Cheap flights from Harlingen, Texas to Los Angeles from $224
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 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Harlingen, Texas to Los Angeles
Cheap round-trip flights
Cheap one-way flights
Southwest flights from Harlingen, Texas to Ontario
Our best Southwest deals on Harlingen, Texas to Ontario flight tickets
United Airlines flights from Harlingen, Texas to Ontario
Our best United Airlines deals on Harlingen, Texas to Ontario flight tickets
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 day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Sunday when prices can be found for as low as $270. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Harlingen, Texas to Ontario for around $400.
What is the cheapest time of day to depart on your flight to Ontario?
In the morning is the cheapest time of day to fly from Harlingen, Texas to Ontario when you can find flight prices for as low as $320. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $385 on average. Flights to Ontario from Harlingen, Texas in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest airline that flies from Harlingen Valley Intl to Ontario?
American Airlines, United Airlines, and Southwest are the most popular carriers operating from Harlingen Valley Intl to Ontario
What airlines fly to Ontario?
American Airlines, United Airlines and Delta 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 60% 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
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
How far is Harlingen Valley Intl to Ontario by plane?
There are 1306.7 mi between Harlingen Valley Intl and Ontario. 5h 55m 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?
As of June 2025, there are 2 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Harlingen, Texas to Ontario is American Airlines (52% of total bookings). The next most popular airline is Southwest (48%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $224 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $269 | Free Cancellation | Rating 8.0 4,279 reviews |
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.