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Kailua

$238+ Cheap flights from Seattle (SEA) to Kailua, HI

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HNL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kailua are usually found in January or September, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Seattle to Kailua

Keep the following information in mind while searching for Seattle to Kailua flight deals. Data was last updated July 31, 2025.

Round-trip from

$375
(United Airlines)

One-way from

$238
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$614
From Seattle/Tacoma Intl to Kailua
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One-way flight from Seattle/Tacoma Intl to Kailua
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Kailua

Cheapest flights from Seattle to Kailua
Explore the most affordable flight options available from Seattle to Kailua. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:05 pmSEA - HNL
1 stop8h 28mUnited Airlines
Mon 9/2210:25 pmHNL - SEA
1 stop10h 42mUnited Airlines
Deal found 7/29$375
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/255:15 amSEA - HNL
1 stop12h 05mSouthwest
Fri 8/2911:35 amHNL - SEA
1 stop8h 30mSouthwest
Deal found 7/29$376
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 10/226:30 amSEA - HNL
1 stop10h 20mAmerican Airlines
Sat 11/111:00 pmHNL - SEA
1 stop13h 08mAmerican Airlines
Deal found 7/31$378
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:35 pmSEA - HNL
Nonstop6h 01mAlaska Airlines
Wed 8/275:48 pmHNL - SEA
1 stop10h 27mAlaska Airlines
Deal found 7/31$387
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:35 pmSEA - HNL
Nonstop6h 01mHawaiian Airlines
Wed 8/279:20 pmHNL - SEA
Nonstop5h 40mHawaiian Airlines
Deal found 7/31$405
This Delta deal was found by Cheapflights users on 7/31. 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 9/27:10 amSEA - HNL
1 stop16h 18mDelta
Tue 9/2310:33 pmHNL - SEA
Nonstop5h 57mDelta
Deal found 7/31$438

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Kailua 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 31, 2025.
Use the filters below to find and compare flights from Seattle to Kailua that are best for you.

Fly from

Seattle

Fly to

Kailua

Route

Depart

Return

Price

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Fri 9/19

1:05 pm-6:33 pm

1 stop8h 28m

Honolulu

Mon 9/22

10:25 pm-12:07 pm

1 stop10h 42m

$375

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Mon 8/25

5:15 am-2:20 pm

1 stop12h 05m

Honolulu

Fri 8/29

11:35 am-11:05 pm

1 stop8h 30m

$376

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Wed 10/22

6:30 am-1:50 pm

1 stop10h 20m

Honolulu

Sat 11/1

11:00 pm-2:08 pm

1 stop13h 08m

$378

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Thu 8/21

8:35 pm-11:36 pm

Nonstop6h 01m

Honolulu

Wed 8/27

5:48 pm-7:15 am

1 stop10h 27m

$387

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Thu 8/21

8:35 pm-11:36 pm

Nonstop6h 01m

Honolulu

Wed 8/27

9:20 pm-6:00 am

Nonstop5h 40m

$405

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Tue 9/2

7:10 am-8:28 pm

1 stop16h 18m

Honolulu

Mon 9/22

10:33 pm-7:30 am

Nonstop5h 57m

$438

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Sat 9/27

10:08 am-8:31 pm

1 stop13h 23m

$238

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Fri 8/22

1:05 pm-6:33 pm

1 stop8h 28m

$239

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Thu 8/21

12:40 pm-6:05 pm

1 stop8h 25m

$243

SeattleHonolulu

SEA - HNL

SEAHNL

Seattle/Tacoma Intl

Fri 8/15

6:00 am-4:05 pm

1 stop13h 05m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 13 results
1
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Best time to book a flight from Seattle to Kailua

Have a flexible travel schedule? Discover the best time to fly to Kailua from Seattle 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 Seattle to Kailua

How far ahead should I book a flight from Seattle to Kailua?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Kailua. Price data was last updated on July 25, 2025.

The price you pay for your flight from Seattle to Kailua may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Kailua?

Currently, November is the cheapest month in which you can book a flight from Seattle to Kailua (average of $469). Flying from Seattle to Kailua in June is currently the most expensive (average of $687). 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 SEA to K4I?

Find hourly flight availability from Seattle to Kailua. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

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

What is the cheapest day to fly from Seattle to Kailua?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Kailua. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Seattle to Kailua flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Kailua

Explore weekly flight availability from Seattle to Kailua. 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 31, 2025.

The most flights from SEA to K4I are scheduled on a Thursday (30 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 on average).

Reviews of airlines servicing Kailua

Get insights into the airlines that provide service to Kailua. 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 Kailua. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Seattle to Kailua. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

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.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

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.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

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.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

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.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

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 Seattle to Kailua. 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 from for flights from Seattle to Kailua?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Kailua. 6 airlines have flights from Seattle/Tacoma Intl to Kailua on a regular basis. Booking flights from Seattle/Tacoma Intl to Kailua should not be difficult; the airport handles an average of 23 outbound flights to Kailua per day.

  • How popular is this Seattle to Kailua flight route?

    Flights from Seattle/Tacoma Intl to Kailua have been viewed 112 times in the past calendar month.

  • What are the cheapest airlines to fly from Seattle to Kailua one-way?

    The cheapest airlines for a one-way flight from Seattle to Kailua are Alaska Airlines ($238), United Airlines ($239), and Hawaiian Airlines ($243).

  • What are the most reliable airlines from Seattle to Kailua?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Kailua on time: Scandinavian Airlines (88%), Delta (86%), Virgin Atlantic (86%).

  • What are the cheapest flights from Seattle to Kailua?

    Looking at all options, your cheapest flight can be booked for $209. While the most popular route (Seattle/Tacoma Intl - Honolulu) can be booked for $307 on average our data indicates $1,305 when flying from Seattle to Kailua.

  • Can I find deals for flights from Seattle to Kailua that include hotel bookings?

    Yes. In addition to deals on Seattle to Kailua flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kailua?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kailua.

  • Can I find deals for business class flights from Seattle to Kailua?

    Yes. Cheapflights offers flight deals from Seattle to Kailua 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 Seattle to Kailua?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Kailua (average of $469). Flying from Seattle to Kailua in June is currently the most expensive (average of $687). 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 6 airlines flying from Seattle to Kailua

Discover the top 6 airlines that operate flights from Seattle to Kailua. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$118Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$235Average$408FlexibilityNo cancel feeOn-time69%
DeltaCheapest$273Average$506FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$277Average$512FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$281Average$521FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$318Average$530FlexibilityNo cancel feeOn-time75%

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