KGS

$292 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 4/27. 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
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Everything you should know

Cheapest round-trip
$619
Multiple Airlines
Tue 4/28Tue 5/5
JFK - KGS • 1 stop
Cheapest one-way
$292
Multiple Airlines
Mon 4/27
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
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Cheapest
Most popular
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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 Kos!
Flight Deals
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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, Apr 28 - Tue, May 5
Multiple Airlines Logo
12:55 pm - 8:05 am
JFK
-
KGS
12h 10m
1 stop
Multiple Airlines Logo
11:05 am - 7:10 pm
KGS
-
JFK
39h 05m
2 stops
$619Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
12:55 pm - 8:05 am
JFK
-
KGS
12h 10m
1 stop
Multiple Airlines Logo
8:35 am - 11:25 am
KGS
-
JFK
33h 50m
1 stop
$626Multiple Airlines
Fri, Apr 3 - Mon, Apr 13
SWISS Logo
4:15 pm - 8:00 pm
JFK
-
KGS
20h 45m
1 stop
SWISS Logo
7:35 pm - 12:50 pm
KGS
-
JFK
24h 15m
2 stops
$784SWISS
Fri, Apr 3 - Mon, Apr 13
SWISS Logo
9:45 pm - 8:00 pm
EWR
-
KGS
15h 15m
1 stop
SWISS Logo
7:35 pm - 8:15 pm
KGS
-
EWR
31h 40m
2 stops
$827SWISS
Thu, Sep 3 - Sat, Sep 12
Austrian Airlines Logo
8:15 am - 8:50 pm
LAX
-
KGS
26h 35m
2 stops
Austrian Airlines Logo
9:25 pm - 3:15 pm
KGS
-
LAX
27h 50m
2 stops
$1,108Austrian Airlines
Sun, Sep 6 - Sat, Sep 12
Austrian Airlines Logo
4:20 pm - 8:00 pm
ORD
-
KGS
19h 40m
1 stop
Austrian Airlines Logo
9:25 pm - 5:00 pm
KGS
-
ORD
27h 35m
2 stops
$1,121Austrian Airlines
Tue, Sep 8 - Sat, Sep 19
Lufthansa Logo
10:20 pm - 7:05 pm
IAD
-
KGS
13h 45m
1 stop
Lufthansa Logo
9:40 am - 4:05 pm
KGS
-
IAD
13h 25m
1 stop
$1,220Lufthansa
Tue, Sep 8 - Sat, Sep 19
Lufthansa Logo
10:20 pm - 7:05 pm
IAD
-
KGS
13h 45m
1 stop
Lufthansa Logo
9:40 am - 9:10 pm
KGS
-
IAD
18h 30m
2 stops
$1,229Lufthansa
Wed, Jun 10 - Mon, Jul 27
British Airways Logo
6:50 pm - 8:45 pm
TPA
-
KGS
18h 55m
1 stop
British Airways Logo
9:40 pm - 4:50 pm
KGS
-
TPA
26h 10m
1 stop
$1,265British Airways
Wed, Jun 10 - Mon, Jul 27
British Airways Logo
1:53 pm - 8:45 pm
TPA
-
KGS
23h 52m
2 stops
British Airways Logo
9:40 pm - 4:50 pm
KGS
-
TPA
26h 10m
1 stop
$1,308British 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 $619 return. The most popular connection is from Athens to Kos and KAYAK users have found round-trip deals for as low as $86 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
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.

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.

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$292
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 $619 return. The most popular connection is from Athens to Kos and KAYAK users have found round-trip deals for as low as $86 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.
7.5
SWISSOverall score based on 1901 reviews
8.3Crew
7.4Comfort
7.7Boarding
6.8Entertainment
7.1Food
Airline reviews

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.

6.0 GoodSonja, Jan 2026
BOS - ZRH
Read more SWISS reviews

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

Zürich to Boston was great. Nice to Zurich was not bad

I can’t even the whole trip was a catastrophe

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.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good staff members with sincere passion and responsibility in their job.

We paid for Business Class seats, but system did not have us and they were not available.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

Traveling to a place near Kos?

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Marmari

Everything you need to know for your flight to Kos

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