When did momondo last update prices for flights from Massachusetts to Kos Airport?

Prices for flights from Massachusetts to Kos Airport refresh daily.

How many operators does momondo search for flights from Massachusetts to Kos Airport?

The number of operators available for flights from Massachusetts to Kos Airport is 2 as of August 2025.

How old do you have to be to fly from Massachusetts to Kos Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts 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.

$740 Cheap Flights from Massachusetts to Kos in 2025

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Find the cheapest flights from Massachusetts to Kos

Round-trip

One-way

Last minute

Cheap round-trip flights

8:50 pm - 10:55 amBOS-KGS

31h 05m3 stops

6:00 am - 6:50 pmKGS-BOS

19h 50m3 stops

$740

Find Deal

Fri, Oct 3 - Fri, Oct 10

5:40 pm - 11:55 pmBOS-KGS

23h 15m2 stops

11:25 am - 3:35 pmKGS-BOS

35h 10m2 stops

$964

Find Deal

Fri, Oct 3 - Fri, Oct 10

9:40 pm - 2:30 pmBOS-KGS

33h 50m1 stop

3:55 pm - 7:55 pmKGS-BOS

35h 00m1 stop

$971SWISS

Find Deal

Fri, Oct 17 - Fri, Oct 24

9:40 pm - 11:10 pmBOS-KGS

18h 30m2 stops

9:35 pm - 7:55 pmKGS-BOS

29h 20m3 stops

$995

Find Deal

Fri, Oct 3 - Fri, Oct 10

8:05 pm - 7:35 pmBOS-KGS

16h 30m2 stops

3:55 pm - 7:55 pmKGS-BOS

35h 00m1 stop

$1,001

Find Deal

Fri, Oct 17 - Fri, Oct 24

6:35 pm - 10:55 amBOS-KGS

33h 20m3 stops

6:00 am - 6:45 pmKGS-BOS

19h 45m3 stops

$1,042

Find Deal

Fri, Oct 17 - Fri, Oct 24

9:40 pm - 2:30 pmBOS-KGS

33h 50m1 stop

3:55 pm - 3:25 pmKGS-BOS

30h 30m1 stop

$1,116SWISS

Find Deal

Fri, Oct 3 - Fri, Oct 10

12:10 pm - 9:10 amBOS-KGS

38h 00m2 stops

3:55 pm - 3:25 pmKGS-BOS

30h 30m1 stop

$1,159

Find Deal

Fri, Oct 3 - Fri, Oct 10

9:40 pm - 11:55 pmBOS-KGS

19h 15m2 stops

11:25 am - 10:39 pmKGS-BOS

18h 14m2 stops

$1,178

Find Deal

Fri, Oct 17 - Fri, Oct 24

8:11 pm - 7:55 pmBOS-KGS

40h 44m3 stops

1:45 pm - 10:53 pmKGS-BOS

40h 08m2 stops

$1,902

Find Deal

Fri, Oct 17 - Fri, Oct 24

SWISS flights from Massachusetts to Kos

Our best SWISS deals on Massachusetts to Kos flight tickets

SWISS

Oct 17

BOS9:40 pmBoston Logan Intl

33h 50m

1 stop

KGS2:30 pmKos

Oct 24

KGS3:55 pmKos

35h 00m

1 stop

BOS7:55 pmBoston Logan Intl

$971

Find similar

SWISS

Oct 3

BOS9:40 pmBoston Logan Intl

33h 50m

1 stop

KGS2:30 pmKos

Oct 10

KGS3:55 pmKos

30h 30m

1 stop

BOS3:25 pmBoston Logan Intl

$1,116

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/3

8:50 pm-10:55 am

3 stops31h 05m

Kos

Fri 10/10

6:00 am-6:50 pm

3 stops19h 50m

$740

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/3

5:40 pm-11:55 pm

2 stops23h 15m

Kos

Fri 10/10

11:25 am-3:35 pm

2 stops35h 10m

$964

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/17

9:40 pm-2:30 pm

1 stop33h 50m

Kos

Fri 10/24

3:55 pm-7:55 pm

1 stop35h 00m

$971

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/3

9:40 pm-11:10 pm

2 stops18h 30m

Kos

Fri 10/10

9:35 pm-7:55 pm

3 stops29h 20m

$995

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/17

8:05 pm-7:35 pm

2 stops16h 30m

Kos

Fri 10/24

3:55 pm-7:55 pm

1 stop35h 00m

$1,001

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/17

6:35 pm-10:55 am

3 stops33h 20m

Kos

Fri 10/24

6:00 am-6:45 pm

3 stops19h 45m

$1,042

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/3

9:40 pm-2:30 pm

1 stop33h 50m

Kos

Fri 10/10

3:55 pm-3:25 pm

1 stop30h 30m

$1,116

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/3

12:10 pm-9:10 am

2 stops38h 00m

Kos

Fri 10/10

3:55 pm-3:25 pm

1 stop30h 30m

$1,159

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/17

9:40 pm-11:55 pm

2 stops19h 15m

Kos

Fri 10/24

11:25 am-10:39 pm

2 stops18h 14m

$1,178

BostonKos

BOS - KGS

BOSKGS

Boston Logan Intl

Fri 10/17

8:11 pm-7:55 pm

3 stops40h 44m

Kos

Fri 10/24

1:45 pm-10:53 pm

2 stops40h 08m

$1,902

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Massachusetts 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 Massachusetts to Kos is on a Saturday when prices can be found for as low as $1,035. On the other hand, Monday is the most expensive day to depart from Massachusetts because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,398.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from Massachusetts in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,202 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 $1,219 on average. Flights to Kos from Massachusetts in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Massachusetts to Kos flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Kos

Direct flights	None

There are no direct flights from Massachusetts to Kos. There are no popular flight routes from Massachusetts to Kos.

Search flight deals

When did momondo last update prices for flights from Massachusetts to Kos Airport?
Prices for flights from Massachusetts to Kos Airport refresh daily.
How many operators does momondo search for flights from Massachusetts to Kos Airport?
The number of operators available for flights from Massachusetts to Kos Airport is 2 as of August 2025.
How old do you have to be to fly from Massachusetts to Kos Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts 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 Massachusetts to Kos

Compare and see reviews for airlines that fly from Massachusetts to Kos with momondo

Airline	Rating	Free Cancellation	Price
SWISS	PriceFrom $954	Free Cancellation	Rating 7.6 1,702 reviews		Search SWISS flights
Lufthansa	PriceFrom $981	Free Cancellation	Rating 6.8 7,344 reviews		Search Lufthansa flights

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Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Kos?

It is quick and easy to find Massachusetts to Kos flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Kos that suits you.

Can I find flights from Massachusetts to Kos with flexible booking policies on momondo?

Yes. All flights to Kos from Massachusetts on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Massachusetts to Kos?

momondo provides multiple filters to help you find the best flight to Kos from Massachusetts. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Massachusetts to Kos right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Massachusetts to Kos now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kos and let you know when they change.