Cheap flights from Toronto to Costa Mesa from C$ 142
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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Toronto to Costa Mesa are usually found in September or May, booked 84 days in advance, depart on a Thursday or Wednesday and return on a Monday
Cheap flight deals from Toronto to Costa Mesa
Keep the following information in mind while searching for Toronto to Costa Mesa flight deals. Data was last updated 12 June 2025.
Find flight deals from Toronto to Costa Mesa
Cheapest flights from Toronto to Costa MesaExplore the most affordable flight options available from Toronto to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Explore the most affordable flight options available from Toronto to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Toronto to Costa Mesa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
Use the filters below to find and compare flights from Toronto to Costa Mesa that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
HamiltonLos Angeles
YHM - LAX
YHMLAX
Hamilton
Wed 27/8
6:00 a.m.-2:12 p.m.
1 stop11h 12m
Los Angeles
Wed 3/9
11:40 a.m.-12:40 a.m.
1 stop10h 00m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Wed 27/8
3:00 p.m.-9:47 p.m.
1 stop9h 47m
Los Angeles
Wed 3/9
3:00 p.m.-5:51 a.m.
2 stops11h 51m
TorontoLos Angeles
YKF - LAX
YKFLAX
Toronto Region of Waterloo Intl
Thu 16/10
6:00 a.m.-2:11 p.m.
1 stop11h 11m
Los Angeles
Fri 24/10
11:40 a.m.-12:45 a.m.
1 stop10h 05m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Mon 3/11
9:25 a.m.-12:03 p.m.
Nonstop5h 38m
Los Angeles
Fri 14/11
7:00 a.m.-7:10 p.m.
1 stop9h 10m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Fri 18/7
7:30 a.m.-2:44 p.m.
1 stop10h 14m
Los Angeles
Sun 27/7
9:55 p.m.-5:45 a.m.
Nonstop4h 50m
TorontoLos Angeles
YTZ - LAX
YTZLAX
Toronto Island
Mon 15/9
3:25 p.m.-9:35 p.m.
1 stop9h 10m
Los Angeles
Wed 17/9
10:30 p.m.-9:45 a.m.
1 stop8h 15m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Fri 29/8
4:18 p.m.-9:21 p.m.
1 stop8h 03m
Los Angeles
Sat 6/9
11:59 p.m.-9:58 a.m.
1 stop6h 59m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Mon 21/7
4:15 p.m.-11:57 p.m.
1 stop10h 42m
Los Angeles
Tue 29/7
10:38 a.m.-11:29 p.m.
2 stops9h 51m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Thu 7/8
5:45 p.m.-11:51 p.m.
1 stop9h 06m
Los Angeles
Thu 14/8
12:10 p.m.-11:59 p.m.
1 stop8h 49m
TorontoLos Angeles
YKF - LAX
YKFLAX
Toronto Region of Waterloo Intl
Mon 4/8
6:00 a.m.-10:50 p.m.
3 stops19h 50m
Los Angeles
Tue 12/8
7:00 a.m.-6:56 p.m.
1 stop8h 56m
Best time to book a flight from Toronto to Costa Mesa
Have a flexible travel schedule? Discover the best time to fly to Costa Mesa from Toronto with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Toronto to Costa Mesa
How far ahead should I book a flight from Toronto 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 9 June 2025.
The best time to book flights from Toronto to Costa Mesa is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Toronto to Costa Mesa?
Currently, September is the cheapest month in which you can book a flight from Toronto to Costa Mesa (average of C$ 226). Flying from Toronto to Costa Mesa in July is currently the most expensive (average of C$ 306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from YTO to CM3?
Find hourly flight availability from Toronto to Costa Mesa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.
When flying from Toronto to Costa Mesa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What is the cheapest day to fly from Toronto 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.
Travelers seeking maximum savings on their Toronto to Costa Mesa flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Toronto to Costa Mesa
Explore weekly flight availability from Toronto to Costa Mesa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 June 2025.
The most flights from YTO to CM3 are scheduled on a Thursday (24 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (12 on average).
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 12 June 2025.
See what other customers who have flown with Porter Airlines, Delta and Air Transat from Toronto to Costa Mesa have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Mary,Jun 2025
FLL - YYZ
Related info for your journey
Find useful and relevant information for your journey from Toronto to Costa Mesa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Toronto to Costa Mesa
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Toronto to Costa Mesa
Discover the top 7 airlines that operate flights from Toronto to Costa Mesa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
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