$264+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LIH — BOS
Mar 16 — Mar 231
1 adult, Economy
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Find cheap flights from Kaua'i to Boston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kaua'i to Boston
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Best
Last-minute
One-way
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 February 14, 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 February 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:19 pm
LIH
- BOS
1 stop26h 35m
Alaska Airlines
Mon 3/95:44 pm
BOS
- LIH
1 stop24h 03m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 2/14. 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.
Tue 5/129:40 pm
LIH
- BOS
2 stops19h 11m
Delta
Wed 5/205:55 am
BOS
- LIH
2 stops17h 45m
Delta
Deal found 2/14![Delta logo]()
$554
This American Airlines deal was found by Cheapflights users on 2/11. 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 2/2610:00 pm
LIH
- BOS
2 stops15h 09m
American Airlines
Mon 3/27:15 am
BOS
- LIH
1 stop14h 59m
American Airlines
Deal found 2/11![American Airlines logo]()
$564
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Thu 3/510:27 am
LIH
- BOS
2 stops15h 27m
Multiple Airlines
Mon 3/95:44 pm
BOS
- LIH
1 stop24h 03m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 2/2611:59 pm
LIH
- BOS
1 stop14h 57m
United Airlines
Mon 3/21:50 pm
BOS
- LIH
1 stop13h 54m
United Airlines
Deal found 2/11![United Airlines logo]()
$568
This Delta deal was found by Cheapflights users on 2/13. 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.
Wed 5/139:40 pm
LIH
- BOS
2 stops19h 11m
Delta
Wed 5/205:55 am
BOS
- LIH
2 stops17h 45m
Delta
Deal found 2/13![Delta logo]()
$574
Best flights from Kaua'i to BostonDiscover 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 February 14, 2026.
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 February 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:19 pm
LIH
- BOS
1 stop26h 35m
Alaska Airlines
Mon 3/95:44 pm
BOS
- LIH
1 stop24h 03m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 2/14. 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.
Tue 5/129:40 pm
LIH
- BOS
2 stops19h 11m
Delta
Wed 5/207:45 am
BOS
- LIH
1 stop17h 21m
Delta
Deal found 2/14![Delta logo]()
$549
This American Airlines deal was found by Cheapflights users on 2/11. 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 2/2610:00 pm
LIH
- BOS
2 stops15h 09m
American Airlines
Mon 3/27:15 am
BOS
- LIH
1 stop14h 59m
American Airlines
Deal found 2/11![American Airlines logo]()
$564
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Thu 3/510:27 am
LIH
- BOS
2 stops15h 27m
Multiple Airlines
Mon 3/95:44 pm
BOS
- LIH
1 stop24h 03m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 2/2611:59 pm
LIH
- BOS
1 stop14h 57m
United Airlines
Mon 3/21:50 pm
BOS
- LIH
1 stop13h 54m
United Airlines
Deal found 2/11![United Airlines logo]()
$568
This Delta deal was found by Cheapflights users on 2/13. 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.
Wed 5/139:40 pm
LIH
- BOS
2 stops19h 11m
Delta
Wed 5/207:45 am
BOS
- LIH
1 stop17h 21m
Delta
Deal found 2/13![Delta logo]()
$569
Last-minute flights from Kaua'i to BostonDiscover last-minute flight deals from Kaua'i to Boston. Data last updated February 14, 2026 and is based on user searches.
Discover last-minute flight deals from Kaua'i to Boston. Data last updated February 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/11. 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 2/2610:00 pm
LIH
- BOS
2 stops15h 09m
American Airlines
Mon 3/27:15 am
BOS
- LIH
1 stop14h 59m
American Airlines
Deal found 2/11![American Airlines logo]()
$564
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Thu 2/2611:59 pm
LIH
- BOS
1 stop14h 57m
United Airlines
Mon 3/21:50 pm
BOS
- LIH
1 stop13h 54m
United Airlines
Deal found 2/11![United Airlines logo]()
$568
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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 3/311:19 pm
LIH
- BOS
1 stop26h 35m
Multiple Airlines
Thu 3/59:02 am
BOS
- LIH
2 stops18h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$671
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:19 pm
LIH
- BOS
1 stop26h 35m
Alaska Airlines
Mon 3/95:44 pm
BOS
- LIH
1 stop24h 03m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$549
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Thu 3/510:27 am
LIH
- BOS
2 stops15h 27m
Multiple Airlines
Mon 3/95:44 pm
BOS
- LIH
1 stop24h 03m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$567
One-way flights from Kaua'i to BostonSearch for one-way flight options from Kaua'i to Boston. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
Search for one-way flight options from Kaua'i to Boston. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
This American Airlines deal was found by Cheapflights users on 2/14. 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.
Tue 5/122:12 pm
LIH
- BOS
1 stop11h 52m
American Airlines
Deal found 2/14![American Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 2/14. 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.
Tue 5/129:40 pm
LIH
- BOS
2 stops19h 11m
Delta
Deal found 2/14![Delta logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 4/74:00 pm
LIH
- BOS
3 stops41h 28m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 2/11. 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.
Sun 3/89:00 pm
LIH
- BOS
1 stop13h 30m
American Airlines
Deal found 2/11![American Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Tue 5/121:16 pm
LIH
- BOS
2 stops14h 09m
United Airlines
Deal found 2/14![United Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 2/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:16 pm
LIH
- BOS
1 stop13h 07m
United Airlines
Deal found 2/12![United Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 2/14. 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.
Tue 7/2810:35 pm
LIH
- BOS
1 stop18h 54m
American Airlines
Deal found 2/14![American Airlines logo]()
$322
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2710:30 pm
LIH
- BOS
2 stops15h 50m
American Airlines
Deal found 2/12![American Airlines logo]()
$328
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 February 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $549 (Alaska Airlines) |
One-way from | $264 (American Airlines) |
Popular in | July |
Cheapest in | June |
Cheapflights Fare Finder
Customize your flight search to find flights from Kaua'i to Boston 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 February 14, 2026.
Use the filters below to find and compare flights from Kaua'i to Boston that are best for you.
Fly from
Kaua'i
Fly to
Boston
Route
Depart
Return
Price
LihueBoston
LIH - BOS
LIHBOS
Lihue
Thu 3/5
11:19 pm-6:54 am
1 stop26h 35m
Boston Logan Intl
Mon 3/9
5:44 pm-11:47 am
1 stop24h 03m
$549
LihueBoston
LIH - BOS
LIHBOS
Lihue
Tue 5/12
9:40 pm-10:51 pm
2 stops19h 11m
Boston Logan Intl
Wed 5/20
7:45 am-7:06 pm
1 stop17h 21m
$549
LihueBoston
LIH - BOS
LIHBOS
Lihue
Thu 2/26
10:00 pm-6:09 pm
2 stops15h 09m
Boston Logan Intl
Mon 3/2
7:15 am-5:14 pm
1 stop14h 59m
$564
LihueBoston
LIH - BOS
LIHBOS
Lihue
Thu 3/5
10:27 am-6:54 am
2 stops15h 27m
Boston Logan Intl
Mon 3/9
5:44 pm-11:47 am
1 stop24h 03m
$567
LihueBoston
LIH - BOS
LIHBOS
Lihue
Thu 2/26
11:59 pm-7:56 pm
1 stop14h 57m
Boston Logan Intl
Mon 3/2
1:50 pm-10:44 pm
1 stop13h 54m
$568
LihueBoston
LIH - BOS
LIHBOS
Lihue
Wed 5/13
9:40 pm-10:51 pm
2 stops19h 11m
Boston Logan Intl
Wed 5/20
7:45 am-7:06 pm
1 stop17h 21m
$569
LihueBoston
LIH - BOS
LIHBOS
Lihue
Tue 5/12
2:12 pm-8:04 am
1 stop11h 52m
$264
LihueBoston
LIH - BOS
LIHBOS
Lihue
Tue 5/12
9:40 pm-10:51 pm
2 stops19h 11m
$270
LihueBoston
LIH - BOS
LIHBOS
Lihue
Tue 4/7
4:00 pm-3:28 pm
3 stops41h 28m
$282
LihueBoston
LIH - BOS
LIHBOS
Lihue
Sun 3/8
9:00 pm-4:30 pm
1 stop13h 30m
$287
Showing 1-10 of 15 results
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.
LIH-BOS
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
zzFUS-BOS
LIH-BOS
No data available for this route at this time. Please check back soon.
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 February 14, 2026.
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.
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsMedford
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Hampton Beach
Watertown
Seekonk
Brockton
Concord
Seabrook
Cranston
Lincoln
Warwick
Smithfield
Peabody
Quincy
York Beach
Londonderry
Swansea
Old Orchard Beach
Waltham
Lowell
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Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 14, 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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Kaua'i and Boston flights
Browse other Kaua'i and Boston flight options. Last updated on February 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Kaua'i to Boston
Discover the top 4 airlines that operate flights from Kaua'i to Boston. 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 February 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$692 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$302 | Average$605 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$351 | Average$635 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$700 | FlexibilityNo cancel fee | On-time75% |