Cheap flights from Costa Mesa

Featured airlines

United
American Airlines
Delta
Alaska Airlines
Air Canada
Qantas Airways
  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

Cheapest flights from Costa Mesa

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

Alaska Airlines
Frontier Airlines
Frontier Airlines
American Airlines
Delta
American Airlines
United
United
American Airlines
Delta
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.

Flights from Costa Mesa: Essential Travel Information

Cheapest flight from Costa Mesa
AU$149 (roundtrip)
Best airlines to fly from Costa Mesa
Alaska Airlines, Frontier Airlines, Delta, American Airlines, United
Cheapest month to fly from Costa Mesa
January
Costa Mesa IATA code
QLA
Costa Mesa Country/State
California
Airline ticket deals from Costa Mesa
AU$149 - AU$366
*Available to Expedia members.