h 19m1 stop
$537United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
Delta Logo
6:00 am - 1:35 pmSTL-ATH
23h 35m2 stops
Delta Logo
12:50 pm - 9:46 amATH-STL
28h 56m2 stops
$547Delta
Find Deal
Wed, Jan 7 - Fri, Jan 16
Lufthansa Logo
3:50 pm - 4:35 pmSTL-ATH
16h 45m1 stop
Lufthansa Logo
6:05 am - 10:58 pmATH-STL
24h 53m2 stops
$564Lufthansa
Find Deal
Tue, Mar 3 - Mon, Mar 9
British Airways Logo
5:49 pm - 7:30 pmSTL-ATH
17h 41m2 stops
British Airways Logo
8:10 pm - 9:48 pmATH-STL
32h 38m2 stops
$571British Airways
Find Deal
Fri, Oct 31 - Fri, Nov 7
Lufthansa Logo
6:43 pm - 1:40 amSTL-ATH
23h 57m2 stops
Lufthansa Logo
6:05 am - 1:55 pmATH-STL
15h 50m1 stop
$603Lufthansa
Find Deal
Sun, Mar 15 - Thu, Mar 26
British Airways Logo
6:29 pm - 7:10 pmSTL-ATH
17h 41m2 stops
British Airways Logo
7:50 pm - 2:32 pmATH-STL
49h 42m2 stops
$604British Airways
Find Deal
Tue, Mar 3 - Mon, Mar 9
United Airlines Logo
8:21 am - 12:55 pmSTL-ATH
20h 34m2 stops
United Airlines Logo
12:25 pm - 9:10 pmATH-STL
15h 45m1 stop
$608United Airlines
Find Deal

Everything you should know

Top airlines
Air Canada
Cheapest • from $484 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 27% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$484
Overall average: $917
Air Canada
Mon 11/3Wed 11/19
STL - ATH • 2 stops
Cheapest one-way
$296
Typical prices: $552-725
Multiple Airlines
Mon 10/6
STL - ATH • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Athens!
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.

What’s the cheapest day of the week to fly from St. Louis to Athens?

The average price of all round-trip flights from St. Louis to Athens clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Athens, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

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 $750 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,414 and $1,346 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 2 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$296
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 4% 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 $296 for a one-way ticket and $484 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, Star Alliance, and oneworld 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 $991 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 $999 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 7961 reviews
8.5Crew
7.9Entertainment
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Short flight. Everything was fine except the flight was delayed twice for a total of an hour.

My flight from New York to Canada and Canada to Brisbane was canceled, so I had to take united airlines instead flight from New York to Dubai then layover in Dubai 8 hours then from Dubai to Brisbane it was extremely difficult for me , it was a nightmare flying with Canadian airlines unfortunately.

I found the boarding easy and my seat was very comfortable as I had a lot of leg room. I am not too happy that I no longer have lounge access even though I used to get it with my TD credit card.

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Real smooth and easy, Real good leg room in coach!

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Very bad, flight was cancelled due to strike and staff was unable to rebook us

I liked everything BUT the temperature. It was freezing and now I am sick.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Three major things that led to my low rating, 1. Internet wasn't available for the whole time, and 2. TV became available way into flight, after numerous system reboots, and 3. Food is not good at all.

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

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

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