Kailua-Kona (KOA) to St. Louis (STL) flight deal from $455 USD in economy class – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Kona International Airport

Kailua-Kona, United States

Lambert-Saint Louis International Airport

St. Louis, United States

$696 USD

-35%$455 USD

Verified Mar 31, 2026 at 5:33 PM

April 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30 31$534 1$534 2$534 3$604 4$604 5$674 6$589 7$534 8$540 9$596 10$775 11$761 12$711 13$589 14$514 15$514 16$514 17$559 18$610 19$611 20$514 21$494 22$494 23$500 24$500 25$610 26$614 27$540 28$475 29$475 30$512 1 2 3

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Wednesday, April 15th, 2026

4 round-trip options

Returning

Mon, Apr 20, 2026•5 Day Trip

$534 USD

Returning

Tue, Apr 21, 2026•6 Day Trip

$514 USD

Returning

Wed, Apr 22, 2026•7 Day Trip

$514 USD

Returning

Wed, Apr 29, 2026•14 Day Trip

$514 USD