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$252+ Cheap flights from Boston (BOS) to Kaua'i

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIH
Apr 15 — Apr 221
Tue 4/15
Tue 4/22
1 adult, Economy
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Cheap flight deals from Boston to Kaua'i

Keep the following information in mind while searching for Boston to Kaua'i flight deals. Data was last updated April 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$468
(Alaska Airlines)

One-way from

$252
(Hawaiian Airlines)

Popular in

June

Cheapest in

November

Average price

$756
Provider with most accurate pricing for Boston Logan Intl-Lihue flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Lihue flights.
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From Boston Logan Intl to Kaua'i
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One-way flight from Boston Logan Intl to Kaua'i
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Highest demand for flights based on searches. 14% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Boston to Kaua'i

Cheapest flights from Boston to Kaua'i
Explore the most affordable flight options available from Boston to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/64:34 pmBOS - LIH
1 stop27h 46mAlaska Airlines
Mon 5/126:45 amLIH - BOS
1 stop17h 15mAlaska Airlines
Deal found 4/9$468
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/57:25 amBOS - LIH
1 stop17h 19mDelta
Mon 5/129:45 pmLIH - BOS
1 stop12h 15mDelta
Deal found 4/8$473
This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/268:30 amBOS - LIH
2 stops17h 27mUnited Airlines
Fri 5/212:48 pmLIH - BOS
2 stops15h 51mUnited Airlines
Deal found 4/9$644
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:39 pmBOS - LIH
1 stop21h 32mAmerican Airlines
Sat 10/181:41 pmLIH - BOS
1 stop20h 51mAmerican Airlines
Deal found 4/9$713
This Hawaiian Airlines deal was found by Cheapflights users on 4/9. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/118:00 amBOS - LIH
1 stop12h 51mHawaiian Airlines
Thu 8/2110:50 amLIH - BOS
1 stop13h 09mHawaiian Airlines
Deal found 4/9$714
This Southwest deal was found by Cheapflights users on 4/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/195:00 amBOS - LIH
2 stops17h 00mSouthwest
Sat 4/268:30 amLIH - BOS
2 stops17h 35mSouthwest
Deal found 4/8$878

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Kaua'i 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 April 10, 2025.
Use the filters below to find and compare flights from Boston to Kaua'i that are best for you.

Fly from

Boston

Fly to

Kaua'i

Route

Depart

Return

Price

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Tue 5/6

4:34 pm-2:20 pm

1 stop27h 46m

Lihue

Mon 5/12

6:45 am-6:00 am

1 stop17h 15m

$468

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Mon 5/5

7:25 am-6:44 pm

1 stop17h 19m

Lihue

Mon 5/12

9:45 pm-4:00 pm

1 stop12h 15m

$473

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Sat 4/26

8:30 am-7:57 pm

2 stops17h 27m

Lihue

Fri 5/2

12:48 pm-10:39 am

2 stops15h 51m

$644

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Sat 4/19

5:00 am-4:00 pm

2 stops17h 00m

Lihue

Sat 4/26

8:30 am-8:05 am

2 stops17h 35m

$878

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Wed 7/2

6:57 am-2:16 pm

1 stop13h 19m

Lihue

Mon 7/7

9:46 pm-6:54 pm

2 stops15h 08m

$891

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Fri 5/23

8:00 am-8:20 pm

1 stop18h 20m

Lihue

Sat 5/31

7:40 am-6:00 am

1 stop16h 20m

$1,070

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Mon 4/28

8:00 am-5:46 pm

1 stop15h 46m

$252

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Sun 4/27

7:25 am-6:44 pm

1 stop17h 19m

$257

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Sat 5/17

6:00 am-11:45 am

2 stops35h 45m

$334

BostonLihue

BOS - LIH

BOSLIH

Boston Logan Intl

Sun 4/27

6:00 am-9:32 pm

3 stops21h 32m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Best time to book a flight from Boston to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i 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 Kaua'i

What is the cheapest month to book a flight from Boston to Kaua'i?

Currently, January is the cheapest month in which you can book a flight from Boston to Kaua'i (average of $440). Flying from Boston to Kaua'i in June is currently the most expensive (average of $683). 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.

What is the cheapest time of day to fly from BOS to FUS?

Find hourly flight availability from Boston to Kaua'i. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 10, 2025.

When flying from Boston to Kaua'i, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kaua'i ranges from 2.2 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. June is typically the driest time to visit Kaua'i when rainfall is around 2.2 in.

Temperature in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kaua'i, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Kaua'i

Get insights into the airlines that provide service to Kaua'i. 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 Kaua'i. Reviews last updated April 10, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Boston to Kaua'i have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,848 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,906 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,362 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,634 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

  • What airport do you fly from for flights from Boston to Kaua'i?

    If you book a flight to Kaua'i from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston.

  • What are the cheapest airlines to fly from Boston to Kaua'i one-way?

    One-way options have recently been found by users for as low as $252 on Hawaiian Airlines. Other airlines that offer cheap prices include Delta from $257 and Alaska Airlines from $334 one-way.

  • Can I find deals for flights from Boston to Kaua'i that include hotel bookings?

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

  • How can I find direct flights from Boston to Kaua'i?

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

  • Can I find deals for business class flights from Boston to Kaua'i?

    Yes. Cheapflights offers flight deals from Boston to Kaua'i 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 Kaua'i?

    Currently, January is the cheapest month in which you can book a flight from Boston to Kaua'i (average of $440). Flying from Boston to Kaua'i in June is currently the most expensive (average of $683). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Boston to Kaua'i

Discover the top 6 airlines that operate flights from Boston to Kaua'i. 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 2,558,603 searches. Data last updated April 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$303Average$640FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$314Average$550FlexibilityNo cancel feeOn-time62%
DeltaCheapest$352Average$731FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$417Average$742FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$444Average$621FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$448Average$863FlexibilityNo cancel feeOn-time69%

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