$588+ Cheap flights to Costa Mesa
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals to Costa Mesa
Cheapest flights to Costa MesaExplore the most affordable flight options available to Costa Mesa. Find the lowest fares based on data from user searches, with prices last updated on 30 October 2025.
Explore the most affordable flight options available to Costa Mesa. Find the lowest fares based on data from user searches, with prices last updated on 30 October 2025.
Flights to Costa Mesa in 2025
Find the latest flights to Costa Mesa in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 30 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights to Costa Mesa that are best for you.
Fly from
Route
Depart
Return
Price
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Sat 22/11
11:45-11:15
1 stop18h 30m
Los Angeles
Sat 6/12
20:10-10:30
1 stop19h 20m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Sun 16/11
21:40-05:00
1 stop26h 20m
Los Angeles
Mon 12/1
07:00-19:45
1 stop17h 45m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Sun 7/12
21:40-23:13
2 stops20h 33m
Los Angeles
Mon 29/12
20:42-19:45
1 stop28h 03m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Fri 13/2
21:40-23:55
1 stop21h 15m
Los Angeles
Thu 19/2
09:50-19:45
2 stops38h 55m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Sat 8/11
21:40-21:54
2 stops43h 14m
Los Angeles
Sat 15/11
07:00-19:45
1 stop17h 45m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Sun 7/12
21:40-23:35
1 stop20h 55m
Los Angeles
Fri 12/12
11:45-19:45
1 stop37h 00m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Sat 6/12
21:40-15:27
1 stop36h 47m
Los Angeles
Wed 17/12
10:00-19:45
1 stop38h 45m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Tue 9/12
11:20-06:00
Nonstop13h 40m
Los Angeles
Wed 31/12
22:55-09:05
Nonstop15h 10m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Tue 11/11
10:40-05:40
Nonstop14h 00m
Los Angeles
Sun 11/1
22:35-08:30
Nonstop14h 55m
SydneyLos Angeles
SYD - LAX
SYDLAX
Sydney Kingsford Smith
Mon 8/12
12:10-12:26
1 stop19h 16m
Los Angeles
Sun 18/1
16:15-09:15
1 stop22h 00m
Best time to book a flight to Costa Mesa
Have a flexible travel schedule? Discover the best time to fly to Costa Mesa with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Costa Mesa
When is the best time to book a flight to Costa Mesa?
Use this chart to determine the optimal time to book a return flight from Sydney to Costa Mesa. Price data was last updated on 24 October 2025.
The price you pay for your flight to Costa Mesa may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
How long is the flight to Costa Mesa?
On average, a flight from Sydney to Costa Mesa takes 13 hours 40 minutes. Flights to Costa Mesa from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.
When is the cheapest time to fly to Costa Mesa?
Use this chart to determine the cheapest time to fly return from Sydney to Costa Mesa. Price data was last updated on 16 December 2024.
Users looking for the lowest fares to Costa Mesa should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, when prices are usually at their highest.
What are the most popular airlines that fly to Costa Mesa?
The most popular airlines flying from Sydney to Costa Mesa are Qantas Airways, Fiji Airways and United Airlines.
What are the cheapest airlines that fly to Costa Mesa?
The cheapest airlines flying from Sydney to Costa Mesa are Delta, Hawaiian Airlines and Alaska Airlines.
Rainfall in Costa Mesa by month
Plan your trip to Costa Mesa by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Costa Mesa ranges from 0.0 - 87.0 mm per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit Costa Mesa when rainfall is around 0.0 mm.
Temperature in Costa Mesa by month
Plan your trip to Costa Mesa by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Costa Mesa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).
Reviews of airlines servicing Costa Mesa
Get insights into the airlines that provide service to Costa Mesa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Mesa. Reviews last updated 30 October 2025.
Read reviews from past customers who have flown Fiji Airways, Air New Zealand, andVirgin Australia to the United States. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Food
Overall
Comfort
Crew
Reviews
Anonymous,Oct 2025
CNS - NAN
Entertainment
Boarding
Food
Overall
Comfort
Crew
Reviews
Anonymous,Oct 2025
CNS - NAN
Entertainment
Boarding
Food
Overall
Comfort
Crew
Reviews
Anonymous,Oct 2025
CNS - NAN
Entertainment
Boarding
Food
Overall
Comfort
Crew
Reviews
Anonymous,Oct 2025
CNS - NAN
Entertainment
Boarding
Food
Overall
Comfort
Crew
Reviews
Anonymous,Oct 2025
CNS - NAN
Entertainment
Boarding
Food
Overall
Comfort
Crew
Reviews
Anonymous,Oct 2025
CNS - NAN
FAQs about flying to Costa Mesa
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How does Cheapflights help users find flights to Costa Mesa?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Costa Mesa. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets to Costa Mesa?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Costa Mesa.
Can Cheapflights find flights to Costa Mesa with no change fees?
Certainly. Search results for flights to Costa Mesa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights to Costa Mesa become cheaper?
Yes, Cheapflights offers price alerts on Costa Mesa flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.