HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kos

$556+ Cheap flights from Newark (EWR) 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — KGS
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Newark to Kos with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Newark to Kos

Best flights from Newark to Kos
Discover carefully curated flight deals from Newark to Kos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This Mytrip deal was found by Cheapflights users on 12/27. 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.
Tue 2/1010:00 pmEWR - KGS
2 stops27h 05mMultiple Airlines
Tue 2/178:35 pmKGS - EWR
2 stops29h 30mMultiple Airlines
Deal found 12/27$556
This Expedia deal was found by Cheapflights users on 12/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2512:45 pmEWR - KGS
2 stops19h 25mSWISS
Thu 9/311:00 amKGS - EWR
1 stop16h 15mSWISS
Deal found 12/26$951
This Aegean Airlines deal was found by Cheapflights users on 12/25. 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 Aegean Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:55 pmEWR - KGS
1 stop25h 55mAegean Airlines
Fri 5/19:20 amKGS - EWR
1 stop19h 00mAegean Airlines
Deal found 12/25$1,106
This Priceline deal was found by Cheapflights users on 12/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:00 pmEWR - KGS
2 stops27h 05mMultiple Airlines
Mon 2/168:35 pmKGS - EWR
2 stops30h 55mMultiple Airlines
Deal found 12/26$574
This oojo deal was found by Cheapflights users on 12/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:40 pmEWR - KGS
1 stop20h 10mMultiple Airlines
Thu 9/311:00 amKGS - EWR
1 stop16h 15mMultiple Airlines
Deal found 12/26$978

Find flight deals from Newark to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) 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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$556
(Mytrip)
Provider with most accurate pricing for Newark-Kos flight deals.
Search Deals
Provider most trusted by Cheapflights users for Newark-Kos flights.
Search Deals
From Newark to Kos
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Newark 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 December 28, 2025.
Use the filters below to find and compare flights from Newark Airport to Kos that are best for you.

Fly from

Newark

Fly to

Kos

Route

Depart

Return

Price

NewarkKos

EWR - KGS

EWRKGS

Newark

Tue 2/10

10:00 pm-8:05 am

2 stops27h 05m

Kos

Tue 2/17

8:35 pm-7:05 pm

2 stops29h 30m

$556

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 2/9

10:00 pm-8:05 am

2 stops27h 05m

Kos

Mon 2/16

8:35 pm-8:30 pm

2 stops30h 55m

$574

NewarkKos

EWR - KGS

EWRKGS

Newark

Thu 6/25

12:45 pm-3:10 pm

2 stops19h 25m

Kos

Thu 9/3

11:00 am-8:15 pm

1 stop16h 15m

$951

NewarkKos

EWR - KGS

EWRKGS

Newark

Thu 6/25

5:40 pm-8:50 pm

1 stop20h 10m

Kos

Thu 9/3

11:00 am-8:15 pm

1 stop16h 15m

$978

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 4/27

11:55 pm-8:50 am

1 stop25h 55m

Kos

Fri 5/1

9:20 am-9:20 pm

1 stop19h 00m

$1,106

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Compare providers for flights from Newark 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 Newark to Kos in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*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 Newark Airport-Kos flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Newark Airport-Kos flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Newark Airport-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Newark Airport-Kos flights, Cheapflights users trust eDreams the most. eDreams 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 Newark 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 Newark to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Newark 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 December 28, 2025.
Read reviews from past customers who have flown SWISS and Lufthansa from Newark Airport to Kos. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,824 reviews

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.3

Boarding

7.7

Overall

7.5

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
1,824 reviews
SWISS
7.5
Good
1,824 reviews

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.3

Boarding

7.7

Overall

7.5

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
7,653 reviews
SWISS
7.5
Good
1,824 reviews

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.3

Boarding

7.7

Overall

7.5

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 Newark 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 Newark?

    For a flight from Newark to Kos, you will be flying into Kos. Kos (KGS) is just 12.8 mi from the center of the city. Kos is the only Kos airport and it handles 0 inbound flights from Newark per day. 2 airlines have flights to Kos from Newark on a regular basis.

  • How long is the flight from Newark Airport to Kos?

    For as low as $951, SWISS can have you in Kos from Newark Airport in 19h 25m. Airlines will cover a distance of 5124 mi.

  • What are the cheapest airlines flying from Newark Airport to Kos round-trip?

    Our cheapest airline available from Newark Airport to Kos is SWISS. Our recent data shows that you can find tickets from as low as $505 on this airline. An additional option worth looking into is Lufthansa, starting at $726.

  • Can I find deals for flights from Newark to Kos that include hotel bookings?

    Yes. In addition to deals on Newark to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Newark to Kos?

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

  • Can I find deals for business class flights from Newark to Kos?

    Yes. Cheapflights offers flight deals from Newark 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Newark to Kos

Discover the top 2 airlines that operate flights from Newark 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$505Average$1,060FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$726Average$1,212FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.