Kailua-Kona (KOA) to Washington (IAD) cheap flight deal from $437 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

$609 USD

-28%$437 USD

Verified Sep 20, 2025 at 2:48 PM

October 2025

Today

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29$496 30$496 1$546 2$547 3$541 4$521 5$511 6$486 7$478 8$483 9$537 10$493 11$556 12$639 13$559 14$482 15$477 16$477 17$463 18$559 19$600 20$453 21$453 22$453 23$457 24$459 25$552 26$469 27$457 28$457 29$457 30$457 31$463 1 2

Fair Availability

26% of dates checked are available within 10% of the lowest price

Tuesday, October 14th, 2025

6 round-trip options

Returning

Sun, Oct 19, 2025•5 Day Trip

$537 USD

Google Flights

Returning

Mon, Oct 20, 2025•6 Day Trip

$501 USD

Google Flights

Returning

Tue, Oct 21, 2025•7 Day Trip

$482 USD

Google Flights

Returning

Wed, Oct 22, 2025•8 Day Trip

$482 USD

Google Flights

Returning

Thu, Oct 23, 2025•9 Day Trip

$511 USD

Google Flights

Returning

Sat, Oct 25, 2025•11 Day Trip

$566 USD

Google Flights