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Kos

$395+ Cheap flights from the United States to Kos (KGS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — KGS
Jul 21 — Jul 281
Tue 7/21
Tue 7/28
1 adult, Economy
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Cheap flight deals from USA to Kos

Cheapest flights from USA to Kos
Explore the most affordable flight options available from USA to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:45 pm
EWR
-
KGS
1 stop15h 10m
SWISS
Thu 9/1011:00 am
KGS
-
EWR
1 stop16h 15m
SWISS
Deal found 6/19$709
This United deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
EWR
-
KGS
2 stops30h 05m
Multiple Airlines
Thu 9/1011:00 am
KGS
-
EWR
1 stop16h 15m
Multiple Airlines
Deal found 6/19$764
This United deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:10 pm
EWR
-
KGS
1 stop33h 00m
Multiple Airlines
Mon 9/218:50 pm
KGS
-
EWR
1 stop24h 05m
Multiple Airlines
Deal found 6/21$848
This Expedia deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:10 pm
BOS
-
KGS
1 stop19h 30m
SWISS
Mon 8/3111:00 am
KGS
-
BOS
1 stop35h 10m
SWISS
Deal found 6/21$857
This Expedia deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:10 pm
BOS
-
KGS
1 stop19h 30m
Multiple Airlines
Mon 8/318:50 pm
KGS
-
BOS
2 stops31h 37m
Multiple Airlines
Deal found 6/21$862
This Cheapflightsfares deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:40 pm
EWR
-
KGS
1 stop20h 10m
Austrian Airlines
Wed 9/29:40 pm
KGS
-
EWR
1 stop23h 15m
Austrian Airlines
Deal found 6/21$864
This Ovago deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/159:45 pm
EWR
-
KGS
1 stop29h 25m
Multiple Airlines
Mon 9/78:50 pm
KGS
-
EWR
2 stops28h 55m
Multiple Airlines
Deal found 6/18$873
This KAYAK deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 pm
EWR
-
KGS
1 stop14h 55m
Multiple Airlines
Wed 9/29:40 pm
KGS
-
EWR
2 stops28h 05m
Multiple Airlines
Deal found 6/21$882
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/171:15 pm
JFK
-
KGS
1 stop28h 20m
Multiple Airlines
Wed 8/2611:25 am
KGS
-
JFK
2 stops42h 00m
Multiple Airlines
Deal found 6/17$930
This Booking.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:15 pm
JFK
-
KGS
1 stop15h 15m
Multiple Airlines
Sat 8/299:40 am
KGS
-
JFK
1 stop17h 25m
Multiple Airlines
Deal found 6/20$942
This Justfly.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:15 pm
JFK
-
KGS
1 stop20h 25m
Multiple Airlines
Sun 8/911:25 am
KGS
-
JFK
1 stop32h 35m
Multiple Airlines
Deal found 6/21$957
This Cheapflightsfares deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:05 pm
LAX
-
KGS
1 stop19h 45m
Austrian Airlines
Sat 9/129:25 pm
KGS
-
LAX
2 stops25h 45m
Austrian Airlines
Deal found 6/18$964

Find flight deals from USA to Kos

Keep the following information in mind while searching for USA to Kos flight deals. Data was last updated June 21, 2026.

Round-trip from

$709
(Cheapflightsfares)

One-way from

$395
(Kiwi.com)
From USA to Kos
Search Deals
One-way flight from USA to Kos
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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, Cheapflights users made 2,558,603 searches. Data last updated June 21, 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

NewarkKos

EWR - KGS

EWRKGS

Newark

Tue 8/18

6:00 am-7:05 pm

2 stops30h 05m

Kos

Thu 9/10

11:00 am-8:15 pm

1 stop16h 15m

$764

NewarkKos

EWR - KGS

EWRKGS

Newark

Sat 9/12

6:10 pm-10:10 am

1 stop33h 00m

Kos

Mon 9/21

8:50 pm-1:55 pm

1 stop24h 05m

$848

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Mon 8/24

6:50 pm-8:50 pm

2 stops43h 00m

Kos

Mon 8/31

8:50 pm-9:27 pm

2 stops31h 37m

$872

NewarkKos

EWR - KGS

EWRKGS

Newark

Thu 8/20

6:30 pm-4:25 pm

1 stop14h 55m

Kos

Wed 9/2

9:40 pm-6:45 pm

2 stops28h 05m

$882

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Tue 8/11

10:20 pm-7:05 pm

1 stop13h 45m

Kos

Tue 8/18

8:30 pm-4:45 pm

1 stop27h 15m

$977

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Mon 7/20

9:50 pm-7:40 pm

2 stops14h 50m

Kos

Wed 7/29

7:55 pm-8:05 pm

2 stops31h 10m

$981

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles Los Angeles

Thu 9/3

3:05 pm-8:50 pm

1 stop19h 45m

Kos

Sat 9/12

9:25 pm-1:10 pm

2 stops25h 45m

$1,004

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 7/20

9:50 pm-7:05 pm

2 stops38h 15m

Kos

Wed 7/29

9:40 pm-1:55 pm

1 stop23h 15m

$1,011

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Sat 8/22

5:30 pm-10:25 am

2 stops33h 55m

Kos

Sat 8/29

8:35 pm-1:00 pm

1 stop23h 25m

$1,012

New YorkKos

LGA - KGS

LGAKGS

New York LaGuardia

Wed 8/19

10:40 am-8:20 pm

2 stops26h 40m

Kos

Wed 9/9

8:35 am-7:36 pm

2 stops18h 01m

$1,021

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 47 resultsSorted by cheapest first
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Best time to book a flight from USA to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from USA with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Kos
No data available for this route at this time. Please check back soon.

The best insider tips for theUnited States to Kos flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Kos trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Paul Rubio

Paul Rubio

Expert on SWISS

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Blane Bachelor

Blane Bachelor

Expert on Lufthansa

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated June 21, 2026.
Read reviews from past customers who have flown SWISS and Lufthansa from the United States to Kos. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,972 reviews

Entertainment

6.8

Overall

7.5

Food

7.1

Boarding

7.7

Crew

8.3

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
SWISS
7.5
Good
1,972 reviews
SWISS
7.5
Good
1,972 reviews

Entertainment

6.8

Overall

7.5

Food

7.1

Boarding

7.7

Crew

8.3

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Lufthansa
6.8
Okay
8,086 reviews
SWISS
7.5
Good
1,972 reviews

Entertainment

6.8

Overall

7.5

Food

7.1

Boarding

7.7

Crew

8.3

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Related info for your journey

Find useful and relevant information for your journey from USA to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kos from United States?

    For a flight from United States to Kos, you will be flying into Kos. Kos (KGS) is just 12.8 mi from the center of the city.

  • How long is the flight from USA to Kos?

    Departing from USA to Kos will take you 19h 45m. There are 7063 mi between USA and Kos. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from USA to Kos?

    While some choose either Newark - Kos or New York LaGuardia - Kos, New York John F Kennedy Intl - Kos is the most popular route from USA to Kos.

  • Can I find deals for flights from USA to Kos that include hotel bookings?

    Yes. In addition to deals on USA to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Kos.

  • Can I find deals for business class flights from USA to Kos?

    Yes. Cheapflights offers flight deals from USA to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from USA to Kos

Discover the top 2 airlines that operate flights from USA to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$500Average$1,056FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$579Average$971FlexibilityNo cancel feeOn-time76%

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