KGS

$337 Find Cheap Flights to Kos

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Kos departing on 9/7. 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 Kos

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

Save 24% 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

Cheapest round-trip
$747
SWISS
Tue 7/7Thu 9/3
JFK - KGS • 1 stop
Cheapest one-way
$337
Multiple Airlines
Mon 9/7
BOS - KGS • 3 stops
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa's three-course meal is a highlight in economy.
SWISS provides free messaging Wi-Fi on long-haul flights.
Expert advice
Expert advice
Expert advice
Expert advice
Top routes
Cheapest
Most popular
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 Kos!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights to Kos

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

Tue, Jul 7 - Thu, Sep 3
SWISS Logo
8:30 pm - 10:10 am
JFK
-
KGS
30h 40m
1 stop
SWISS Logo
11:00 am - 12:50 pm
KGS
-
JFK
32h 50m
1 stop
$747SWISS
Tue, Jul 7 - Thu, Sep 3
SWISS Logo
7:25 pm - 10:10 am
JFK
-
KGS
31h 45m
2 stops
SWISS Logo
11:00 am - 2:20 pm
KGS
-
JFK
34h 20m
2 stops
$782SWISS
Tue, Jul 7 - Thu, Sep 3
Multiple Airlines Logo
5:30 pm - 7:05 pm
JFK
-
KGS
18h 35m
1 stop
Multiple Airlines Logo
11:00 am - 12:50 pm
KGS
-
JFK
32h 50m
1 stop
$816Multiple Airlines
Tue, Jul 7 - Thu, Sep 3
Multiple Airlines Logo
8:30 pm - 7:05 pm
EWR
-
KGS
15h 35m
1 stop
Multiple Airlines Logo
11:00 am - 8:15 pm
KGS
-
EWR
16h 15m
1 stop
$830Multiple Airlines
Thu, Sep 3 - Sat, Sep 12
Austrian Airlines Logo
5:30 pm - 8:50 pm
LAX
-
KGS
17h 20m
2 stops
Austrian Airlines Logo
9:25 pm - 3:15 pm
KGS
-
LAX
27h 50m
2 stops
$973Austrian Airlines
Tue, Jul 28 - Wed, Sep 2
Lufthansa Logo
2:05 pm - 7:05 pm
MCO
-
KGS
22h 00m
2 stops
Lufthansa Logo
1:30 pm - 5:52 pm
KGS
-
MCO
35h 22m
2 stops
$986Lufthansa
Tue, Jul 28 - Wed, Sep 2
Lufthansa Logo
9:45 pm - 7:05 pm
MCO
-
KGS
14h 20m
1 stop
Lufthansa Logo
1:30 pm - 5:52 pm
KGS
-
MCO
35h 22m
2 stops
$988Lufthansa
Thu, Sep 3 - Sat, Sep 12
Austrian Airlines Logo
5:30 pm - 8:50 pm
LAX
-
KGS
17h 20m
2 stops
Austrian Airlines Logo
9:25 pm - 3:15 pm
KGS
-
LAX
27h 50m
2 stops
$999Austrian Airlines
Sun, Jul 12 - Mon, Jul 27
British Airways Logo
6:50 pm - 1:30 pm
TPA
-
KGS
35h 40m
1 stop
British Airways Logo
9:45 pm - 4:50 pm
KGS
-
TPA
26h 05m
1 stop
$1,109British Airways
Fri, Jun 26 - Sat, Jul 4
British Airways Logo
10:50 pm - 7:50 pm
MIA
-
KGS
38h 00m
2 stops
British Airways Logo
2:05 pm - 2:30 pm
KGS
-
MIA
31h 25m
1 stop
$2,857British Airways
Booking Insights

KAYAK's insights & trends for flights to Kos

Get data-powered insights and trends for flights to Kos to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Kos?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Kos was found on the route from Boston, at $747 return. The most popular connection is from Athens to Kos and KAYAK users have found round-trip deals for as low as $92 in the last 3 days.

Expert advice

Expert advice for your flight to Kos

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Emily Zemler

Emily Zemler

Expert on SWISS

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Good to know - Book Cheap Kos Plane Tickets

Cheapest flight$337
Flight from Boston to Kos

When to book flights to Kos

Are your dates flexible? Find out the best times to travel to Kos 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. The information is for flights to Kos based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Kos flights

  • What is the cheapest flight to Kos?

    In the last 3 days, the cheapest flight deal to Kos was found on the route from Boston, at $747 return. The most popular connection is from Athens to Kos and KAYAK users have found round-trip deals for as low as $92 in the last 3 days.

  • How far is Kos Airport from central Kos?

    The distance between Kos Airport and downtown Kos is 13 miles.

  • What is the name of Kos’s airport?

    All flights to Kos land at Kos Airport. The airport code is KGS,and it can also be referred to as Hippocrates, Kos, or Kos Island Intl.

  • How does KAYAK find such low prices on flights to Kos?

    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 to Kos.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Kos?

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

  • What is the Hacker Fare option on flights to Kos?

    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 Kos with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Kos?

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

Top tips for finding cheap flights to Kos

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Kos flight deals.

Reviews of the top 3 airlines flying to Kos

 
See real verified KAYAK customer reviews for airlines flying to Kos. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Kos. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Kos? 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.
7.6
SWISSOverall score based on 1936 reviews
7.4Comfort
6.8Entertainment
7.7Boarding
7.1Food
8.3Crew
Airline reviews

The flight and all amenities were good to excellent. SWISS was awful to deal with. Every step of the way they nickel and dime you. Chose your seats? $14. Change your seats… No accounting for the prior payment. You get billed again. 17 pound restriction on overhead luggage, nonsense. It’s a weight in the plane whether it’s in the overhead or in check baggage. They just milk you for every cent they can and I resent it. The flight was excellent.

8.0 ExcellentAnonymous, May 2026
BOS - ZRH
Read more SWISS reviews

The flight and all amenities were good to excellent. SWISS was awful to deal with. Every step of the way they nickel and dime you. Chose your seats? $14. Change your seats… No accounting for the prior payment. You get billed again. 17 pound restriction on overhead luggage, nonsense. It’s a weight in the plane whether it’s in the overhead or in check baggage. They just milk you for every cent they can and I resent it. The flight was excellent.

plenty of legspace, snacks, no pull face from flight attendants when asking for a wine. Also fast transfer ability at ZRH.

The flight itself was fine, but due to a snow delay my connection to Lisbon was delayed by six hours. Despite this, Swiss Air still managed to lose my luggage. Not acceptable. Someone else on the flight also lost their luggage.

Bad experience overall. Crew did not provide food for our 2 year old (even though we specifically bought a child infant seat for her and literally bought another full price flight), which was unacceptable. And we had to pay $310 each way to carry our ski equipment even though they advertise it as something that is free. Tickets were purchased the same way as usual, but they told us we had Economy Light tickets (I never elected to have such seats). Just plain manipulation and false advertisment. Very disappointed overall about this airline.

The trip was great until my luggage was lost on transfer from United to Swiss. It took Swiss 3 days to get my luggage to me though it was located almost immediately.

Horrible!! The WiFi was not working, the food was awful

We’ve never been more uncomfortable on a flight than we have on this particular one. The seats in front of us reclined so far back that when the person reclined their seat of broccoli, it almost hit me in the face and left me with literally no room to move that said I had to recline my seed in which made the person behind me upset. It seemed like the seats also would recline without even pressing the button in the armrest and would unrecline as well for that same reason, and it also seemed that some seats reclined more than others. The bottom cushions of the seat were so thin that even after one hour of an 11 hour flight, our tailbones were so sore. It seemed like an overall old airplane. It also didn’t have individual air vents and it was extremely hot the entire flight. Several passengers were commenting on how hot it was. The breakfast was some kind of flavorless triangle, puffy egg, laying in a watery bed of steamed peppers and onions and spinach. It was not appetizing at all. The flight crew was extremely nice so that was a nice thing this flight attendant. They let us try different types of Swiss sodas, which was really nice and the dinner was actually delicious but still overall given the other considerations. It was pretty much a miserable flight without basic seat comfort.

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

Even though I paid extra for more room, we were very cramped and the seats were hard. Also, when we checked in they did not post the gate we were to arrive at even though we were half an hour away from boarding. The agent did not know either. Actually, the flight from Porto to Zurich did to have the gate posted, and there were very few agents in the boarding areas who could help us. I would never fly Swiss Air again.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

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.

Someone switched seats in business class so they could sit together and we were left apart (3). Very disappointing. Staff did nothing

Somone switched seats to sit near friend causing us to be disconnected (3) business class. Very disappointed. Staff did nothing.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

1st class seats NOT REALLY 1st class or business class but like premier economy. Should be listed as such or named something else. I have flown 1st class with other airlines and they are nothing like it at all.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

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.

Traveling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Marmari

Everything you need to know for your flight to Kos

Information on the airport you'll fly into in Kos