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$385+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
IST — ONT
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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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 October 27, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. 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.
Sun 12/148:20 amIST - ONT
2 stops23h 47mAmerican Airlines
Wed 1/73:09 pmONT - IST
2 stops22h 16mAmerican Airlines
Deal found 10/27$643
This Iberia deal was found by Cheapflights users on 10/24. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:35 amIST - ONT
2 stops25h 53mMultiple Airlines
Tue 3/1710:57 amONT - IST
2 stops20h 48mMultiple Airlines
Deal found 10/24$645
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/66:30 amIST - ONT
3 stops27h 19mUnited Airlines
Thu 3/195:40 amONT - IST
2 stops26h 25mUnited Airlines
Deal found 10/24$655
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/156:30 amIST - ONT
2 stops27h 19mUnited Airlines
Wed 1/71:24 pmONT - IST
2 stops17h 41mUnited Airlines
Deal found 10/27$656
This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 12/144:50 amIST - ONT
2 stops30h 08mDelta
Thu 1/87:30 amONT - IST
2 stops22h 25mDelta
Deal found 10/27$662
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/66:30 amIST - ONT
3 stops27h 19mUnited Airlines
Tue 3/177:15 pmONT - IST
3 stops41h 30mUnited Airlines
Deal found 10/24$673
This Delta deal was found by Cheapflights users on 10/24. 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 12/54:50 amIST - ONT
2 stops28h 57mDelta
Tue 3/171:00 pmONT - IST
2 stops17h 55mDelta
Deal found 10/24$688
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/96:30 amIST - ONT
2 stops40h 47mUnited Airlines
Sun 3/151:45 pmONT - IST
2 stops47h 00mUnited Airlines
Deal found 10/24$690
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/96:30 amIST - ONT
2 stops40h 47mUnited Airlines
Tue 3/177:15 pmONT - IST
3 stops41h 30mUnited Airlines
Deal found 10/24$708
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/46:30 amIST - ONT
3 stops27h 19mUnited Airlines
Wed 3/181:45 pmONT - IST
2 stops18h 20mUnited Airlines
Deal found 10/24$740
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/46:30 amIST - ONT
2 stops22h 04mUnited Airlines
Tue 4/141:00 pmONT - IST
2 stops18h 00mUnited Airlines
Deal found 10/27$741
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/106:30 amIST - ONT
2 stops22h 04mUnited Airlines
Wed 12/101:34 pmONT - IST
2 stops17h 31mUnited Airlines
Deal found 10/25$775

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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$629
(KLM)

One-way from

$385
(Iberia)

Popular in

August

Cheapest in

February

Average price

$753
Provider with most accurate pricing for Istanbul-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Istanbul-Ontario flights.
Search Deals
From Istanbul to Ontario
Search Deals
One-way flight from Istanbul to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 27, 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

Thu 3/5

5:55 pm-4:19 pm

2 stops33h 24m

Ontario

Mon 3/9

10:30 pm-4:55 pm

2 stops56h 25m

$629

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sun 12/14

8:20 am-9:07 pm

2 stops23h 47m

Ontario

Wed 1/7

3:09 pm-12:25 am

2 stops22h 16m

$643

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 12/8

6:30 am-12:32 pm

2 stops41h 02m

Ontario

Sat 3/14

7:15 pm-10:45 pm

2 stops41h 30m

$655

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 12/8

6:30 am-12:32 pm

2 stops41h 02m

Ontario

Mon 3/16

7:15 pm-5:45 pm

2 stops36h 30m

$655

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sat 12/6

6:30 am-10:49 pm

3 stops27h 19m

Ontario

Mon 3/16

5:40 am-5:55 pm

2 stops26h 15m

$655

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 12/15

6:30 am-10:49 pm

2 stops27h 19m

Ontario

Wed 1/7

1:24 pm-6:05 pm

2 stops17h 41m

$656

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Tue 12/16

6:30 am-10:49 pm

2 stops27h 19m

Ontario

Wed 1/7

1:24 pm-6:05 pm

2 stops17h 41m

$656

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sun 12/14

4:50 am-11:58 pm

2 stops30h 08m

Ontario

Thu 1/8

7:30 am-4:55 pm

2 stops22h 25m

$662

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Thu 2/5

7:35 am-10:48 pm

2 stops26h 13m

$385

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 4/20

8:25 am-9:56 pm

2 stops23h 31m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 18 results
1
2

Compare providers for flights from Istanbul 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 Istanbul to Ontario in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Istanbul Airport-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Istanbul Airport-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Istanbul Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Istanbul Airport-Ontario flights, Cheapflights users trust eDreams the most. eDreams 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 Istanbul Airport-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 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, February is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $444). Flying from Istanbul Airport to Ontario in July is currently the most expensive (average of $616). 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?

    KLM can get you from Istanbul Airport to Ontario in just under 33h 24m. Your travel time can differ by up to . There are 6805 mi between Istanbul Airport and Ontario.

  • 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, February is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $444). Flying from Istanbul Airport to Ontario in July is currently the most expensive (average of $616). 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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