HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$242+ Cheap flights from Harrisburg to Ontario (MDT - ONT)

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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ONT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harrisburg to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Harrisburg to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$309
(American Airlines)

One-way from

$242
(Delta)

Popular in

October

Cheapest in

April

Average price

$486
From Harrisburg to Ontario
Search Deals
One-way flight from Harrisburg to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Harrisburg to Ontario

Cheapest flights from Harrisburg to Ontario
Explore the most affordable flight options available from Harrisburg to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/3. 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.
Tue 8/192:49 pmMDT - ONT
1 stop9h 21mAmerican Airlines
Fri 9/512:45 pmONT - MDT
1 stop7h 27mAmerican Airlines
Deal found 7/3$309
This Frontier deal was found by Cheapflights users on 7/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1211:23 amMDT - ONT
2 stops15h 27mFrontier
Wed 7/167:00 amONT - MDT
2 stops24h 08mFrontier
Deal found 7/2$397
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/410:50 amMDT - ONT
1 stop10h 16mUnited Airlines
Sat 10/117:02 amONT - MDT
1 stop6h 50mUnited Airlines
Deal found 7/2$409
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:31 amMDT - ONT
2 stops15h 32mAlaska Airlines
Sun 10/55:45 pmONT - MDT
2 stops14h 25mAlaska Airlines
Deal found 7/3$719
This Delta deal was found by Cheapflights users on 7/3. 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.
Sat 12/2712:21 pmMDT - ONT
1 stop10h 17mDelta
Fri 1/211:56 amONT - MDT
1 stop8h 43mDelta
Deal found 7/3$727

Cheapflights Fare Finder

Customize your flight search to find flights from Harrisburg 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 July 3, 2025.
Use the filters below to find and compare flights from Harrisburg to Ontario that are best for you.

Fly from

Harrisburg

Fly to

Ontario

Route

Depart

Return

Price

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Tue 8/19

2:49 pm-9:10 pm

1 stop9h 21m

Ontario

Fri 9/5

12:45 pm-11:12 pm

1 stop7h 27m

$309

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 10/4

10:50 am-6:06 pm

1 stop10h 16m

Ontario

Sat 10/11

7:02 am-4:52 pm

1 stop6h 50m

$409

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Fri 10/3

11:31 am-12:03 am

2 stops15h 32m

Ontario

Sun 10/5

5:45 pm-11:10 am

2 stops14h 25m

$719

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 12/27

12:21 pm-7:38 pm

1 stop10h 17m

Ontario

Fri 1/2

11:56 am-11:39 pm

1 stop8h 43m

$727

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 10/25

12:35 pm-10:42 pm

2 stops13h 07m

$242

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 7/31

3:22 pm-9:38 pm

1 stop9h 16m

$255

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Tue 8/12

5:36 pm-10:11 pm

1 stop7h 35m

$350

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Mon 8/11

5:00 am-2:46 pm

2 stops12h 46m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from Harrisburg to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Harrisburg 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 Harrisburg to Ontario

What is the cheapest month to book a flight from Harrisburg to Ontario?

Currently, August is the cheapest month in which you can book a flight from Harrisburg to Ontario (average of $246). Flying from Harrisburg to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Harrisburg to Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated July 3, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Harrisburg to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What are the cheapest airlines flying from Harrisburg to Ontario round-trip?

    Flying on American Airlines is currently your cheapest option to Ontario, with prices starting at $309. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $409 and $719, respectively. American Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Harrisburg to Ontario one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $242. American Airlines flights start at $255 while deals on United Airlines start at $350 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Harrisburg 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.

  • What is the cheapest month to book a flight from Harrisburg to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Harrisburg to Ontario (average of $246). Flying from Harrisburg to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Harrisburg to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Newark to Las Vegas flights
Newark to San Francisco flights
LaGuardia to Los Angeles flights
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Dulles Intl to Las Vegas flights
LaGuardia to Las Vegas flights
John F Kennedy Intl to Ontario flights
John F Kennedy Intl to San Diego flights
LaGuardia to San Francisco flights
Dulles Intl to San Francisco flights
Philadelphia to Las Vegas flights
Reagan-National to San Francisco flights
Newark to San Diego flights
Newark to Burbank flights
Reagan-National to Las Vegas flights
Newark to Santa Ana flights
Newark to Ontario flights
LaGuardia to Burbank flights
Philadelphia to Los Angeles flights
Newark to Oakland flights
Newark to San Jose flights
Philadelphia to San Francisco flights
LaGuardia to Santa Ana flights
Dulles Intl to San Diego flights
Dulles Intl to Ontario flights
LaGuardia to Ontario flights
Reagan-National to San Diego flights
LaGuardia to San Diego flights
LaGuardia to Oakland flights
Pittsburgh to Las Vegas flights
John F Kennedy Intl to Santa Ana flights
Philadelphia to San Diego flights
Dulles Intl to Sacramento flights
Reagan-National to Ontario flights
John F Kennedy Intl to San Jose flights
Philadelphia to Ontario flights
John F Kennedy Intl to Reno flights
John F Kennedy Intl to Burbank flights
Reagan-National to Santa Ana flights
John F Kennedy Intl to Oakland flights
Pittsburgh to San Francisco flights
Pittsburgh to Los Angeles flights
Newark to Reno flights
Newark to Sacramento flights
LaGuardia to San Jose flights

Top 2 airlines flying from Harrisburg to Ontario

Discover the top 2 airlines that operate flights from Harrisburg to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$408FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$314Average$443FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.