Cheap Flights from Boston Logan International to Kos

Compare Boston Logan International to Kos flight deals

Find the cheapest month or even day of the year to fly to Kos

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Flight deals from Boston Logan International to Kos

Looking for a cheap last-minute deal or the best return flight from Boston Logan International Airport to Kos Airport? If you want to travel next month, return fares start from R 14,945. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Boston Logan International to Kos

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Kos flights are currently cheapest in July.

Boston to Kos: Flight information

The things to know before you go.
Cheapest flight foundR 5,556
Cheapest month to flyJuly

Finding cheap flights from Boston Logan International to Kos: Frequently asked questions

The best price we found for a return flight from Boston Logan International to Kos is R 13,534. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Boston Logan International to Kos. But we found flights with one or more stops from R 13,534.
As of July 2026, there are no flights flying from Boston Logan International to Kos.
The cheapest month to fly from Boston Logan International to Kos is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Kos Airport on Friday, 18 September 2026.
No airlines currently offer direct flights between Boston Logan International Airport and Kos Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kos but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kos is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Icelandair offers the cheapest flight tickets to Kos.

Travelling from Boston Logan International Airport (BOS) to Kos Airport (KGS): what you need to know

  • Kos is seven hours ahead of Boston and observes the UTC+2 timezone.

  • To ensure you catch your BOS to KGS flight, allow plenty of time for things like baggage drop and finding your gate. Turning up two hours before international departures and one hour before domestic flights is the general travel rule.

  • Travelling during a peak time such as July? School holidays and other popular periods can lead to longer lines and delays at check-in and security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from Boston Logan International Airport to Kos Airport. Just uncheck 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Check out these options between BOS and KGS:

    • Amsterdam Schiphol Airport

    • Frankfurt am Main Airport

    • Zurich Airport

How to find the cheapest flights from Boston Logan International Airport (BOS) to Kos Airport (KGS)

  • R 5,556 is the lowest price for a one-way Boston Logan International Airport to Kos Airport flight. Return flights start from R 13,534. These prices may change based on demand.

  • To score cheap tickets from BOS to KGS, book in advance. Airlines usually offer lower prices when flights are first made available.

  • Getting cheap flights from Boston Logan International Airport to Kos Airport is more likely if you can be flexible with your travel plans. Use the 'Whole month' tool to see the lowest prices across each month and land a great deal.

  • Landing cheap flights from BOS to KGS is easy with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as a lower fare pops up.

  • Tailor your flights with filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Boston Logan International Airport to Kos Airport.

Handy information about Boston Logan International Airport (BOS)

  • BOS is located at One Harborside Drive.

  • 75% of flights that leave from Boston Logan International Airport arrive at their destination on time.

  • Boston Logan International Airport is around 8 kilometres from central Boston. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 20 minutes or so to arrive, depending on the traffic.

  • Expect a trip time of around 25 minutes when using public transport.

  • Get your journey off to a relaxed start by staying near BOS. Whether you have an early flight from Boston Logan International Airport to Kos Airport or want to avoid feeling rushed, these stays have you covered:

Arriving at Kos Airport (KGS)

  • The last thing you want is a long trip to your hotel if you're landing late on a Boston Logan International Airport to Kos Airport flight. Stay at one of these accommodation options near KGS instead:

  • Grab a Kos Airport rental car and explore Kos and beyond with your own set of wheels. Abbycar, Green Motion and Caldera are leading providers you can book with here.

  • Get the best deal by reserving your vehicle from Kos Airport about three weeks before your trip.

Getting from Kos Airport (KGS) to central Kos

  • Kos Airport is approximately 26 kilometres from central Kos. The drive time takes around 30 minutes.

  • It'll take around 40 minutes when travelling by public transport.

When to fly to Kos Airport (KGS)

  • It's time to pick your travel dates for your flight from Boston Logan International Airport to Kos Airport. July is the most popular month to head to Kos. If you prefer a more relaxed vibe, go in March.

Explore more of Greece

  • Kos has plenty to offer, but there are so many other corners of Greece just waiting to be discovered. Around 121 kilometres south-east of Kos, a trip to Athens will keep your itinerary packed. Don't miss top attractions like Acropolis of Athens, The Parthenon and Erechtheion.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.