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Ontario

$351+ Cheap flights from Harrisburg to Ontario (MDT - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ONT
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap 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 23, 2026.

This Delta deal was found by Cheapflights users on 7/19. 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.
Tue 9/16:00 am
MDT
-
ONT
1 stop7h 42m
Delta
Sat 9/512:00 pm
ONT
-
MDT
1 stop8h 10m
Delta
Deal found 7/19$351
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/57:00 am
MDT
-
ONT
1 stop9h 53m
American Airlines
Sat 9/128:25 am
ONT
-
MDT
2 stops12h 28m
American Airlines
Deal found 7/20$356
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Wed 9/27:00 am
MDT
-
ONT
1 stop7h 43m
American Airlines
Thu 9/1012:37 pm
ONT
-
MDT
1 stop7h 10m
American Airlines
Deal found 7/20$360
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Sun 8/165:00 am
MDT
-
ONT
2 stops10h 03m
American Airlines
Sat 9/512:33 pm
ONT
-
MDT
1 stop7h 50m
American Airlines
Deal found 7/19$365
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Sun 8/165:54 pm
MDT
-
ONT
1 stop7h 41m
United Airlines
Sat 9/57:00 am
ONT
-
MDT
1 stop6h 52m
United Airlines
Deal found 7/19$380
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/205:54 pm
MDT
-
ONT
1 stop7h 41m
United Airlines
Thu 8/277:13 pm
ONT
-
MDT
2 stops11h 24m
United Airlines
Deal found 7/21$384
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 11/612:12 pm
MDT
-
ONT
2 stops13h 31m
Delta
Fri 11/135:50 pm
ONT
-
MDT
2 stops15h 03m
Delta
Deal found 7/22$389
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/207:00 am
MDT
-
ONT
1 stop7h 43m
American Airlines
Thu 8/2712:33 pm
ONT
-
MDT
1 stop7h 50m
American Airlines
Deal found 7/21$409
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Fri 9/45:54 pm
MDT
-
ONT
1 stop7h 41m
United Airlines
Fri 9/117:00 am
ONT
-
MDT
1 stop6h 52m
United Airlines
Deal found 7/20$427

Find 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 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$351
(Delta)

Popular in

July

Cheapest in

December

Average price

$803
Provider with most accurate pricing for Harrisburg-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harrisburg-Ontario flights.
Search Deals
From Harrisburg to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 23, 2026.
Use the filters below to find and compare flights from Harrisburg to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Tue 9/1

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 9/5

12:00 pm-11:10 pm

1 stop8h 10m

$351

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Wed 9/2

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 9/5

12:00 pm-11:10 pm

1 stop8h 10m

$351
Quickest round-trip

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sun 8/16

5:54 pm-10:35 pm

1 stop7h 41m

Ontario

Sat 9/5

7:00 am-4:52 pm

1 stop6h 52m

$380

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Wed 9/2

6:30 am-6:16 pm

2 stops14h 46m

Ontario

Sun 9/6

7:00 am-4:52 pm

1 stop6h 52m

$475

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 10/17

6:30 am-11:53 am

1 stop8h 23m

Ontario

Tue 10/20

10:10 pm-9:11 am

1 stop8h 01m

$522

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Tue 8/18

5:54 pm-10:35 pm

1 stop7h 41m

Ontario

Tue 8/25

7:00 am-4:52 pm

1 stop6h 52m

$545

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Fri 8/14

5:54 pm-10:35 pm

1 stop7h 41m

Ontario

Fri 8/21

7:00 am-4:52 pm

1 stop6h 52m

$554

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Wed 7/29

10:30 am-9:55 pm

2 stops14h 25m

Ontario

Wed 8/5

5:00 am-9:29 pm

2 stops13h 29m

$581

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Mon 7/27

10:30 am-9:55 pm

2 stops14h 25m

Ontario

Mon 8/3

5:45 am-11:30 pm

2 stops14h 45m

$667

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 8/15

5:54 pm-10:35 pm

1 stop7h 41m

Ontario

Sun 8/16

7:00 am-4:52 pm

1 stop6h 52m

$668

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Harrisburg to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harrisburg to Ontario in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Harrisburg-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harrisburg-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harrisburg-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harrisburg-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harrisburg-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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 23, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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.
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
10,024 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.1
Good
11,832 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • How long is the flight from Harrisburg to Ontario?

    For as low as $380, Delta can have you in Ontario from Harrisburg in 7h 41m. Harrisburg and Ontario are separated by a distance of 2267 mi. This flight may include one or multiple stops.

  • 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 $318. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $321 and $348, respectively. American Airlines is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • 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.

See more FAQs

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Alternative routes for Harrisburg to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Harrisburg to Ontario

Discover the top 3 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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$318Average$498FlexibilityNo cancel feeOn-time71%
DeltaCheapest$321Average$599FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$348Average$488FlexibilityNo cancel feeOn-time69%

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