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Cheap flights from the United States to Kos from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Kos departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Kos

Recent round-trip flight deals from the United States to Kos

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:20 pm - 9:45 pmJFK  New York John F Kennedy Intl-KGS Kos
20h 25m1 stop London Gatwick
Multiple Airlines Logo
8:25 pm - 10:25 pmKGS  Kos-JFK New York John F Kennedy Intl
33h 00m2 stops Berlin Brandenburg Dublin
$608Multiple Airlines
Sat, Oct 3 - Mon, Oct 12
Multiple Airlines Logo
6:20 pm - 9:45 pmJFK  New York John F Kennedy Intl-KGS Kos
20h 25m1 stop London Gatwick
Multiple Airlines Logo
11:25 pm - 6:55 pmKGS  Kos-JFK New York John F Kennedy Intl
26h 30m2 stops Bergamo Orio Al Serio Madrid Barajas
$624Multiple Airlines
Sat, Oct 3 - Wed, Oct 14
Multiple Airlines Logo
6:20 pm - 9:55 pmJFK  New York John F Kennedy Intl-KGS Kos
20h 35m1 stop London Gatwick
Multiple Airlines Logo
8:55 pm - 10:25 pmKGS  Kos-JFK New York John F Kennedy Intl
32h 30m2 stops Berlin Brandenburg Dublin
$652Multiple Airlines
Sun, Oct 4 - Mon, Oct 12
Multiple Airlines Logo
6:20 pm - 9:45 pmJFK  New York John F Kennedy Intl-KGS Kos
20h 25m1 stop London Gatwick
Multiple Airlines Logo
9:55 pm - 3:55 pmKGS  Kos-JFK New York John F Kennedy Intl
25h 00m2 stops Bergamo Orio Al Serio London Stansted
$661Multiple Airlines
Sat, Oct 3 - Thu, Oct 15
SWISS Logo
7:35 pm - 10:10 amLAX  Los Angeles-KGS Kos
28h 35m1 stop Zurich
SWISS Logo
8:30 pm - 4:30 pmKGS  Kos-LAX Los Angeles
30h 00m1 stop Zurich
$871SWISS
Tue, Sep 29 - Tue, Oct 6
SWISS Logo
11:15 am - 7:55 pmLAX  Los Angeles-KGS Kos
22h 40m2 stops Newark Zurich
SWISS Logo
8:30 pm - 4:30 pmKGS  Kos-LAX Los Angeles
30h 00m1 stop Zurich
$888SWISS
Tue, Sep 29 - Tue, Oct 6
SWISS Logo
7:00 am - 7:55 pmSEA  Seattle/Tacoma Intl-KGS Kos
26h 55m2 stops Chicago O'Hare Intl Zurich
SWISS Logo
8:30 pm - 10:56 pmKGS  Kos-SEA Seattle/Tacoma Intl
36h 26m2 stops Zurich Chicago O'Hare Intl
$918SWISS
Tue, Sep 29 - Tue, Oct 6
Lufthansa Logo
9:50 pm - 7:05 pmJFK  New York John F Kennedy Intl-KGS Kos
14h 15m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
7:55 pm - 8:05 pmKGS  Kos-JFK New York John F Kennedy Intl
31h 10m2 stops Munich Franz Josef Strauss Frankfurt am Main
$1,091Lufthansa
Tue, Oct 6 - Wed, Oct 14
Lufthansa Logo
9:50 pm - 7:45 pmJFK  New York John F Kennedy Intl-KGS Kos
14h 55m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
12:40 pm - 3:00 pmKGS  Kos-JFK New York John F Kennedy Intl
33h 20m1 stop Munich Franz Josef Strauss
$1,129Lufthansa
Fri, Oct 2 - Mon, Oct 12
Lufthansa Logo
9:50 pm - 7:45 pmJFK  New York John F Kennedy Intl-KGS Kos
14h 55m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
1:30 pm - 8:05 pmKGS  Kos-JFK New York John F Kennedy Intl
13h 35m1 stop Frankfurt am Main
$1,153Lufthansa
Fri, Oct 2 - Wed, Oct 14

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Lufthansa flights from United States to Kos

Our best Lufthansa deals on United States to Kos flight tickets
Lufthansa
Sep 22
MCO9:45 pmOrlando
14h 20m
1 stop
KGS7:05 pmKos
Sep 28
KGS9:45 amKos
15h 10m
1 stop
MCO5:55 pmOrlando
$1,036
Lufthansa
Sep 21
MCO7:50 pmOrlando
33h 50m
1 stop
KGS12:40 pmKos
Sep 28
KGS9:45 amKos
15h 10m
1 stop
MCO5:55 pmOrlando
$1,176
Lufthansa
Aug 20
EWR6:00 pmNewark
42h 45m
2 stops
KGS7:45 pmKos
Sep 2
KGS7:55 pmKos
26h 50m
2 stops
EWR3:45 pmNewark
$1,234

SWISS flights from United States to Kos

Our best SWISS deals on United States to Kos flight tickets
SWISS
Sep 29
LAX7:35 pmLos Angeles
28h 35m
1 stop
KGS10:10 amKos
Oct 6
KGS8:30 pmKos
30h 00m
1 stop
LAX4:30 pmLos Angeles
$871
SWISS
Sep 29
LAX11:15 amLos Angeles
22h 40m
2 stops
KGS7:55 pmKos
Oct 6
KGS8:30 pmKos
30h 00m
1 stop
LAX4:30 pmLos Angeles
$888
SWISS
Sep 22
MCO12:35 pmOrlando
24h 20m
2 stops
KGS7:55 pmKos
Sep 29
KGS8:30 pmKos
34h 24m
2 stops
MCO11:54 pmOrlando
$918

momondo Fare Finder

 
Customize your flight search to find flights from United States 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, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from the United States to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Sat 10/3

6:20 pm-9:45 pm

1 stop20h 25m

Kos

Mon 10/12

8:25 pm-10:25 pm

2 stops33h 00m

$608

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Sat 10/3

6:20 pm-9:45 pm

1 stop20h 25m

Kos

Wed 10/14

11:25 pm-6:55 pm

2 stops26h 30m

$624

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Sun 10/4

6:20 pm-9:55 pm

1 stop20h 35m

Kos

Mon 10/12

8:55 pm-10:25 pm

2 stops32h 30m

$652

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Sat 10/3

6:20 pm-9:45 pm

1 stop20h 25m

Kos

Thu 10/15

9:55 pm-3:55 pm

2 stops25h 00m

$661

Los AngelesKos

LAX Los Angeles - KGS Kos

LAXKGS

Los Angeles

Tue 9/29

7:35 pm-10:10 am

1 stop28h 35m

Kos

Tue 10/6

8:30 pm-4:30 pm

1 stop30h 00m

$871

Los AngelesKos

LAX Los Angeles - KGS Kos

LAXKGS

Los Angeles

Tue 9/29

11:15 am-7:55 pm

2 stops22h 40m

Kos

Tue 10/6

8:30 pm-4:30 pm

1 stop30h 00m

$888

SeattleKos

SEA Seattle/Tacoma Intl - KGS Kos

SEAKGS

Seattle/Tacoma Intl

Tue 9/29

7:00 am-7:55 pm

2 stops26h 55m

Kos

Tue 10/6

8:30 pm-10:56 pm

2 stops36h 26m

$918

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Tue 10/6

9:50 pm-7:05 pm

2 stops14h 15m

Kos

Wed 10/14

7:55 pm-8:05 pm

2 stops31h 10m

$1,091

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Fri 10/2

9:50 pm-7:45 pm

2 stops14h 55m

Kos

Mon 10/12

12:40 pm-3:00 pm

1 stop33h 20m

$1,129
Quickest round-trip

New YorkKos

JFK New York John F Kennedy Intl - KGS Kos

JFKKGS

New York John F Kennedy Intl

Fri 10/2

9:50 pm-7:45 pm

2 stops14h 55m

Kos

Wed 10/14

1:30 pm-8:05 pm

1 stop13h 35m

$1,153

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from United States to Kos

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on United States to Kos flights?

You could potentially save up to 14% on your flight if you consider stops on a United States to Kos flight.

Cheap United States to Kos flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Kos

Best Price Found

$334

Fastest flight time

11h 40m

Direct flights

None
The best one-way flight to Kos from United States in the past 72 hours is $334. The best round-trip flight deal from United States to Kos found on momondo in the last 72 hours is $608.
The fastest flight from United States to Kos takes 11h 40m
There are no direct flights from United States to Kos. There are no popular flight routes from United States to Kos.
Search flight deals

Frequently asked questions about flying from the United States to Kos

  • When did momondo last update prices for flights from United States to Kos Airport?

    Prices for flights from United States to Kos Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United States to Kos Airport?

  • How old do you have to be to fly from United States to Kos Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Kos Airport.

  • What documentation or ID do you need to fly to Kos Airport?

    The travel and health documents required for your trip to Kos Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kos Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United States to Kos

Compare and see reviews for airlines that fly from United States to Kos with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $609Free CancellationRating
7.5
2,034 reviews
Search SWISS flights
LufthansaPriceFrom $922Free CancellationRating
6.8
8,194 reviews
Search Lufthansa flights

Traveling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Marmari
Kardamena

Why use momondo?

Why should I use momondo to find a flight deal from United States to Kos?

Finding the right flight to Kos from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kos quick and easy, saving you time and money.

Can I find flights from United States to Kos with flexible booking policies on momondo?

Yes. All flights to Kos from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United States to Kos?

momondo provides multiple filters to help you find the best flight to Kos from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from United States to Kos right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kos from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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