Cheapflights Tip: The best prices from Toronto to Costa Mesa are usually found in January or April, booked 63 days in advance, depart on a Thursday or Friday and return on a Friday
Find 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 6 November 2026.
Popular in
August
Cheapest in
January
Average price
C$ 559
Highest demand for flights based on searches. 6% potential increase in price (C$ 53 potential increase over avg. RT price).
Everything you need to know about your flight from Toronto to Costa Mesa
Prices
Airlines
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 6 November 2026.
It’s optimal to fly from Toronto to Costa Mesa in the morning. By choosing this option you can save up to 52% on the cost of your flight, compared to a flight in the evening.
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 31 October 2026.
Travelers seeking maximum savings on their Toronto to Costa Mesa flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings 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 6 November 2026.
The most flights from YTO to CM3 are scheduled on a Wednesday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (12 on average).
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 6 November 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andUnited Airlines
from Toronto to Costa Mesa. 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.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
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.
What are the cheapest airlines to fly from Toronto to Costa Mesa one-way?
One-way options have recently been found by users for as low as C$ 192 on Porter Airlines. Other airlines that offer cheap prices include WestJet from C$ 197 and Air Transat from C$ 209 one-way.
What are the most popular routes from Toronto to Costa Mesa?
While some choose either Toronto Island - Los Angeles or Hamilton - Los Angeles, Toronto Pearson Intl - Los Angeles is the most popular route from Toronto to Costa Mesa.
What are the most reliable airlines from Toronto to Costa Mesa?
Consider Brussels Airlines (83%), Air New Zealand (76%) or Porter Airlines (75%) when booking your flight. These represent the most reliable airlines when flying from Toronto to Costa Mesa.
What are the cheapest flights from Toronto to Costa Mesa?
On average you can expect to pay C$ 1,732 for a flight from Toronto to Costa Mesa. The cheapest flight overall is C$ 223 while the most popular route, (Toronto Pearson Intl - Los Angeles) is currently priced at C$ 342.
Can I find deals for business class flights from Toronto to Costa Mesa?
Yes. Cheapflights offers flight deals from Toronto to Costa Mesa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Discover the top 8 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 7,457,451 searches. Data last updated 6 November 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Toronto to Costa Mesa?
Cheapflights makes it easy to find Toronto to Costa Mesa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Toronto 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 from Toronto to Costa Mesa.
Can Cheapflights find flights from Toronto to Costa Mesa with no change fees?
Yes! Cheapflights helps users easily find flights from Toronto to Costa Mesa with no change fees.
Can Cheapflights notify me if prices for flights from Toronto to Costa Mesa become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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