STL - ATH

$315 Find Cheap Flights from St. Louis to Athens - Compare and Save

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 7/19. 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
$814
Typical prices: $840-$1,111
Multiple Airlines
Tue 8/25Thu 9/3
STL - ATH • 1 stop
Cheapest one-way
$315
Typical prices: $626-$1,367
British Airways
Sun 7/19
STL - ATH • 1 stop
Top airlines
Cheapest • from $758 (round-trip)
Best reviews • 7.4 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 $1,461 (round-trip)
Shortest trip • 13h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 42% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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
Multiple Airlines Logo
12:10 pm - 10:10 am
STL
-
ATH
14h 00m
1 stop
Multiple Airlines Logo
1:10 pm - 2:02 pm
ATH
-
STL
32h 52m
1 stop
$814Multiple Airlines
Sun, Aug 16 - Tue, Sep 1
Air Canada Logo
12:10 pm - 10:10 am
STL
-
ATH
14h 00m
1 stop
Air Canada Logo
12:10 pm - 6:42 pm
ATH
-
STL
14h 32m
1 stop
$817Air Canada
Tue, Aug 25 - Thu, Sep 3
Air Canada Logo
12:10 pm - 10:10 am
STL
-
ATH
14h 00m
1 stop
Air Canada Logo
12:10 pm - 3:38 pm
ATH
-
STL
35h 28m
2 stops
$822Air Canada
Sat, Aug 15 - Tue, Sep 15
United Airlines Logo
3:32 pm - 10:35 am
STL
-
ATH
35h 03m
1 stop
United Airlines Logo
3:25 pm - 2:00 pm
ATH
-
STL
30h 35m
1 stop
$823United Airlines
Wed, Aug 12 - Tue, Sep 15
United Airlines Logo
12:10 pm - 1:25 pm
STL
-
ATH
17h 15m
1 stop
United Airlines Logo
3:25 pm - 3:38 pm
ATH
-
STL
32h 13m
2 stops
$826United Airlines
Sun, Jul 26 - Tue, Sep 22
Air Canada Logo
12:10 pm - 10:10 am
STL
-
ATH
14h 00m
1 stop
Air Canada Logo
1:10 pm - 3:38 pm
ATH
-
STL
34h 28m
2 stops
$827Air Canada
Sat, Aug 15 - Tue, Sep 15
United Airlines Logo
5:30 pm - 10:35 am
STL
-
ATH
33h 05m
1 stop
United Airlines Logo
3:25 pm - 11:57 am
ATH
-
STL
28h 32m
2 stops
$828United Airlines
Sat, Aug 29 - Fri, Sep 11
Air Canada Logo
2:40 pm - 10:10 am
STL
-
ATH
35h 30m
2 stops
Air Canada Logo
12:10 pm - 3:38 pm
ATH
-
STL
35h 28m
2 stops
$830Air Canada
Wed, Aug 12 - Thu, Sep 10
Air Canada Logo
7:25 am - 10:10 am
STL
-
ATH
18h 45m
2 stops
Air Canada Logo
1:10 pm - 12:02 pm
ATH
-
STL
30h 52m
2 stops
$831Air Canada
Sat, Aug 15 - Thu, Sep 10
Air Canada Logo
2:40 pm - 10:10 am
STL
-
ATH
35h 30m
2 stops
Air Canada Logo
3:25 pm - 12:02 pm
ATH
-
STL
28h 37m
2 stops
$834Air 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 February, where tickets cost $548 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,657 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 19 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$315
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly with an average 7% 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 5 days, the lowest price for a flight from St. Louis to Athens was $315 for a one-way ticket and $758 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 $965 and an overall rating of 7.8, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,170 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.
7.4
United AirlinesOverall score based on 9908 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

8.0 ExcellentDonna, May 2026
IAD - ATH
Read more United Airlines reviews

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

United needs to figure out its Economy PLUS standards; its better than economy but that's not saying much. It seems like United stripped away all the basics for an international flight (such as In Seat entertainment) and repackaged some of them as plus. Would not fly United internationally again.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in flight WiFi Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay (especially this much) for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a terrible attitude for no reason, nor will they act the way this woman did. Unacceptable.

Good but I don’t received my bags yet is been 5days still no update

The service to/from the airport/plane (wheelchair assistance for my mother in law) was exceptional. The staff was super friendly and courteous. The staff on the plane was also very nice. The food quality could have been better (mashed chicken sandwich).

They had the small delay so they thought I wouldn't make my connection and they canceled my whole flight from the connection onwards even though I made it to the connection I was there on the boarding but I couldn't board to my next flight because the airline company canceled my flight before I even got to the second airport They didn't help in arranging a new flight they told me I could put a claim somewhere at some point which made my frustration even worse no hotel was allocated no notification of any kind and all I heard was the sentence we are not responsible we didn't cancel it someone else is responsible go look for it

Good flight, slightly cramped as the seats are very close together

Friendlier staff who are nice to the elderly who need assistance

Service was great. Flight was delayed an hour which made our connection very tight and stressful. But we fortunately made it.

The overall experience was very good and the flight left early. The checkin process was efficient and the staff was helpful and courteous. Of course, the room between seats could always be a little bigger.....

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

The layover in Montreal in the lounge was long and nothing special.

The fact that you are sending me a survey asking me about a connection that was missed speaks to the level customer service that was present throughout this trip.

Lufthansa has a bag policy unique to Lufthansa. We all had a small carry on and a backpack (personal item) that we carried with us through multiple other connecting flights, no problem. With Lufthansa we were charged 80 euros each for the carry on at the gate, for this one flight. When asked they said they made an announcement… problem being that we had just arrived to the gate from a connecting flight and didn’t hear an announcement. While we were standing at the counter paying the ridiculous fee several other people were stopped, while countless others boarded with the same type of luggage and were not stopped. Crazy. Good news though, when we got on the plane half of the overhead bins were empty! After an already horrible experience the lady at the counter was also terrible, so that helped round things out.

Delayed over 2 hours. Bring your own snacks or prepare to pay. No entertainment and no plug plugs for charging.

Boarding delayed 1.5 hours. Ended up sick because of all the delays and lines waiting around airport and boarding.

They failed to make sure all luggage made it onto the flight. I had to spend a week on vacation with no clothes.

No internet for most of the flight. Very narrow seats. Food was bad. Flight was nearly an hour late with perfect weather, crew offered no explanation or compensation.

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

The The check in process was terrible on both ends. It was not clear if we should use the United, Lufthansa, or Aragrant number. It took over an hour to check in on the front end – and then at return the Lufthansa online check in failed multiple times and only after two calls to their phone number could we accomplish the task. The link to the Kayak site provided no access for check in. This difficulty and ambiguity on both ends will affect our interest in using Kayak for foreign travel in the future.

Gate agent required us to check our perfectly legal carry on bags due to a supposed lack of overhead space. After seating, we saw nothing but empty space in our seating area. This caused luggage to miss connection in Athens, and we had no bags in Mykonos. Totally avoidable and unacceptable. My last U A flight !

I missed my connection. Lufthansa did a great job helping me get a new flight. My luggage arrived on the same plane as I did. That was astonishing.

Food was mediocre. In flight entertainment lacked live TV. Crew was fantastic. Plane very comfortable if a bit worn.

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

Flight got cancelled and we did not get an email till the last minute. They rebooked us on British Airways for 6 hours later and did not inform us. We drove all the way to the airport for the AA desk attended to take a while to figure out our flights were cancelled and rebooked. British airway attendants did not show up till 4 hours later! Really poor customer service

It's hard to tell where to plug in electronics, and the port on my seat didn't work. Their entertainment system was down. Vegetarian food options were tasty. Friendly, helpful flight attendants.

Our flight from ORD was cancelled and BA rebooked is on a flight that originated before the time that they booked us on it. They did not realize we were already arrived in Chicago. Then American Airlines helped us get checked in to the new flight (the one BA assigned to us) which flight we did take although it was delayed about 2 hours, and our assigned seats that we paid for - on the original flight- were lost we did at least get to sit together. It was not too painful for all the changes and we made it to the UK alright though all in all with all the delays and cancellations the flight took about 20 hours to get us here.

though there was space in the cabin they asked us to check in our trolleys. As a result lots of things arrived damaged in Larnaca. They were fragile. When we asked the attendants why that.....they said talk to the captain!!! Unbelievable!

Our flight BA638 was cancelled with very short notice. It was supposed to depart at 7:25am. We had left Chichester at 3:30am in order to make the flight, and we were notified of the cancellation while en route to LHR. We were told the cancellation was necessary because a plane had not been scheduled to be at LHR for this flight! We were rescheduled to BA636. This flight was supposed to depart at 11:00am but didn't actually take off until ~12:30pm. Consequently we arrived in Athens several hours late, missing out on half a day of our sightseeing time. We had booked transport with MyTransfers to pick us up at the Athens airport and drive us to our Hotel Adonis. I was unable to get a refund for this service because our flight was so delayed. They required 24 hour notice of pick up time changes. I instead had to pay for a taxi at the airport. I have tried to fill out a request for compensation online but have been unsuccessful. How can I get help for filing a claim?

They could do everything better!! From the rickety plane to the flight attendants, when American Airlines is operated by British Airways, their standards are lowered! It’s like Macy’s, operated by Walmart!!

It was ok but not at a business class standard No entertainment system available which is poor for a 3+ hour journey Food was ok and service was good though

Late boarding with inconsistent excuses. Bulk head seats were very small and uncomfortable. 1 tiny candy bar and a water were only food provisions. Food for purchase was unavailable.

Boarding ,checking in was easy and quick . Comfort was not good.

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

Information on your arrival and departure airports