EWR - KGS

$419 Find Cheap Flights from Newark Liberty Airport 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 from Newark to Kos departing on 6/6. 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 in flight searches from Newark to Kos, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Newark to Kos, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$984
SWISS
Thu 7/16Wed 8/26
EWR - KGS • 2 stops
Cheapest one-way
$419
Multiple Airlines
Sat 6/6
EWR - KGS • 2 stops
Top airlines
SWISS
Cheapest • from $984 (round-trip)
SWISS
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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
Booking Insights
Flight Deals

Cheap Flights from Newark to Kos (EWR-KGS)

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

Thu, Jul 16 - Wed, Aug 26
SWISS Logo
12:45 pm - 3:10 pm
EWR
-
KGS
19h 25m
2 stops
SWISS Logo
8:40 pm - 8:15 pm
KGS
-
EWR
30h 35m
1 stop
$984SWISS
Wed, Jul 15 - Mon, Aug 24
Emirates Logo
11:55 pm - 12:35 am
EWR
-
KGS
17h 40m
1 stop
Emirates Logo
6:10 pm - 9:20 pm
KGS
-
EWR
34h 10m
1 stop
$1,018Emirates
Thu, May 7 - Mon, May 11
Emirates Logo
11:55 pm - 12:35 am
EWR
-
KGS
17h 40m
1 stop
Emirates Logo
6:05 pm - 9:20 pm
KGS
-
EWR
34h 15m
1 stop
$1,019Emirates
Thu, Jul 16 - Mon, Aug 24
SWISS Logo
12:45 pm - 3:10 pm
EWR
-
KGS
19h 25m
2 stops
SWISS Logo
11:00 am - 8:15 pm
KGS
-
EWR
16h 15m
1 stop
$1,054SWISS
Thu, Jul 16 - Sun, Aug 23
Austrian Airlines Logo
5:40 pm - 8:50 pm
EWR
-
KGS
20h 10m
1 stop
Austrian Airlines Logo
10:00 am - 1:55 pm
KGS
-
EWR
34h 55m
1 stop
$1,063Austrian Airlines
Thu, Jul 16 - Wed, Aug 26
SWISS Logo
12:45 pm - 3:10 pm
EWR
-
KGS
19h 25m
2 stops
SWISS Logo
8:40 pm - 8:15 pm
KGS
-
EWR
30h 35m
1 stop
$1,078SWISS
Thu, Jul 16 - Mon, Aug 24
Austrian Airlines Logo
5:40 pm - 8:50 pm
EWR
-
KGS
20h 10m
1 stop
Austrian Airlines Logo
8:50 pm - 1:55 pm
KGS
-
EWR
24h 05m
1 stop
$1,087Austrian Airlines
Tue, Jul 14 - Tue, Aug 25
Emirates Logo
11:55 pm - 12:35 am
EWR
-
KGS
17h 40m
1 stop
Emirates Logo
12:35 pm - 9:20 pm
KGS
-
EWR
15h 45m
1 stop
$1,091Emirates
Mon, Jul 13 - Tue, Aug 25
Emirates Logo
11:55 pm - 12:35 am
EWR
-
KGS
17h 40m
1 stop
Emirates Logo
12:35 pm - 9:20 pm
KGS
-
EWR
15h 45m
1 stop
$1,092Emirates
Thu, Jul 16 - Sat, Aug 22
Lufthansa Logo
8:30 pm - 8:50 am
EWR
-
KGS
29h 20m
2 stops
Lufthansa Logo
9:40 am - 3:45 pm
KGS
-
EWR
13h 05m
1 stop
$1,114Lufthansa
Booking Insights

KAYAK's insights & trends for Newark to Kos flights

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

Which airlines provide the cheapest flights from Newark Liberty Airport to Kos?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Newark Liberty Airport to Kos were found on SWISS ($984) and Emirates ($1,018).

Good to know

Cheapest flight$419
Flight from Newark Liberty Airport to Kos

When to book flights from Newark to Kos

Are your dates flexible? Find out the best times to travel from Newark 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Newark Liberty Airport to Kos flights

  • What is the cheapest flight from Newark Airport to Kos?

    In the last 3 days, the lowest price for a flight from Newark Airport to Kos was $419 for a one-way ticket and $805 for a round-trip.

  • Do I need a passport to fly between Newark Liberty Airport and Kos?

    Yes, you’ll need a passport to travel to Kos from Newark Liberty Airport.

  • Which airports will I be using when flying from Newark Liberty Airport to Kos?

    When flying out of Newark Liberty Airport you will be using Newark. You will be landing at Kos, also known as Kos.

  • Which aircraft models fly most regularly from Newark Liberty Airport to Kos?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Newark Liberty Airport to Kos?

    Star Alliance is the only airline alliance operating flights between Newark Liberty Airport and Kos.

  • How does KAYAK find such low prices on flights from Newark Liberty Airport 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 from Newark Liberty Airport to Kos.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Newark Liberty Airport 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 Newark Liberty Airport 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 to Newark Liberty Airport with another airline. Booking your flights between Newark Liberty Airport and KGS 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 Newark Liberty Airport 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 from Newark Liberty Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Newark to Kos

 
See real verified KAYAK customer reviews for airlines flying from Newark to Kos. 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 Newark 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 1864 reviews
8.3Crew
6.8Entertainment
7.7Boarding
7.4Comfort
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.

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

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

The seats were so close together, when the man in front of me put his seat back, the screen in front of me was 9 inches from my face. There is no way to lean forward if I needed to pick something up. It was pretty uncomfortable for a ten hour flight. I was very surprised.

Everything you need to know for your flight from Newark to Kos

Information on your arrival and departure airports