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$387+ Cheap flights from Istanbul (IST) to Ontario (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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
IST — ONT
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Istanbul to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) 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 septiembre 11, 2025.

Round-trip from

$543
(American Airlines)

One-way from

$387
(Iberia)

Popular in

August

Cheapest in

February

Average price

$702
From Istanbul to Ontario
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One-way flight from Istanbul to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Istanbul to Ontario

Cheapest flights from Istanbul to Ontario
Explore the most affordable flight options available from Istanbul to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 11/186:30 amIST - ONT
2 stops22h 04mUnited Airlines
mié. 12/101:35 pmONT - IST
2 stops22h 10mUnited Airlines
Deal found 9/10$638
This United Airlines deal was found by Cheapflights users on 9/10. 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.
jue. 11/276:30 amIST - ONT
2 stops41h 07mUnited Airlines
mié. 3/185:40 amONT - IST
2 stops26h 25mUnited Airlines
Deal found 9/10$639
This Delta deal was found by Cheapflights users on 9/10. 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.
lun. 12/15:55 pmIST - ONT
2 stops36h 40mDelta
mar. 3/1710:30 pmONT - IST
2 stops43h 20mDelta
Deal found 9/10$665
This United Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 12/26:30 amIST - ONT
2 stops22h 07mUnited Airlines
lun. 3/161:00 pmONT - IST
2 stops23h 45mUnited Airlines
Deal found 9/10$674
This Delta deal was found by Cheapflights users on 9/10. 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.
lun. 12/15:55 pmIST - ONT
2 stops36h 40mDelta
mié. 3/1810:30 pmONT - IST
2 stops43h 20mDelta
Deal found 9/10$677
This Delta deal was found by Cheapflights users on 9/10. 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.
lun. 12/15:55 pmIST - ONT
2 stops36h 40mDelta
sáb. 3/2110:30 pmONT - IST
2 stops43h 20mDelta
Deal found 9/10$690
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/17:35 amIST - ONT
2 stops25h 07mBritish Airways
vie. 11/712:46 pmONT - IST
2 stops24h 49mBritish Airways
Deal found 9/11$695
This Delta deal was found by Cheapflights users on 9/10. 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.
mié. 11/264:50 amIST - ONT
2 stops42h 28mDelta
dom. 3/155:05 pmONT - IST
2 stops48h 45mDelta
Deal found 9/10$708
This Delta deal was found by Cheapflights users on 9/10. 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.
mié. 11/264:50 amIST - ONT
2 stops42h 28mDelta
sáb. 3/2110:30 pmONT - IST
2 stops43h 20mDelta
Deal found 9/10$720
This United Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 11/46:30 amIST - ONT
2 stops22h 04mUnited Airlines
lun. 11/171:29 pmONT - IST
2 stops17h 26mUnited Airlines
Deal found 9/10$723
This United Airlines deal was found by Cheapflights users on 9/10. 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.
vie. 10/36:10 amIST - ONT
2 stops25h 14mUnited Airlines
jue. 2/197:00 amONT - IST
2 stops24h 05mUnited Airlines
Deal found 9/10$724
This United Airlines deal was found by Cheapflights users on 9/11. 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.
mar. 10/216:10 amIST - ONT
2 stops21h 30mUnited Airlines
mar. 2/1710:40 amONT - IST
2 stops20h 05mUnited Airlines
Deal found 9/11$725

Cheapflights Fare Finder

 
Customize your flight search to find flights from Istanbul 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Istanbul Airport to Ontario that are best for you.

Fly from

Istanbul

Fly to

Ontario

Route

Depart

Return

Price

IstanbulOntario

IST - ONT

ISTONT

Istanbul

jue. 3/5

7:35 am-1:44 pm

2 stops41h 09m

Ontario

lun. 3/9

1:32 pm-12:05 am

2 stops24h 33m

$544

IstanbulOntario

IST - ONT

ISTONT

Istanbul

vie. 11/28

6:30 am-7:41 pm

2 stops24h 11m

Ontario

mar. 3/17

1:00 pm-5:45 pm

2 stops18h 45m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

vie. 11/28

6:30 am-7:41 pm

2 stops24h 11m

Ontario

dom. 3/15

6:00 am-10:45 pm

2 stops30h 45m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

vie. 11/28

6:30 am-7:41 pm

2 stops24h 11m

Ontario

lun. 3/16

5:40 am-5:55 pm

2 stops26h 15m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

jue. 11/27

6:30 am-12:33 pm

2 stops41h 03m

Ontario

dom. 3/15

5:40 am-6:05 pm

2 stops26h 25m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

vie. 11/28

6:30 am-7:41 pm

2 stops24h 11m

Ontario

mié. 3/18

7:00 am-6:05 pm

2 stops25h 05m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

vie. 11/28

6:30 am-7:41 pm

2 stops24h 11m

Ontario

jue. 3/19

5:40 am-6:05 pm

2 stops26h 25m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

vie. 11/28

6:30 am-7:41 pm

2 stops24h 11m

Ontario

sáb. 3/21

5:40 am-6:05 pm

2 stops26h 25m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

jue. 11/27

6:30 am-12:37 pm

2 stops41h 07m

Ontario

mié. 3/18

5:40 am-6:05 pm

2 stops26h 25m

$639

IstanbulOntario

IST - ONT

ISTONT

Istanbul

mar. 12/2

5:55 pm-11:03 pm

2 stops40h 08m

Ontario

mar. 3/17

10:30 pm-3:50 am

2 stops43h 20m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 24 results
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Best time to book a flight from Istanbul to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $246). Flying from Istanbul Airport to Ontario in March is currently the most expensive (average of $328). 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 Istanbul to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Istanbul?

    For a flight from Istanbul to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Istanbul per day. 0 airlines have flights to Ontario from Istanbul on a regular basis.

  • How long is the flight from Istanbul Airport to Ontario?

    American Airlines and United Airlines can get you from Istanbul Airport to Ontario in just under 24h 11m. Your travel time can differ by up to 16h 58m. There are 6805 mi between Istanbul Airport and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Istanbul 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 Istanbul Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $246). Flying from Istanbul Airport to Ontario in March is currently the most expensive (average of $328). 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.

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