C$ 143+ 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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
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 629,999 searches and data was last updated on 18 June 2025.
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 18 June 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 18 June 2025.
Cheapflights Fare Finder
Locate flights to Costa Mesa that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 18 June 2025.
Use the filters below to find and compare flights to Costa Mesa that are best for you.
Fly from
Route
Depart
Return
Price
HamiltonLos Angeles
YHM - LAX
YHMLAX
Hamilton
Wed 8/10
6:00 a.m.-2:11 p.m.
1 stop11h 11m
Los Angeles
Wed 15/10
11:40 a.m.-12:40 a.m.
1 stop10h 00m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Mon 15/9
8:00 a.m.-2:11 p.m.
1 stop9h 11m
Los Angeles
Sat 20/9
12:35 p.m.-12:43 a.m.
1 stop9h 08m
TorontoLos Angeles
YKF - LAX
YKFLAX
Toronto Region of Waterloo Intl
Mon 1/9
6:00 a.m.-2:11 p.m.
1 stop11h 11m
Los Angeles
Thu 4/9
7:00 a.m.-12:45 a.m.
1 stop14h 45m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Sat 30/8
10:40 a.m.-1:00 p.m.
Nonstop5h 20m
Los Angeles
Tue 2/9
7:00 a.m.-6:52 p.m.
1 stop8h 52m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Wed 6/8
6:21 p.m.-8:13 a.m.
1 stop16h 52m
Los Angeles
Mon 11/8
10:45 p.m.-10:59 p.m.
1 stop21h 14m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Wed 3/9
6:35 p.m.-8:53 p.m.
Nonstop5h 18m
Los Angeles
Mon 8/9
9:55 p.m.-5:46 a.m.
Nonstop4h 51m
TorontoLos Angeles
YTZ - LAX
YTZLAX
Toronto Island
Sat 12/7
3:25 p.m.-9:35 p.m.
1 stop9h 10m
Los Angeles
Sat 19/7
10:30 p.m.-11:46 a.m.
1 stop10h 16m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Sat 19/7
9:00 a.m.-8:47 p.m.
1 stop14h 47m
Los Angeles
Fri 25/7
10:50 p.m.-7:05 p.m.
1 stop17h 15m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Thu 17/7
9:45 a.m.-6:44 p.m.
1 stop11h 59m
Los Angeles
Mon 28/7
11:45 p.m.-12:05 p.m.
1 stop9h 20m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Thu 7/8
10:40 a.m.-1:00 p.m.
Nonstop5h 20m
Los Angeles
Mon 11/8
2:00 p.m.-9:57 p.m.
Nonstop4h 57m
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 round-trip flight from Toronto to Costa Mesa. Price data was last updated on 13 June 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 84 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 Toronto to Costa Mesa takes 9 hours 5 minutes. Flights to Costa Mesa from other popular cities in Canada 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 round-trip from Toronto 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 Thursday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday at noon, when prices are usually at their highest.
Weekly flight availability to Costa Mesa
The most flights from Toronto to Costa Mesa are scheduled on a Monday (22 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
What are the most popular airlines that fly to Costa Mesa?
The most popular airlines flying from Toronto to Costa Mesa are Porter Airlines, WestJet and Air Canada.
What are the cheapest airlines that fly to Costa Mesa?
The cheapest airlines flying from Toronto to Costa Mesa are American Airlines, WestJet and Porter 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 18 June 2025.
Read reviews from past customers who have flown Porter Airlines, Delta and Air Transat to Costa Mesa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Entertainment
Crew
Boarding
Comfort
Overall
Reviews
Mary,Jun 2025
FLL - YYZ
FAQs about flying to Costa Mesa
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Users can book flights with no change fees policies with our dedicated filters. Book flights to Costa Mesa flexibly with Cheapflights today.
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