Security lines at KOA are rarely a concern. Arrive early for the slower agriculture inspection for mainland flights.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $218 (Delta) |
One-way from | $119 (Southwest) |
Popular in | December |
Cheapest in | January |
Average price | $727 |
Good round-trip deal | $337 or less |
Good one-way deal | $249 or less |
Fly from
Fly to
Route
Depart
Return
Price
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Thu 1/22
8:45 pm-4:35 am
Nonstop5h 50m
Seattle/Tacoma Intl
Mon 1/26
2:25 pm-6:47 pm
Nonstop6h 22m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Thu 1/29
11:39 am-9:39 pm
1 stop8h 00m
Seattle/Tacoma Intl
Wed 2/4
5:09 pm-9:30 pm
Nonstop6h 21m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Thu 2/12
8:59 pm-4:49 am
Nonstop5h 50m
Seattle/Tacoma Intl
Mon 2/16
7:25 am-6:30 pm
1 stop13h 05m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Mon 1/12
8:45 pm-4:35 am
Nonstop5h 50m
Seattle/Tacoma Intl
Mon 2/16
7:25 am-6:30 pm
1 stop13h 05m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Thu 1/15
9:10 pm-5:04 am
Nonstop5h 54m
Seattle/Tacoma Intl
Mon 1/19
10:14 am-4:10 pm
1 stop7h 56m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Thu 1/15
5:57 pm-5:24 am
1 stop9h 27m
Seattle/Tacoma Intl
Mon 1/19
10:14 am-4:10 pm
1 stop7h 56m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Tue 5/5
9:45 pm-6:45 am
Nonstop6h 00m
Seattle/Tacoma Intl
Mon 5/11
2:20 pm-5:41 pm
Nonstop6h 21m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Wed 3/25
8:55 pm-5:46 am
Nonstop5h 51m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Tue 1/27
9:10 pm-5:04 am
Nonstop5h 54m
Kailua-KonaSeattle
KOA - SEA
KOASEA
Kona Intl
Tue 2/10
9:55 pm-5:44 am
Nonstop5h 49m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Kailua-Kona to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, April is the cheapest month in which you can book a flight from Kailua-Kona to Seattle (average of $239). Flying from Kailua-Kona to Seattle in June is currently the most expensive (average of $484). 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.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 38% on flights from Kailua-Kona to Seattle by exploring options for tickets in the evening.
Travelers seeking maximum savings on their Kailua-Kona to Seattle flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Dec 2025
SJC - SEA
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Dec 2025
SJC - SEA
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Dec 2025
SJC - SEA
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Dec 2025
SJC - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$257 | Average$474 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$316 | Average$558 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$357 | Average$557 | FlexibilityNo cancel fee | On-time85% |