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Cheap flights from the United States to Kos from $322

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 5/8. 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

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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.
Multiple Airlines Logo
5:15 pm - 4:45 pm
EWR
-
KGS
16h 30m
2 stops
Multiple Airlines Logo
10:25 pm - 2:59 pm
KGS
-
EWR
47h 34m
2 stops
$609Multiple Airlines
Mon, Apr 27 - Fri, May 1
Multiple Airlines Logo
12:50 pm - 4:45 pm
JFK
-
KGS
20h 55m
2 stops
Multiple Airlines Logo
10:25 pm - 10:30 pm
KGS
-
JFK
55h 05m
2 stops
$763Multiple Airlines
Mon, Apr 27 - Fri, May 1
Multiple Airlines Logo
12:25 am - 8:05 am
JFK
-
KGS
24h 40m
2 stops
Multiple Airlines Logo
8:35 am - 10:30 pm
KGS
-
JFK
44h 55m
2 stops
$777Multiple Airlines
Sun, Apr 5 - Mon, Apr 13
Finnair Logo
4:20 pm - 9:50 am
LAX
-
KGS
31h 30m
2 stops
Finnair Logo
10:40 am - 11:30 am
KGS
-
LAX
34h 50m
2 stops
$1,047Finnair
Thu, Sep 3 - Sat, Sep 12
Finnair Logo
4:20 pm - 9:50 am
LAX
-
KGS
31h 30m
2 stops
Finnair Logo
10:40 am - 11:30 am
KGS
-
LAX
34h 50m
2 stops
$1,048Finnair
Thu, Sep 3 - Sat, Sep 12
SWISS Logo
9:45 pm - 7:40 pm
EWR
-
KGS
14h 55m
1 stop
SWISS Logo
8:30 pm - 1:30 pm
KGS
-
EWR
24h 00m
1 stop
$1,060SWISS
Mon, Jun 22 - Tue, Sep 1
SWISS Logo
9:40 pm - 6:45 pm
BOS
-
KGS
14h 05m
1 stop
SWISS Logo
8:45 pm - 7:55 pm
KGS
-
BOS
30h 10m
1 stop
$1,142SWISS
Sun, Apr 12 - Sat, Apr 18
Lufthansa Logo
9:00 am - 8:55 am
TPA
-
KGS
40h 55m
2 stops
Lufthansa Logo
9:40 am - 3:55 pm
KGS
-
TPA
37h 15m
1 stop
$1,243Lufthansa
Sat, Aug 22 - Sat, Aug 29
Lufthansa Logo
9:00 am - 8:55 am
TPA
-
KGS
40h 55m
2 stops
Lufthansa Logo
8:35 pm - 5:35 pm
KGS
-
TPA
28h 00m
2 stops
$1,255Lufthansa
Sat, Aug 22 - Sat, Aug 29
British Airways Logo
8:10 pm - 8:45 pm
LGA
-
KGS
41h 35m
2 stops
British Airways Logo
9:40 pm - 8:39 pm
KGS
-
LGA
29h 59m
2 stops
$1,353British Airways
Mon, Jul 13 - Mon, Aug 10

SWISS flights from United States to Kos

Our best SWISS deals on United States to Kos flight tickets
SWISS
Jun 22
EWR9:45 pmNewark
14h 55m
1 stop
KGS7:40 pmKos
Sep 1
KGS8:30 pmKos
24h 00m
1 stop
EWR1:30 pmNewark
$1,060
SWISS
Jun 22
EWR9:45 pmNewark
14h 55m
1 stop
KGS7:40 pmKos
Sep 1
KGS8:30 pmKos
24h 00m
1 stop
EWR1:30 pmNewark
$1,083
SWISS
Apr 12
BOS9:40 pmBoston Logan Intl
14h 05m
1 stop
KGS6:45 pmKos
Apr 18
KGS8:45 pmKos
30h 10m
1 stop
BOS7:55 pmBoston Logan Intl
$1,142

Lufthansa flights from United States to Kos

Our best Lufthansa deals on United States to Kos flight tickets
Lufthansa
Aug 22
TPA9:00 amTampa
40h 55m
2 stops
KGS8:55 amKos
Aug 29
KGS9:40 amKos
37h 15m
1 stop
TPA3:55 pmTampa
$1,243
Lufthansa
Aug 22
TPA9:00 amTampa
40h 55m
2 stops
KGS8:55 amKos
Aug 29
KGS8:35 pmKos
28h 00m
2 stops
TPA5:35 pmTampa
$1,255
Lufthansa
Aug 22
TPA9:00 amTampa
40h 55m
2 stops
KGS8:55 amKos
Aug 29
KGS9:40 amKos
37h 15m
1 stop
TPA3:55 pmTampa
$1,292

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 March 13, 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

Mon 4/27

5:15 pm-4:45 pm

2 stops16h 30m

Kos

Fri 5/1

10:25 pm-2:59 pm

2 stops47h 34m

$609

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Mon 4/27

12:50 pm-4:45 pm

2 stops20h 55m

Kos

Fri 5/1

10:25 pm-10:30 pm

2 stops55h 05m

$763

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Sun 4/5

12:25 am-8:05 am

2 stops24h 40m

Kos

Mon 4/13

8:35 am-10:30 pm

2 stops44h 55m

$777

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles Los Angeles

Thu 9/3

4:20 pm-9:50 am

2 stops31h 30m

Kos

Sat 9/12

10:40 am-11:30 am

2 stops34h 50m

$1,047

Los AngelesKos

LAX - KGS

LAXKGS

Los Angeles Los Angeles

Thu 9/3

4:20 pm-9:50 am

2 stops31h 30m

Kos

Sat 9/12

10:40 am-11:30 am

2 stops34h 50m

$1,048
Quickest round-trip

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 6/22

9:45 pm-7:40 pm

1 stop14h 55m

Kos

Tue 9/1

8:30 pm-1:30 pm

1 stop24h 00m

$1,060

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Sun 4/12

9:40 pm-6:45 pm

1 stop14h 05m

Kos

Sat 4/18

8:45 pm-7:55 pm

1 stop30h 10m

$1,142

TampaKos

TPA - KGS

TPAKGS

Tampa

Sat 8/22

9:00 am-8:55 am

2 stops40h 55m

Kos

Sat 8/29

9:40 am-3:55 pm

1 stop37h 15m

$1,243

TampaKos

TPA - KGS

TPAKGS

Tampa

Sat 8/22

9:00 am-8:55 am

2 stops40h 55m

Kos

Sat 8/29

8:35 pm-5:35 pm

2 stops28h 00m

$1,255

New YorkKos

LGA - KGS

LGAKGS

New York LaGuardia

Mon 7/13

8:10 pm-8:45 pm

2 stops41h 35m

Kos

Mon 8/10

9:40 pm-8:39 pm

2 stops29h 59m

$1,353

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

12h 20m

Direct flights

None
The fastest flight from United States to Kos takes 12h 20m
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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  • 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
1,897 reviews
Search SWISS flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,848 reviews
Search Lufthansa flights
British AirwaysPriceFrom $730Free CancellationRating
6.7
7,784 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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