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Kaunas

$836+ Cheap flights from Boston (BOS) to Kaunas (KUN)

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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KUN
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Boston to Kaunas

Cheapest flights from Boston to Kaunas
Explore the most affordable flight options available from Boston to Kaunas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:10 pm
BOS
-
KUN
1 stop12h 35m
Multiple Airlines
Thu 3/1911:15 am
KUN
-
BOS
1 stop14h 40m
Multiple Airlines
Deal found 2/11$836
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:10 pm
BOS
-
KUN
1 stop12h 35m
Multiple Airlines
Fri 3/206:10 am
KUN
-
BOS
2 stops32h 00m
Multiple Airlines
Deal found 2/11$1,089

Find flight deals from Boston to Kaunas

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Kaunas (KUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 14, 2026.

Round-trip from

$836
(Kiwi.com)
From Boston Logan Intl to Kaunas
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Kaunas 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 2,558,603 searches. Data last updated February 14, 2026.
Use the filters below to find and compare flights from Boston to Kaunas that are best for you.

Fly from

Boston

Fly to

Kaunas

Route

Depart

Return

Price

BostonKaunas

BOS - KUN

BOSKUN

Boston Logan Intl

Sun 3/15

6:10 pm-12:45 pm

1 stop12h 35m

Kaunas

Thu 3/19

6:15 am-9:55 pm

2 stops21h 40m

$847

BostonKaunas

BOS - KUN

BOSKUN

Boston Logan Intl

Sun 3/15

6:10 pm-12:45 pm

1 stop12h 35m

Kaunas

Fri 3/20

6:00 am-8:00 am

2 stops32h 00m

$1,126

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Best time to book a flight from Boston to Kaunas

Have a flexible travel schedule? Discover the best time to fly to Kaunas from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Kaunas

What is the cheapest month to book a flight from Boston to Kaunas?

Currently, March is the cheapest month in which you can book a flight from Boston to Kaunas (average of $232). Flying from Boston to Kaunas in June is currently the most expensive (average of $687). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Boston to Kaunas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Kaunas.

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

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

  • What is the cheapest month to book a flight from Boston to Kaunas?

    Currently, March is the cheapest month in which you can book a flight from Boston to Kaunas (average of $232). Flying from Boston to Kaunas in June is currently the most expensive (average of $687). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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