A vast volcanic crater surrounded by rugged terrain.

Cheap Flights to Ka'u from $69

View $69 flight on Thu, Sep 10, 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Ka'u

  • Alaska Airlines

  • United

  • American Airlines

  • Southwest Airlines

  • Japan Airlines

  • Philippine Airlines

  • Qantas Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

How much is the cheapest flight to Ka'u?

Prices were available within the past 7 days and start at $69 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Alaska Airlines
Southwest Airlines
Alaska Airlines
Alaska Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
American Airlines
United

Trending flights to Ka'u

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines

Book with confidence

Enjoy extra legroom, flight flexibility, and a seamless travel experience.

Travel information

*Flight schedules are subject to change.

*Available to One Key members.

*Flight schedules are subject to change.

*Available to One Key members.

Explore a world of travel with Expedia