EWR - KGS

$551 Find Cheap Flights from Newark Liberty Airport to Kos

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Newark to Kos departing on 9/6. 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

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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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

Sat, Sep 6 - Tue, Sep 16
SWISS Logo
9:50 pm - 10:10 amEWR-KGS
29h 20m1 stop
SWISS Logo
8:30 pm - 8:10 pmKGS-EWR
30h 40m1 stop
$551SWISS
Find Deal
Sat, Sep 6 - Tue, Sep 16
SWISS Logo
9:50 pm - 10:10 amEWR-KGS
29h 20m1 stop
SWISS Logo
8:30 pm - 8:10 pmKGS-EWR
30h 40m1 stop
$552SWISS
Find Deal
Fri, Oct 10 - Mon, Oct 13
 Logo
9:50 pm - 2:30 pmEWR-KGS
33h 40m1 stop
 Logo
8:50 pm - 1:55 pmKGS-EWR
24h 05m1 stop
Fri, Oct 10 - Mon, Oct 13
 Logo
9:50 pm - 2:30 pmEWR-KGS
33h 40m1 stop
 Logo
8:50 pm - 1:55 pmKGS-EWR
24h 05m1 stop
Sat, Sep 13 - Sat, Sep 20
 Logo
5:15 pm - 9:55 pmEWR-KGS
21h 40m2 stops
 Logo
8:35 am - 1:15 pmKGS-EWR
35h 40m2 stops
Sat, Sep 13 - Thu, Sep 25
SWISS Logo
9:50 pm - 10:10 amEWR-KGS
29h 20m1 stop
SWISS Logo
11:00 am - 8:10 pmKGS-EWR
16h 10m1 stop
$654SWISS
Find Deal
Fri, Oct 10 - Mon, Oct 13
Lufthansa Logo
6:00 pm - 7:25 pmEWR-KGS
18h 25m2 stops
Lufthansa Logo
12:40 pm - 6:45 pmKGS-EWR
13h 05m1 stop
$686Lufthansa
Find Deal
Fri, Oct 10 - Mon, Oct 13
Lufthansa Logo
6:00 pm - 7:25 pmEWR-KGS
18h 25m2 stops
Lufthansa Logo
12:40 pm - 3:40 pmKGS-EWR
34h 00m2 stops
$783Lufthansa
Find Deal
Sun, Aug 17 - Mon, Aug 25
Austrian Airlines Logo
9:40 pm - 8:00 pmEWR-KGS
15h 20m2 stops
Austrian Airlines Logo
8:50 pm - 1:10 pmKGS-EWR
23h 20m2 stops
$793Austrian Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
Austrian Airlines Logo
5:45 pm - 5:55 pmEWR-KGS
17h 10m2 stops
Austrian Airlines Logo
8:50 pm - 1:20 pmKGS-EWR
23h 30m2 stops
$831Austrian Airlines
Find Deal
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 ($551) and Lufthansa ($686).

Good to know

Cheapest flight$551
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 $551 for a round-trip ticket.

  • 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.

  • Which is the best airline for flights from Newark to Kos, SWISS or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Newark to Kos are SWISS and Lufthansa. With an average price for the route of $1,060 and an overall rating of 7.5, SWISS is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,212 and an overall rating of 6.8.

  • 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 airlines 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.
7.5
SWISSOverall score based on 1686 reviews
7.4Comfort
8.2Crew
7.7Boarding
7.1Food
6.8Entertainment
Airline reviews

Not good. We returned on united airlines and the food was horrible.

4.0 OkayLuz, Jul 2025ZRH - DEN
Read more SWISS reviews

Not good. We returned on united airlines and the food was horrible.

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.

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

The whole experience was positive. Crew very friendly and helpful. Very greedy with pre-seat allocation. Web site too complicated

Swiss airline do not allow online check-in before 24 hrs, this is very inconvenient to us. I tried many ways such as booking code(6 numbers) or 13 booking numbers , neither of them work, Lufthansa is better which allow us to check in even before 30 hrs, so we can assign our seats( not many people want spend extra money to assign seats on top of airfare which is already spent.)

When I needed to get my bag off of the plane so that I could take a train because the connection was 4 hours later, they took 2 hours to take my bag off making me take the train and miss my flight simultaneously. The seat size on the plane is too small for an average aged woman let alone a middle-aged man. It's unacceptable and I will not fly Boeing again.

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

The biggest let down was with booking experience through Kayak. I booked a flight with checked bags on Kayak. Right away I got a message from travel agency that the flight is not confirmed and to call them. I called them and they said the flight I have booked is no longer available with the price I have booked it for and I can book it with about $100 more. I already had other options I could book with cheaper price so I asked them to cancel my booking. Then they said I can have the ticket with the same price but a date change which was not working for me as I had to be there for a seminar. So again I said no then they said they will cover the charges and confirm my flight. When comes time for check-in I see I have no checked bag option which means the travel agency deceived me saying I can have my booking as I had booked it. And at that point I ended up paying $155 for my checked bag going back and forth. I am extremely angry and unhappy with this experience

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

We were charged for luggage, and our ticket was with Lufthansa and was supposed to include luggage fees. So our experience was a bit bad. Also, the flight was about 45 minutes late arriving.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Delayed over 2 hours. Bring your own snacks or prepare to pay. No entertainment and no plug plugs for charging.

Service was courteous and attentive. Sat in the exit row. In exchange for leg room I had people tripping over my feet to use it at a hallway from one aisle to the other, had no access to films viaa viewscreen and no underseat storage for medicines or other personal travel needs. Next time I am seated there, I will refuse the exit row.

Crew and service was excellent. My seat was super small and cramped! No leg room

I asked for antibacterial wipes three times and each time I was told they will bring it to me right away with nothing delivered. I finally went to the galley and was told you did not have it. In a post COVID world that is just wrong. The crew was very non compassionate to passengers asking basic questions about food. Very disappointing and makes me reconsider my routing for the future trips.

I remember flying with Lufthansa many years ago, and it used to be an amazing airline with more technologically savvy and roomy planes, but unfortunately that isn’t the case anymore. The space between the seats is much smaller, which is ok for short flights, but definitely not for across the Atlantic flights. Not sure if I’ll opt for Lufthansa the next time, maybe just if necessary.

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

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