What is the cheapest airline that flies from Ontario to Ontario?

Delta and United Airlines are the most popular carriers operating from Ontario to Ontario

What airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from Ontario according to our data. Air Canada is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 8 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Ontario?

Prices for flights from Ontario Airport to Ontario are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario Airport to Ontario?

As of September 2026, there are 4 operators available to choose from for flights from Ontario Airport to Ontario.

How old do you have to be to fly from Ontario Airport to Ontario?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$152 Cheap Flights from Ontario to Ontario in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:35 pm - 12:55 amONT Ontario-YYZ Toronto Pearson Intl

25h 20m2 stops Las Vegas Harry Reid Intl Calgary

8:30 pm - 11:16 amYYZ Toronto Pearson Intl-ONT Ontario

17h 46m1 stop Las Vegas Harry Reid Intl

$332Multiple Airlines

Thu, Oct 29 - Thu, Nov 5

2:23 pm - 6:00 amONT Ontario-YYZ Toronto Pearson Intl

12h 37m2 stops Las Vegas Harry Reid Intl Calgary

7:00 am - 4:21 pmYYZ Toronto Pearson Intl-ONT Ontario

12h 21m1 stop Las Vegas Harry Reid Intl

$335Multiple Airlines

Thu, Oct 29 - Thu, Nov 5

1:35 pm - 3:36 pmONT Ontario-YYZ Toronto Pearson Intl

23h 01m3 stops Salt Lake City Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

7:26 pm - 11:06 amYYZ Toronto Pearson Intl-ONT Ontario

18h 40m2 stops Chicago O'Hare Intl Atlanta Hartsfield-Jackson

$478Air Canada

Fri, Oct 30 - Fri, Nov 6

7:00 am - 11:29 pmONT Ontario-YYZ Toronto Pearson Intl

13h 29m2 stops Dallas/Fort Worth Chicago O'Hare Intl

7:09 am - 6:10 pmYYZ Toronto Pearson Intl-ONT Ontario

14h 01m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$549American Airlines

Sat, Oct 31 - Sat, Nov 7

7:00 am - 11:29 pmONT Ontario-YYZ Toronto Pearson Intl

13h 29m2 stops Dallas/Fort Worth Chicago O'Hare Intl

7:09 am - 6:10 pmYYZ Toronto Pearson Intl-ONT Ontario

14h 01m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$549American Airlines

Tue, Oct 27 - Tue, Nov 3

12:00 pm - 11:51 pmONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

8h 51m1 stop Atlanta Hartsfield-Jackson

4:55 pm - 11:48 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

9h 53m2 stops Detroit Metropolitan Wayne County Salt Lake City

$563Delta

Wed, Jan 27 - Mon, Feb 1

7:00 am - 11:35 pmONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

13h 35m2 stops Seattle/Tacoma Intl Minneapolis St Paul

4:55 pm - 11:48 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

9h 53m2 stops Detroit Metropolitan Wayne County Salt Lake City

$568Delta

Wed, Jan 27 - Mon, Feb 1

6:32 pm - 8:16 amONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

10h 44m1 stop San Francisco

8:15 am - 8:58 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

15h 43m1 stop Denver Intl

$573Air Canada

Thu, Oct 1 - Wed, Oct 7

1:40 pm - 2:25 pmONT Ontario-YYZ Toronto Pearson Intl

21h 45m2 stops Denver Intl Washington, D.C. Dulles Intl

10:53 am - 6:49 pmYYZ Toronto Pearson Intl-ONT Ontario

10h 56m1 stop Chicago O'Hare Intl

$653United Airlines

Wed, Dec 2 - Sat, Dec 5

1:40 pm - 2:25 pmONT Ontario-YYZ Toronto Pearson Intl

21h 45m2 stops Denver Intl Washington, D.C. Dulles Intl

10:53 am - 9:11 pmYYZ Toronto Pearson Intl-ONT Ontario

13h 18m2 stops Chicago O'Hare Intl Denver Intl

$659United Airlines

Wed, Dec 2 - Sat, Dec 5

Cheap last minute flights

Enter your travel dates to find the best prices.

12:07 pm - 9:25 pmONT Ontario-YYZ Toronto Pearson Intl

30h 18m1 stop San Francisco

4:45 pm - 11:47 pmYYZ Toronto Pearson Intl-ONT Ontario

34h 02m2 stops Nashville Intl Denver Intl

$630Multiple Airlines

Sun, Sep 20 - Wed, Sep 23

12:07 pm - 9:25 pmONT Ontario-YYZ Toronto Pearson Intl

30h 18m1 stop San Francisco

4:45 pm - 9:09 amYYZ Toronto Pearson Intl-ONT Ontario

43h 24m2 stops Nashville Intl Las Vegas Harry Reid Intl

$640Multiple Airlines

Sun, Sep 20 - Sun, Sep 27

12:19 pm - 11:50 pmONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

8h 31m1 stop Atlanta Hartsfield-Jackson

9:30 am - 8:24 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

13h 54m2 stops New York LaGuardia Atlanta Hartsfield-Jackson

$680Delta

Wed, Sep 23 - Tue, Sep 29

6:00 am - 11:44 pmONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

14h 44m2 stops Seattle/Tacoma Intl Minneapolis St Paul

9:30 am - 8:24 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

13h 54m2 stops New York LaGuardia Atlanta Hartsfield-Jackson

$685Delta

Wed, Sep 23 - Tue, Sep 29

6:08 am - 4:10 pmONT Ontario-YYZ Toronto Pearson Intl

7h 02m1 stop San Francisco

8:55 am - 12:46 pmYYZ Toronto Pearson Intl-ONT Ontario

6h 51m1 stop Denver Intl

$755Air Canada

Sat, Sep 19 - Sat, Sep 26

7:00 am - 5:30 pmONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

7h 30m1 stop Chicago O'Hare Intl

4:55 pm - 10:49 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

8h 54m1 stop Chicago O'Hare Intl

$770United Airlines

Sat, Sep 19 - Wed, Sep 30

6:08 am - 4:14 pmONT Ontario-YYZ Toronto Pearson Intl

7h 06m1 stop San Francisco

6:30 am - 12:18 pmYYZ Toronto Pearson Intl-ONT Ontario

8h 48m1 stop San Francisco

$772United Airlines

Tue, Sep 22 - Sun, Sep 27

9:01 am - 7:40 pmONT Ontario-YYZ Toronto Pearson Intl

7h 39m1 stop San Francisco

4:18 pm - 8:58 pmYYZ Toronto Pearson Intl-ONT Ontario

7h 40m1 stop Denver Intl

$785Air Canada

Wed, Sep 23 - Tue, Sep 29

1:04 pm - 11:44 amONT Ontario-YUL Montreal Pierre Elliott Trudeau Intl

19h 40m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

3:45 pm - 10:37 pmYUL Montreal Pierre Elliott Trudeau Intl-ONT Ontario

9h 52m1 stop Dallas/Fort Worth

$812American Airlines

Mon, Sep 21 - Wed, Sep 23

7:11 pm - 12:35 pmONT Ontario-YYZ Toronto Pearson Intl

14h 24m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

10:57 am - 8:09 pmYYZ Toronto Pearson Intl-ONT Ontario

12h 12m2 stops New York LaGuardia Dallas/Fort Worth

$843American Airlines

Sun, Sep 20 - Wed, Sep 23

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American Airlines flights from Ontario to Region of Ontario

Our best American Airlines deals on Ontario to Region of Ontario flight tickets

American Airlines

Jan 5

ONT7:36 pmOntario

12h 50m

2 stops

YUL11:26 amMontreal Pierre Elliott Trudeau Intl

Jan 10

YUL12:06 pmMontreal Pierre Elliott Trudeau Intl

12h 53m

2 stops

ONT9:59 pmOntario

$568

American Airlines

Sep 30

ONT7:20 amOntario

7h 00m

1 stop

YYZ5:20 pmToronto Pearson Intl

Oct 6

YYZ6:46 amToronto Pearson Intl

8h 07m

1 stop

ONT11:53 amOntario

$574

American Airlines

Oct 16

ONT11:59 pmOntario

12h 28m

2 stops

YUL3:27 pmMontreal Pierre Elliott Trudeau Intl

Oct 20

YUL7:26 amMontreal Pierre Elliott Trudeau Intl

14h 17m

2 stops

ONT6:43 pmOntario

$587

Alaska Airlines flights from Ontario to Region of Ontario

Our best Alaska Airlines deals on Ontario to Region of Ontario flight tickets

Alaska Airlines

Sep 28

ONT4:50 pmOntario

19h 55m

2 stops

YYZ3:45 pmToronto Pearson Intl

Oct 2

YYZ4:55 pmToronto Pearson Intl

26h 07m

2 stops

ONT4:02 pmOntario

$626

Alaska Airlines

Sep 28

ONT7:59 pmOntario

16h 46m

1 stop

YYZ3:45 pmToronto Pearson Intl

Sep 30

YYZ4:55 pmToronto Pearson Intl

21h 21m

1 stop

ONT11:16 amOntario

$653

Alaska Airlines

Sep 28

ONT4:50 pmOntario

19h 55m

2 stops

YYZ3:45 pmToronto Pearson Intl

Sep 30

YYZ4:55 pmToronto Pearson Intl

21h 21m

1 stop

ONT11:16 amOntario

$659

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Thu 10/29

8:35 pm-12:55 am

2 stops25h 20m

Toronto Pearson Intl

Thu 11/5

8:30 pm-11:16 am

1 stop17h 46m

$332

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Thu 10/29

2:23 pm-6:00 am

2 stops12h 37m

Toronto Pearson Intl

Thu 11/5

7:00 am-4:21 pm

1 stop12h 21m

$335

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Fri 10/30

1:35 pm-3:36 pm

3 stops23h 01m

Toronto Pearson Intl

Fri 11/6

7:26 pm-11:06 am

2 stops18h 40m

$478

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Sat 10/31

7:00 am-11:29 pm

2 stops13h 29m

Toronto Pearson Intl

Sat 11/7

7:09 am-6:10 pm

2 stops14h 01m

$549

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Tue 10/27

7:00 am-11:29 pm

2 stops13h 29m

Toronto Pearson Intl

Tue 11/3

7:09 am-6:10 pm

2 stops14h 01m

$549

Quickest round-trip

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Wed 1/27

12:00 pm-11:51 pm

1 stop8h 51m

Montreal Pierre Elliott Trudeau Intl

Mon 2/1

4:55 pm-11:48 pm

2 stops9h 53m

$563

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Wed 1/27

7:00 am-11:35 pm

2 stops13h 35m

Montreal Pierre Elliott Trudeau Intl

Mon 2/1

4:55 pm-11:48 pm

2 stops9h 53m

$568

OntarioMontreal

ONT Ontario - YUL Montreal Pierre Elliott Trudeau Intl

ONTYUL

Ontario

Thu 10/1

6:32 pm-8:16 am

1 stop10h 44m

Montreal Pierre Elliott Trudeau Intl

Wed 10/7

8:15 am-8:58 pm

1 stop15h 43m

$573

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Wed 12/2

1:40 pm-2:25 pm

2 stops21h 45m

Toronto Pearson Intl

Sat 12/5

10:53 am-6:49 pm

1 stop10h 56m

$653

OntarioToronto

ONT Ontario - YYZ Toronto Pearson Intl

ONTYYZ

Ontario

Wed 12/2

1:40 pm-2:25 pm

2 stops21h 45m

Toronto Pearson Intl

Sat 12/5

10:53 am-9:11 pm

2 stops13h 18m

$659

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Region of Ontario?

The month of April is, on average, the cheapest month to fly to Region of Ontario from Ontario, with most prices found around $486. If you aren’t able to travel during the month of April, then book flights to Region of Ontario from Ontario during May instead. Flights to Region of Ontario in May, while not as cheap as those in April, still average around $491.

Can stopping save me money on Ontario to Region of Ontario flights?

You could potentially save up to 15% on your flight if you consider stops on a Ontario to Region of Ontario flight.

Cheap Ontario to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Region of Ontario

Best Price Found	$152
Fastest flight time	7h 04m
Direct flights	None

The best one-way flight to Region of Ontario from Ontario in the past 72 hours is $152. The best round-trip flight deal from Ontario to Region of Ontario found on momondo in the last 72 hours is $332.

The fastest flight from Ontario to Region of Ontario takes 7h 04m

There are no direct flights from Ontario to Region of Ontario. There are no popular flight routes from Ontario to Region of Ontario.

Search flight deals

Frequently asked questions about flying from Ontario to Ontario

When did momondo last update prices for flights from Ontario Airport to Ontario?
Prices for flights from Ontario Airport to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Ontario?
As of September 2026, there are 4 operators available to choose from for flights from Ontario Airport to Ontario.
How old do you have to be to fly from Ontario Airport to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Region of Ontario

Compare and see reviews for airlines that fly from Ontario to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $142	Free Cancellation	Rating 7.8 8,581 reviews	Search Delta flights
Air Canada	PriceFrom $313	Free Cancellation	Rating 7.1 11,644 reviews	Search Air Canada flights
United Airlines	PriceFrom $320	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
American Airlines	PriceFrom $436	Free Cancellation	Rating 7.1 12,075 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Ontario with flexible booking policies on momondo?

All flight searches from Ontario to Ontario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Ontario?

momondo helps you find the best flight between Ontario and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.