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

UAUnited Airlines

Round Trip•Economy

KOA

Kona International Airport

Kailua-Kona, United States

IAD

Washington Dulles International Airport

Washington, United States

$645 USD

-32%$439 USD

Verified Nov 2, 2025 at 12:50 PM

December 2025

Today

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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 9th, 2025

6 round-trip options

Returning

Sun, Dec 14, 2025•5 Day Trip

$558 USD

Google Flights

Returning

Mon, Dec 15, 2025•6 Day Trip

$600 USD

Google Flights

Returning

Tue, Dec 16, 2025•7 Day Trip

$618 USD

Google Flights

Returning

Wed, Dec 17, 2025•8 Day Trip

$712 USD

Google Flights

Returning

Thu, Dec 18, 2025•9 Day Trip

$915 USD

Google Flights

Returning

Sat, Dec 20, 2025•11 Day Trip

$1,473 USD

Google Flights