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$585+ Cheap flights from John F Kennedy Intl, NY (JFK) to Kos (KGS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
JFK — KGS
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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Cheap flight deals from John F Kennedy Intl to Kos

Discover tips and strategies to find the most affordable flight options for your journey from John F Kennedy Intl (JFK) to Kos (KGS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 7, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$585
(Mytrip)
Provider with most accurate pricing for New York John F Kennedy Intl-Kos flight deals.
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Provider most trusted by Cheapflights users for New York John F Kennedy Intl-Kos flights.
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From New York John F Kennedy Intl to Kos
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Find flight deals from John F Kennedy Intl to Kos

Cheapest flights from John F Kennedy Intl to Kos
Explore the most affordable flight options available from John F Kennedy Intl to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.

This Mytrip deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/219:00 pmJFK - KGS
2 stops28h 05mMultiple Airlines
Sat 2/284:40 pmKGS - JFK
2 stops27h 25mMultiple Airlines
Deal found 1/7$585
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:25 pmJFK - KGS
2 stops33h 20mMultiple Airlines
Tue 5/195:10 pmKGS - JFK
1 stop25h 15mMultiple Airlines
Deal found 1/7$589
This SWISS deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:25 pmJFK - KGS
2 stops17h 30mSWISS
Sat 6/278:45 pmKGS - JFK
1 stop23h 05mSWISS
Deal found 1/6$1,070
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/191:55 pmJFK - KGS
1 stop11h 10mMultiple Airlines
Sat 6/2710:25 pmKGS - JFK
1 stop31h 50mMultiple Airlines
Deal found 1/6$1,095
This KAYAK deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/154:15 pmJFK - KGS
1 stop20h 25mSWISS
Sat 6/278:45 pmKGS - JFK
1 stop23h 05mSWISS
Deal found 1/7$1,107
This KAYAK deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:30 pmJFK - KGS
2 stops19h 15mBrussels Airlines
Sat 6/278:45 pmKGS - JFK
2 stops30h 20mBrussels Airlines
Deal found 1/6$1,241
This Arangrant deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:30 pmJFK - KGS
1 stop18h 35mMultiple Airlines
Wed 8/2611:25 amKGS - JFK
2 stops15h 40mMultiple Airlines
Deal found 1/6$1,422

Cheapflights Fare Finder

 
Customize your flight search to find flights from John F Kennedy Intl to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 7, 2026.
Use the filters below to find and compare flights from New York John F Kennedy Intl Airport to Kos that are best for you.

Fly from

John F Kennedy Intl

Fly to

Kos

Route

Depart

Return

Price

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Thu 2/19

9:00 pm-8:05 am

2 stops28h 05m

Kos

Thu 2/26

12:35 pm-1:05 pm

2 stops31h 30m

$627

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Fri 2/20

5:30 pm-4:10 pm

2 stops15h 40m

Kos

Tue 2/24

8:35 pm-1:50 pm

2 stops24h 15m

$667

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Fri 6/19

7:25 pm-7:55 pm

2 stops17h 30m

Kos

Sat 6/27

8:45 pm-12:50 pm

1 stop23h 05m

$1,070

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Fri 6/19

1:55 pm-8:05 am

1 stop11h 10m

Kos

Sat 6/27

10:25 pm-11:15 pm

1 stop31h 50m

$1,095

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Mon 6/15

4:15 pm-7:40 pm

1 stop20h 25m

Kos

Sat 6/27

8:45 pm-12:50 pm

1 stop23h 05m

$1,107

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Tue 6/16

4:15 pm-7:55 pm

1 stop20h 40m

Kos

Sat 6/27

8:45 pm-12:50 pm

1 stop23h 05m

$1,107

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Compare providers for flights from John F Kennedy Intl to Kos

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from John F Kennedy Intl to Kos in January.
ProviderPrice AccuracyTrust Score*
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New York John F Kennedy Intl Airport-Kos flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on New York John F Kennedy Intl Airport-Kos flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from New York John F Kennedy Intl Airport-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New York John F Kennedy Intl Airport-Kos flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New York John F Kennedy Intl Airport-Kos flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from John F Kennedy Intl to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from John F Kennedy Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated January 7, 2026.
Get a feel of what it's like to fly with SWISS, Lufthansa, and British Airways from New York John F Kennedy Intl Airport to Kos by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,840 reviews

Crew

8.3

Entertainment

6.8

Overall

7.5

Comfort

7.4

Boarding

7.7

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
SWISS
7.5
Good
1,840 reviews
SWISS
7.5
Good
1,840 reviews

Crew

8.3

Entertainment

6.8

Overall

7.5

Comfort

7.4

Boarding

7.7

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
Lufthansa
6.8
Okay
7,692 reviews
SWISS
7.5
Good
1,840 reviews

Crew

8.3

Entertainment

6.8

Overall

7.5

Comfort

7.4

Boarding

7.7

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
British Airways
6.7
Okay
7,657 reviews
SWISS
7.5
Good
1,840 reviews

Crew

8.3

Entertainment

6.8

Overall

7.5

Comfort

7.4

Boarding

7.7

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.

Related info for your journey

Find useful and relevant information for your journey from John F Kennedy Intl to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kos from New York John F Kennedy Intl?

    If you book a flight to Kos from New York John F Kennedy Intl, you will be flying to Kos, which is the city’s only airport. Kos (KGS) is located 12.8 mi from the center of Kos. There are 0 flights from New York John F Kennedy Intl to Kos per day from 3 different airlines.

  • What are the cheapest airlines flying from New York John F Kennedy Intl Airport to Kos round-trip?

    SWISS, at $501, was found to be the cheapest airline from New York John F Kennedy Intl Airport to Kos.Alternate airlines to your destination round-trip include Lufthansa and British Airways.

  • Can I find deals for flights from John F Kennedy Intl to Kos that include hotel bookings?

    Yes. In addition to deals on John F Kennedy Intl to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from John F Kennedy Intl to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from John F Kennedy Intl to Kos.

  • Can I find deals for business class flights from John F Kennedy Intl to Kos?

    Yes. Cheapflights offers flight deals from John F Kennedy Intl to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 3 airlines flying from John F Kennedy Intl to Kos

Discover the top 3 airlines that operate flights from John F Kennedy Intl to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$501Average$829FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$625Average$920FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$730Average$780FlexibilityNo cancel feeOn-time70%

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