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$348+ Cheap flights from Ontario to Ithaca (ONT - ITH)

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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ITH
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Cheap flight deals from Ontario to Ithaca

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Ithaca (ITH). 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 November 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$403
(Delta)

One-way from

$348
(Delta)

Popular in

May

Cheapest in

September

Average price

$618
Provider with most accurate pricing for Los Angeles-Ithaca Tompkins County flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Ithaca Tompkins County flights.
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From Ontario to Ithaca Tompkins County
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One-way flight from Ontario to Ithaca Tompkins County
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Highest demand for flights based on searches. 14% potential increase in price ($107 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Ontario to Ithaca

Cheapest flights from Ontario to Ithaca
Explore the most affordable flight options available from Ontario to Ithaca. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 19, 2025.

This Delta deal was found by Cheapflights users on 11/18. 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 12/66:40 amONT - ITH
2 stops13h 11mDelta
Tue 12/95:34 amITH - ONT
2 stops20h 13mDelta
Deal found 11/18$418
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/36:00 amONT - ITH
2 stops14h 43mUnited Airlines
Sun 12/76:10 amITH - ONT
2 stops9h 22mUnited Airlines
Deal found 11/18$524
This United Airlines deal was found by Cheapflights users on 11/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:05 amONT - ITH
2 stops10h 33mUnited Airlines
Tue 12/97:57 pmITH - ONT
3 stops29h 52mUnited Airlines
Deal found 11/17$574
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/146:41 pmONT - ITH
3 stops26h 02mUnited Airlines
Tue 12/166:10 amITH - ONT
2 stops18h 39mUnited Airlines
Deal found 11/19$948
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/146:41 pmONT - ITH
3 stops26h 02mUnited Airlines
Wed 12/177:57 pmITH - ONT
2 stops17h 04mUnited Airlines
Deal found 11/19$1,040

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Ithaca 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 November 19, 2025.
Use the filters below to find and compare flights from Ontario to Ithaca that are best for you.

Fly from

Ontario

Fly to

Ithaca

Route

Depart

Return

Price

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sat 12/6

6:40 am-10:51 pm

2 stops13h 11m

Ithaca Tompkins County

Tue 12/9

5:34 am-10:47 pm

2 stops20h 13m

$418

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Wed 2/11

5:05 am-6:41 pm

2 stops10h 36m

Ithaca Tompkins County

Tue 2/17

7:45 pm-10:57 pm

2 stops30h 12m

$562

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sat 12/6

5:05 am-6:38 pm

2 stops10h 33m

Ithaca Tompkins County

Tue 12/9

7:57 pm-10:49 pm

3 stops29h 52m

$574

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Wed 12/3

6:00 am-11:43 pm

2 stops14h 43m

Ithaca Tompkins County

Sun 12/7

6:10 am-9:49 pm

3 stops18h 39m

$718

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sun 12/14

6:41 pm-11:43 pm

3 stops26h 02m

Ithaca Tompkins County

Tue 12/16

6:10 am-10:49 pm

2 stops19h 39m

$948

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Fri 2/20

10:20 pm-2:34 pm

2 stops13h 14m

$348

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Thu 3/5

10:20 pm-2:34 pm

2 stops13h 14m

$375

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Sat 2/21

10:20 pm-2:34 pm

2 stops13h 14m

$414

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Tue 12/23

6:04 am-11:44 pm

2 stops14h 40m

$575

OntarioIthaca

ONT - ITH

ONTITH

Ontario

Mon 12/1

8:38 pm-6:38 pm

3 stops19h 00m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 13 results
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Best time to book a flight from Ontario to Ithaca

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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Ithaca (average of $160). Flying from Ontario to Ithaca in December is currently the most expensive (average of $291). 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 Ontario to Ithaca. 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 Ontario to Ithaca?

    There are many flights that can get you from Ontario to Ithaca in 10h 36m. Fly via Delta or United Airlines to get the fastest option. The distance between Ontario and Ithaca is about 2281 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Ontario to Ithaca (average of $160). Flying from Ontario to Ithaca in December is currently the most expensive (average of $291). 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

Traveling to a place near Ithaca?

Book flights to Ithaca if you plan to visit one of these locations
Cortland

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