Cheap flights from Costa Mesa starting at RM373

View RM373 flight on Sat, 11 Oct 2025Opens in a new window

Popular airlines from Costa Mesa

  • United

    United

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

  • Frontier Airlines

    Frontier Airlines

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

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

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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.

Delta
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM1,868 Return, found 1 day ago
RM1,868
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM1,868 found 1 day ago
American Airlines
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM1,869 Return, found 1 day ago
RM1,869
Return
found 1 day ago
Select American Airlines flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM1,869 found 1 day ago
American Airlines
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM1,893 Return, found 1 day ago
RM1,893
Return
found 1 day ago
Select American Airlines flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM1,893 found 1 day ago
American Airlines
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM1,964 Return, found 1 day ago
RM1,964
Return
found 1 day ago
Select American Airlines flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM1,964 found 1 day ago
Delta
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM1,989 Return, found 1 day ago
RM1,989
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM1,989 found 1 day ago
American Airlines
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM2,069 Return, found 1 day ago
RM2,069
Return
found 1 day ago
Select American Airlines flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM2,069 found 1 day ago
Delta
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM2,094 Return, found 1 day ago
RM2,094
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM2,094 found 1 day ago
Delta
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM2,164 Return, found 1 day ago
RM2,164
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM2,164 found 1 day ago
Delta
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM2,319 Return, found 1 day ago
RM2,319
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM2,319 found 1 day ago
United
Sun, 4 Jan - Thu, 8 Jan
ONT
Ontario
LAS
Las Vegas
RM2,428 Return, found 1 day ago
RM2,428
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Ontario to Las Vegas, returning Thu, 8 Jan, priced at RM2,428 found 1 day ago

Travel information

Travel information

Flights from Costa Mesa: Essential Travel Information

Cheapest flight from Costa Mesa
RM1,868 (roundtrip)
Best airlines to fly from Costa Mesa
United, Delta, American Airlines
Cheapest month to fly from Costa Mesa
January
Costa Mesa IATA code
QLA
Costa Mesa Country/State
California
Airline ticket deals from Costa Mesa
RM1,868 - RM2,428

 

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.