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$966 Find cheap flights from Massachusetts to Kos

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Kos departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/23
Sun 6/30

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Cheapest flight

$966
Flight from Boston to Kos

FAQs for booking flights from Massachusetts 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.

See more FAQs

Prefer to fly non-stop from Massachusetts to Kos?

Find which airlines fly direct from Massachusetts to Kos, which days they fly and book direct flights.

Nonstop departures

Massachusetts to Kos

Monday

Aegean Airlines, Austrian Airlines, BlueBird Airways, +22 more

Aegean Airlines, Austrian Airlines, +23 more

Tuesday

Aegean Airlines, Aer Lingus, Alaska Airlines, +23 more

Aegean Airlines, Aer Lingus, +24 more

Wednesday

Aegean Airlines, Austrian Airlines, British Airways, +20 more

Aegean Airlines, Austrian Airlines, +21 more

Thursday

Aegean Airlines, BlueBird Airways, British Airways, +20 more

Aegean Airlines, BlueBird Airways, +21 more

Friday

Aegean Airlines, Austrian Airlines, BlueBird Airways, +21 more

Aegean Airlines, Austrian Airlines, +22 more

Saturday

Aegean Airlines, Aer Lingus, Austrian Airlines, +23 more

Aegean Airlines, Aer Lingus, +24 more

Sunday

Aegean Airlines, Austrian Airlines, BlueBird Airways, +20 more

Aegean Airlines, Austrian Airlines, +21 more

See more direct flights

Nonstop returns

Kos to Massachusetts

Monday

Aegean Airlines, Austrian Airlines, BlueBird Airways, +22 more

Aegean Airlines, Austrian Airlines, +23 more

Tuesday

Aegean Airlines, Aer Lingus, Alaska Airlines, +23 more

Aegean Airlines, Aer Lingus, +24 more

Wednesday

Aegean Airlines, Austrian Airlines, British Airways, +20 more

Aegean Airlines, Austrian Airlines, +21 more

Thursday

Aegean Airlines, BlueBird Airways, British Airways, +20 more

Aegean Airlines, BlueBird Airways, +21 more

Friday

Aegean Airlines, Austrian Airlines, BlueBird Airways, +21 more

Aegean Airlines, Austrian Airlines, +22 more

Saturday

Aegean Airlines, Aer Lingus, Austrian Airlines, +23 more

Aegean Airlines, Aer Lingus, +24 more

Sunday

Aegean Airlines, Austrian Airlines, BlueBird Airways, +20 more

Aegean Airlines, Austrian Airlines, +21 more

See more direct flights
See more direct flights

Book cheap flights from Massachusetts to Kos

Recent round-trip flight deals

9/2Mon
1 stopAer Lingus
17h 10mBOS-KGS
9/17Tue
1 stopAer Lingus
22h 25mKGS-BOS
$966
10/2Wed
1 stopLufthansa
12h 20mBOS-KGS
10/12Sat
1 stopLufthansa
28h 35mKGS-BOS
$1,021
10/2Wed
2 stopsLufthansa
24h 40mBOS-KGS
10/12Sat
1 stopLufthansa
28h 35mKGS-BOS
$1,046
10/2Wed
2 stopsBrussels Airlines
37h 15mBOS-KGS
10/12Sat
2 stopsBrussels Airlines
52h 15mKGS-BOS
$1,064
9/4Wed
1 stopLufthansa
16h 15mBOS-KGS
9/14Sat
1 stopLufthansa
28h 35mKGS-BOS
$1,150
9/2Mon
1 stopSWISS
15h 10mBOS-KGS
10/5Sat
1 stopSWISS
30h 15mKGS-BOS
$1,189
9/2Mon
1 stop
15h 10mBOS-KGS
9/17Tue
2 stops
15h 40mKGS-BOS
$1,291
9/2Mon
2 stopsBrussels Airlines
31h 10mBOS-KGS
10/5Sat
2 stopsBrussels Airlines
52h 15mKGS-BOS
$1,292
7/4Thu
1 stopSWISS
15h 00mBOS-KGS
7/9Tue
1 stopSWISS
25h 40mKGS-BOS
$1,319
9/2Mon
2 stops
18h 20mBOS-KGS
9/17Tue
2 stops
15h 40mKGS-BOS
$1,376

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Flights to Kos

Destination:

Kos (KGS)Greece

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