How long is the flight from Toronto to Costa Mesa?

There are many flights that can get you from Toronto to Costa Mesa in 9h 54m. Fly via Delta, WestJet, or United Airlines to get the fastest option. The distance from Toronto to Costa Mesa is about 3492 km. Both multi-stop and direct flights can be found to your destination and back.

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$ 134 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 163 and Air Transat from C$ 185 one-way.

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.

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).

What are the most popular routes from Toronto to Costa Mesa?

While some choose either Toronto Island - Los Angeles Los Angeles or Hamilton - Los Angeles Los Angeles, Toronto Pearson Intl - Los Angeles Los Angeles is the most popular route from Toronto to Costa Mesa.

What are the cheapest flights from Toronto to Costa Mesa?

On average you can expect to pay C$ 3,399 for a flight from Toronto to Costa Mesa. The cheapest flight overall is C$ 266 while the most popular route, (Toronto Pearson Intl - Los Angeles Los Angeles) is currently priced at C$ 386.

What are the most reliable airlines from Toronto to Costa Mesa?

Consider American Airlines (90%), Porter Airlines (90%) or Air Transat (90%) when booking your flight. These represent the most reliable airlines when flying from Toronto to Costa Mesa.

What are the most popular airlines that fly from Toronto to Costa Mesa?

The most popular airlines flying from Toronto to Costa Mesa are Porter Airlines, Air Canada and WestJet. Something to consider prior to booking your flight.

Can I find deals for flights from Toronto to Costa Mesa that include hotel bookings?

Yes. In addition to deals on Toronto to Costa Mesa flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Toronto to Costa Mesa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto to Costa Mesa.

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.

C$ 256+ Cheap Flights from Toronto to Costa Mesa

Cheapflights Tip: The best prices from Toronto to Costa Mesa are usually found in January or November, booked 69 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Toronto to Costa Mesa

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Toronto to Costa Mesa
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 8 September 2026.

Thu 15/102:50 p.m. -

1 stop10h 15m

Sun 25/107:00 a.m. -

1 stop14h 55m

Deal found 4/9C$ 437

Sun 4/108:40 p.m. -

1 stop18h 45m

Sun 11/107:30 a.m. -

1 stop9h 20m

Deal found 5/9C$ 437

Wed 2/1210:50 p.m. -

2 stops20h 20m

Wed 9/1212:10 p.m. -

1 stop8h 45m

Deal found 3/9C$ 438

Tue 24/117:00 a.m. -

2 stops12h 10m

Mon 30/117:00 a.m. -

2 stops13h 40m

Deal found 3/9C$ 440

Mon 28/98:40 p.m. -

1 stop28h 25m

Wed 30/97:30 a.m. -

1 stop9h 20m

Deal found 6/9C$ 440

Tue 24/1110:50 p.m. -

2 stops15h 25m

Tue 1/127:00 a.m. -

2 stops13h 40m

Deal found 3/9C$ 441

Sat 3/1010:00 a.m. -

1 stop10h 10m

Sat 10/103:00 p.m. -

1 stop11h 45m

Deal found 3/9C$ 442

Fri 16/104:00 p.m. -

1 stop8h 31m

Wed 21/104:30 p.m. -

Nonstop4h 43m

Deal found 3/9C$ 444

Sun 11/108:40 p.m. -

1 stop21h 05m

Mon 19/107:30 a.m. -

1 stop9h 20m

Deal found 5/9C$ 444

Wed 21/1012:30 p.m. -

1 stop10h 24m

Mon 26/108:30 a.m. -

1 stop8h 26m

Deal found 3/9C$ 444

Fri 16/1011:05 a.m. -

Nonstop5h 15m

Tue 20/101:15 p.m. -

1 stop8h 50m

Deal found 3/9C$ 445

Mon 12/106:00 a.m. -

1 stop9h 25m

Tue 27/107:00 a.m. -

1 stop10h 20m

Deal found 3/9C$ 446

Best flights from Toronto to Costa Mesa
Discover carefully curated flight deals from Toronto to Costa Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Sat 26/93:53 p.m. -

1 stop10h 37m

Thu 8/104:30 p.m. -

Nonstop4h 43m

Deal found 3/9C$ 459

Sat 14/116:00 a.m. -

1 stop11h 14m

Tue 17/1112:35 p.m. -

1 stop8h 22m

Deal found 3/9C$ 469

Mon 21/98:40 p.m. -

1 stop28h 25m

Sun 11/107:30 a.m. -

1 stop9h 20m

Deal found 3/9C$ 470

Mon 26/108:35 a.m. -

1 stop9h 54m

Sat 7/116:00 a.m. -

1 stop8h 49m

Deal found 5/9C$ 481

Thu 3/126:30 a.m. -

1 stop15h 47m

Sun 6/127:40 a.m. -

Nonstop4h 46m

Deal found 6/9C$ 462

Mon 19/106:10 p.m. -

1 stop26h 00m

Mon 26/106:00 p.m. -

1 stop18h 25m

Deal found 4/9C$ 478

Wed 28/103:35 p.m. -

1 stop7h 56m

Fri 6/1112:40 p.m. -

1 stop8h 19m

Deal found 5/9C$ 481

Wed 30/94:05 p.m. -

1 stop9h 05m

Tue 13/1010:05 p.m. -

1 stop7h 44m

Deal found 4/9C$ 492

Wed 30/98:50 a.m. -

1 stop7h 16m

Fri 2/104:30 p.m. -

Nonstop4h 43m

Deal found 3/9C$ 474

Sat 10/1012:10 p.m. -

1 stop10h 42m

Tue 13/1010:05 p.m. -

1 stop7h 44m

Deal found 5/9C$ 492

Tue 17/113:25 p.m. -

1 stop27h 45m

Mon 30/115:00 p.m. -

1 stop18h 25m

Deal found 4/9C$ 493

Thu 22/106:10 p.m. -

1 stop26h 00m

Mon 26/106:00 p.m. -

1 stop18h 25m

Deal found 3/9C$ 499

Sat 26/910:45 a.m. -

1 stop7h 18m

Tue 29/911:55 a.m. -

Nonstop4h 30m

Deal found 6/9C$ 520

Thu 24/96:10 p.m. -

1 stop7h 00m

Sun 27/98:25 a.m. -

1 stop11h 48m

Deal found 4/9C$ 536

Thu 24/93:53 p.m. -

1 stop18h 38m

Sun 27/912:25 p.m. -

1 stop7h 53m

Deal found 5/9C$ 520

Sun 18/108:40 p.m. -

1 stop23h 30m

Wed 21/107:30 a.m. -

1 stop9h 20m

Deal found 7/9C$ 521

Mon 16/113:15 p.m. -

1 stop10h 37m

Tue 24/117:03 p.m. -

2 stops18h 38m

Deal found 6/9C$ 640

Thu 24/96:10 p.m. -

1 stop7h 00m

Wed 30/910:45 p.m. -

1 stop7h 08m

Deal found 4/9C$ 536

Wed 21/106:10 p.m. -

1 stop30h 55m

Mon 26/106:00 p.m. -

1 stop18h 25m

Deal found 5/9C$ 524

Mon 2/113:15 p.m. -

1 stop10h 37m

Wed 11/116:00 a.m. -

1 stop7h 41m

Deal found 5/9C$ 641

Tue 27/104:25 p.m. -

1 stop22h 50m

Sat 7/115:00 p.m. -

1 stop18h 25m

Deal found 5/9C$ 540

Thu 1/1012:15 p.m. -

1 stop8h 22m

Thu 8/105:30 a.m. -

1 stop8h 18m

Deal found 3/9C$ 683

Thu 26/1112:10 p.m. -

1 stop8h 25m

Sun 29/118:30 a.m. -

1 stop8h 26m

Deal found 5/9C$ 636

Thu 29/1012:10 p.m. -

2 stops11h 38m

Sat 31/103:18 p.m. -

2 stops16h 48m

Deal found 3/9C$ 683

Tue 22/98:40 p.m. -

1 stop28h 25m

Sat 26/96:05 p.m. -

1 stop22h 45m

Deal found 6/9C$ 576

Fri 27/1112:10 p.m. -

1 stop8h 10m

Tue 1/128:30 a.m. -

1 stop8h 26m

Deal found 3/9C$ 637

Thu 1/1012:15 p.m. -

1 stop8h 22m

Fri 9/1010:30 p.m. -

1 stop8h 35m

Deal found 5/9C$ 639

Mon 19/103:15 p.m. -

1 stop12h 30m

Mon 2/119:35 p.m. -

2 stops16h 06m

Deal found 6/9C$ 726

Sat 24/1012:15 p.m. -

1 stop8h 22m

Tue 27/108:30 a.m. -

1 stop8h 26m

Deal found 3/9C$ 641

Mon 21/98:40 p.m. -

1 stop28h 25m

Fri 25/94:55 p.m. -

2 stops23h 55m

Deal found 5/9C$ 658

Find flight deals from Toronto to Costa Mesa

Round-trip from	C$ 437
One-way from	C$ 256
Popular in	August
Cheapest in	January
Average price	C$ 521

WestJet
15/10-25/10
2 total stops
25h 10m total
Toronto to Costa Mesa

Search Deals

WestJet
15/12-31/12
1 total stop
8h 55m total
Toronto to Costa Mesa

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (C$ 82 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonLos Angeles

YHM Hamilton - LAX Los Angeles Los Angeles

YHMLAX

Hamilton

Thu 15/10

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

1 stop30h 55m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 271

HamiltonLos Angeles

YHM Hamilton - LAX Los Angeles Los Angeles

YHMLAX

Hamilton

Fri 16/10

6:10 p.m.-2:05 p.m.

1 stop22h 55m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 271

HamiltonLos Angeles

YHM Hamilton - LAX Los Angeles Los Angeles

YHMLAX

Hamilton

Sun 11/10

6:10 p.m.-12:25 p.m.

1 stop21h 15m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 271

TorontoLos Angeles

YYZ Toronto Pearson Intl - LAX Los Angeles Los Angeles

YYZLAX

Toronto Pearson Intl

Mon 28/9

7:00 p.m.-8:58 a.m.

1 stop16h 58m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 281

TorontoLos Angeles

YYZ Toronto Pearson Intl - LAX Los Angeles Los Angeles

YYZLAX

Toronto Pearson Intl

Wed 4/11

8:35 a.m.-6:00 p.m.

2 stops12h 25m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 281

TorontoLos Angeles

YYZ Toronto Pearson Intl - LAX Los Angeles Los Angeles

YYZLAX

Toronto Pearson Intl

Wed 18/11

6:45 a.m.-1:17 p.m.

2 stops9h 32m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 282

HamiltonLos Angeles

YHM Hamilton - LAX Los Angeles Los Angeles

YHMLAX

Hamilton

Thu 29/10

4:25 p.m.-5:10 p.m.

1 stop27h 45m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 282

HamiltonLos Angeles

YHM Hamilton - LAX Los Angeles Los Angeles

YHMLAX

Hamilton

Tue 6/10

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

1 stop30h 55m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 283

HamiltonLos Angeles

YHM Hamilton - LAX Los Angeles Los Angeles

YHMLAX

Hamilton

Sun 1/11

3:25 p.m.-4:10 p.m.

1 stop27h 45m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 285

TorontoLos Angeles

YYZ Toronto Pearson Intl - LAX Los Angeles Los Angeles

YYZLAX

Toronto Pearson Intl

Mon 28/9

7:45 a.m.-5:15 p.m.

1 stop12h 30m

Los Angeles Los Angeles

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 286

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YHM-LAX

YYZ-LAX

YKF-LAX

YTZ-LAX

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 from Toronto to Costa Mesa

YTO-CM3

YHM-LAX

YYZ-LAX

YKF-LAX

YTZ-LAX

What is the cheapest time of day to fly from YTO to CM3?

It’s optimal to fly from Toronto to Costa Mesa in the morning. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Toronto to Costa Mesa?

Airfare is below average for this route at the moment.

Toronto to Costa Mesa flights typically cost between C$ 444 and C$ 637 in October.
The cheapest round-trip price found within the last 5 days was C$ 437 on WestJet (15 Oct-25 Oct).

What is the cheapest day to fly from Toronto to Costa Mesa?

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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Costa Mesa

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.

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Porter Airlines

8.0

Very good

458 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Transat

7.8

Good

577 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

United Airlines

7.4

Good

10,181 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

WestJet

7.2

Good

3,447 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Canada

7.1

Good

11,600 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

How long is the flight from Toronto to Costa Mesa?
There are many flights that can get you from Toronto to Costa Mesa in 9h 54m. Fly via Delta, WestJet, or United Airlines to get the fastest option. The distance from Toronto to Costa Mesa is about 3492 km. Both multi-stop and direct flights can be found to your destination and back.
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$ 134 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 163 and Air Transat from C$ 185 one-way.
What are the most popular routes from Toronto to Costa Mesa?
While some choose either Toronto Island - Los Angeles Los Angeles or Hamilton - Los Angeles Los Angeles, Toronto Pearson Intl - Los Angeles Los Angeles is the most popular route from Toronto to Costa Mesa.
What are the most reliable airlines from Toronto to Costa Mesa?
Consider American Airlines (90%), Porter Airlines (90%) or Air Transat (90%) 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$ 3,399 for a flight from Toronto to Costa Mesa. The cheapest flight overall is C$ 266 while the most popular route, (Toronto Pearson Intl - Los Angeles Los Angeles) is currently priced at C$ 386.
Can I find deals for flights from Toronto to Costa Mesa that include hotel bookings?
Yes. In addition to deals on Toronto to Costa Mesa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Toronto to Costa Mesa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto to Costa Mesa.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

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London to Las Vegas flights

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Region of Waterloo Intl to Sacramento flights

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Ottawa to San Diego flights

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Ottawa to Santa Ana flights

Top 8 airlines flying from Toronto to Costa Mesa

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 206	AverageC$ 442	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Canada	CheapestC$ 232	AverageC$ 689	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 255	AverageC$ 469	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Porter Airlines	CheapestC$ 274	AverageC$ 506	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Transat	CheapestC$ 296	AverageC$ 579	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
American Airlines	CheapestC$ 303	AverageC$ 591	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 356	AverageC$ 707	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Jazz	CheapestC$ 927	AverageC$ 981	FlexibilityNo cancel fee	On-timeN/A	Search Jazz flights

Fly with Cheapflights

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.

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Cheap flights from Toronto to Costa Mesa from C$ 256

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 8 September 2026.

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 8 September 2026.

Best flights from Toronto to Costa MesaDiscover carefully curated flight deals from Toronto to Costa Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Discover carefully curated flight deals from Toronto to Costa Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Direct flights from Toronto to Costa MesaExplore direct flight options from Toronto to Costa Mesa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.

Explore direct flight options from Toronto to Costa Mesa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.

Last-minute flights from Toronto to Costa MesaDiscover last-minute flight deals from Toronto to Costa Mesa. Data last updated 8 September 2026 and is based on user searches.

Discover last-minute flight deals from Toronto to Costa Mesa. Data last updated 8 September 2026 and is based on user searches.

One-way flights from Toronto to Costa MesaSearch for one-way flight options from Toronto to Costa Mesa. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Search for one-way flight options from Toronto to Costa Mesa. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Find flight deals from Toronto to Costa Mesa

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Toronto to Costa Mesa that are best for you.

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

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 8 September 2026.

It’s optimal to fly from Toronto to Costa Mesa in the morning. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Toronto to Costa Mesa?

Airfare is below average for this route at the moment.

Toronto to Costa Mesa flights typically cost between C$ 444 and C$ 637 in October.The cheapest round-trip price found within the last 5 days was C$ 437 on WestJet (15 Oct-25 Oct).

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 5 September 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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Costa Mesa

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.

Related info for your journey

How long is the flight from Toronto to Costa Mesa?

What are the cheapest airlines to fly from Toronto to Costa Mesa one-way?

What are the most popular routes from Toronto to Costa Mesa?

What are the most reliable airlines from Toronto to Costa Mesa?

What are the cheapest flights from Toronto to Costa Mesa?

Can I find deals for flights from Toronto to Costa Mesa that include hotel bookings?

How can I find direct flights from Toronto to Costa Mesa?

Can I find deals for business class flights from Toronto to Costa Mesa?

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Toronto and Costa Mesa flights

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Top 8 airlines flying from Toronto to Costa Mesa

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Cheapest flights from Toronto to Costa Mesa
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 8 September 2026.

Best flights from Toronto to Costa Mesa
Discover carefully curated flight deals from Toronto to Costa Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Direct flights from Toronto to Costa Mesa
Explore direct flight options from Toronto to Costa Mesa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.

Last-minute flights from Toronto to Costa Mesa
Discover last-minute flight deals from Toronto to Costa Mesa. Data last updated 8 September 2026 and is based on user searches.

One-way flights from Toronto to Costa Mesa
Search for one-way flight options from Toronto to Costa Mesa. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Toronto to Costa Mesa flights typically cost between C$ 444 and C$ 637 in October.
The cheapest round-trip price found within the last 5 days was C$ 437 on WestJet (15 Oct-25 Oct).