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Cheap flights from the United States to Kos from $244

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 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United States to Kos

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

British Airways Logo
8:05 pm - 8:45 pmJFK-KGS
17h 40m1 stop
British Airways Logo
9:45 pm - 6:05 pmKGS-JFK
27h 20m1 stop
$578British Airways
Find Deal
Wed, Sep 24 - Wed, Oct 1
Austrian Airlines Logo
5:40 pm - 9:10 amEWR-KGS
32h 30m1 stop
Austrian Airlines Logo
8:50 pm - 1:55 pmKGS-EWR
24h 05m1 stop
$586Austrian Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
Logo
10:50 pm - 9:15 pmBOS-KGS
16h 25m2 stops
Logo
9:45 pm - 8:20 pmKGS-BOS
53h 35m2 stops
$594
Find Deal
Sun, Oct 26 - Sun, Nov 2
Logo
6:30 pm - 9:15 pmJFK-KGS
20h 45m2 stops
Logo
9:45 pm - 1:05 pmKGS-JFK
22h 20m2 stops
$628
Find Deal
Sun, Oct 26 - Sun, Nov 2
Lufthansa Logo
11:22 am - 6:40 pmJAX-KGS
24h 18m2 stops
Lufthansa Logo
12:40 pm - 9:22 pmKGS-JAX
38h 42m2 stops
$974Lufthansa
Find Deal
Wed, Oct 15 - Mon, Oct 27
Lufthansa Logo
4:26 pm - 6:40 pmJAX-KGS
43h 14m2 stops
Lufthansa Logo
12:40 pm - 9:22 pmKGS-JAX
38h 42m2 stops
$980Lufthansa
Find Deal
Tue, Oct 14 - Mon, Oct 27
SWISS Logo
7:25 pm - 8:00 pmJFK-KGS
17h 35m2 stops
SWISS Logo
11:00 am - 2:20 pmKGS-JFK
34h 20m2 stops
$1,010SWISS
Find Deal
Fri, Oct 10 - Mon, Oct 13
SWISS Logo
7:25 pm - 8:00 pmJFK-KGS
17h 35m2 stops
SWISS Logo
11:00 am - 2:20 pmKGS-JFK
34h 20m2 stops
$1,064SWISS
Find Deal
Fri, Oct 10 - Mon, Oct 13
Emirates Logo
3:40 pm - 5:05 pmSFO-KGS
39h 25m2 stops
Emirates Logo
12:35 pm - 12:50 pmKGS-SFO
34h 15m2 stops
$1,758Emirates
Find Deal
Fri, Dec 5 - Tue, Dec 9
Emirates Logo
3:40 pm - 5:05 pmSFO-KGS
39h 25m2 stops
Emirates Logo
12:35 pm - 12:50 pmKGS-SFO
34h 15m2 stops
$1,802Emirates
Find Deal
Fri, Dec 5 - Tue, Dec 9

Lufthansa flights from United States to Kos

Our best Lufthansa deals on United States to Kos flight tickets
Lufthansa
Oct 15
JAX11:22 amJacksonville
24h 18m
2 stops
KGS6:40 pmKos
Oct 27
KGS12:40 pmKos
38h 42m
2 stops
JAX9:22 pmJacksonville
$974
Find similar
Lufthansa
Oct 14
JAX4:26 pmJacksonville
43h 14m
2 stops
KGS6:40 pmKos
Oct 27
KGS12:40 pmKos
38h 42m
2 stops
JAX9:22 pmJacksonville
$980
Find similar
Lufthansa
Oct 18
JAX6:51 pmJacksonville
33h 59m
2 stops
KGS11:50 amKos
Oct 27
KGS12:40 pmKos
38h 42m
2 stops
JAX9:22 pmJacksonville
$1,059
Find similar

British Airways flights from United States to Kos

Our best British Airways deals on United States to Kos flight tickets
British Airways
Sep 24
JFK8:05 pmNew York John F Kennedy Intl
17h 40m
1 stop
KGS8:45 pmKos
Oct 1
KGS9:45 pmKos
27h 20m
1 stop
JFK6:05 pmNew York John F Kennedy Intl
$578
Find similar
British Airways
Sep 18
ORD1:59 pmChicago O'Hare Intl
39h 06m
2 stops
KGS1:05 pmKos
Sep 23
KGS2:20 pmKos
31h 55m
2 stops
ORD2:15 pmChicago O'Hare Intl
$851
Find similar
British Airways
Sep 14
TPA7:00 pmTampa
19h 00m
1 stop
KGS9:00 pmKos
Sep 21
KGS8:55 pmKos
27h 00m
1 stop
TPA4:55 pmTampa
$2,151
Find similar

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 September 11, 2025.
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

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Wed 9/24

8:05 pm-8:45 pm

1 stop17h 40m

Kos

Wed 10/1

9:45 pm-6:05 pm

1 stop27h 20m

$578

NewarkKos

EWR - KGS

EWRKGS

Newark

Fri 10/10

5:40 pm-9:10 am

1 stop32h 30m

Kos

Mon 10/13

8:50 pm-1:55 pm

1 stop24h 05m

$586

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Sun 10/26

10:50 pm-9:15 pm

2 stops16h 25m

Kos

Sun 11/2

9:45 pm-8:20 pm

2 stops53h 35m

$594

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Sun 10/26

6:30 pm-9:15 pm

2 stops20h 45m

Kos

Sun 11/2

9:45 pm-1:05 pm

2 stops22h 20m

$628

JacksonvilleKos

JAX - KGS

JAXKGS

Jacksonville

Wed 10/15

11:22 am-6:40 pm

2 stops24h 18m

Kos

Mon 10/27

12:40 pm-9:22 pm

2 stops38h 42m

$974

JacksonvilleKos

JAX - KGS

JAXKGS

Jacksonville

Tue 10/14

4:26 pm-6:40 pm

2 stops43h 14m

Kos

Mon 10/27

12:40 pm-9:22 pm

2 stops38h 42m

$980

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Fri 10/10

7:25 pm-8:00 pm

2 stops17h 35m

Kos

Mon 10/13

11:00 am-2:20 pm

2 stops34h 20m

$1,010

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Fri 10/10

7:25 pm-8:00 pm

2 stops17h 35m

Kos

Mon 10/13

11:00 am-2:20 pm

2 stops34h 20m

$1,064

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Fri 12/5

3:40 pm-5:05 pm

2 stops39h 25m

Kos

Tue 12/9

12:35 pm-12:50 pm

2 stops34h 15m

$1,758

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Fri 12/5

3:40 pm-5:05 pm

2 stops39h 25m

Kos

Tue 12/9

12:35 pm-12:50 pm

2 stops34h 15m

$1,802

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Kos from

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

What is the cheapest day to depart on your flight to Kos?

The cheapest day to depart from United States to Kos is on a Sunday when prices can be found for as low as $976. On the other hand, Saturday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,196.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from United States in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,047 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,072 on average. Flights to Kos from United States in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 30% 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

Direct flights

None
There are no direct flights from United States to Kos. There are no popular flight routes from United States to Kos.
Search flight deals

  • 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 $501Free CancellationRating
7.5
1,731 reviews
Search SWISS flights
LufthansaPriceFrom $602Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
British AirwaysPriceFrom $730Free CancellationRating
6.6
7,361 reviews
Search British Airways flights

Traveling to a place near Kos?

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

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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