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Kos

$442+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — KGS
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from USA to Kos

Keep the following information in mind while searching for USA to Kos flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$738
(Trip.com)

One-way from

$442
(Kiwi.com)
Provider with most accurate pricing for New York (NYC)-Kos flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Kos flights.
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From USA to Kos
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One-way flight from USA to Kos
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Find 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 November 3, 2025.

This Ovago deal was found by Cheapflights users on 11/2. 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.
Thu 12/42:00 pmSEA - KGS
2 stops20h 35mMultiple Airlines
Thu 12/118:35 pmKGS - SEA
2 stops25h 35mMultiple Airlines
Deal found 11/2$748
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:00 pmSEA - KGS
2 stops36h 05mMultiple Airlines
Wed 12/108:35 amKGS - SEA
2 stops37h 35mMultiple Airlines
Deal found 11/2$777
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:10 pmSEA - KGS
2 stops34h 55mMultiple Airlines
Wed 12/108:35 amKGS - SEA
2 stops37h 35mMultiple Airlines
Deal found 11/2$846
This Ovago deal was found by Cheapflights users on 11/2. 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.
Thu 12/42:00 pmSEA - KGS
2 stops20h 35mMultiple Airlines
Fri 12/129:05 pmKGS - SEA
2 stops25h 05mMultiple Airlines
Deal found 11/2$848
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:00 pmSEA - KGS
2 stops20h 05mMultiple Airlines
Wed 12/108:35 amKGS - SEA
2 stops37h 35mMultiple Airlines
Deal found 11/2$877
This Ovago deal was found by Cheapflights users on 11/2. 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.
Fri 12/52:00 pmSEA - KGS
2 stops20h 05mMultiple Airlines
Fri 12/125:35 pmKGS - SEA
2 stops28h 35mMultiple Airlines
Deal found 11/2$948
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:25 pmJFK - KGS
1 stop19h 40mMultiple Airlines
Wed 12/248:35 amKGS - JFK
1 stop15h 20mMultiple Airlines
Deal found 11/2$956
This Ovago deal was found by Cheapflights users on 11/2. 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.
Wed 12/33:10 pmSEA - KGS
2 stops18h 55mMultiple Airlines
Fri 12/129:05 pmKGS - SEA
2 stops25h 05mMultiple Airlines
Deal found 11/2$1,039
This Gurufare deal was found by Cheapflights users on 11/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:35 pmJFK - KGS
2 stops17h 30mMultiple Airlines
Tue 12/234:40 pmKGS - JFK
2 stops30h 00mMultiple Airlines
Deal found 11/1$1,108
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:30 pmEWR - KGS
2 stops15h 40mMultiple Airlines
Wed 12/248:35 amKGS - EWR
2 stops36h 00mMultiple Airlines
Deal found 11/2$1,129
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:25 amEWR - KGS
2 stops24h 40mMultiple Airlines
Tue 12/238:35 amKGS - EWR
2 stops20h 55mMultiple Airlines
Deal found 11/1$1,217
This Gurufare deal was found by Cheapflights users on 11/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:30 pmSFO - KGS
2 stops20h 35mMultiple Airlines
Tue 12/238:35 pmKGS - SFO
2 stops33h 00mMultiple Airlines
Deal found 11/1$1,300

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 November 3, 2025.
Use the filters below to find and compare flights from the United States to Kos that are best for you.

Fly from

USA

Fly to

Kos

Route

Depart

Return

Price

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Thu 12/4

2:00 pm-12:05 pm

2 stops36h 05m

Kos

Wed 12/10

8:35 am-12:10 pm

2 stops37h 35m

$777

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Wed 12/3

3:10 pm-12:05 pm

2 stops34h 55m

Kos

Wed 12/10

8:35 am-12:10 pm

2 stops37h 35m

$846

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Wed 12/3

3:10 pm-12:05 pm

2 stops34h 55m

Kos

Thu 12/11

8:35 pm-12:10 pm

2 stops25h 35m

$846

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Thu 12/4

2:00 pm-8:35 pm

2 stops20h 35m

Kos

Fri 12/12

9:05 pm-12:10 pm

2 stops25h 05m

$848

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Fri 12/5

2:00 pm-8:05 pm

2 stops20h 05m

Kos

Wed 12/10

8:35 am-12:10 pm

2 stops37h 35m

$877

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Fri 12/5

2:00 pm-8:05 pm

2 stops20h 05m

Kos

Fri 12/12

5:35 pm-12:10 pm

2 stops28h 35m

$948

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Wed 12/17

5:25 pm-7:30 pm

2 stops19h 05m

Kos

Wed 12/24

8:35 am-4:55 pm

1 stop15h 20m

$1,021

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

Wed 12/3

3:10 pm-8:05 pm

2 stops18h 55m

Kos

Fri 12/12

9:05 pm-12:10 pm

2 stops25h 05m

$1,039

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Sun 3/15

7:00 pm-4:10 pm

2 stops15h 10m

Kos

Thu 3/26

8:35 pm-4:50 pm

2 stops26h 15m

$1,073

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Fri 3/13

11:55 pm-8:05 pm

2 stops14h 10m

Kos

Wed 3/25

8:35 pm-4:50 pm

2 stops26h 15m

$1,086

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 31 results
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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

What is the cheapest time of day to fly from US to KGS?

Find hourly flight availability from USA to Kos. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

A simple way to save on the total cost of your ticket is to fly from USA to Kos in the evening. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the morning.

The best insider tips for theUnited States to Kos flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Kos trip
Airlines
Lufthansa

Lufthansa's Allegris cabins offer enhanced comfort with slim seats and adjustable headrests on long-haul flights.


Lufthansa's Sleeper’s Row offers extra space with a mattress and blanket on long-haul flights.

Read more about Lufthansaby Blane Bachelor
SWISS

SWISS offers competitive fares and even Economy Light earns miles, a nice perk for travelers.


SWISS's long-haul economy seats have a 31-32 inch pitch and 17-inch width, feeling tight on long flights.

Read more about SWISSby Paul Rubio
British Airways

BA's World Traveller offers adjustable headrests, inflight entertainment, and complimentary meals on long-haul flights.


BA's Club Suite business class offers private pods with doors, available on A350 and most 777s.

Read more about British Airwaysby Gabriel Leigh
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Lufthansa

Blane Bachelor

Blane Bachelor

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
Paul Rubio

Paul Rubio

Expert on SWISS

Paul Rubio

Paul Rubio

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
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel Leigh

Gabriel Leigh

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

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 November 3, 2025.
Read reviews from past customers who have flown SWISS, Lufthansa, and British Airways 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
1,775 reviews

Boarding

7.6

Crew

8.2

Comfort

7.4

Entertainment

6.8

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
SWISS
7.5
Good
1,775 reviews
SWISS
7.5
Good
1,775 reviews

Boarding

7.6

Crew

8.2

Comfort

7.4

Entertainment

6.8

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
Lufthansa
6.8
Okay
7,544 reviews
SWISS
7.5
Good
1,775 reviews

Boarding

7.6

Crew

8.2

Comfort

7.4

Entertainment

6.8

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
British Airways
6.7
Okay
7,494 reviews
SWISS
7.5
Good
1,775 reviews

Boarding

7.6

Crew

8.2

Comfort

7.4

Entertainment

6.8

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.

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 17h 40m. There are 5124 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 Jacksonville - Kos or Seattle/Tacoma Intl - Kos, Washington, D.C. Dulles 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

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Alternative routes for USA to Kos

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from USA to Kos

Discover the top 3 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$501Average$1,123FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$602Average$1,060FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$730Average$780FlexibilityNo cancel feeOn-time70%

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