Kailua-Kona (KOA) to Washington (IAD) flight deal from $439 USD in economy class – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Kona International Airport

Kailua-Kona, United States

Washington Dulles International Airport

Washington, United States

$645 USD

-32%$439 USD

Verified Nov 2, 2025 at 12:50 PM

December 2025

Mon

Tue

Wed

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Sat

Sun

1$617 2$581 3$439 4$439 5$464 6$505 7$545 8$520 9$558 10$563 11$618 12$737 13$841 14$692 15$667 16$667 17$667 18$667 19$798 20$606 21$552 22$462 23$461 24$462 25$464 26$489 27$706 28$546 29$648 30$643 31$648 1 2 3 4

Limited Availability

13% of dates checked are available within 10% of the lowest price

Tuesday, December 30th, 2025

5 round-trip options

Returning

Sun, Jan 4, 2026•5 Day Trip

$643 USD

Returning

Mon, Jan 5, 2026•6 Day Trip

$643 USD

Returning

Tue, Jan 6, 2026•7 Day Trip

$645 USD

Returning

Wed, Jan 7, 2026•8 Day Trip

$645 USD

Returning

Thu, Jan 8, 2026•9 Day Trip

$643 USD