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C$ 215+ 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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
— LAX
14 Jan — 21 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Costa Mesa in 2025

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 15 December 2025.

Wed 31/127:40 p.m.YYZ - LAX
1 stop16h 23mUnited Airlines
Mon 5/111:55 p.m.LAX - YYZ
1 stop16h 50mUnited Airlines
Deal found 14/12C$ 549
Wed 31/127:10 a.m.YYZ - LAX
2 stops17h 36mMultiple Airlines
Sun 11/15:45 p.m.LAX - YYZ
1 stop9h 28mMultiple Airlines
Deal found 14/12C$ 574
Thu 18/1210:15 p.m.YYZ - LAX
1 stop26h 48mWestJet
Thu 15/111:50 a.m.LAX - YYZ
2 stops15h 08mWestJet
Deal found 13/12C$ 577
Tue 30/129:35 a.m.YYZ - LAX
1 stop10h 29mMultiple Airlines
Tue 6/18:23 a.m.LAX - YYZ
1 stop11h 17mMultiple Airlines
Deal found 14/12C$ 589
Wed 31/126:10 a.m.YYZ - LAX
1 stop11h 46mDelta
Sun 11/15:45 p.m.LAX - YYZ
1 stop9h 28mDelta
Deal found 15/12C$ 595
Tue 23/124:40 p.m.YYZ - LAX
1 stop10h 00mAmerican Airlines
Tue 17/212:57 a.m.LAX - YYZ
1 stop12h 02mAmerican Airlines
Deal found 12/12C$ 622
Tue 23/124:40 p.m.YYZ - LAX
1 stop8h 40mAmerican Airlines
Fri 9/19:00 a.m.LAX - YYZ
1 stop10h 42mAmerican Airlines
Deal found 14/12C$ 624
Tue 30/129:35 a.m.YYZ - LAX
1 stop10h 29mMultiple Airlines
Mon 5/15:59 p.m.LAX - YYZ
1 stop9h 48mMultiple Airlines
Deal found 14/12C$ 625
Thu 18/1210:15 p.m.YYZ - LAX
1 stop26h 48mWestJet
Thu 25/127:20 p.m.LAX - YYZ
1 stop19h 03mWestJet
Deal found 14/12C$ 626
Thu 18/124:44 p.m.YYZ - LAX
1 stop9h 24mAmerican Airlines
Thu 15/16:30 a.m.LAX - YYZ
1 stop7h 58mAmerican Airlines
Deal found 13/12C$ 628
Sat 20/126:45 p.m.YYZ - LAX
1 stop8h 14mAir Canada
Sun 25/110:55 p.m.LAX - YYZ
Nonstop4h 45mAir Canada
Deal found 13/12C$ 632
Wed 31/123:00 p.m.YTZ - LAX
1 stop24h 23mMultiple Airlines
Sun 18/18:20 a.m.LAX - YTZ
1 stop8h 30mMultiple Airlines
Deal found 14/12C$ 859

Find flight deals to Costa Mesa

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 15 December 2025.

Round-trip from

C$ 328

One-way from

C$ 215

Popular in

December

Cheapest in

May

Average price

C$ 582
WestJet
  • WestJet
  • 18/2-11/3
  • 2 total stops
  • 21h 09m total
  • Toronto to Los Angeles
Search Deals
WestJet
  • WestJet
  • 20/2
  • 2 total stops
  • 14h 52m total
  • Toronto to Costa Mesa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 15 December 2025.
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

Sat 16/5

6:00 a.m.-2:20 p.m.

1 stop11h 20m

Los Angeles

Tue 19/5

7:00 a.m.-12:45 a.m.

1 stop14h 45m

C$ 347

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sat 10/1

9:00 a.m.-6:47 p.m.

1 stop12h 47m

Los Angeles

Sat 10/1

9:30 p.m.-9:36 a.m.

1 stop9h 06m

C$ 369

TorontoLos Angeles

YKF - LAX

YKFLAX

Toronto Region of Waterloo Intl

Thu 21/5

6:00 a.m.-2:20 p.m.

1 stop11h 20m

Los Angeles

Sat 30/5

11:40 a.m.-12:45 a.m.

1 stop10h 05m

C$ 373

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Mon 12/1

7:45 a.m.-2:46 p.m.

1 stop10h 01m

Los Angeles

Mon 19/1

10:20 p.m.-9:04 a.m.

1 stop7h 44m

C$ 377

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 11/2

9:00 a.m.-3:31 p.m.

1 stop9h 31m

Los Angeles

Sat 21/2

10:55 p.m.-9:58 a.m.

1 stop8h 03m

C$ 377

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 18/3

10:05 a.m.-2:35 p.m.

1 stop7h 30m

Los Angeles

Fri 20/3

6:00 a.m.-3:59 p.m.

1 stop6h 59m

C$ 377

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Fri 3/4

5:15 p.m.-10:45 p.m.

1 stop8h 30m

Los Angeles

Fri 10/4

10:50 p.m.-11:49 a.m.

1 stop9h 59m

C$ 377

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sun 22/3

6:05 p.m.-11:52 p.m.

1 stop8h 47m

Los Angeles

Wed 25/3

9:40 p.m.-11:23 a.m.

1 stop10h 43m

C$ 377

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sat 24/1

10:00 a.m.-7:15 p.m.

2 stops12h 15m

Los Angeles

Mon 6/4

11:45 p.m.-10:04 a.m.

1 stop7h 19m

C$ 377

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 18/2

5:55 p.m.-12:30 a.m.

1 stop9h 35m

Los Angeles

Sat 28/2

10:55 p.m.-9:58 a.m.

1 stop8h 03m

C$ 377

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/12

Showing 1-10 of 60 results
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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 12 December 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 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 9 hours 8 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 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 Friday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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$ 167
Air Canada
Air Canada
From C$ 138
Porter Airlines
Porter Airlines
From C$ 262
United Airlines
United Airlines
From C$ 200

What are the cheapest airlines that fly to Costa Mesa?

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

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 15 December 2025.
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
8.0
Very good
399 reviews
Check prices

Overall

8.0

Crew

8.6

Food

7.6

Boarding

8.2

Comfort

7.9

Entertainment

7.0

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
8.0
Very good
399 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Overall

8.0

Crew

8.6

Food

7.6

Boarding

8.2

Comfort

7.9

Entertainment

7.0

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
7.8
Good
482 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Overall

8.0

Crew

8.6

Food

7.6

Boarding

8.2

Comfort

7.9

Entertainment

7.0

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
9,092 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Overall

8.0

Crew

8.6

Food

7.6

Boarding

8.2

Comfort

7.9

Entertainment

7.0

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
3,202 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Overall

8.0

Crew

8.6

Food

7.6

Boarding

8.2

Comfort

7.9

Entertainment

7.0

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
10,525 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Overall

8.0

Crew

8.6

Food

7.6

Boarding

8.2

Comfort

7.9

Entertainment

7.0

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$ 198, however they can be found for as little as C$ 60.

  • 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. 2BR Furn Home - Safe/Quiet/Clean So Bay Nr Bch/LAX - 40% off for 30+ days is the closest property to Los Angeles (0.0 km away from Los Angeles).

See more FAQs

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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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