Cheap flights from Boston (BOS) to Kos (KGS) from $1,072

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. 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.
BOS — KGS
Apr 16 — Apr 231

What is the cheapest day to fly round-trip from Boston to Kos?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 19% on your flight compared to booking on days when demand is much higher.

When is the cheapest time to fly from Boston to Kos (BOS - KGS)?

When flying from Boston to Kos, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 15% versus a flight in the morning.

Cheap Condor flights from Boston to Kos

Explore cheap flight options specifically provided by Condor for the route between Boston and Kos. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated April 11, 2024.
Find some of the cheapest Condor flights traveling from Boston to Kos. It's recommended that users confirm their flight details before booking.
Thu 7/44:10 pmBOS - KGS
1 stop16h 35mCondor
Tue 7/97:25 pmKGS - BOS
1 stop25h 00mCondor
Deal found 4/11$1,072
Thu 7/44:10 pmBOS - KGS
1 stop16h 35mCondor
Tue 7/97:25 pmKGS - BOS
1 stop25h 00mCondor
Deal found 4/10$1,085

Cheap Brussels Airlines flights from Boston to Kos

Explore cheap flight options specifically provided by Brussels Airlines for the route between Boston and Kos. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated April 11, 2024.
Some of the lowest-priced Brussels Airlines flights we've found at this time heading from Boston to Kos. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Thu 7/48:05 pmBOS - KGS
2 stops40h 30mBrussels Airlines
Tue 7/911:15 amKGS - BOS
2 stops59h 45mBrussels Airlines
Deal found 4/11$1,973
Thu 7/48:05 pmBOS - KGS
2 stops40h 30mBrussels Airlines
Tue 7/911:15 amKGS - BOS
2 stops59h 45mBrussels Airlines
Deal found 4/10$1,988

Boston to Kos 2024 flight deals

Discover exclusive flight deals for travel between Boston and Kos in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated April 11, 2024.
These are some of the most attractive deals on flights from Boston to Kos in 2024. Check back regularly for other flight deals.
Thu 7/44:10 pmBOS - KGS
1 stop16h 35mCondor
Tue 7/97:25 pmKGS - BOS
1 stop25h 00mCondor
Deal found 4/11$1,072
Thu 7/44:10 pmBOS - KGS
1 stop16h 35mCondor
Tue 7/97:25 pmKGS - BOS
1 stop25h 00mCondor
Deal found 4/10$1,085
Sat 8/314:10 pmBOS - KGS
1 stop20h 25mMultiple Airlines
Thu 9/59:15 pmKGS - BOS
2 stops31h 20mMultiple Airlines
Deal found 4/10$1,431
Sat 8/108:05 pmBOS - KGS
1 stop31h 55mLufthansa
Sat 8/178:10 pmKGS - BOS
2 stops50h 50mLufthansa
Deal found 4/10$1,436
Sat 8/107:05 pmBOS - KGS
2 stops32h 55mLufthansa
Sat 8/178:10 pmKGS - BOS
2 stops50h 50mLufthansa
Deal found 4/10$1,441
Sat 8/314:10 pmBOS - KGS
1 stop20h 25mMultiple Airlines
Thu 9/59:15 pmKGS - BOS
1 stop21h 45mMultiple Airlines
Deal found 4/10$1,476
Sat 8/108:05 pmBOS - KGS
1 stop31h 55mLufthansa
Sat 8/178:10 pmKGS - BOS
2 stops50h 50mLufthansa
Deal found 4/11$1,478
Sat 8/107:05 pmBOS - KGS
2 stops32h 55mLufthansa
Sat 8/178:10 pmKGS - BOS
2 stops50h 50mLufthansa
Deal found 4/11$1,482
Sat 8/109:45 pmBOS - KGS
1 stop29h 15mSWISS
Sat 8/178:50 pmKGS - BOS
1 stop25h 30mSWISS
Deal found 4/10$1,484

Find flights from Boston to Kos within your budget

Customize your flight search to find flights from Boston to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated April 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,072 - $3,469

Route

Depart

Return

Price

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

1 stop16h 35m

Kos

Tue 7/9

1 stop25h 00m

$1,072

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

1 stop16h 35m

Kos

Tue 7/9

1 stop25h 00m

$1,085

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

1 stop31h 20m

Kos

Tue 7/9

2 stops55h 50m

$1,908

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

2 stops40h 30m

Kos

Tue 7/9

2 stops59h 45m

$1,973

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

2 stops40h 30m

Kos

Tue 7/9

2 stops59h 45m

$1,988

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

2 stops34h 45m

Kos

Tue 7/9

1 stop25h 40m

$2,242

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

2 stops40h 45m

Kos

Tue 7/9

3 stops52h 00m

$3,444

Boston Logan IntlKos

BOS - KGS

BOSKGS

Boston Logan Intl

Thu 7/4

2 stops35h 28m

Kos

Tue 7/9

3 stops52h 00m

$3,469

Flights are sorted by cheapest first

Deals found on 4/11

When is the cheapest time to fly from Boston to Kos?

Use this chart to determine the cheapest time to fly round-trip from Boston to Kos. Price data was last updated on April 7, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to Kos flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated April 11, 2024.
Peruse reviews from past customers who have flown with Condor and Brussels Airlines from Boston to Kos to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.8
Good
2,105 reviews

Boarding

7.9

Overall

7.8

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

7.3

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.8
Good
2,105 reviews
7.8
Good
2,105 reviews

Boarding

7.9

Overall

7.8

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

7.3

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.3
Good
615 reviews
7.8
Good
2,105 reviews

Boarding

7.9

Overall

7.8

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

7.3

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

6.9
Okay
6,927 reviews
7.8
Good
2,105 reviews

Boarding

7.9

Overall

7.8

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

7.3

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

6.5
Okay
363 reviews
7.8
Good
2,105 reviews

Boarding

7.9

Overall

7.8

Comfort

7.6

Food

7.4

Crew

8.4

Entertainment

7.3

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

Related info for your journey

Find useful and relevant information for your journey from Boston to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Boston to Kos for under $1,100 on Cheapflights?

    Yes, there are multiple flights from Boston to Kos for under $1,100. The cheapest flight booked recently is on Condor for just $1,072, but on average you can expect to pay $2,147.

  • What does BOS to KGS mean?

    This is defined as Boston Logan Intl Airport (BOS) and Kos Airport (KGS). Codes like Kos Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Boston to Kos that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to Kos with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Boston to Kos that include hotel bookings?

    Yes. In addition to deals on Boston to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

  • Can I find deals for business class flights from Boston to Kos?

    Yes. Cheapflights offers flight deals from Boston to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Boston to Kos that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to Kos?

    Yes, you can often find last-minute deals on Boston to Kos flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to Kos flight deals updated?

    The Boston to Kos flight deals you see on this page were last updated on 4/11.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Kos
See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Boston to Kos

Discover the top 2 airlines that operate flights from Boston to Kos. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated April 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$1,035Average$1,184FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest$1,095Average$1,263FlexibilityNo cancel feeOn-time79%
Search SWISS flights

Search flights from Boston to Kos by cabin class

Find flights from Boston to Kos, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Kos?

Cheapflights makes it easy to find Boston to Kos flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Boston to Kos?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Kos.

Can Cheapflights find flights from Boston to Kos with no change fees?

Yes, we can. To see specific flights from Boston to Kos with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Boston to Kos become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Kos from Boston today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.