Title: Cheap Flights from Ontario (ONT) to Harlingen (HRL) - Expedia.ca ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Ontario (ONT) to Harlingen (HRL) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Valley Intl. Airport (HRL) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ONT,to:HRL,departure:11/01/2026TANYT&leg2=from:HRL,to:ONT,departure:18/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ONT,to:HRL,departure:11/01/2026TANYT&leg2=from:HRL,to:ONT,departure:18/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:ONT,to:HRL,departure:11/01/2026TANYT&leg2=from:HRL,to:ONT,departure:18/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from Ontario (ONT) to Harlingen (HRL) ### September is typically the cheapest month to fly From CA $292 - CA $584 per traveller. __Flight from Ontario to Harlingen (ONT - HRL) route information__ | Origin airport | Los Angeles - Ontario Intl. | | ------------------- | --------------------------- | | Destination airport | Valley Intl. | | Distance | 2087 km | ## Los Angeles to Harlingen Flights **The easy way to book your flights from Ontario to Harlingen** With Expedia, it’s simple to find and book flights to Harlingen from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Valley Intl., too. Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to Harlingen today, tomorrow, or this week. **Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to Valley Intl., HRL** Sort your search results by price to find great deals on your flight from Ontario to Harlingen—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Harlingen from Ontario currently is just rising to . Here are more money-saving tips: - Fly in when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Harlingen - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! **Reasons to choose Expedia for your flight to Harlingen from Ontario** Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Harlingen with Expedia today. ## Frequently asked questions ### How much is a flight from ONT to Valley Intl. Airport (HRL)? ### Do I need to pay a cancellation fee if I cancel my flight from ONT to Valley Intl. Airport? ### How do I find cheap flights from ONT to Valley Intl. Airport that have flexible change policies? ### How many hours is the flight from Los Angeles - Ontario Intl. Airport (ONT) to Valley Intl. Airport (HRL)? ### How far is the flight from Ontario Airport to HRL? ### Which airlines fly direct from ONT to Valley Intl. Airport (HRL)? ### Are Los Angeles - Ontario Intl. Airport (ONT) to Valley Intl. Airport (HRL) flight tickets cheaper when they're purchased at the last minute? \*Available to Expedia members.