What is the difference between the most popular and the most frequent airline at Kos?

American Airlines operates the most flights from the United States to Kos at 0 per week, while SWISS is the airline most often selected by KAYAK users searching for flights from the United States to Kos. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

Which city has the cheapest flights to Kos?

Based on fares booked in the past 5 days, the cheapest flights to Kos are from New York, starting at $989 round-trip.

How do I know if a flight to Kos is a good deal?

A good deal on a flight to Kos is around $1,005 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

How expensive are last-minute flights to Kos?

Last-minute fares to Kos (booked within 2 weeks of departure) are typically 9% lower than the average round-trip fare of $1,198. Booking late can sometimes save money, but availability is limited.

What is the cheapest flight to Kos?

New York John F Kennedy Intl Airport to Kos is the cheapest route at $989 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Kos?

On average, a round-trip flight from the United States to Kos costs $1,198, based on KAYAK data over the past 12 months. Round-trip fares from Miami average $881, while San Francisco runs a bit higher at $901.

What is the cheapest day to fly to Kos?

Tuesday is the cheapest day to fly to Kos at $1,099 round-trip on average over the past 12 months on KAYAK. Wednesday is the most expensive at $1,358.

What’s the cheapest month to fly to Kos?

•January is the cheapest month to fly to Kos with an average price of $591 round-trip. •May ($1,391) and June ($1,360) are the most expensive. Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Kos?

Night flights to Kos are the cheapest at $1,146 round-trip on average. Morning flights are the most expensive at $1,452.

What is a good deal for flights to Kos?

Flights under $1,005 are considered a good deal. 25% of KAYAK users found round-trip flights to Kos at or below these prices, with the lowest fares from: •Miami $831 •San Francisco $901 •Chicago $933.

When are flights to Kos the cheapest?

Flights to Kos are cheapest 26 weeks before departure. Booking in this window typically costs about 30% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

What are the most popular airlines flying to Kos?

SWISS is the most popular airline flying to Kos among KAYAK users, followed by Lufthansa and Austrian Airlines.

$856 CHEAP FLIGHTS to Kos in 2026/27

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Cheapest round-trip

$989

Typical prices: $1,005-$1,459

Multiple Airlines

Sun 10/21Sun 10/28

JFK - KGS • 3 stops

Cheapest one-way

$856

Typical prices: $539-$802

Multiple Airlines

Mon 11/19

MIA - KGS • 2 stops

Top airlines

Aegean Airlines

Best reviews • 8.1 score

Airline reviews

Top routes

MIA - KGS

Cheapest • 28% average savings

NYC - KGS

Most popular

Insights

When to book

26 weeks

in advance

Our data shows that travelers who book at least 26 weeks in advance save around 30% compared to booking last minute.

Insights

When to travel

January

Cheapest • 51% price drop

July

Most popular

Good to know

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We hope you love your trip to Kos!

Flight Deals

Cheap Flights to Kos

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

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Recent round-trip flight deals to Kos

Wed, Oct 21 - Wed, Oct 28

4:55 pm - 9:25 pmJFK New York John F Kennedy Intl-KGS Kos

21h 30m3 stops Dublin Edinburgh Turnhouse Bergamo Orio Al Serio

8:35 pm - 5:15 pmKGS Kos-JFK New York John F Kennedy Intl

26h 40m3 stops Athens Eleftherios V. Cairo Amman Queen Alia Intl

$989Multiple Airlines

Sat, Nov 14 - Sun, Nov 22

12:10 am - 7:45 amEWR Newark-KGS Kos

24h 35m3 stops Lisbon Humberto Delgado London Heathrow Athens Eleftherios V.

2:05 pm - 3:20 pmKGS Kos-EWR Newark

32h 15m3 stops Athens Eleftherios V. Barcelona-El Prat Lisbon Humberto Delgado

$1,004Multiple Airlines

Tue, Oct 20 - Wed, Oct 28

12:30 am - 7:20 amJFK New York John F Kennedy Intl-KGS Kos

23h 50m2 stops Rome Fiumicino Athens Eleftherios V.

8:35 pm - 5:15 pmKGS Kos-JFK New York John F Kennedy Intl

26h 40m3 stops Athens Eleftherios V. Cairo Amman Queen Alia Intl

$1,036Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

3:30 pm - 8:00 pmEWR Newark-KGS Kos

21h 30m2 stops Montreal Pierre Elliott Trudeau Intl Athens Eleftherios V.

8:40 pm - 10:10 pmKGS Kos-EWR Newark

32h 30m3 stops Athens Eleftherios V. Barcelona-El Prat Lisbon Humberto Delgado

$1,058Multiple Airlines

Thu, Oct 15 - Mon, Oct 19

5:05 pm - 10:00 pmBOS Boston Logan Intl-KGS Kos

21h 55m2 stops Toronto Pearson Intl Dublin

6:05 pm - 4:05 pmKGS Kos-BOS Boston Logan Intl

29h 00m3 stops Athens Eleftherios V. Dublin Toronto Pearson Intl

$1,079Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

11:45 pm - 8:00 pmEWR Newark-KGS Kos

13h 15m1 stop Athens Eleftherios V.

5:15 pm - 9:10 pmKGS Kos-EWR Newark

34h 55m1 stop Athens Eleftherios V.

$1,083Aegean Airlines

Fri, Oct 16 - Wed, Oct 21

4:05 pm - 7:45 pmDEN Denver Intl-KGS Kos

18h 40m1 stop Munich Franz Josef Strauss

1:30 pm - 11:54 pmKGS Kos-DEN Denver Intl

19h 24m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,106Lufthansa

Fri, Oct 16 - Wed, Oct 21

9:10 am - 7:45 pmDEN Denver Intl-KGS Kos

25h 35m2 stops Vancouver Intl Munich Franz Josef Strauss

8:40 pm - 11:08 pmKGS Kos-DEN Denver Intl

35h 28m2 stops Zurich Vancouver Intl

$1,108Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

11:52 am - 1:35 pmEWR Newark-KGS Kos

18h 43m2 stops Montreal Pierre Elliott Trudeau Intl Athens Eleftherios V.

8:40 pm - 1:55 pmKGS Kos-EWR Newark

24h 15m2 stops Athens Eleftherios V. Frankfurt am Main

$1,110Multiple Airlines

Fri, Oct 16 - Wed, Oct 21

4:05 pm - 7:45 pmDEN Denver Intl-KGS Kos

18h 40m1 stop Munich Franz Josef Strauss

7:55 pm - 2:20 pmKGS Kos-DEN Denver Intl

27h 25m1 stop Munich Franz Josef Strauss

$1,112Lufthansa

Recent last minute flight deals to Kos

Mon, Oct 5 - Mon, Oct 12

9:45 pm - 7:40 pmEWR Newark-KGS Kos

14h 55m1 stop Zurich

8:50 pm - 1:55 pmKGS Kos-EWR Newark

24h 05m1 stop Vienna Intl

$878Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

4:25 pm - 7:20 amJFK New York John F Kennedy Intl-KGS Kos

31h 55m3 stops Frankfurt am Main Berlin Brandenburg Athens Eleftherios V.

8:25 pm - 2:25 pmKGS Kos-JFK New York John F Kennedy Intl

25h 00m2 stops Berlin Brandenburg Frankfurt am Main

$942Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

8:30 pm - 7:40 pmJFK New York John F Kennedy Intl-KGS Kos

16h 10m1 stop Zurich

9:45 am - 1:35 pmKGS Kos-JFK New York John F Kennedy Intl

34h 50m1 stop Frankfurt am Main

$951Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

7:25 pm - 7:40 pmJFK New York John F Kennedy Intl-KGS Kos

17h 15m2 stops Geneva Geneve-Cointrin Zurich

9:45 am - 1:35 pmKGS Kos-JFK New York John F Kennedy Intl

34h 50m1 stop Frankfurt am Main

$1,007Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

4:25 pm - 7:20 amJFK New York John F Kennedy Intl-KGS Kos

31h 55m3 stops Frankfurt am Main Milan Malpensa Athens Eleftherios V.

12:40 pm - 2:25 pmKGS Kos-JFK New York John F Kennedy Intl

32h 45m3 stops Munich Franz Josef Strauss Milan Malpensa Frankfurt am Main

$1,080Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

9:45 pm - 7:40 pmEWR Newark-KGS Kos

14h 55m1 stop Zurich

8:50 pm - 1:10 pmKGS Kos-EWR Newark

23h 20m2 stops Vienna Intl Brussels Bruxelles-National

$1,156Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

7:25 pm - 7:40 pmJFK New York John F Kennedy Intl-KGS Kos

17h 15m2 stops Geneva Geneve-Cointrin Zurich

11:00 am - 2:20 pmKGS Kos-JFK New York John F Kennedy Intl

34h 20m2 stops Zurich Geneva Geneve-Cointrin

$1,169SWISS

Mon, Oct 5 - Mon, Oct 12

11:25 pm - 12:40 pmEWR Newark-KGS Kos

30h 15m2 stops Dublin Frankfurt am Main

8:50 pm - 1:10 pmKGS Kos-EWR Newark

23h 20m2 stops Vienna Intl Brussels Bruxelles-National

$1,248Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

10:25 am - 8:25 pmEWR Newark-KGS Kos

27h 00m3 stops Montreal Pierre Elliott Trudeau Intl Ottawa London Heathrow

7:50 am - 9:00 pmKGS Kos-EWR Newark

20h 10m2 stops Athens Eleftherios V. Paris Charles de Gaulle

$1,250Multiple Airlines

Fri, Oct 9 - Sat, Oct 17

3:55 pm - 9:10 amMSP Minneapolis St Paul-KGS Kos

33h 15m2 stops Frankfurt am Main Vienna Intl

6:45 pm - 2:00 pmKGS Kos-MSP Minneapolis St Paul

51h 15m2 stops Vienna Intl Frankfurt am Main

$1,389Austrian Airlines

All round-trip flight deals to Kos

Wed, Oct 21 - Wed, Oct 28

4:55 pm - 9:25 pmJFK New York John F Kennedy Intl-KGS Kos

21h 30m3 stops Dublin Edinburgh Turnhouse Bergamo Orio Al Serio

8:35 pm - 5:15 pmKGS Kos-JFK New York John F Kennedy Intl

26h 40m3 stops Athens Eleftherios V. Cairo Amman Queen Alia Intl

$989Multiple Airlines

Sat, Nov 14 - Sun, Nov 22

12:10 am - 7:45 amEWR Newark-KGS Kos

24h 35m3 stops Lisbon Humberto Delgado London Heathrow Athens Eleftherios V.

2:05 pm - 3:20 pmKGS Kos-EWR Newark

32h 15m3 stops Athens Eleftherios V. Barcelona-El Prat Lisbon Humberto Delgado

$1,004Multiple Airlines

Tue, Oct 20 - Wed, Oct 28

12:30 am - 7:20 amJFK New York John F Kennedy Intl-KGS Kos

23h 50m2 stops Rome Fiumicino Athens Eleftherios V.

8:35 pm - 5:15 pmKGS Kos-JFK New York John F Kennedy Intl

26h 40m3 stops Athens Eleftherios V. Cairo Amman Queen Alia Intl

$1,036Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

3:30 pm - 8:00 pmEWR Newark-KGS Kos

21h 30m2 stops Montreal Pierre Elliott Trudeau Intl Athens Eleftherios V.

8:40 pm - 10:10 pmKGS Kos-EWR Newark

32h 30m3 stops Athens Eleftherios V. Barcelona-El Prat Lisbon Humberto Delgado

$1,058Multiple Airlines

Thu, Oct 15 - Mon, Oct 19

5:05 pm - 10:00 pmBOS Boston Logan Intl-KGS Kos

21h 55m2 stops Toronto Pearson Intl Dublin

6:05 pm - 4:05 pmKGS Kos-BOS Boston Logan Intl

29h 00m3 stops Athens Eleftherios V. Dublin Toronto Pearson Intl

$1,079Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

11:45 pm - 8:00 pmEWR Newark-KGS Kos

13h 15m1 stop Athens Eleftherios V.

5:15 pm - 9:10 pmKGS Kos-EWR Newark

34h 55m1 stop Athens Eleftherios V.

$1,083Aegean Airlines

Fri, Oct 16 - Wed, Oct 21

4:05 pm - 7:45 pmDEN Denver Intl-KGS Kos

18h 40m1 stop Munich Franz Josef Strauss

1:30 pm - 11:54 pmKGS Kos-DEN Denver Intl

19h 24m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,106Lufthansa

Fri, Oct 16 - Wed, Oct 21

9:10 am - 7:45 pmDEN Denver Intl-KGS Kos

25h 35m2 stops Vancouver Intl Munich Franz Josef Strauss

8:40 pm - 11:08 pmKGS Kos-DEN Denver Intl

35h 28m2 stops Zurich Vancouver Intl

$1,108Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

11:52 am - 1:35 pmEWR Newark-KGS Kos

18h 43m2 stops Montreal Pierre Elliott Trudeau Intl Athens Eleftherios V.

8:40 pm - 1:55 pmKGS Kos-EWR Newark

24h 15m2 stops Athens Eleftherios V. Frankfurt am Main

$1,110Multiple Airlines

Fri, Oct 16 - Wed, Oct 21

4:05 pm - 7:45 pmDEN Denver Intl-KGS Kos

18h 40m1 stop Munich Franz Josef Strauss

7:55 pm - 2:20 pmKGS Kos-DEN Denver Intl

27h 25m1 stop Munich Franz Josef Strauss

$1,112Lufthansa

Booking Insights

Price, demand and travel trends for flights to Kos

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Kos?: New York John F Kennedy Intl Airport to Kos is the cheapest route at $989 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.
How much is a flight to Kos? Average and cheapest price for all round-trip flights to Kos from each origin found by users searching on KAYAK in the last 12 months.: On average, a round-trip flight from the United States to Kos costs $1,198, based on KAYAK data over the past 12 months. Round-trip fares from Miami average $881, while San Francisco runs a bit higher at $901.
What is the cheapest day to fly to Kos?: Tuesday is the cheapest day to fly to Kos at $1,099 round-trip on average over the past 12 months on KAYAK. Wednesday is the most expensive at $1,358.
What’s the cheapest month to fly to Kos? To calculate monthly average prices, KAYAK takes all prices for each month over the last 12 months for flights to Kos, removes the top 0.1% to account for outliers, then takes the median of all values for each month.: •January is the cheapest month to fly to Kos with an average price of $591 round-trip.
•May ($1,391) and June ($1,360) are the most expensive.

Based on KAYAK data over the past 12 months.
What is the cheapest time of day to fly to Kos? Average price for all round-trip flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Night flights to Kos are the cheapest at $1,146 round-trip on average. Morning flights are the most expensive at $1,452.
What is a good deal for flights to Kos?: Flights under $1,005 are considered a good deal. 25% of KAYAK users found round-trip flights to Kos at or below these prices, with the lowest fares from:
•Miami $831
•San Francisco $901
•Chicago $933.
When are flights to Kos the cheapest?: Flights to Kos are cheapest 26 weeks before departure. Booking in this window typically costs about 30% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Expert advice

Our travel experts

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Emily Zemler

Expert on SWISS

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Low season	February
High season	July
Cheapest flight	$856

Beat the crowds with an average 98% drop in travelers.

The most popular month to fly with an average 234% increase in travelers.

One-way flight from Miami to Kos

When to book flights to Kos

Are your dates flexible? Find out the best times to travel to Kos based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. The information is for flights to Kos based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How do I know if a flight to Kos is a good deal?
A good deal on a flight to Kos is around $1,005 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
Which city has the cheapest flights to Kos?
Based on fares booked in the past 5 days, the cheapest flights to Kos are from New York, starting at $989 round-trip.
How expensive are last-minute flights to Kos?
Last-minute fares to Kos (booked within 2 weeks of departure) are typically 9% lower than the average round-trip fare of $1,198. Booking late can sometimes save money, but availability is limited.
What is the difference between the most popular and the most frequent airline at Kos?
American Airlines operates the most flights from the United States to Kos at 0 per week, while SWISS is the airline most often selected by KAYAK users searching for flights from the United States to Kos. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

For the best chance at a low fare to Kos, book around 26 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 30% lower during this window than last-minute fares.
For flights to Kos, a good round-trip fare is around $1,005. If you find a fare below that, you're getting a strong deal.
If your travel dates are flexible, consider flying to Kos in January. Round-trip fares historically average $591, making January the cheapest month to travel based on KAYAK data from the last 12 months.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat-selection costs on budget carriers.
• Verify whether you need any travel documents beyond ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.
Shift your departure to evening to save up to $306 per round-trip. Evening flights to Kos average $1,146 compared to $1,452 for morning flights.

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Everything you should know

Cheap Flights to Kos

Recent round-trip flight deals to Kos

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Recent last minute flight deals to Kos

All round-trip flight deals to Kos

Price, demand and travel trends for flights to Kos

What is the cheapest flight to Kos?

How much is a flight to Kos?

What is the cheapest day to fly to Kos?

What’s the cheapest month to fly to Kos?

What is the cheapest time of day to fly to Kos?

What is a good deal for flights to Kos?

When are flights to Kos the cheapest?

What are the most popular airlines flying to Kos?

Expert advice for your flight to Kos

Key details for flights to Kos

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Cheapest flight

When to book flights to Kos

Your questions about flights to Kos, answered

Your guide to booking Kos flights

Traveling to a place near Kos?

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