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$123+ Cheap flights from Ontario to Harrisburg (ONT - MDT)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MDT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Ontario to Harrisburg

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Harrisburg (MDT). 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 August 14, 2025.

Round-trip from

$279
(American Airlines)

One-way from

$123
(Frontier)

Popular in

March

Cheapest in

January

Average price

$408
From Ontario to Harrisburg
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One-way flight from Ontario to Harrisburg
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Highest demand for flights based on searches. 17% potential increase in price ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Ontario to Harrisburg

Cheapest flights from Ontario to Harrisburg
Explore the most affordable flight options available from Ontario to Harrisburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 8/3012:47 pmONT - MDT
1 stop7h 24mAmerican Airlines
Sat 9/136:23 amMDT - ONT
1 stop10h 31mAmerican Airlines
Deal found 8/13$279
This Delta deal was found by Cheapflights users on 8/13. 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 8/307:05 amONT - MDT
2 stops13h 14mDelta
Sat 9/136:00 amMDT - ONT
1 stop7h 42mDelta
Deal found 8/13$308
This Delta deal was found by Cheapflights users on 8/14. 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.
Thu 9/411:45 amONT - MDT
1 stop7h 39mDelta
Tue 9/166:00 amMDT - ONT
1 stop7h 42mDelta
Deal found 8/14$309
This Delta deal was found by Cheapflights users on 8/13. 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.
Wed 10/2911:36 amONT - MDT
1 stop8h 32mDelta
Sat 11/16:00 amMDT - ONT
1 stop7h 26mDelta
Deal found 8/13$334
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/910:35 pmONT - MDT
1 stop8h 38mAmerican Airlines
Mon 9/154:45 pmMDT - ONT
1 stop7h 39mAmerican Airlines
Deal found 8/12$384
This Delta deal was found by Cheapflights users on 8/13. 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 12/612:00 pmONT - MDT
1 stop8h 38mDelta
Wed 12/175:58 pmMDT - ONT
1 stop7h 43mDelta
Deal found 8/13$398

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Harrisburg 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 August 14, 2025.
Use the filters below to find and compare flights from Ontario to Harrisburg that are best for you.

Fly from

Ontario

Fly to

Harrisburg

Route

Depart

Return

Price

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Sat 8/30

11:59 pm-1:13 pm

1 stop10h 14m

Harrisburg

Sat 9/13

6:23 am-1:54 pm

1 stop10h 31m

$279

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Sat 8/30

7:05 am-11:19 pm

2 stops13h 14m

Harrisburg

Sat 9/13

6:00 am-10:42 am

1 stop7h 42m

$308

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Thu 9/4

11:45 am-10:24 pm

1 stop7h 39m

Harrisburg

Tue 9/16

6:00 am-10:42 am

1 stop7h 42m

$309

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Wed 10/29

11:36 am-11:08 pm

1 stop8h 32m

Harrisburg

Sat 11/1

6:00 am-10:26 am

1 stop7h 26m

$334

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Tue 9/9

10:35 pm-10:13 am

1 stop8h 38m

Harrisburg

Mon 9/15

4:45 pm-9:24 pm

1 stop7h 39m

$384

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Thu 9/4

12:18 pm-10:12 am

2 stops18h 54m

$123

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Fri 9/5

12:13 pm-11:27 am

2 stops44h 14m

$191

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Fri 9/26

6:00 am-11:27 am

3 stops50h 27m

$329

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Fri 9/26

12:45 pm-11:12 pm

1 stop7h 27m

$332

OntarioHarrisburg

ONT - MDT

ONTMDT

Ontario

Fri 9/26

10:00 pm-11:40 am

2 stops10h 40m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 15 results
1
2

Best time to book a flight from Ontario to Harrisburg

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Harrisburg (average of $355). Flying from Ontario to Harrisburg in November is currently the most expensive (average of $408). 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.

What is the cheapest time of day to fly from ONT to MDT?

Find hourly flight availability from Ontario to Harrisburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s typically best to fly out from Ontario to Harrisburg at noon. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

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

Reviews of airlines servicing Harrisburg

Get insights into the airlines that provide service to Harrisburg. 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 Harrisburg. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with American Airlines from Ontario to Harrisburg to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Entertainment

6.9

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

Related info for your journey

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

  • What is the cheapest airline to fly from Ontario to Harrisburg round-trip?

    Our cheapest airline available from Ontario to Harrisburg is American Airlines. Our recent data shows that you can find tickets from as low as $314 on this airline. American Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Harrisburg 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 Ontario to Harrisburg?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Harrisburg (average of $355). Flying from Ontario to Harrisburg in November is currently the most expensive (average of $408). 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

Traveling to a place near Harrisburg?

Book flights to Harrisburg if you plan to visit one of these locations
Carlisle
Hershey
Mechanicsburg
Camp Hill

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Alternative routes for Ontario to Harrisburg

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Top airline flying from Ontario to Harrisburg

Discover the top airline that operate flights from Ontario to Harrisburg. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$314Average$480FlexibilityNo cancel feeOn-time71%

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