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$332+ Cheap flights from Harlingen, TX (HRL) to Ontario

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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — YYZ
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Harlingen to Ontario

Cheapest flights from Harlingen to Ontario
Explore the most affordable flight options available from Harlingen to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:18 pm
HRL
-
YUL
2 stops16h 22m
United Airlines
Wed 4/294:55 pm
YUL
-
HRL
2 stops19h 28m
United Airlines
Deal found 2/3$632
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:22 pm
HRL
-
YYZ
2 stops22h 17m
United Airlines
Wed 2/256:45 am
YYZ
-
HRL
2 stops16h 14m
United Airlines
Deal found 2/3$660
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:45 am
HRL
-
YYZ
1 stop11h 08m
American Airlines
Mon 8/105:19 pm
YYZ
-
HRL
1 stop17h 13m
American Airlines
Deal found 2/5$715
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/208:06 pm
HRL
-
YYZ
1 stop19h 13m
American Airlines
Fri 3/275:14 pm
YYZ
-
HRL
1 stop17h 58m
American Airlines
Deal found 2/3$734
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:04 pm
HRL
-
YUL
1 stop6h 36m
Delta
Sun 3/227:00 am
YUL
-
HRL
1 stop9h 09m
Delta
Deal found 2/3$734
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/229:20 am
HRL
-
YYZ
1 stop12h 17m
United Airlines
Sun 3/296:10 am
YYZ
-
HRL
1 stop6h 13m
United Airlines
Deal found 2/4$771
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:04 pm
HRL
-
YUL
1 stop6h 36m
Delta
Mon 3/236:00 am
YUL
-
HRL
2 stops10h 09m
Delta
Deal found 2/3$782
This United Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:20 am
HRL
-
YTZ
2 stops25h 19m
United Airlines
Wed 4/292:20 pm
YTZ
-
HRL
2 stops22h 03m
United Airlines
Deal found 2/4$788
This Air Canada deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
HRL
-
YUL
1 stop8h 42m
Air Canada
Wed 4/2912:15 pm
YUL
-
HRL
2 stops10h 44m
Air Canada
Deal found 2/4$823
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:15 am
HRL
-
YTZ
2 stops13h 54m
United Airlines
Mon 8/107:20 pm
YTZ
-
HRL
2 stops18h 54m
United Airlines
Deal found 2/5$839
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/128:06 pm
HRL
-
YUL
2 stops15h 18m
American Airlines
Mon 2/163:45 pm
YUL
-
HRL
2 stops19h 27m
American Airlines
Deal found 2/2$854
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:25 pm
HRL
-
YUL
2 stops18h 21m
United Airlines
Mon 3/238:25 am
YUL
-
HRL
2 stops12h 31m
United Airlines
Deal found 2/3$862

Find flight deals from Harlingen to Ontario

Keep the following information in mind while searching for Harlingen to Ontario flight deals. Data was last updated February 5, 2026.

Round-trip from

$632
(United Airlines)

One-way from

$332
(American Airlines)
From Harlingen Valley Intl to Ontario
Search Deals
One-way flight from Harlingen Valley Intl to Ontario
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Harlingen to Ontario that are best for you.

Fly from

Harlingen

Fly to

Ontario

Route

Depart

Return

Price

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Tue 4/28

5:18 pm-10:40 am

2 stops16h 22m

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

4:55 pm-11:23 am

2 stops19h 28m

$632

HarlingenToronto

HRL - YYZ

HRLYYZ

Harlingen Valley Intl

Mon 2/23

5:22 pm-4:39 pm

2 stops22h 17m

Toronto Pearson Intl

Wed 2/25

6:45 am-9:59 pm

2 stops16h 14m

$660

HarlingenToronto

HRL - YYZ

HRLYYZ

Harlingen Valley Intl

Mon 8/3

10:45 am-10:53 pm

1 stop11h 08m

Toronto Pearson Intl

Mon 8/10

5:19 pm-9:32 am

1 stop17h 13m

$715

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Wed 3/18

4:04 pm-11:40 pm

1 stop6h 36m

Montreal Pierre Elliott Trudeau Intl

Sun 3/22

7:00 am-3:09 pm

1 stop9h 09m

$734

HarlingenToronto

HRL - YYZ

HRLYYZ

Harlingen Valley Intl

Fri 3/20

8:06 pm-4:19 pm

1 stop19h 13m

Toronto Pearson Intl

Fri 3/27

5:14 pm-10:12 am

1 stop17h 58m

$734

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Tue 3/17

4:04 pm-11:40 pm

1 stop6h 36m

Montreal Pierre Elliott Trudeau Intl

Sun 3/22

7:00 am-3:09 pm

1 stop9h 09m

$734

HarlingenToronto

HRL - YYZ

HRLYYZ

Harlingen Valley Intl

Mon 8/3

5:16 pm-9:53 am

2 stops15h 37m

Toronto Pearson Intl

Mon 8/10

9:00 pm-3:34 pm

2 stops19h 34m

$749

HarlingenToronto

HRL - YYZ

HRLYYZ

Harlingen Valley Intl

Sun 3/22

9:20 am-10:37 pm

1 stop12h 17m

Toronto Pearson Intl

Sun 3/29

6:10 am-11:23 am

1 stop6h 13m

$771

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Tue 3/17

4:04 pm-11:40 pm

1 stop6h 36m

Montreal Pierre Elliott Trudeau Intl

Mon 3/23

6:00 am-3:09 pm

2 stops10h 09m

$782

HarlingenToronto

HRL - YTZ

HRLYTZ

Harlingen Valley Intl

Tue 4/28

12:05 pm-11:39 am

2 stops22h 34m

Toronto Island

Wed 4/29

2:20 pm-11:23 am

2 stops22h 03m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 14 results
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Best time to book a flight from Harlingen to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Harlingen 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 from Harlingen to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harlingen to Ontario?

    Most people fly from Harlingen Valley Intl (HRL) if they book a flight from Harlingen to Ontario. Harlingen Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.

  • How long is the flight from Harlingen, Texas to Region of Ontario?

    A quick flight from Harlingen, Texas to Region of Ontario can take about 6h 36m. United Airlines provides one of the quickest options available for as low as $734. Airlines will cover a distance of 1871 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Harlingen, Texas to Region of Ontario?

    When deciding which route to take from Harlingen, Texas to Region of Ontario consider Harlingen Valley Intl - Montreal Pierre Elliott Trudeau Intl, Harlingen Valley Intl - Toronto Pearson Intl or Harlingen Valley Intl - Toronto Island as they are the most popular.

  • Can I find deals for flights from Harlingen to Ontario that include hotel bookings?

    Yes. In addition to deals on Harlingen to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Ontario?

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

  • Can I find deals for business class flights from Harlingen to Ontario?

    Yes. Cheapflights offers flight deals from Harlingen to Ontario 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

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