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$358+ Cheap flights from Ithaca to Ontario (ITH - 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
ITH — ONT
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Ithaca to Ontario

Cheapest flights from Ithaca to Ontario
Explore the most affordable flight options available from Ithaca to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Delta deal was found by Cheapflights users on 2/1. 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 2/275:29 am
ITH
-
ONT
2 stops18h 36m
Delta
Mon 3/210:20 pm
ONT
-
ITH
2 stops13h 03m
Delta
Deal found 2/1$417
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 3/1610:30 am
ITH
-
ONT
2 stops14h 48m
United Airlines
Mon 3/236:37 pm
ONT
-
ITH
2 stops12h 05m
United Airlines
Deal found 2/1$470
This Delta deal was found by Cheapflights users on 2/1. 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 2/275:29 am
ITH
-
ONT
2 stops18h 36m
Delta
Sun 3/110:20 pm
ONT
-
ITH
2 stops13h 03m
Delta
Deal found 2/1$472
This Delta deal was found by Cheapflights users on 2/1. 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 2/263:03 pm
ITH
-
ONT
2 stops11h 46m
Delta
Mon 3/210:20 pm
ONT
-
ITH
2 stops13h 03m
Delta
Deal found 2/1$504
This Delta deal was found by Cheapflights users on 2/1. 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 2/183:03 pm
ITH
-
ONT
2 stops11h 46m
Delta
Mon 2/2310:20 pm
ONT
-
ITH
2 stops13h 03m
Delta
Deal found 2/1$559
This Delta deal was found by Cheapflights users on 2/1. 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 2/173:03 pm
ITH
-
ONT
2 stops11h 46m
Delta
Sun 2/2210:20 pm
ONT
-
ITH
2 stops13h 03m
Delta
Deal found 2/1$652
This United Airlines deal was found by Cheapflights users on 1/31. 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 2/106:00 am
ITH
-
ONT
2 stops9h 47m
United Airlines
Sat 2/145:00 am
ONT
-
ITH
2 stops15h 42m
United Airlines
Deal found 1/31$662
This United Airlines deal was found by Cheapflights users on 2/2. 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 4/210:30 am
ITH
-
ONT
2 stops13h 06m
United Airlines
Tue 4/147:00 am
ONT
-
ITH
2 stops13h 59m
United Airlines
Deal found 2/2$692
This United Airlines deal was found by Cheapflights users on 1/31. 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 3/197:35 pm
ITH
-
ONT
2 stops30h 22m
United Airlines
Thu 3/261:50 pm
ONT
-
ITH
2 stops16h 52m
United Airlines
Deal found 1/31$747

Find flight deals from Ithaca to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Ithaca (ITH) 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$417
(Delta)

One-way from

$358
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$495
Provider with most accurate pricing for Ithaca Tompkins County-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ithaca Tompkins County-Ontario flights.
Search Deals
From Ithaca Tompkins County to Ontario
Search Deals
One-way flight from Ithaca Tompkins County to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ithaca 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 February 3, 2026.
Use the filters below to find and compare flights from Ithaca to Ontario that are best for you.

Fly from

Ithaca

Fly to

Ontario

Route

Depart

Return

Price

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Fri 2/27

5:29 am-9:05 pm

2 stops18h 36m

Ontario

Mon 3/2

10:20 pm-2:23 pm

2 stops13h 03m

$417

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Tue 4/7

10:30 am-8:36 pm

2 stops13h 06m

Ontario

Wed 4/15

6:49 pm-9:48 am

2 stops11h 59m

$470

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Mon 3/16

10:30 am-10:18 pm

2 stops14h 48m

Ontario

Mon 3/23

6:37 pm-9:42 am

2 stops12h 05m

$470

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Fri 2/27

5:29 am-9:05 pm

2 stops18h 36m

Ontario

Sun 3/1

10:20 pm-2:23 pm

2 stops13h 03m

$472

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 2/26

3:03 pm-11:49 pm

2 stops11h 46m

Ontario

Mon 3/2

10:20 pm-2:23 pm

2 stops13h 03m

$504

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Tue 4/7

10:30 am-8:36 pm

2 stops13h 06m

Ontario

Thu 4/16

6:49 pm-9:48 am

2 stops11h 59m

$559

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Wed 2/18

3:03 pm-11:49 pm

2 stops11h 46m

Ontario

Mon 2/23

10:20 pm-2:23 pm

2 stops13h 03m

$559

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 2/26

3:03 pm-11:49 pm

2 stops11h 46m

Ontario

Sun 3/1

10:20 pm-2:23 pm

2 stops13h 03m

$559

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Tue 2/17

3:03 pm-11:49 pm

2 stops11h 46m

Ontario

Sun 2/22

10:20 pm-2:23 pm

2 stops13h 03m

$652

IthacaOntario

ITH - ONT

ITHONT

Ithaca Tompkins County

Thu 4/23

10:30 am-8:36 pm

2 stops13h 06m

Ontario

Tue 4/28

7:00 am-11:59 pm

2 stops13h 59m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 15 results
1
2
  • Most accurate provider: When it comes to deals on Ithaca-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ithaca-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ithaca-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ithaca-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 Ithaca-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 Ithaca to Ontario

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

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

Currently, April is the cheapest month in which you can book a flight from Ithaca to Ontario (average of $139). Flying from Ithaca to Ontario in February is currently the most expensive (average of $269). 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.

Related info for your journey

Find useful and relevant information for your journey from Ithaca 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 Ithaca to Ontario?

    A quick flight from Ithaca to Ontario can take about 13h 06m. Delta provides one of the quickest options available for as low as $470. The distance from Ithaca to Ontario is about 2281 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Ithaca to Ontario (average of $139). Flying from Ithaca to Ontario in February is currently the most expensive (average of $269). 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 Ithaca to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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