ONT - MDT

$351 Find Cheap Flights from Ontario to Harrisburg - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Harrisburg departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$351
Typical prices: $484-$558
Delta
Sat 9/26Wed 9/30
ONT - MDT • 1 stop
Cheapest one-way
$428
United Airlines
Mon 9/7
ONT - MDT • 1 stop
Top airlines
Delta
Cheapest • from $351 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Harrisburg. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $483 (round-trip)
Chicago (ORD)
Shortest trip • 6h 55m (one-way)
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 100% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Harrisburg!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Harrisburg (ONT-MDT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Harrisburg that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Harrisburg

Sat, Sep 26 - Wed, Sep 30
Delta Logo
12:17 pm - 11:40 pm
ONT
-
MDT
8h 23m
1 stop
Delta Logo
6:00 am - 11:07 am
MDT
-
ONT
8h 07m
1 stop
$351Delta
Mon, Jul 20 - Thu, Aug 20
American Airlines Logo
10:10 pm - 11:37 am
ONT
-
MDT
10h 27m
1 stop
American Airlines Logo
2:45 pm - 10:59 pm
MDT
-
ONT
11h 14m
2 stops
$374American Airlines
Mon, Jul 20 - Thu, Aug 20
American Airlines Logo
11:59 pm - 2:00 pm
ONT
-
MDT
11h 01m
2 stops
American Airlines Logo
2:45 pm - 10:59 pm
MDT
-
ONT
11h 14m
2 stops
$379American Airlines
Tue, Sep 22 - Wed, Sep 30
Delta Logo
12:17 pm - 11:40 pm
ONT
-
MDT
8h 23m
1 stop
Delta Logo
6:00 am - 11:07 am
MDT
-
ONT
8h 07m
1 stop
$385Delta
Thu, Aug 27 - Sun, Aug 30
United Airlines Logo
7:13 pm - 1:32 pm
ONT
-
MDT
15h 19m
2 stops
United Airlines Logo
5:54 pm - 10:35 pm
MDT
-
ONT
7h 41m
1 stop
$387United Airlines
Tue, Jul 21 - Thu, Aug 20
Delta Logo
10:00 pm - 10:56 am
ONT
-
MDT
9h 56m
1 stop
Delta Logo
3:03 pm - 9:52 pm
MDT
-
ONT
9h 49m
1 stop
$394Delta
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
12:33 pm - 11:23 pm
ONT
-
MDT
7h 50m
1 stop
American Airlines Logo
7:00 am - 1:31 pm
MDT
-
ONT
9h 31m
1 stop
$402American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:15 am - 6:50 pm
ONT
-
MDT
9h 35m
2 stops
American Airlines Logo
7:00 am - 1:31 pm
MDT
-
ONT
9h 31m
1 stop
$407American Airlines
Mon, Jul 20 - Thu, Aug 20
American Airlines Logo
10:10 pm - 11:37 am
ONT
-
MDT
10h 27m
1 stop
American Airlines Logo
7:00 am - 11:43 am
MDT
-
ONT
7h 43m
1 stop
$409American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:15 am - 6:50 pm
ONT
-
MDT
9h 35m
2 stops
American Airlines Logo
2:23 pm - 10:59 pm
MDT
-
ONT
11h 36m
2 stops
$412American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Harrisburg flights

Get data-powered insights and trends into flights from Ontario to Harrisburg to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Harrisburg?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Harrisburg, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Harrisburg is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are August and June, where the average cost of round-trip tickets is $883 and $740 respectively.

Find deals

Good to know

Cheapest flight$351
Most popular time to fly with an average 10% increase in price.
Flight from Ontario to Harrisburg

When to book flights from Ontario to Harrisburg

Are your dates flexible? Find out the best times to travel from Ontario to Harrisburg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Harrisburg

  • What is the cheapest flight from Ontario to Harrisburg?

    In the last 5 days, the lowest price for a flight from Ontario to Harrisburg was $428 for a one-way ticket and $351 for a round-trip.

  • Do I need a passport to fly between Ontario and Harrisburg?

    A passport is not required to fly from Ontario to Harrisburg.

  • Which aircraft models fly most regularly from Ontario to Harrisburg?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Harrisburg?

    oneworld is the only airline alliance operating flights between Ontario and Harrisburg.

  • How does KAYAK find such low prices on flights from Ontario to Harrisburg?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Harrisburg.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Harrisburg?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harrisburg from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Harrisburg?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harrisburg with an airline and back to Ontario with another airline. Booking your flights between Ontario and MDT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Harrisburg?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harrisburg from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Harrisburg

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Harrisburg. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Harrisburg? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11766 reviews
6.4Food
7.5Boarding
7.2Comfort
7.9Crew
6.8Entertainment
Airline reviews

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

10.0 ExcellentIngrid, May 2026
ONT - DFW
Read more American Airlines reviews

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Cleared standby and gave up my seat. Terrible policy and boarding experience

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight was on time and arrived early. The crew were friendly and helpful.

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

Everything you need to know for your flight from Ontario to Harrisburg

Information on your arrival and departure airports

Ontario (ONT)
Harrisburg (MDT)