Kaua'i

$54+ Cheap flights from O'ahu 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — LIH
Aug 4 — Aug 111
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Cheap flight deals from O'ahu to Kaua'i

Keep the following information in mind while searching for O'ahu to Kaua'i flight deals. Data was last updated July 30, 2025.

Round-trip from

$108
(Southwest)

One-way from

$51
(Kiwi.com)

Popular in

March

Cheapest in

May

Average price

$155

Good round-trip deal

$143 or less

Good one-way deal

$80 or less
From O'ahu to Kaua'i
One-way flight from O'ahu to Kaua'i
Highest demand for flights based on searches. 2% potential increase in price ($4 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from O'ahu to Kaua'i.
Price to beat on a one-way flight from O'ahu to Kaua'i.

Find flight deals from O'ahu to Kaua'i

Cheapest flights from O'ahu to Kaua'i
Explore the most affordable flight options available from O'ahu to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Southwest deal was found by Cheapflights users on 7/28. 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.
Tue 9/98:00 amHNL - LIH
1 stop6h 05mSouthwest
Tue 9/161:45 pmLIH - HNL
1 stop4h 45mSouthwest
Deal found 7/28$108
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 10/87:50 pmHNL - LIH
Nonstop0h 41mAlaska Airlines
Thu 10/96:47 amLIH - HNL
Nonstop0h 38mAlaska Airlines
Deal found 7/29$113
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Sat 9/136:45 pmHNL - LIH
Nonstop0h 42mHawaiian Airlines
Sat 9/202:55 pmLIH - HNL
Nonstop0h 38mHawaiian Airlines
Deal found 7/30$116
This lastminute.com deal was found by Cheapflights users on 7/30. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:35 amHNL - LIH
1 stop3h 43mMultiple Airlines
Sat 9/207:55 pmLIH - HNL
Nonstop0h 36mMultiple Airlines
Deal found 7/30$192

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'ahu 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 July 30, 2025.
Use the filters below to find and compare flights from O'ahu to Kaua'i that are best for you.

Fly from

O'ahu

Fly to

Kaua'i

Route

Depart

Return

Price

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Tue 9/9

8:00 am-2:05 pm

1 stop6h 05m

Lihue

Tue 9/16

1:45 pm-6:30 pm

1 stop4h 45m

$108

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Wed 10/8

7:50 pm-8:31 pm

Nonstop0h 41m

Lihue

Thu 10/9

6:47 am-7:25 am

Nonstop0h 38m

$113

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Sat 9/13

6:45 pm-7:27 pm

Nonstop0h 42m

Lihue

Sat 9/20

2:55 pm-3:33 pm

Nonstop0h 38m

$116

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Sat 9/13

7:35 am-11:18 am

1 stop3h 43m

Lihue

Sat 9/20

7:55 pm-8:31 pm

Nonstop0h 36m

$192

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Tue 10/28

10:00 am-2:10 pm

1 stop4h 10m

$54

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Wed 8/13

5:18 pm-6:00 pm

Nonstop0h 42m

$55

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Wed 9/17

9:30 pm-10:12 pm

Nonstop0h 42m

$58

HonoluluLihue

HNL - LIH

HNLLIH

Honolulu

Tue 10/28

8:07 am-1:43 pm

2 stops5h 36m

$107

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from O'ahu to Kaua'i

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

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

Currently, January is the cheapest month in which you can book a flight from O'ahu to Kaua'i (average of $440). Flying from O'ahu to Kaua'i in June is currently the most expensive (average of $689). 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 FUW to FUS?

Find hourly flight availability from O'ahu 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 July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from O'ahu to Kaua'i as you normally would.

Weekly flight availability from O'ahu to Kaua'i

Explore weekly flight availability from O'ahu to Kaua'i. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 30, 2025.

The most flights from zzFUW to zzFUS are scheduled on a Monday (86 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (43 on average).

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 July 30, 2025.
Read through reviews of airlines operating flights from O'ahu to Kaua'i, such as Alaska Airlines, Southwest, and Hawaiian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from O'ahu 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 alternative mode of transport can I use to travel sustainably from O’ahu to Kaua’i?

    The use of flights to get from O’ahu to Kaua’i is a sustainable option. This is so because many passengers can be transported over the approximate 108 mi distance. In addition, aircraft use less fuel for the flight from O’ahu to Kaua’i, which is majorly over the Pacific. There are no passenger ferry services offering direct transport from O’ahu to Kaua’i. Therefore, flights are the only sustainable mode of transport if you need to travel from the origin to the destination.

  • What traveler practices can I use to reduce my carbon footprint for my journey from O’ahu to Kaua’i?

    If you want to promote sustainability on your flight from O’ahu to Kaua’i, think about carrying light luggage. A plane’s fuel consumption is directly proportional to its weight. This implies that the heavier the plane, the more fuel is consumed during the journey. Therefore, when you pack light for your O’ahu to Kaua’i journey, you reduce the fuel consumed as well as the amount of carbon gases emitted into the atmosphere. This promotes the sustainability of the environment.

  • What information is critical in identifying a sustainable airport for my O’ahu to Kaua’i trip?

    If you are looking forward to traveling from O’ahu to Kaua’i, you can consider looking out for the IATA certificate when identifying a sustainable airport. The International Air Transport Association has rolled out the environmental assessment of airports as well as ground service providers. This goes a long way in ensuring airports optimize their operations to become environmentally friendly and sustainable in the long run. Therefore, if you need to board a flight from a sustainable airport from O’ahu to Kaua’i, look for the IATA certificate by researching online.

  • What airports serve Oahu to Kauai flights?

    Travelers who are going to Kauai from Oahu are will typically leave out of Danial K. Inouye International Airport, which is located in Honolulu. This airport is one of the busiest in the United States with more than 21 million passengers a year. This airport is a hub for several airlines including Transair, Hawaiian Airlines, and Asia Pacific Airlines. The airport most will be flying into is Lihue Airport, which is not a hub for any carriers. It features an outdoor check-in and is mostly open-air. This airport has routes to Kona and Kahului, as well as Honolulu.

  • Which airlines fly directly from Oahu to Kauai?

    More than a dozen flights go directly from Oahu to Kauai every day from Honolulu. These are all flights offered by Hawaiian Airlines and they are available throughout the day. Hawaiian Airlines is the largest airline for the state of Hawaii and has hubs in both Honolulu and Kahului. This is the 10th largest commercial airline in the United States. Unlike some direct, nonstop flights, the price of these flights is typically much more inexpensive than flights with stopover locations. The flights take around 0h 35m to reach the destination.

  • What are the stopover options between Oahu to Kauai?

    There are two major airlines offering nonstop, direct flights between Kauai and Oahu. These are Hawaiian Airlines and Alaska Airlines. The average duration of stopover flights is 1h 56m, but this can vary based on the number of stops, the airline you choose, the time of day, and other factors. The flights with one stop may make it in Maui Kahului (OGG) or Kona (KOA). Some also stop in Seattle / Tacoma International Airport and are much longer flights than the average. Flights with more than one stop typically stop in Maui Kahului and another location.

  • Do I need a passport or visa to fly from Oahu to Kauai?

    There is no need to have a passport or a visa to travel to Kauai from Oahu. Passengers simply need a form of identification to take a flight between these two locations.

  • How popular is this O'ahu to Kaua'i flight route?

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

    To fly one-way, consider booking your trip with Hawaiian Airlines, which is currently one of the cheapest options available, starting at $51. Southwest flights start at $54 while deals on Alaska Airlines start at $60 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from O'ahu to Kaua'i (average of $440). Flying from O'ahu to Kaua'i in June is currently the most expensive (average of $689). 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

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Top 3 airlines flying from O'ahu to Kaua'i

Discover the top 3 airlines that operate flights from O'ahu 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$109Average$159FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$109Average$158FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$115Average$160FlexibilityNo cancel feeOn-time75%

Helpful tips for your next trip to Kaua'i

Get useful tips and recommendations to enhance your travel experience on your next trip to Kaua'i. Learn about must-visit attractions, local customs, transportation options, weather conditions, and other valuable tips to make your trip more enjoyable and hassle-free.
  • Hawaiian Airlines is one of the respected airlines that provides transport services from O’ahu to Kaua’i. To promote sustainability, the airline has replaced half of the single-use plastics during its flights with biodegradable options.
  • O’ahu is committed to being a sustainable island enacting laws to protect the environment. For example, the region requires the departure airport to carry out sustainable waste management practices, including recycling plastics.
  • Daniel K. Inouye International Airport (HNL) is the departure airport where you will board your flight to Kaua’i. The airport has an established waste management plan that recycles and reuses non-biodegradable waste, such as plastic cups and plates.

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