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 Delta ($232), American Airlines ($232), and United Airlines ($264).

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, Delta or American Airlines.

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.

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Find flight deals from Kaua'i to Boston

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	June
Cheapest in	November
Average price	$709

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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Highest demand for flights based on searches. 4% potential increase in price ($35 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in September 2026

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Reviews of airlines servicing Boston

See what other customers who have flown with Delta,United Airlines, andAmerican 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.

Delta

7.8

Good

8,605 reviews

Reviews

1 / 20

6.0

Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Delta

7.8

Good

8,605 reviews

Delta

7.8

Good

8,605 reviews

Reviews

1 / 20

6.0

Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

United Airlines

7.4

Good

10,242 reviews

Delta

7.8

Good

8,605 reviews

Reviews

1 / 20

6.0

Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

American Airlines

7.0

Good

12,099 reviews

Delta

7.8

Good

8,605 reviews

Reviews

1 / 20

6.0

Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

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.
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 Delta ($232), American Airlines ($232), and United Airlines ($264).
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 3 airlines flying from Kaua'i to Boston

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$304	Average$709	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$379	Average$678	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$528	Average$801	FlexibilityNo cancel fee	On-time71%

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Find cheap flights from Kaua'i to Boston with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Kaua'i to Boston

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Boston

See what other customers who have flown with Delta,United Airlines, andAmerican 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

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

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?

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 Kaua'i to Boston

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.

Complete your trip

Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Kaua'i to Boston by cabin class

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

Kaua'i and Boston flights

Browse other Kaua'i and Boston flight options. Last updated on September 28, 2026.

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Top 3 airlines flying from Kaua'i to Boston

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Cheap flights from Kaua'i to Boston (BOS)

Find cheap flights from Kaua'i to Boston with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Kaua'i to Boston

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Boston

See what other customers who have flown with Delta,United Airlines, andAmerican 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

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

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?

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 Kaua'i to Boston

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.

Complete your trip

Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Kaua'i to Boston by cabin class

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

Kaua'i and Boston flights

Browse other Kaua'i and Boston flight options. Last updated on September 28, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 3 airlines flying from Kaua'i to Boston

100% Free

Book with Flexibility

Travel Smart