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$414+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
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 July 9, 2026.

This United Airlines deal was found by Cheapflights users on 7/4. 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 11/34:04 pm
ONT
-
IST
2 stops19h 41m
United Airlines
Tue 11/106:30 am
IST
-
ONT
2 stops24h 36m
United Airlines
Deal found 7/4$910
This United Airlines deal was found by Cheapflights users on 7/5. 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 12/51:00 pm
ONT
-
IST
2 stops46h 45m
United Airlines
Thu 12/246:30 am
IST
-
ONT
2 stops25h 51m
United Airlines
Deal found 7/5$916
This CheapOair deal was found by Cheapflights users on 7/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:05 pm
ONT
-
IST
2 stops25h 55m
British Airways
Mon 11/26:40 pm
IST
-
ONT
2 stops40h 17m
British Airways
Deal found 7/8$940
This Air France deal was found by Cheapflights users on 7/6. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:18 pm
ONT
-
IST
2 stops18h 17m
Air France
Fri 11/137:15 am
IST
-
ONT
2 stops22h 03m
Air France
Deal found 7/6$957
This United Airlines deal was found by Cheapflights users on 7/5. 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 11/56:00 am
ONT
-
IST
2 stops25h 10m
United Airlines
Fri 11/136:30 am
IST
-
ONT
2 stops27h 23m
United Airlines
Deal found 7/5$960
This British Airways deal was found by Cheapflights users on 7/6. 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.
Thu 12/242:42 pm
ONT
-
IST
2 stops23h 28m
British Airways
Thu 2/47:35 am
IST
-
ONT
2 stops25h 26m
British Airways
Deal found 7/6$961
This United Airlines deal was found by Cheapflights users on 7/6. 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 11/141:13 pm
ONT
-
IST
2 stops46h 32m
United Airlines
Sun 11/226:30 am
IST
-
ONT
2 stops26h 20m
United Airlines
Deal found 7/6$966
This FlightHub deal was found by Cheapflights users on 7/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:02 am
ONT
-
IST
2 stops44h 13m
Multiple Airlines
Tue 9/158:05 pm
IST
-
ONT
2 stops32h 58m
Multiple Airlines
Deal found 7/5$967
This Iberia deal was found by Cheapflights users on 7/5. 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.
Sun 12/610:47 am
ONT
-
IST
2 stops19h 38m
Multiple Airlines
Sun 12/208:20 am
IST
-
ONT
2 stops24h 54m
Multiple Airlines
Deal found 7/5$978
This Air France deal was found by Cheapflights users on 7/5. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:18 pm
ONT
-
IST
2 stops18h 17m
Air France
Fri 11/137:15 am
IST
-
ONT
2 stops22h 03m
Air France
Deal found 7/5$990
This United Airlines deal was found by Cheapflights users on 7/4. 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 9/131:53 pm
ONT
-
IST
2 stops21h 42m
United Airlines
Sun 2/76:30 am
IST
-
ONT
2 stops25h 51m
United Airlines
Deal found 7/4$994
This British Airways deal was found by Cheapflights users on 7/6. 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.
Mon 8/1710:29 am
ONT
-
IST
2 stops22h 26m
British Airways
Mon 8/248:15 am
IST
-
ONT
2 stops24h 44m
British Airways
Deal found 7/6$995

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 July 9, 2026.

Round-trip from

$910
(United Airlines)

One-way from

$414
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$1,294
From Ontario to Istanbul
Search Deals
One-way flight from Ontario to Istanbul
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($297 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 9, 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

Sat 12/5

1:00 pm-10:45 pm

2 stops46h 45m

Istanbul

Thu 12/24

6:30 am-9:21 pm

2 stops25h 51m

$916

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 10/21

1:52 pm-9:25 pm

2 stops21h 33m

Istanbul

Tue 11/3

6:30 am-8:06 pm

2 stops24h 36m

$1,015

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 11/5

9:00 am-10:45 pm

2 stops26h 45m

Istanbul

Sun 11/15

6:30 am-6:29 pm

2 stops22h 59m

$1,073

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 8/6

5:00 am-4:55 pm

2 stops25h 55m

Istanbul

Thu 8/20

1:55 pm-10:59 pm

2 stops19h 04m

$1,082

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 8/5

1:50 pm-4:55 pm

2 stops41h 05m

Istanbul

Wed 8/26

1:55 pm-8:01 pm

2 stops40h 06m

$1,094

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 8/13

1:56 pm-9:35 pm

2 stops21h 39m

Istanbul

Mon 8/24

1:55 pm-6:11 pm

2 stops38h 16m

$1,102

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/22

12:12 pm-12:15 pm

2 stops38h 03m

Istanbul

Tue 9/29

8:05 pm-7:03 pm

2 stops32h 58m

$1,111

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/1

9:15 am-9:15 pm

2 stops26h 00m

Istanbul

Tue 9/15

5:40 am-8:01 pm

3 stops24h 21m

$1,138

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 8/24

12:00 pm-11:55 am

2 stops37h 55m

Istanbul

Mon 9/7

8:05 pm-1:31 pm

2 stops27h 26m

$1,146

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 9/6

12:00 pm-6:20 am

2 stops32h 20m

Istanbul

Thu 9/24

8:05 pm-7:03 pm

2 stops32h 58m

$1,147

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 40 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 United Airlines and KLM fly from Ontario to Istanbul in about 21h 22m. The time it takes to get you to your destination can typically vary by up to 25h 23m. 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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