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

Airlines like Delta fly from Kaua'i to Boston in about 20h 21m. 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 American Airlines ($232), United Airlines ($264), and Alaska Airlines ($272).

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, American 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.

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Find flight deals from Kaua'i to Boston

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$531 (Delta)
One-way from	$270 (Delta)
Popular in	June
Cheapest in	November
Average price	$680

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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. 9% potential increase in price ($76 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in May 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

7.9

Good

8,423 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Delta

7.9

Good

8,423 reviews

Delta

7.9

Good

8,423 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

United Airlines

7.4

Good

9,751 reviews

Delta

7.9

Good

8,423 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

American Airlines

7.1

Good

11,639 reviews

Delta

7.9

Good

8,423 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 20h 21m. 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 American Airlines ($232), United Airlines ($264), and Alaska Airlines ($272).
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$424	Average$638	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$517	Average$686	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$528	Average$747	FlexibilityNo cancel fee	On-time71%

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Cheap flights from Kaua'i to Boston (BOS)

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Find 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 May 28, 2026.

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Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated May 28, 2026.

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

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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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 May 28, 2026.

Complete your trip

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

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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

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