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Cheap flights from the United States to Kos from $447

This is the cheapest round-trip 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 10/27. 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

Multiple Airlines Logo
11:00 pm - 9:50 amEWR-KGS
28h 50m1 stop
Multiple Airlines Logo
6:55 pm - 7:05 pmKGS-EWR
31h 10m1 stop
$447Multiple Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
Multiple Airlines Logo
10:00 pm - 9:50 amJFK-KGS
29h 50m1 stop
Multiple Airlines Logo
6:55 pm - 3:40 pmKGS-JFK
27h 45m1 stop
$447Multiple Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
SWISS Logo
11:00 pm - 9:50 amEWR-KGS
28h 50m1 stop
SWISS Logo
2:30 pm - 8:30 pmKGS-EWR
37h 00m2 stops
$602SWISS
Find Deal
Mon, Oct 27 - Wed, Nov 5
Lufthansa Logo
10:55 pm - 6:00 pmJFK-KGS
37h 05m2 stops
Lufthansa Logo
6:55 pm - 1:50 pmKGS-JFK
25h 55m2 stops
$608Lufthansa
Find Deal
Mon, Oct 27 - Wed, Nov 5
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
$721Austrian Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
Austrian Airlines Logo
11:20 pm - 9:10 amEWR-KGS
26h 50m2 stops
Austrian Airlines Logo
8:50 pm - 1:20 pmKGS-EWR
23h 30m2 stops
$813Austrian Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
SWISS Logo
11:00 pm - 9:50 amEWR-KGS
28h 50m2 stops
SWISS Logo
2:30 pm - 8:30 pmKGS-EWR
37h 00m2 stops
$818SWISS
Find Deal
Mon, Oct 27 - Wed, Nov 5
Lufthansa Logo
9:50 pm - 11:50 amEWR-KGS
32h 00m1 stop
Lufthansa Logo
8:15 pm - 7:05 pmKGS-EWR
29h 50m1 stop
$906Lufthansa
Find Deal
Sat, Nov 1 - Sat, Nov 8
British Airways Logo
7:45 pm - 1:20 pmJFK-KGS
34h 35m1 stop
British Airways Logo
2:05 pm - 12:20 pmKGS-JFK
29h 15m1 stop
$1,313British Airways
Find Deal
Sun, Oct 19 - Sat, Oct 25
British Airways Logo
10:25 pm - 9:00 pmATL-KGS
15h 35m1 stop
British Airways Logo
9:45 pm - 8:35 pmKGS-ATL
29h 50m1 stop
$1,513British Airways
Find Deal
Sun, Oct 12 - Wed, Oct 22

Emirates flights from United States to Kos

Our best Emirates deals on United States to Kos flight tickets
Emirates
Dec 5
SFO3:40 pmSan Francisco
39h 25m
2 stops
KGS5:05 pmKos
Dec 9
KGS12:35 pmKos
34h 15m
2 stops
SFO12:50 pmSan Francisco
$1,802
Find similar
Emirates
Oct 31
SFO4:45 pmSan Francisco
39h 20m
2 stops
KGS5:05 pmKos
Nov 7
KGS12:35 pmKos
34h 15m
2 stops
SFO12:50 pmSan Francisco
$2,065
Find similar
Emirates
Sep 29
SFO5:05 pmSan Francisco
38h 25m
2 stops
KGS5:30 pmKos
Oct 2
KGS11:25 amKos
36h 35m
2 stops
SFO2:00 pmSan Francisco
$4,391
Find similar

Austrian Airlines flights from United States to Kos

Our best Austrian Airlines deals on United States to Kos flight tickets
Austrian Airlines
Oct 10
EWR5:40 pmNewark
32h 30m
1 stop
KGS9:10 amKos
Oct 13
KGS8:50 pmKos
24h 05m
1 stop
EWR1:55 pmNewark
$721
Find similar
Austrian Airlines
Oct 10
EWR11:20 pmNewark
26h 50m
2 stops
KGS9:10 amKos
Oct 13
KGS8:50 pmKos
23h 30m
2 stops
EWR1:20 pmNewark
$813
Find similar
Austrian Airlines
Oct 10
EWR5:40 pmNewark
32h 30m
1 stop
KGS9:10 amKos
Oct 13
KGS8:50 pmKos
24h 05m
1 stop
EWR1:55 pmNewark
$829
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 17, 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

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 10/27

11:00 pm-9:50 am

1 stop28h 50m

Kos

Wed 11/5

6:55 pm-7:05 pm

1 stop31h 10m

$447

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Mon 10/27

10:00 pm-9:50 am

1 stop29h 50m

Kos

Wed 11/5

6:55 pm-3:40 pm

1 stop27h 45m

$447

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 10/27

11:00 pm-9:50 am

1 stop28h 50m

Kos

Wed 11/5

2:30 pm-8:30 pm

2 stops37h 00m

$602

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Mon 10/27

10:55 pm-6:00 pm

2 stops37h 05m

Kos

Wed 11/5

6:55 pm-1:50 pm

2 stops25h 55m

$608

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

$721

NewarkKos

EWR - KGS

EWRKGS

Newark

Fri 10/10

11:20 pm-9:10 am

2 stops26h 50m

Kos

Mon 10/13

8:50 pm-1:20 pm

2 stops23h 30m

$813

NewarkKos

EWR - KGS

EWRKGS

Newark

Mon 10/27

11:00 pm-9:50 am

2 stops28h 50m

Kos

Wed 11/5

2:30 pm-8:30 pm

2 stops37h 00m

$818

NewarkKos

EWR - KGS

EWRKGS

Newark

Sat 11/1

9:50 pm-11:50 am

1 stop32h 00m

Kos

Sat 11/8

8:15 pm-7:05 pm

1 stop29h 50m

$906

New YorkKos

JFK - KGS

JFKKGS

New York John F Kennedy Intl

Sun 10/19

7:45 pm-1:20 pm

1 stop34h 35m

Kos

Sat 10/25

2:05 pm-12:20 pm

1 stop29h 15m

$1,313

AtlantaKos

ATL - KGS

ATLKGS

Atlanta Hartsfield-Jackson

Sun 10/12

10:25 pm-9:00 pm

1 stop15h 35m

Kos

Wed 10/22

9:45 pm-8:35 pm

1 stop29h 50m

$1,513

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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
7.6
1,737 reviews
Search SWISS flights
LufthansaPriceFrom $602Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
British AirwaysPriceFrom $730Free CancellationRating
6.7
7,367 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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