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$528+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Jun 16 — Jun 231
Tue 6/16
Tue 6/23
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 17, 2026.

This Delta deal was found by Cheapflights users on 5/12. 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 8/155:06 pm
ONT
-
IST
2 stops48h 24m
Delta
Mon 8/245:20 pm
IST
-
ONT
2 stops34h 01m
Delta
Deal found 5/12$724
This Delta deal was found by Cheapflights users on 5/12. 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
Mon 8/245:20 pm
IST
-
ONT
2 stops34h 01m
Delta
Deal found 5/12$756
This Delta deal was found by Cheapflights users on 5/12. 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
Mon 8/245:20 pm
IST
-
ONT
2 stops34h 01m
Delta
Deal found 5/12$768
This Delta deal was found by Cheapflights users on 5/12. 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 8/1512:55 pm
ONT
-
IST
2 stops52h 35m
Delta
Sun 8/236:00 am
IST
-
ONT
2 stops26h 45m
Delta
Deal found 5/12$774
This Delta deal was found by Cheapflights users on 5/16. 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 8/146:00 am
ONT
-
IST
2 stops35h 30m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/16$775
This Delta deal was found by Cheapflights users on 5/16. 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 8/136:20 am
ONT
-
IST
2 stops35h 10m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/16$797
This Delta deal was found by Cheapflights users on 5/16. 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 8/156:20 am
ONT
-
IST
2 stops35h 10m
Delta
Sat 8/226:00 am
IST
-
ONT
2 stops40h 05m
Delta
Deal found 5/16$874
This Delta deal was found by Cheapflights users on 5/12. 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 10/105:50 pm
ONT
-
IST
2 stops47h 40m
Delta
Mon 10/195:20 pm
IST
-
ONT
2 stops33h 57m
Delta
Deal found 5/12$892
This Delta deal was found by Cheapflights users on 5/12. 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 9/121:00 pm
ONT
-
IST
2 stops52h 30m
Delta
Mon 9/215:20 pm
IST
-
ONT
2 stops34h 41m
Delta
Deal found 5/12$904
This United Airlines deal was found by Cheapflights users on 5/15. 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 11/24:03 pm
ONT
-
IST
2 stops19h 42m
United Airlines
Wed 11/186:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 5/15$913
This British Airways deal was found by Cheapflights users on 5/14. 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.
Tue 8/1812:33 pm
ONT
-
IST
2 stops19h 52m
British Airways
Wed 8/268:15 am
IST
-
ONT
2 stops22h 57m
British Airways
Deal found 5/14$914
This Delta deal was found by Cheapflights users on 5/16. 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 8/276:20 am
ONT
-
IST
2 stops35h 10m
Delta
Fri 9/46:00 am
IST
-
ONT
2 stops26h 40m
Delta
Deal found 5/16$935

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 17, 2026.

Round-trip from

$724
(Delta)

One-way from

$528
(Delta)

Popular in

June

Cheapest in

February

Average price

$1,179
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 ($286 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 17, 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

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 8/5

12:33 pm-7:05 pm

2 stops20h 32m

Istanbul

Fri 8/14

8:10 am-9:12 pm

2 stops23h 02m

$1,150

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sun 6/7

6:20 am-9:00 pm

2 stops28h 40m

Istanbul Sabiha Gokcen

Wed 6/10

8:50 am-10:41 pm

2 stops23h 51m

$1,208

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 8/22

2:43 pm-11:55 am

2 stops35h 12m

Istanbul

Fri 9/4

8:05 pm-6:58 pm

2 stops32h 53m

$1,292

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 8/2

1:50 pm-9:35 pm

2 stops21h 45m

Istanbul

Tue 8/11

5:40 am-8:01 pm

2 stops24h 21m

$1,385

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sun 5/24

11:52 am-9:00 pm

2 stops23h 08m

Istanbul Sabiha Gokcen

Tue 6/9

8:50 am-10:41 pm

2 stops23h 51m

$1,401

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Wed 5/27

1:29 pm-9:00 pm

2 stops21h 31m

Istanbul Sabiha Gokcen

Mon 6/1

2:40 pm-5:08 pm

2 stops36h 28m

$1,425

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 6/4

12:41 pm-7:20 am

2 stops32h 39m

Istanbul

Tue 6/9

11:55 pm-11:11 pm

2 stops33h 16m

$1,699

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 6/4

1:50 pm-10:35 pm

2 stops22h 45m

Istanbul

Mon 6/15

1:15 pm-10:37 pm

2 stops19h 22m

$1,701

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 6/1

6:00 am-12:15 am

2 stops32h 15m

Istanbul

Mon 6/15

10:10 am-10:51 pm

2 stops22h 41m

$1,701

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 6/4

6:05 am-5:15 pm

2 stops25h 10m

Istanbul

Sun 6/14

9:40 am-10:37 pm

2 stops22h 57m

$1,701

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

Showing 1-10 of 38 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 British Airways, KLM, and Qatar Airways fly from Ontario to Istanbul in about 20h 32m. The time it takes to get you to your destination can typically vary by up to 14h 40m. The distance between Ontario and Istanbul is about 6805 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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