$135 Cheap Flights from Ontario (ONT) to Harrisburg (MDT)

View $135 flight on Thu, Dec 25, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT)

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Cheap Flights from Ontario to Harrisburg (ONT-MDT)

Prices were available within the past 7 days and start at $135 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Dec 25 - Thu, Jan 8
ONT
Ontario
MDT
Harrisburg
$289 Roundtrip, found 2 hours ago
$289
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, Dec 25 from Ontario to Harrisburg, returning Thu, Jan 8, priced at $289 found 2 hours ago
American Airlines
Thu, Dec 25 - Thu, Jan 8
ONT
Ontario
MDT
Harrisburg
$294 Roundtrip, found 2 hours ago
$294
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, Dec 25 from Ontario to Harrisburg, returning Thu, Jan 8, priced at $294 found 2 hours ago
United
Thu, Dec 25 - Fri, Jan 9
ONT
Ontario
MDT
Harrisburg
$308 Roundtrip, found 2 hours ago
$308
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 25 from Ontario to Harrisburg, returning Fri, Jan 9, priced at $308 found 2 hours ago
Delta
Wed, Sep 24 - Sat, Sep 27
ONT
Ontario
MDT
Harrisburg
$309 Roundtrip, found 3 hours ago
$309
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Sep 24 from Ontario to Harrisburg, returning Sat, Sep 27, priced at $309 found 3 hours ago
United
Thu, Dec 25 - Fri, Jan 9
ONT
Ontario
MDT
Harrisburg
$313 Roundtrip, found 2 hours ago
$313
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 25 from Ontario to Harrisburg, returning Fri, Jan 9, priced at $313 found 2 hours ago
United
Thu, Dec 25 - Fri, Jan 9
ONT
Ontario
MDT
Harrisburg
$314 Roundtrip, found 2 hours ago
$314
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 25 from Ontario to Harrisburg, returning Fri, Jan 9, priced at $314 found 2 hours ago
United
Wed, Sep 24 - Sat, Sep 27
ONT
Ontario
MDT
Harrisburg
$319 Roundtrip, found 3 hours ago
$319
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Sep 24 from Ontario to Harrisburg, returning Sat, Sep 27, priced at $319 found 3 hours ago
United
Sat, Dec 13 - Sat, Jan 10
ONT
Ontario
MDT
Harrisburg
$328 Roundtrip, found 3 days ago
$328
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 13 from Ontario to Harrisburg, returning Sat, Jan 10, priced at $328 found 3 days ago
United
Thu, Dec 25 - Thu, Jan 8
ONT
Ontario
MDT
Harrisburg
$330 Roundtrip, found 2 hours ago
$330
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 25 from Ontario to Harrisburg, returning Thu, Jan 8, priced at $330 found 2 hours ago
Alaska Airlines
Fri, Oct 24 - Thu, Nov 6
ONT
Ontario
MDT
Harrisburg
$554 Roundtrip, found 15 hours ago
$554
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Fri, Oct 24 from Ontario to Harrisburg, returning Thu, Nov 6, priced at $554 found 15 hours ago

Find the cheapest month to fly from Ontario (ONT) to Harrisburg (MDT)

May is typically the cheapest month to fly

From $254 - $1,092 per traveler.

Graph displaying average flight prices per month

Alternative airports near Harrisburg

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lancaster, PA LNS. Average driving time to city center is 48 minutes. Flights from $594
LNS
Lancaster, PA
Average driving time to city center48 min
Flights from $594
Flights from Ontario (ONT) to Harrisburg (MDT)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Harrisburg Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$288
Distance
2268 mi

Ontario to Harrisburg Flights

The cheapest times to fly from Ontario to Harrisburg

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Harrisburg are during the month of December. You can find some of the cheapest flights from Ontario to Harrisburg with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Harrisburg

Sunday is one of the best days to book for cheap flights from Ontario to Harrisburg: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Harrisburg

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Harrisburg in 2025. You can also book with separate airlines for your outbound and return journeys, from $135 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Harrisburg flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Harrisburg airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT) cost?
Secure a cheap one-way flight from $135 or cheap return flight from $289 from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT)?
Planning your trip for December can help you save, as it's the cheapest month for flights between ONT and MDT. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ONT to MDT flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT)?
There aren't any daily direct flights from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from ONT to MDT?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT)?
To land at Harrisburg Intl. Airport (MDT) on schedule, choose a flight that leaves Los Angeles - Ontario Intl. Airport (ONT) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT) last-minute?
Holding off until just before your trip to book your flight from ONT to MDT often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book an ONT to MDT flight and hotel package?
You can save money by booking an ONT to MDT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Harrisburg Intl. Airport (MDT)?
If you booked your ONT to MDT flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.