How do I get Price Alerts for flights from Massachusetts to Kos?

Price Alerts will notify you by email when the price for flights to Kos from Massachusetts decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Massachusetts to Kos with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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 1 as of September 2026.

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.

$970 Cheap Flights from Massachusetts to Kos in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Massachusetts to Kos

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

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, 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.

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

Wed, Nov 4 - Wed, Nov 11

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

Mon, Nov 2 - Mon, Nov 9

5:15 pm - 9:15 pmBOS Boston Logan Intl-KGS Kos

21h 00m2 stops Dublin Athens Eleftherios V.

8:35 pm - 8:15 pmKGS Kos-BOS Boston Logan Intl

30h 40m3 stops Athens Eleftherios V. Madrid Barajas Lisbon Humberto Delgado

$1,140Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

9:50 pm - 8:00 pmBOS Boston Logan Intl-KGS Kos

15h 10m2 stops Zurich Athens Eleftherios V.

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

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

$1,196Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

3:10 pm - 8:05 pmBOS Boston Logan Intl-KGS Kos

21h 55m2 stops Toronto Pearson Intl Athens Eleftherios V.

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

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

$1,223Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

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

32h 40m1 stop Zurich

8:25 am - 6:35 pmKGS Kos-BOS Boston Logan Intl

17h 10m2 stops Athens Eleftherios V. Munich Franz Josef Strauss

$1,247Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

8:40 pm - 6:20 pmBOS Boston Logan Intl-KGS Kos

14h 40m1 stop Munich Franz Josef Strauss

8:35 pm - 2:30 pmKGS Kos-BOS Boston Logan Intl

24h 55m2 stops Athens Eleftherios V. Lisbon Humberto Delgado

$1,397Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

9:15 pm - 8:15 pmBOS Boston Logan Intl-KGS Kos

16h 00m1 stop Dublin

11:50 pm - 2:55 pmKGS Kos-BOS Boston Logan Intl

22h 05m2 stops Manchester Dublin

$1,605Multiple Airlines

Sat, Oct 3 - Sun, Oct 4

3:35 pm - 6:25 pmBOS Boston Logan Intl-KGS Kos

19h 50m2 stops Montreal Pierre Elliott Trudeau Intl London Heathrow

11:05 pm - 9:45 pmKGS Kos-BOS Boston Logan Intl

29h 40m2 stops Manchester Reykjavik Keflavik Intl

$1,614Multiple Airlines

Sat, Oct 3 - Sun, Oct 4

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Route

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Price

Cheapest round-trip

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Mon 11/2

7:50 pm-7:45 am

3 stops28h 55m

Kos

Mon 11/9

8:40 pm-5:50 pm

3 stops28h 10m

$970

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Wed 11/4

7:50 pm-7:45 am

3 stops28h 55m

Kos

Wed 11/11

2:05 pm-2:30 pm

3 stops31h 25m

$1,038

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Mon 11/2

9:50 pm-1:30 pm

1 stop32h 40m

Kos

Mon 11/9

2:05 pm-5:50 pm

3 stops34h 45m

$1,126

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Wed 11/4

5:15 pm-9:15 pm

2 stops21h 00m

Kos

Wed 11/11

8:35 pm-8:15 pm

3 stops30h 40m

$1,140

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Wed 11/4

9:50 pm-8:00 pm

2 stops15h 10m

Kos

Wed 11/11

8:35 pm-1:45 pm

2 stops24h 10m

$1,196

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Mon 11/2

3:10 pm-8:05 pm

2 stops21h 55m

Kos

Mon 11/9

2:05 pm-5:50 pm

3 stops34h 45m

$1,223

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Mon 11/2

9:50 pm-1:30 pm

1 stop32h 40m

Kos

Mon 11/9

8:25 am-6:35 pm

2 stops17h 10m

$1,247

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Wed 11/4

8:40 pm-6:20 pm

1 stop14h 40m

Kos

Wed 11/11

8:35 pm-2:30 pm

2 stops24h 55m

$1,397

Quickest round-trip

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Sat 10/3

9:15 pm-8:15 pm

1 stop16h 00m

Kos

Sun 10/4

11:50 pm-2:55 pm

2 stops22h 05m

$1,605

BostonKos

BOS Boston Logan Intl - KGS Kos

BOSKGS

Boston Logan Intl

Sat 10/3

3:35 pm-6:25 pm

2 stops19h 50m

Kos

Sun 10/4

11:05 pm-9:45 pm

2 stops29h 40m

$1,614

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Massachusetts to Kos flight deals and tips

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

Best Price Found	$970
Fastest flight time	16h 00m
Direct flights	None

The best flight deal from Massachusetts to Kos found on momondo in the last 72 hours is $970

The fastest flight from Massachusetts to Kos takes 16h 00m

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

Search flight deals

Frequently asked questions about flying from Massachusetts to Kos

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 1 as of September 2026.
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 $967	Free Cancellation	Rating 7.5 2,082 reviews		Search SWISS flights

Frequently asked questions about flying from Massachusetts to Kos

How do I get Price Alerts for flights from Massachusetts to Kos?
Price Alerts will notify you by email when the price for flights to Kos from Massachusetts decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Massachusetts to Kos with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Marmari

Kardamena

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.

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Airports servicing South Aegean

Karpathos Airport

Mikonos Airport

Naxos Airport

Thera Santorini Airport

Parikia Paros Airport

Rhodes Diagoras Airport

Naxos Island Airport

Cheap flights from Massachusetts to Kos from $970

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Kos departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Massachusetts to Kos

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Big names and deals

Filter for what you want

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Trusted and free

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Cheap Massachusetts to Kos flight deals and tips

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Frequently asked questions about flying from Massachusetts to Kos

Best airlines flying from Massachusetts to Kos

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

Frequently asked questions about flying from Massachusetts to Kos

Traveling to a place near Kos?

Why use momondo?

An easier way to manage your Kos trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Greece

Airports servicing South Aegean

Fly your favorite airline to Kos

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Kos

List of cabin classes available on flights landing in Kos. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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