Find flights
Deals
Airlines

C$ 198+ 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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
— LAX
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Costa Mesa in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Costa Mesa
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 29 January 2026.

Tue 10/39:40 a.m.
YYZ
-
LAX
2 stops11h 50m
WestJet
Fri 13/311:50 a.m.
LAX
-
YYZ
1 stop9h 05m
WestJet
Deal found 28/1C$ 310
Tue 10/31:30 p.m.
YYZ
-
LAX
1 stop11h 33m
WestJet
Tue 17/37:00 a.m.
LAX
-
YYZ
2 stops13h 35m
WestJet
Deal found 28/1C$ 311
Wed 18/29:40 a.m.
YYZ
-
LAX
2 stops11h 50m
WestJet
Wed 4/37:00 a.m.
LAX
-
YYZ
2 stops13h 35m
WestJet
Deal found 26/1C$ 312
Wed 18/29:40 a.m.
YYZ
-
LAX
2 stops11h 50m
WestJet
Thu 26/211:50 a.m.
LAX
-
YYZ
1 stop9h 05m
WestJet
Deal found 26/1C$ 318
Fri 6/39:35 a.m.
YYZ
-
LAX
1 stop10h 37m
Multiple Airlines
Fri 13/31:40 p.m.
LAX
-
YYZ
Nonstop4h 45m
Multiple Airlines
Deal found 28/1C$ 320
Sun 8/38:00 p.m.
YYZ
-
LAX
1 stop15h 20m
Multiple Airlines
Sat 14/31:40 p.m.
LAX
-
YYZ
Nonstop4h 45m
Multiple Airlines
Deal found 28/1C$ 322
Wed 11/310:00 a.m.
YYZ
-
LAX
1 stop9h 58m
WestJet
Sun 15/37:00 a.m.
LAX
-
YYZ
2 stops13h 35m
WestJet
Deal found 28/1C$ 323
Thu 19/27:15 a.m.
YYZ
-
LAX
1 stop15h 37m
WestJet
Thu 26/211:50 a.m.
LAX
-
YYZ
1 stop9h 05m
WestJet
Deal found 26/1C$ 324
Fri 6/37:45 a.m.
YYZ
-
LAX
2 stops15h 07m
WestJet
Fri 13/37:00 a.m.
LAX
-
YYZ
2 stops13h 35m
WestJet
Deal found 28/1C$ 326
Mon 9/312:30 p.m.
YTZ
-
LAX
2 stops12h 30m
Air Canada
Sat 14/38:15 a.m.
LAX
-
YTZ
1 stop8h 40m
Air Canada
Deal found 27/1C$ 342
Mon 9/36:20 a.m.
YKF
-
LAX
1 stop18h 43m
WestJet
Wed 22/47:00 a.m.
LAX
-
YKF
1 stop19h 29m
WestJet
Deal found 28/1C$ 358
Fri 6/312:30 p.m.
YTZ
-
LAX
2 stops12h 30m
Air Canada
Mon 16/36:10 p.m.
LAX
-
YTZ
2 stops14h 32m
Air Canada
Deal found 27/1C$ 377

Find flight deals to Costa Mesa

Find the latest flights to Costa Mesa in 2026, 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 29 January 2026.

Round-trip from

C$ 310

One-way from

C$ 198

Popular in

December

Cheapest in

May

Average price

C$ 444
WestJet
  • WestJet
  • 10/3-13/3
  • 3 total stops
  • 20h 55m total
  • Toronto to Los Angeles
Search Deals
WestJet
  • WestJet
  • 24/3
  • 1 total stop
  • 18h 43m total
  • Toronto to Costa Mesa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 29 January 2026.
Use the filters below to find and compare flights to Costa Mesa that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoLos Angeles

YKF - LAX

YKFLAX

Toronto Region of Waterloo Intl

Mon 18/5

8:40 p.m.-5:10 p.m.

1 stop23h 30m

Los Angeles

Wed 20/5

8:30 a.m.-7:50 p.m.

1 stop8h 20m

C$ 379

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sat 21/3

3:59 p.m.-10:45 p.m.

1 stop9h 46m

Los Angeles

Mon 13/4

11:59 p.m.-11:31 a.m.

1 stop8h 32m

C$ 381

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Mon 23/3

6:14 p.m.-12:56 a.m.

1 stop9h 42m

Los Angeles

Mon 13/4

11:59 p.m.-11:31 a.m.

1 stop8h 32m

C$ 381

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 25/3

6:08 p.m.-11:52 p.m.

1 stop8h 44m

Los Angeles

Tue 14/4

6:00 a.m.-6:31 p.m.

1 stop9h 31m

C$ 381

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sat 25/4

6:11 p.m.-10:23 p.m.

1 stop7h 12m

Los Angeles

Wed 6/5

11:40 p.m.-1:25 p.m.

1 stop10h 45m

C$ 387

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sun 22/3

6:08 p.m.-10:45 p.m.

1 stop7h 37m

Los Angeles

Wed 25/3

9:40 p.m.-9:05 a.m.

1 stop8h 25m

C$ 388

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 1/4

3:59 p.m.-11:52 p.m.

1 stop10h 53m

Los Angeles

Tue 7/4

6:00 a.m.-5:00 p.m.

1 stop8h 00m

C$ 390

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Mon 16/3

5:10 p.m.-11:55 p.m.

1 stop9h 45m

Los Angeles

Tue 24/3

10:55 p.m.-11:06 a.m.

1 stop9h 11m

C$ 390

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 25/3

6:08 p.m.-11:52 p.m.

1 stop8h 44m

Los Angeles

Wed 1/4

7:00 a.m.-5:00 p.m.

1 stop7h 00m

C$ 390

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Thu 19/2

10:05 a.m.-6:57 p.m.

1 stop11h 52m

Los Angeles

Fri 27/2

10:20 p.m.-11:18 a.m.

1 stop9h 58m

C$ 390

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 60 results
1
2
3
...
6

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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 23 January 2026.

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 88 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 10 hours 16 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 24 January 2026.

Users looking for the lowest fares to Costa Mesa should consider flying on Thursday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, 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 Wednesday (18 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 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, Air Canada and WestJet.

WestJet
WestJet
From C$ 132
Air Canada
Air Canada
From C$ 110
Porter Airlines
Porter Airlines
From C$ 223
United Airlines
United Airlines
From C$ 154

What are the cheapest airlines that fly to Costa Mesa?

The cheapest airlines flying from Toronto to Costa Mesa are American Airlines, WestJet and Air Canada.

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 29 January 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andUnited Airlines to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Entertainment

6.9

Food

7.5

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Entertainment

6.9

Food

7.5

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Transat
7.7
Good
501 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Entertainment

6.9

Food

7.5

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,215 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Entertainment

6.9

Food

7.5

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,253 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Entertainment

6.9

Food

7.5

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,667 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Entertainment

6.9

Food

7.5

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

FAQs about flying to Costa Mesa

  • Can I find cheaper flights to Costa Mesa if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Costa Mesa on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Costa Mesa?

    Based on reviews from Cheapflights users, Flair Airlines is rated the highest out of the airlines that fly to Costa Mesa.

  • How much is a round-trip flight to Costa Mesa?

    A round-trip flight to Costa Mesa will typically cost around C$ 451, however they can be found for as little as C$ 65.

  • Where does the fastest flight to Costa Mesa depart from?

    For those looking to save time traveling to Costa Mesa, Vancouver offers the quickest one-way flight (2 hours 55 minutes).

  • Does Los Angeles have rental cars?

    Yes. Those touching down at Los Angeles can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Los Angeles?

    Yes. Los Angeles has hotels nearby for those requiring accommodations. Hyatt Regency Los Angeles International Airport is the closest property to Los Angeles (0.0 km away from Los Angeles).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Costa Mesa by cabin class

Find flights to Costa Mesa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Premium Economy Class
Economy Class

Fly with Cheapflights

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 to Costa Mesa?

Deals for Costa Mesa flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Costa Mesa?

Cheapflights helps you find that perfect flight to Costa Mesa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Costa Mesa with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Costa Mesa flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to Costa Mesa become cheaper?

Yes, and it’s super simple to set up Price Alerts. Click the bell icon next to the flight deals above and provide your email address. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.