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Ontario

$304+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ONT
Jun 17 — Jun 241
Wed 6/17
Wed 6/24
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 May 18, 2026.

This Delta deal was found by Cheapflights users on 5/17. 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 8/66:00 am
MDT
-
ONT
1 stop7h 42m
Delta
Sun 8/910:00 pm
ONT
-
MDT
1 stop10h 08m
Delta
Deal found 5/17$369
This American Airlines deal was found by Cheapflights users on 5/17. 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 7/46:31 am
MDT
-
ONT
1 stop9h 51m
American Airlines
Fri 7/1012:35 pm
ONT
-
MDT
1 stop7h 24m
American Airlines
Deal found 5/17$400
This Delta deal was found by Cheapflights users on 5/16. 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 9/292:56 pm
MDT
-
ONT
1 stop10h 00m
Delta
Sun 10/1110:59 pm
ONT
-
MDT
2 stops9h 54m
Delta
Deal found 5/16$405
This Delta deal was found by Cheapflights users on 5/17. 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 8/66:00 am
MDT
-
ONT
1 stop7h 42m
Delta
Thu 8/1310:00 pm
ONT
-
MDT
1 stop10h 08m
Delta
Deal found 5/17$409
This American Airlines deal was found by Cheapflights users on 5/17. 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 11/126:20 am
MDT
-
ONT
1 stop10h 44m
American Airlines
Tue 11/2411:59 pm
ONT
-
MDT
2 stops11h 55m
American Airlines
Deal found 5/17$443
This Delta deal was found by Cheapflights users on 5/17. 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 8/66:00 am
MDT
-
ONT
1 stop7h 42m
Delta
Mon 8/1010:00 pm
ONT
-
MDT
1 stop10h 08m
Delta
Deal found 5/17$444

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 May 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$369
(Delta)

One-way from

$304
(Delta)

Popular in

March

Cheapest in

September

Average price

$498
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
One-way flight from Harrisburg to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 18, 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 9/29

12:30 pm-10:40 pm

2 stops13h 10m

Ontario

Sun 10/11

10:59 pm-11:36 am

1 stop9h 37m

$430

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 8/6

6:00 am-10:42 am

1 stop7h 42m

Ontario

Mon 8/10

10:00 pm-11:08 am

1 stop10h 08m

$444
Quickest round-trip

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 10/17

5:54 pm-10:26 pm

1 stop7h 32m

Ontario

Wed 10/21

7:00 am-4:52 pm

1 stop6h 52m

$495

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 10/1

5:54 pm-10:26 pm

1 stop7h 32m

Ontario

Tue 10/6

6:32 pm-9:53 am

2 stops12h 21m

$535

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 8/6

10:30 am-9:55 pm

2 stops14h 25m

Ontario

Sat 12/12

6:53 pm-9:55 am

2 stops12h 02m

$583

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 8/6

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 8/8

7:05 am-5:39 pm

1 stop7h 34m

$697

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Thu 5/28

10:30 am-9:55 pm

2 stops14h 25m

Ontario

Sun 5/31

6:30 am-4:54 pm

1 stop7h 24m

$723

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Sat 5/30

5:55 pm-10:51 pm

1 stop7h 56m

Ontario

Sun 6/7

6:05 am-9:29 pm

1 stop12h 24m

$737
Cheapest one-way
Quickest one-way

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Mon 8/3

6:00 am-10:42 am

1 stop7h 42m

$304

HarrisburgOntario

MDT - ONT

MDTONT

Harrisburg

Mon 6/29

5:55 pm-10:51 pm

1 stop7h 56m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

Showing 1-10 of 17 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 May.
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 May 18, 2026.
See what other customers who have flown with United Airlines 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.
United Airlines
7.4
Good
9,737 reviews

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,737 reviews
United Airlines
7.4
Good
9,737 reviews

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.1
Good
11,648 reviews
United Airlines
7.4
Good
9,737 reviews

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 $495, Delta can have you in Ontario from Harrisburg in 7h 32m. 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 $308. Another option worth looking into is United Airlines, starting at $348 round trip. American Airlines is priced at 34% 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 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 May 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$348Average$474FlexibilityNo cancel feeOn-time69%

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