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$309+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ONT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(Delta)

Popular in

December

Cheapest in

April

Average price

$538
Provider with most accurate pricing for Harrisburg-Ontario flight deals.
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Provider most trusted by Cheapflights users for Harrisburg-Ontario flights.
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From Harrisburg to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 2025.

This Delta deal was found by Cheapflights users on 10/30. 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 12/106:00 amMDT - ONT
1 stop8h 02mDelta
Sat 1/171:04 pmONT - MDT
1 stop7h 31mDelta
Deal found 10/30$309
This Delta deal was found by Cheapflights users on 10/30. 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 12/106:00 amMDT - ONT
1 stop8h 02mDelta
Wed 1/141:04 pmONT - MDT
1 stop7h 31mDelta
Deal found 10/30$398
This Delta deal was found by Cheapflights users on 10/30. 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.
Sun 12/146:00 amMDT - ONT
1 stop8h 02mDelta
Sat 1/171:04 pmONT - MDT
1 stop7h 31mDelta
Deal found 10/30$399
This Delta deal was found by Cheapflights users on 10/30. 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 12/126:00 amMDT - ONT
1 stop8h 02mDelta
Sat 1/171:04 pmONT - MDT
1 stop7h 31mDelta
Deal found 10/30$404
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Tue 11/255:40 pmMDT - ONT
1 stop7h 51mUnited Airlines
Thu 11/277:00 amONT - MDT
1 stop6h 53mUnited Airlines
Deal found 10/30$409
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 11/2610:25 amMDT - ONT
2 stops15h 26mUnited Airlines
Thu 11/277:00 amONT - MDT
1 stop6h 53mUnited Airlines
Deal found 10/30$414
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/236:30 amMDT - ONT
2 stops14h 04mUnited Airlines
Fri 11/285:05 amONT - MDT
2 stops11h 10mUnited Airlines
Deal found 10/30$419
This Delta deal was found by Cheapflights users on 10/30. 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 12/136:00 amMDT - ONT
2 stops13h 09mDelta
Fri 1/166:00 amONT - MDT
2 stops13h 56mDelta
Deal found 10/30$423
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/1210:25 amMDT - ONT
2 stops14h 24mUnited Airlines
Wed 11/197:00 amONT - MDT
1 stop6h 53mUnited Airlines
Deal found 10/29$454

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 October 30, 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

Wed 12/10

6:00 am-11:02 am

1 stop8h 02m

Ontario

Tue 1/13

1:04 pm-11:35 pm

1 stop7h 31m

$309

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 12/11

6:00 am-11:02 am

1 stop8h 02m

Ontario

Tue 1/13

1:04 pm-11:35 pm

1 stop7h 31m

$309

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Tue 12/16

6:00 am-11:02 am

1 stop8h 02m

Ontario

Tue 1/13

1:04 pm-11:35 pm

1 stop7h 31m

$309

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Fri 12/12

6:00 am-11:02 am

1 stop8h 02m

Ontario

Tue 1/13

1:04 pm-11:35 pm

1 stop7h 31m

$404

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Tue 12/16

6:00 am-11:02 am

1 stop8h 02m

Ontario

Sun 1/18

1:04 pm-11:35 pm

1 stop7h 31m

$404

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Mon 12/15

6:00 am-11:02 am

1 stop8h 02m

Ontario

Tue 1/13

1:04 pm-11:35 pm

1 stop7h 31m

$404

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Wed 3/4

2:07 pm-10:57 pm

2 stops11h 50m

Ontario

Wed 3/11

11:50 pm-9:55 am

1 stop7h 05m

$414

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 2/28

3:35 pm-9:28 pm

1 stop8h 53m

Ontario

Wed 3/4

11:59 pm-2:49 pm

2 stops11h 50m

$414

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 3/7

5:31 pm-10:15 pm

1 stop7h 44m

Ontario

Thu 3/12

7:15 pm-9:28 am

2 stops11h 13m

$414

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Wed 3/4

10:40 am-8:50 pm

2 stops13h 10m

Ontario

Thu 3/12

7:15 pm-9:28 am

2 stops11h 13m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 19 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harrisburg-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Currently, January is the cheapest month in which you can book a flight from Harrisburg to Ontario (average of $73). Flying from Harrisburg to Ontario in December is currently the most expensive (average of $178). 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.

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 October 30, 2025.
See what other customers who have flown with Delta and American 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
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

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
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

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
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

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 $309, Delta can have you in Ontario from Harrisburg in 8h 02m. Harrisburg and Ontario are separated by a distance of 2267 mi.

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

    Flying on Delta is currently your cheapest option to Ontario, with prices starting at $308. Another option worth looking into is American Airlines, starting at $308 round trip. Delta is priced at 27% 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.

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

    Currently, January is the cheapest month in which you can book a flight from Harrisburg to Ontario (average of $73). Flying from Harrisburg to Ontario in December is currently the most expensive (average of $178). 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

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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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$371FlexibilityNo cancel feeOn-time71%

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