How long is the flight from Kaua'i to Boston?

Airlines like Delta fly from Kaua'i to Boston in about 12h 15m. The time it takes to get you to your destination can typically vary by up to . The distance between Kaua'i and Boston is about 5124 mi.

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

The cheapest airlines for a one-way flight from Kaua'i to Boston are United Airlines ($236), Alaska Airlines ($242), and Delta ($246).

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

If weather is an important factor for your trip to Boston, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Kaua'i to Boston?

Before booking your flight from Kaua'i to Boston check out the most popular airlines for this route: United Airlines, Alaska Airlines or Delta.

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

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

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

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

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

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

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

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

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

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

$225+ Flights from Kaua'i to Boston

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Cheap flight deals from Kaua'i to Boston

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,212 (Delta)
One-way from	$225 (Kiwi.com)
Popular in	July
Cheapest in	June
Average price	$665

Provider with most accurate pricing for Lihue-Boston Logan Intl flight deals.

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Provider most trusted by Cheapflights users for Lihue-Boston Logan Intl flights.

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From Kaua'i to Boston Logan Intl

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One-way flight from Kaua'i to Boston Logan Intl

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Highest demand for flights based on searches. 6% potential increase in price ($47 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in January 2026

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Find flight deals from Kaua'i to Boston

Cheapest flights from Kaua'i to Boston
Explore the most affordable flight options available from Kaua'i to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

Thu 1/158:30 pm

LIH

BOS

1 stop14h 07m

United Airlines

Mon 1/197:25 am

BOS

LIH

1 stop14h 39m

United Airlines

Deal found 1/13

$908

Wed 5/139:45 pm

LIH

BOS

1 stop12h 15m

Delta

Wed 5/207:05 am

BOS

LIH

1 stop18h 15m

Delta

Deal found 1/14

$1,212

Best flights from Kaua'i to Boston
Discover carefully curated flight deals from Kaua'i to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 15, 2026.

Wed 5/139:45 pm

LIH

BOS

1 stop12h 15m

Delta

Wed 5/207:05 am

BOS

LIH

1 stop18h 15m

Delta

Deal found 1/14

$1,212

Last-minute flights from Kaua'i to Boston
Discover last-minute flight deals from Kaua'i to Boston. Data last updated January 15, 2026 and is based on user searches.

Thu 1/158:30 pm

LIH

BOS

1 stop14h 07m

United Airlines

Mon 1/197:25 am

BOS

LIH

1 stop14h 39m

United Airlines

Deal found 1/13

$908

One-way flights from Kaua'i to Boston
Search for one-way flight options from Kaua'i to Boston. Find affordable one-way fares based on user searches. Data last updated January 15, 2026.

Mon 3/23:09 pm

LIH

BOS

3 stops53h 04m

Multiple Airlines

Deal found 1/15

$225

Sun 2/89:00 pm

LIH

BOS

3 stops45h 57m

Multiple Airlines

Deal found 1/13

$260

Sat 2/71:55 pm

LIH

BOS

1 stop12h 26m

United Airlines

Deal found 1/13

$287

Wed 3/182:07 pm

LIH

BOS

2 stops40h 46m

Multiple Airlines

Deal found 1/15

$289

Sat 2/72:30 pm

LIH

BOS

3 stops29h 44m

Multiple Airlines

Deal found 1/13

$312

Wed 4/18:19 pm

LIH

BOS

1 stop13h 24m

Delta

Deal found 1/14

$317

Wed 4/19:00 pm

LIH

BOS

1 stop17h 39m

American Airlines

Deal found 1/15

$318

Sat 2/79:20 pm

LIH

BOS

1 stop13h 49m

Delta

Deal found 1/15

$322

Fly from

Fly to

Route

Depart

Return

Price

LihueBoston

LIH - BOS

LIHBOS

Lihue

Wed 5/13

9:45 pm-4:00 pm

1 stop12h 15m

Boston Logan Intl

Wed 5/20

7:05 am-7:20 pm

1 stop18h 15m

$1,212

LihueBoston

LIH - BOS

LIHBOS

Lihue

Mon 3/2

3:09 pm-1:13 am

3 stops53h 04m

$225

LihueBoston

LIH - BOS

LIHBOS

Lihue

Sun 2/8

9:00 pm-11:57 pm

3 stops45h 57m

$260

LihueBoston

LIH - BOS

LIHBOS

Lihue

Sun 2/8

11:00 pm-4:21 pm

1 stop12h 21m

$287

LihueBoston

LIH - BOS

LIHBOS

Lihue

Wed 3/18

1:15 pm-7:11 am

1 stop11h 56m

$287

LihueBoston

LIH - BOS

LIHBOS

Lihue

Sat 2/7

11:00 pm-4:21 pm

1 stop12h 21m

$287

LihueBoston

LIH - BOS

LIHBOS

Lihue

Sun 2/8

8:30 pm-2:02 pm

1 stop12h 32m

$287

LihueBoston

LIH - BOS

LIHBOS

Lihue

Sat 2/7

1:55 pm-12:46 pm

2 stops17h 51m

$293

LihueBoston

LIH - BOS

LIHBOS

Lihue

Fri 2/27

2:25 pm-10:36 am

2 stops15h 11m

$293

LihueBoston

LIH - BOS

LIHBOS

Lihue

Wed 3/18

2:07 pm-12:53 pm

3 stops40h 46m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

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

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Boston

See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Kaua'i to Boston have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

11,720 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Alaska Airlines

8.0

Very good

11,720 reviews

Alaska Airlines

8.0

Very good

11,720 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Delta

7.9

Good

8,049 reviews

Alaska Airlines

8.0

Very good

11,720 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Hawaiian Airlines

7.8

Good

2,827 reviews

Alaska Airlines

8.0

Very good

11,720 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

United Airlines

7.4

Good

9,164 reviews

Alaska Airlines

8.0

Very good

11,720 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

What airport do you fly into for flights to Boston from Kaua'i?
If you book a flight to Boston from Kaua'i, you will be flying to Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston.
How long is the flight from Kaua'i to Boston?
Airlines like Delta fly from Kaua'i to Boston in about 12h 15m. The time it takes to get you to your destination can typically vary by up to . The distance between Kaua'i and Boston is about 5124 mi.
What are the cheapest airlines to fly from Kaua'i to Boston one-way?
The cheapest airlines for a one-way flight from Kaua'i to Boston are United Airlines ($236), Alaska Airlines ($242), and Delta ($246).
Can I find deals for flights from Kaua'i to Boston that include hotel bookings?
Yes. In addition to deals on Kaua'i to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kaua'i to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kaua'i to Boston.
Can I find deals for business class flights from Kaua'i to Boston?
Yes. Cheapflights offers flight deals from Kaua'i to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 4 airlines flying from Kaua'i to Boston

Airline	Cheapest	Average	Flexibility	On-time
Hawaiian Airlines	Cheapest$254	Average$692	FlexibilityNo cancel fee	On-time85%
United Airlines	Cheapest$302	Average$605	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$351	Average$590	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$488	Average$662	FlexibilityNo cancel fee	On-time75%

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$225+ Cheap flights from Kaua'i to Boston (BOS)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kaua'i to Boston with Cheapflights

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Cheap flight deals from Kaua'i to Boston

Keep the following information in mind while searching for Kaua'i to Boston flight deals. Data was last updated January 15, 2026.

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Kaua'i to Boston

Cheapest flights from Kaua'i to BostonExplore the most affordable flight options available from Kaua'i to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

Explore the most affordable flight options available from Kaua'i to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kaua'i to Boston that are best for you.

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

Have a flexible travel schedule? Discover the best time to fly to Boston from Kaua'i with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Kaua'i to Boston

Reviews of airlines servicing Boston

See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Kaua'i to Boston have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Kaua'i to Boston. 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 into for flights to Boston from Kaua'i?

How long is the flight from Kaua'i to Boston?

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

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

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

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

Traveling to a place near Boston?

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Alternative routes for Kaua'i to Boston

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Top 4 airlines flying from Kaua'i to Boston

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Cheapest flights from Kaua'i to Boston
Explore the most affordable flight options available from Kaua'i to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.