How does KAYAK find such low prices on flights from Massachusetts to Kos?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Kos.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Kos?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Massachusetts to Kos?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kos with an airline and back to Massachusetts with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Kos?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kos from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Cheap Flights from Massachusetts to Kos

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Massachusetts to Kos

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

Round-trip

Recent round-trip flight deals from Massachusetts to Kos

Mon, Nov 2 - Mon, Nov 9

7:50 pm - 7:45 amBOS Boston Logan Intl-KGS Kos

28h 55m3 stops Reykjavik Keflavik Intl Paris Charles de Gaulle Athens Eleftherios V.

8:40 pm - 5:50 pmKGS Kos-BOS Boston Logan Intl

28h 10m3 stops Athens Eleftherios V. Paris Charles de Gaulle Reykjavik Keflavik Intl

$970Multiple Airlines

Mon, Feb 22 - Mon, Mar 1

8:40 pm - 8:05 pmBOS Boston Logan Intl-KGS Kos

16h 25m2 stops Munich Franz Josef Strauss Athens Eleftherios V.

8:35 pm - 8:20 pmKGS Kos-BOS Boston Logan Intl

30h 45m2 stops Athens Eleftherios V. Zurich

$1,020Multiple Airlines

Sun, Feb 21 - Mon, Mar 1

6:55 pm - 4:45 pmBOS Boston Logan Intl-KGS Kos

14h 50m2 stops Vienna Intl Athens Eleftherios V.

8:35 pm - 8:20 pmKGS Kos-BOS Boston Logan Intl

30h 45m2 stops Athens Eleftherios V. Zurich

$1,024Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

7:50 pm - 7:45 amBOS Boston Logan Intl-KGS Kos

28h 55m3 stops Reykjavik Keflavik Intl Paris Charles de Gaulle Athens Eleftherios V.

2:05 pm - 2:30 pmKGS Kos-BOS Boston Logan Intl

31h 25m3 stops Athens Eleftherios V. Barcelona-El Prat Lisbon Humberto Delgado

$1,038Multiple Airlines

Sun, Mar 14 - Mon, Mar 22

10:25 am - 4:45 pmBOS Boston Logan Intl-KGS Kos

24h 20m2 stops Montreal Pierre Elliott Trudeau Intl Athens Eleftherios V.

2:05 pm - 2:30 pmKGS Kos-BOS Boston Logan Intl

30h 25m2 stops Athens Eleftherios V. Vienna Intl

$1,079Multiple Airlines

Mon, Feb 22 - Sun, Feb 28

8:40 pm - 8:05 pmBOS Boston Logan Intl-KGS Kos

16h 25m2 stops Munich Franz Josef Strauss Athens Eleftherios V.

8:35 pm - 1:45 pmKGS Kos-BOS Boston Logan Intl

24h 10m2 stops Athens Eleftherios V. Frankfurt am Main

$1,085Multiple Airlines

Sun, Feb 21 - Sun, Feb 28

6:55 pm - 4:45 pmBOS Boston Logan Intl-KGS Kos

14h 50m2 stops Vienna Intl Athens Eleftherios V.

8:35 pm - 1:45 pmKGS Kos-BOS Boston Logan Intl

24h 10m2 stops Athens Eleftherios V. Frankfurt am Main

$1,088Multiple Airlines

Sat, Feb 20 - Mon, Mar 1

8:40 pm - 4:45 pmBOS Boston Logan Intl-KGS Kos

13h 05m2 stops Munich Franz Josef Strauss Athens Eleftherios V.

8:35 pm - 1:30 pmKGS Kos-BOS Boston Logan Intl

23h 55m2 stops Athens Eleftherios V. Vienna Intl

$1,098Multiple Airlines

Sat, Mar 13 - Mon, Mar 22

8:40 pm - 7:45 amBOS Boston Logan Intl-KGS Kos

28h 05m2 stops Munich Franz Josef Strauss Athens Eleftherios V.

8:35 pm - 7:35 pmKGS Kos-BOS Boston Logan Intl

29h 00m2 stops Athens Eleftherios V. Munich Franz Josef Strauss

$1,100Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

9:50 pm - 1:30 pmBOS Boston Logan Intl-KGS Kos

32h 40m1 stop Zurich

2:05 pm - 5:50 pmKGS Kos-BOS Boston Logan Intl

34h 45m3 stops Athens Eleftherios V. London Heathrow Reykjavik Keflavik Intl

$1,126Multiple Airlines

Useful Info

Cheapest flight	$970

Flight from Boston to Kos

How does KAYAK find such low prices on flights from Massachusetts to Kos?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Kos.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Kos?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Massachusetts to Kos?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kos with an airline and back to Massachusetts with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Kos?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kos from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.