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$527+ Cheap flights from Ontario (ONT) to Istanbul

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Jun 22 — Jun 291
Mon 6/22
Mon 6/29
1 adult, Economy
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Cheap flight deals from Ontario to Istanbul

Cheapest flights from Ontario to Istanbul
Explore the most affordable flight options available from Ontario to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 23, 2026.

This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:55 am
ONT
-
IST
2 stops29h 35m
Delta
Mon 8/244:25 am
IST
-
ONT
2 stops41h 40m
Delta
Deal found 5/19$795
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:55 am
ONT
-
IST
2 stops29h 35m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/19$796
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:01 pm
ONT
-
IST
2 stops47h 29m
Delta
Mon 8/244:25 am
IST
-
ONT
2 stops41h 40m
Delta
Deal found 5/19$801
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:43 am
ONT
-
IST
2 stops31h 47m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/19$809
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:01 pm
ONT
-
IST
2 stops47h 29m
Delta
Mon 8/244:25 am
IST
-
ONT
2 stops41h 40m
Delta
Deal found 5/19$851
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:00 pm
ONT
-
IST
2 stops29h 30m
Delta
Mon 9/215:20 pm
IST
-
ONT
2 stops33h 56m
Delta
Deal found 5/19$884
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:55 pm
ONT
-
IST
2 stops47h 35m
Delta
Mon 9/215:20 pm
IST
-
ONT
2 stops33h 56m
Delta
Deal found 5/19$890
This United Airlines deal was found by Cheapflights users on 5/20. 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 10/211:18 pm
ONT
-
IST
2 stops17h 37m
United Airlines
Wed 11/46:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 5/20$912
This oojo deal was found by Cheapflights users on 5/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:47 pm
ONT
-
IST
2 stops20h 38m
British Airways
Wed 12/26:45 pm
IST
-
ONT
2 stops38h 15m
British Airways
Deal found 5/21$929
This oojo deal was found by Cheapflights users on 5/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:59 pm
ONT
-
IST
2 stops22h 06m
British Airways
Tue 11/37:35 am
IST
-
ONT
2 stops25h 24m
British Airways
Deal found 5/19$940
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:55 pm
ONT
-
IST
2 stops47h 35m
Delta
Mon 9/215:20 pm
IST
-
ONT
2 stops33h 56m
Delta
Deal found 5/19$941
This KLM deal was found by Cheapflights users on 5/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:05 pm
ONT
-
SAW
2 stops17h 55m
KLM
Tue 9/228:50 am
SAW
-
ONT
2 stops23h 06m
KLM
Deal found 5/18$1,063

Find flight deals from Ontario to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Istanbul (TR5). 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 May 23, 2026.

Round-trip from

$795
(Delta)

One-way from

$527
(Delta)

Popular in

June

Cheapest in

February

Average price

$1,188
From Ontario to Istanbul
Search Deals
One-way flight from Ontario to Istanbul
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($288 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Istanbul 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 May 23, 2026.
Use the filters below to find and compare flights from Ontario to Istanbul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Fri 9/11

5:05 pm-9:00 pm

2 stops17h 55m

Istanbul Sabiha Gokcen

Tue 9/22

8:50 am-9:56 pm

2 stops23h 06m

$1,063

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Thu 9/24

12:00 pm-9:00 pm

2 stops23h 00m

Istanbul Sabiha Gokcen

Mon 10/12

8:50 am-10:43 pm

2 stops23h 53m

$1,063

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Thu 11/12

12:00 pm-12:10 pm

2 stops37h 10m

Istanbul Sabiha Gokcen

Tue 11/24

1:40 pm-6:32 pm

2 stops39h 52m

$1,070

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 7/27

1:50 pm-9:25 pm

2 stops21h 35m

Istanbul

Mon 9/7

5:50 am-8:01 pm

2 stops24h 11m

$1,200

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/1

11:50 pm-11:25 pm

1 stop37h 35m

Istanbul

Tue 9/15

2:10 pm-8:13 pm

1 stop40h 03m

$1,202

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 8/7

6:10 am-9:25 pm

2 stops29h 15m

Istanbul

Sun 8/16

5:50 am-9:59 pm

2 stops26h 09m

$1,318

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 6/20

9:20 pm-6:35 pm

2 stops59h 15m

Istanbul

Sun 6/28

8:05 pm-11:11 pm

2 stops37h 06m

$1,354

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 6/22

12:04 pm-11:55 am

2 stops37h 51m

Istanbul

Sun 7/12

8:05 pm-11:11 pm

2 stops37h 06m

$1,401

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 6/21

6:02 am-6:20 am

2 stops38h 18m

Istanbul

Wed 7/15

8:05 pm-11:11 pm

2 stops37h 06m

$1,554

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/15

9:10 pm-1:00 pm

1 stop29h 50m

Istanbul

Tue 9/29

7:20 am-8:13 pm

1 stop22h 53m

$1,582

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/19

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul 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 Istanbul
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Istanbul. 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 from for flights from Ontario to Istanbul?

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

  • How long is the flight from Ontario to Istanbul?

    Airlines like KLM, United Airlines, and Turkish Airlines fly from Ontario to Istanbul in about 17h 55m. The time it takes to get you to your destination can typically vary by up to 19h 40m. The distance between Ontario and Istanbul is about 6842 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 Ontario to Istanbul that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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