Kailua-Kona (KOA) to Philadelphia (PHL) flight deal from $514 USD in economy class

UAUnited Airlines

Round Trip•Economy

KOA

Kona International Airport

Kailua-Kona, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$756 USD

-32%$514 USD

Verified Nov 25, 2025 at 7:23 PM

December 2025

Today

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1$719 2$657 3$657 4$657 5$754 6$710 7$710 8$608 9$608 10$608 11$608 12$868 13$1,115 14$1,110 15$1,013 16$969 17$969 18$1,007 19$899 20$788 21$664 22$604 23$559 24$559 25$559 26$645 27$677 28$594 29$691 30$684 31$709 1 2 3 4

Fair Availability

25% 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

$750 USD

Google Flights

Returning

Mon, Dec 15, 2025•6 Day Trip

$657 USD

Google Flights

Returning

Tue, Dec 16, 2025•7 Day Trip

$608 USD

Google Flights

Returning

Wed, Dec 17, 2025•8 Day Trip

$850 USD

Google Flights

Returning

Thu, Dec 18, 2025•9 Day Trip

$1,133 USD

Google Flights

Returning

Sat, Dec 20, 2025•11 Day Trip

$1,511 USD

Google Flights