Question 1

What is the cheapest flight from Boston to Kos?

Accepted Answer

In the last 3 days, the lowest price for a flight from Boston to Kos was $783 for a one-way ticket and $1,031 for a round-trip. <a href='/flight-routes/Boston-Logan-Intl-BOS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 2

Do I need a passport to fly between Boston and Kos?

Accepted Answer

Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Kos. <a href='/flight-routes/Boston-Logan-Intl-BOS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 3

Which aircraft models fly most regularly from Boston to Kos?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 4

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

Accepted Answer

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 Boston to Kos. <a href='/flight-routes/Boston-Logan-Intl-BOS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 5

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

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Boston is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Boston-Logan-Intl-BOS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 6

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

Accepted Answer

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 Boston with another airline. Booking your flights between Boston and KGS can sometimes prove cheaper using this method. <a href='/flight-routes/Boston-Logan-Intl-BOS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 7

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

Accepted Answer

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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Boston-Logan-Intl-BOS/Kos-KGS'>Visit our flight page for the latest deals!>/a>

Question 8

What is the cheapest layover airport when flying from Boston to Kos?

Accepted Answer

Flights via Frankfurt am Main (FRA) offer the most affordable fares, with an average round-trip price of $1,278.

Question 9

What is the most popular layover airport when flying from Boston to Kos?

Accepted Answer

Zurich (ZRH) is the top choice – 75% of KAYAK users who clicked on 1-stop flights from Boston to Kos picked an itinerary connecting there.

Question 10

Which layover airport has the quickest connection when flying from Boston to Kos?

Accepted Answer

If you prefer a quick connection, Frankfurt am Main (FRA) often has the shortest layovers from Boston to Kos, with an average of 2h 00m.

Question 11

Which layover airport offers the shortest total travel time from Boston to Kos?

Accepted Answer

Consider flying via Frankfurt am Main (FRA) for the shortest journey. The average one-way travel time for flights connecting there is 12h 45m.

Question 12

Which airlines provide the cheapest flights from Boston to Kos?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Boston to Kos were found on SWISS ($1,031) and Lufthansa ($1,104).

Question 13

Which airlines provide the cheapest flights from Boston to Kos?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Boston to Kos were found on SWISS ($1,031) and Lufthansa ($1,104).

BOS - KGS

$783 Find Cheap Flights from Boston to Kos

KAYAK searches hundreds of travel sites at once for deals on flights to Kos

Everything you should know

Cheap Flights from Boston to Kos (BOS-KGS)

Recent round-trip flight deals from Boston to Kos

Recent one-way flight deals from Boston to Kos

KAYAK's insights & trends for Boston to Kos flights

Get data-powered insights and trends into flights from Boston to Kos to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Kos?

In the past 3 days, the cheapest round-trip tickets from Boston to Kos were found on SWISS ($1,031) and Lufthansa ($1,104).

What is the most popular layover airport when flying from Boston to Kos?

Zurich (ZRH) is the top choice – 75% of KAYAK users who clicked on 1-stop flights from Boston to Kos picked an itinerary connecting there.

What is the cheapest layover airport when flying from Boston to Kos?

Flights via Frankfurt am Main (FRA) offer the most affordable fares, with an average round-trip price of $1,278.

Which layover airport offers the shortest total travel time from Boston to Kos?

Consider flying via Frankfurt am Main (FRA) for the shortest journey. The average one-way travel time for flights connecting there is 12h 45m.

Which layover airport has the quickest connection when flying from Boston to Kos?

If you prefer a quick connection, Frankfurt am Main (FRA) often has the shortest layovers from Boston to Kos, with an average of 2h 00m.

Good to know

When to book flights from Boston to Kos

FAQs for booking flights from Boston to Kos

What is the cheapest flight from Boston to Kos?

In the last 3 days, the lowest price for a flight from Boston to Kos was $783 for a one-way ticket and $1,031 for a round-trip.

Do I need a passport to fly between Boston and Kos?

Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Kos.

Which aircraft models fly most regularly from Boston to Kos?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Boston 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 Boston to Kos.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kos from Boston 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 Boston 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 Boston with another airline. Booking your flights between Boston and KGS can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston 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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Boston to Kos

Information on your arrival and departure airports

Cabin class types available on flights from Boston to Kos

Complete your trip to Kos with a hotel stay or car rental

Find direct flights to and from Boston and Kos

Flights to other popular destinations

Flights from domestic origins to Kos

Choose which airport to fly into in Kos