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Kaunas

$1,036+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KUN
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheap 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 November 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$8,122
(Air France)
Provider with most accurate pricing for Boston Logan Intl-Kaunas flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Kaunas flights.
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From Boston Logan Intl to Kaunas
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Find 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 November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Thu 11/1310:45 pmBOS - KUN
2 stops31h 15mMultiple Airlines
Thu 11/2711:40 amKUN - BOS
1 stop12h 10mMultiple Airlines
Deal found 11/12$1,036

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 November 13, 2025.
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 3/29

6:55 pm-12:10 am

2 stops22h 15m

Kaunas

Thu 4/2

5:35 am-3:05 pm

2 stops16h 30m

$8,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

  • Most accurate provider: When it comes to deals on Boston-Kaunas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Kaunas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Kaunas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Kaunas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Kaunas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $334). Flying from Boston to Kaunas in June is currently the most expensive (average of $692). 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.

  • How long is the flight from Boston to Kaunas?

    For as low as $8,122, Air France can have you in Kaunas from Boston in 22h 15m. The distance from Boston to Kaunas is about 4078 mi.

  • 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 $334). Flying from Boston to Kaunas in June is currently the most expensive (average of $692). 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.

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