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Cheap flights from Harlingen, Texas to Los Angeles from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to Los Angeles departing on 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Harlingen, Texas to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
11:59 pm - 10:17 am
ONT
-
HRL
8h 18m
1 stop
$257American Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
5:15 am - 12:12 pm
HRL
-
ONT
8h 57m
2 stops
United Airlines Logo
5:45 am - 3:34 pm
ONT
-
HRL
7h 49m
1 stop
$262United Airlines
Sat, Aug 15 - Wed, Aug 19
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
12:19 pm - 10:51 pm
ONT
-
HRL
8h 32m
2 stops
$271American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
12:19 pm - 10:51 pm
ONT
-
HRL
8h 32m
2 stops
$279American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
12:19 pm - 10:51 pm
ONT
-
HRL
8h 32m
2 stops
$280American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
12:19 pm - 10:51 pm
ONT
-
HRL
8h 32m
2 stops
$283American Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
5:18 pm - 9:50 pm
HRL
-
ONT
6h 32m
1 stop
United Airlines Logo
6:05 am - 4:04 pm
ONT
-
HRL
7h 59m
1 stop
$297United Airlines
Tue, Apr 14 - Sat, Apr 18
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
12:19 pm - 10:51 pm
ONT
-
HRL
8h 32m
2 stops
$299American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
7:53 pm - 11:46 pm
HRL
-
ONT
5h 53m
1 stop
American Airlines Logo
12:19 pm - 10:51 pm
ONT
-
HRL
8h 32m
2 stops
$300American Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
2:00 pm - 10:58 pm
HRL
-
ONT
10h 58m
2 stops
United Airlines Logo
5:45 am - 3:34 pm
ONT
-
HRL
7h 49m
1 stop
$302United Airlines
Fri, Aug 14 - Thu, Aug 20

United Airlines flights from Harlingen, Texas to Ontario

Our best United Airlines deals on Harlingen, Texas to Ontario flight tickets
United Airlines
Aug 15
HRL5:15 amHarlingen Valley Intl
8h 57m
2 stops
ONT12:12 pmOntario
Aug 19
ONT5:45 amOntario
7h 49m
1 stop
HRL3:34 pmHarlingen Valley Intl
$262
United Airlines
Apr 14
HRL5:18 pmHarlingen Valley Intl
6h 32m
1 stop
ONT9:50 pmOntario
Apr 18
ONT6:05 amOntario
7h 59m
1 stop
HRL4:04 pmHarlingen Valley Intl
$297
United Airlines
Aug 14
HRL5:16 pmHarlingen Valley Intl
6h 43m
1 stop
ONT9:59 pmOntario
Aug 18
ONT5:00 amOntario
8h 34m
2 stops
HRL3:34 pmHarlingen Valley Intl
$302

American Airlines flights from Harlingen, Texas to Ontario

Our best American Airlines deals on Harlingen, Texas to Ontario flight tickets
American Airlines
Apr 17
HRL7:53 pmHarlingen Valley Intl
5h 53m
1 stop
ONT11:46 pmOntario
Apr 21
ONT11:59 pmOntario
8h 18m
1 stop
HRL10:17 amHarlingen Valley Intl
$257
American Airlines
Apr 17
HRL7:53 pmHarlingen Valley Intl
5h 53m
1 stop
ONT11:46 pmOntario
Apr 21
ONT12:19 pmOntario
8h 32m
2 stops
HRL10:51 pmHarlingen Valley Intl
$271
American Airlines
Apr 17
HRL7:53 pmHarlingen Valley Intl
5h 53m
1 stop
ONT11:46 pmOntario
Apr 21
ONT12:19 pmOntario
8h 32m
2 stops
HRL10:51 pmHarlingen Valley Intl
$279

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas 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, momondo users made 832,500 searches. Data last updated April 4, 2026.
Use the filters below to find and compare flights from Harlingen, Texas to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

11:59 pm-10:17 am

1 stop8h 18m

$257

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Sat 8/15

5:15 am-12:12 pm

2 stops8h 57m

Ontario

Wed 8/19

5:45 am-3:34 pm

1 stop7h 49m

$262

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

12:19 pm-10:51 pm

2 stops8h 32m

$271

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

12:19 pm-10:51 pm

2 stops8h 32m

$279

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

12:19 pm-10:51 pm

2 stops8h 32m

$280

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

12:19 pm-10:51 pm

2 stops8h 32m

$283

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Tue 4/14

5:18 pm-9:50 pm

1 stop6h 32m

Ontario

Sat 4/18

6:05 am-4:04 pm

1 stop7h 59m

$297

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

12:19 pm-10:51 pm

2 stops8h 32m

$299

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

7:53 pm-11:46 pm

1 stop5h 53m

Ontario

Tue 4/21

12:19 pm-10:51 pm

2 stops8h 32m

$300

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 8/14

2:00 pm-10:58 pm

2 stops10h 58m

Ontario

Thu 8/20

5:45 am-3:34 pm

1 stop7h 49m

$302

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Harlingen, Texas to 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

What is the cheapest airline that flies from Harlingen Valley Intl to Ontario?

Southwest and United Airlines are the most popular carriers operating from Harlingen Valley Intl to Ontario

What airlines fly to Ontario?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Ontario from Harlingen, Texas according to our data. American Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Harlingen, Texas to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Harlingen, Texas to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harlingen, Texas to Ontario (HRL to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harlingen, Texas to Ontario

Fastest flight time

6h 32m

Direct flights

None
The fastest flight from Harlingen, Texas to Ontario takes 6h 32m
There are no direct flights from Harlingen, Texas to Ontario. There are no popular flight routes from Harlingen, Texas to Ontario.
Search flight deals

Frequently asked questions about flying from Harlingen, Texas to Ontario

  • How far is Harlingen Valley Intl to Ontario by plane?

    There are 1306.7 mi between Harlingen Valley Intl and Ontario. 6h 32m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to Ontario Airport?

    Prices for flights from Harlingen Valley Intl Airport to Ontario Airport refresh daily.

  • How many operators does momondo search for flights from Harlingen Valley Intl Airport to Ontario Airport?

  • How old do you have to be to fly from Harlingen Valley Intl Airport to Ontario Airport?

    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 Harlingen Valley Intl Airport to Ontario Airport.

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

    The travel and health documents required for your trip to Ontario Airport 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 Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Harlingen, Texas to Ontario?

Best airlines flying from Harlingen, Texas to Ontario

Compare and see reviews for airlines that fly from Harlingen, Texas to Ontario with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $308Free CancellationRating
7.1
11,556 reviews
Search American Airlines flights

Why use momondo?

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

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

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

Yes. All flights to Ontario from Harlingen on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Harlingen 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 Harlingen to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Harlingen to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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