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Cheap flights from the United States to Kos from $337

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 9/7. 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
0 bags

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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

Enter your travel dates to find the best prices.
SWISS Logo
8:30 pm - 3:10 pm
JFK
-
KGS
11h 40m
1 stop
SWISS Logo
8:30 pm - 12:50 pm
KGS
-
JFK
23h 20m
1 stop
$742SWISS
Thu, Aug 13 - Tue, Sep 1
SWISS Logo
7:25 pm - 7:40 pm
JFK
-
KGS
17h 15m
2 stops
SWISS Logo
11:00 am - 12:50 pm
KGS
-
JFK
32h 50m
1 stop
$760SWISS
Mon, Jul 6 - Thu, Sep 3
Multiple Airlines Logo
6:10 pm - 10:30 am
JFK
-
KGS
33h 20m
1 stop
Multiple Airlines Logo
11:00 am - 12:50 pm
KGS
-
JFK
32h 50m
1 stop
$765Multiple Airlines
Sun, Jul 5 - Thu, Sep 3
Multiple Airlines Logo
6:10 pm - 10:30 am
JFK
-
KGS
33h 20m
1 stop
Multiple Airlines Logo
11:00 am - 12:50 pm
KGS
-
JFK
32h 50m
1 stop
$767Multiple Airlines
Sun, Jul 5 - Thu, Sep 3
Austrian Airlines Logo
5:30 pm - 8:50 pm
LAX
-
KGS
17h 20m
2 stops
Austrian Airlines Logo
9:40 pm - 4:20 pm
KGS
-
LAX
28h 40m
2 stops
$944Austrian Airlines
Thu, Sep 3 - Wed, Sep 9
Austrian Airlines Logo
3:05 pm - 8:50 pm
LAX
-
KGS
19h 45m
1 stop
Austrian Airlines Logo
9:25 pm - 3:15 pm
KGS
-
LAX
27h 50m
2 stops
$965Austrian Airlines
Thu, Sep 3 - Sat, Sep 12
Lufthansa Logo
8:05 pm - 7:05 pm
BOS
-
KGS
16h 00m
1 stop
Lufthansa Logo
9:45 am - 11:54 pm
KGS
-
BOS
45h 09m
2 stops
$1,020Lufthansa
Tue, Sep 8 - Mon, Sep 14
Lufthansa Logo
8:05 pm - 7:05 pm
BOS
-
KGS
16h 00m
1 stop
Lufthansa Logo
7:55 pm - 8:10 pm
KGS
-
BOS
31h 15m
2 stops
$1,023Lufthansa
Tue, Sep 8 - Wed, Sep 30
British Airways Logo
6:50 pm - 8:50 pm
TPA
-
KGS
19h 00m
1 stop
British Airways Logo
9:45 pm - 4:50 pm
KGS
-
TPA
26h 05m
1 stop
$1,348British Airways
Wed, Jul 15 - Wed, Jul 22
British Airways Logo
6:50 pm - 8:50 pm
TPA
-
KGS
19h 00m
1 stop
British Airways Logo
1:40 pm - 4:50 pm
KGS
-
TPA
34h 10m
1 stop
$1,468British Airways
Wed, Jun 17 - Fri, Jul 10

Brussels Airlines flights from United States to Kos

Our best Brussels Airlines deals on United States to Kos flight tickets
Brussels Airlines
Jul 7
JFK6:10 pmNew York John F Kennedy Intl
33h 15m
1 stop
KGS10:25 amKos
Aug 30
KGS11:25 amKos
58h 35m
2 stops
JFK3:00 pmNew York John F Kennedy Intl
$824
Brussels Airlines
Sep 9
BOS8:05 pmBoston Logan Intl
37h 20m
2 stops
KGS4:25 pmKos
Sep 16
KGS11:25 amKos
37h 15m
2 stops
BOS5:40 pmBoston Logan Intl
$1,059
Brussels Airlines
Sep 11
BOS8:05 pmBoston Logan Intl
31h 20m
2 stops
KGS10:25 amKos
Sep 16
KGS11:25 amKos
37h 15m
2 stops
BOS5:40 pmBoston Logan Intl
$1,119

British Airways flights from United States to Kos

Our best British Airways deals on United States to Kos flight tickets
British Airways
Jul 5
EWR9:25 pmNewark
16h 20m
1 stop
KGS8:45 pmKos
Jul 27
KGS9:45 pmKos
23h 10m
1 stop
EWR1:55 pmNewark
$1,039
British Airways
Jul 15
TPA6:50 pmTampa
19h 00m
1 stop
KGS8:50 pmKos
Jul 22
KGS9:45 pmKos
26h 05m
1 stop
TPA4:50 pmTampa
$1,348
British Airways
Jun 17
TPA6:50 pmTampa
19h 00m
1 stop
KGS8:50 pmKos
Jul 10
KGS1:40 pmKos
34h 10m
1 stop
TPA4:50 pmTampa
$1,468

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 May 8, 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
Quickest round-trip

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Thu 8/13

8:30 pm-3:10 pm

1 stop11h 40m

Kos

Tue 9/1

8:30 pm-12:50 pm

1 stop23h 20m

$742

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Mon 7/6

7:25 pm-7:40 pm

2 stops17h 15m

Kos

Thu 9/3

11:00 am-12:50 pm

1 stop32h 50m

$760

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Sun 7/5

6:10 pm-10:30 am

1 stop33h 20m

Kos

Thu 9/3

11:00 am-12:50 pm

1 stop32h 50m

$765

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Sun 7/5

6:10 pm-10:30 am

1 stop33h 20m

Kos

Thu 9/3

11:00 am-12:50 pm

1 stop32h 50m

$767

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Thu 9/3

5:30 pm-8:50 pm

2 stops17h 20m

Kos

Wed 9/9

9:40 pm-4:20 pm

2 stops28h 40m

$944

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles

Thu 9/3

3:05 pm-8:50 pm

1 stop19h 45m

Kos

Sat 9/12

9:25 pm-3:15 pm

2 stops27h 50m

$965

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Tue 9/8

8:05 pm-7:05 pm

1 stop16h 00m

Kos

Mon 9/14

9:45 am-11:54 pm

2 stops45h 09m

$1,020

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Tue 9/8

8:05 pm-7:05 pm

1 stop16h 00m

Kos

Wed 9/30

7:55 pm-8:10 pm

2 stops31h 15m

$1,023

TampaKos

TPA - KGS

TPAKGS

Tampa

Wed 7/15

6:50 pm-8:50 pm

1 stop19h 00m

Kos

Wed 7/22

9:45 pm-4:50 pm

1 stop26h 05m

$1,348

TampaKos

TPA - KGS

TPAKGS

Tampa

Wed 6/17

6:50 pm-8:50 pm

1 stop19h 00m

Kos

Fri 7/10

1:40 pm-4:50 pm

1 stop34h 10m

$1,468

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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

Fastest flight time

11h 40m

Direct flights

None
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.
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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 $501Free CancellationRating
7.6
1,937 reviews
Search SWISS flights
LufthansaPriceFrom $619Free CancellationRating
6.8
7,980 reviews
Search Lufthansa flights
British AirwaysPriceFrom $730Free CancellationRating
6.7
7,952 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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