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$389+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
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 28, 2026.

This United Airlines deal was found by Cheapflights users on 7/23. 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 11/244:04 pm
ONT
-
IST
2 stops19h 41m
United Airlines
Tue 12/86:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 7/23$833
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Sun 11/19:25 am
ONT
-
IST
2 stops26h 20m
United Airlines
Fri 11/206:30 am
IST
-
ONT
2 stops40h 59m
United Airlines
Deal found 7/24$838
This Travelocity deal was found by Cheapflights users on 7/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/309:29 am
ONT
-
IST
2 stops27h 31m
British Airways
Mon 12/148:15 am
IST
-
ONT
2 stops25h 04m
British Airways
Deal found 7/23$857
This oojo deal was found by Cheapflights users on 7/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:29 am
ONT
-
IST
2 stops27h 56m
British Airways
Wed 12/96:45 pm
IST
-
ONT
2 stops38h 15m
British Airways
Deal found 7/24$861
This United Airlines deal was found by Cheapflights users on 7/23. 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 11/284:04 pm
ONT
-
IST
2 stops19h 41m
United Airlines
Tue 12/86:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 7/23$883
This British Airways deal was found by Cheapflights users on 7/26. 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 10/2012:43 pm
ONT
-
IST
2 stops19h 42m
British Airways
Tue 11/107:35 am
IST
-
ONT
2 stops26h 22m
British Airways
Deal found 7/26$887
This United Airlines deal was found by Cheapflights users on 7/23. 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 10/256:46 am
ONT
-
IST
2 stops29h 59m
United Airlines
Sun 11/86:30 am
IST
-
ONT
2 stops40h 31m
United Airlines
Deal found 7/23$888
This Expedia deal was found by Cheapflights users on 7/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:43 pm
ONT
-
IST
2 stops20h 47m
British Airways
Thu 11/57:35 am
IST
-
ONT
2 stops22h 34m
British Airways
Deal found 7/23$907
This United Airlines deal was found by Cheapflights users on 7/27. 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 11/91:29 pm
ONT
-
IST
2 stops46h 16m
United Airlines
Fri 11/206:30 am
IST
-
ONT
2 stops40h 59m
United Airlines
Deal found 7/27$915
This oojo deal was found by Cheapflights users on 7/23. 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 9/96:02 am
ONT
-
IST
2 stops38h 18m
Qatar Airways
Wed 9/168:05 pm
IST
-
ONT
2 stops37h 19m
Qatar Airways
Deal found 7/23$929
This United Airlines deal was found by Cheapflights users on 7/23. 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 11/211:13 pm
ONT
-
IST
2 stops46h 32m
United Airlines
Sat 12/56:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 7/23$933
This United Airlines deal was found by Cheapflights users on 7/27. 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 8/257:00 am
ONT
-
IST
2 stops20h 00m
United Airlines
Thu 9/175:40 am
IST
-
ONT
2 stops22h 31m
United Airlines
Deal found 7/27$934

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 28, 2026.

Round-trip from

$833
(United Airlines)

One-way from

$389
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$1,295
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 ($294 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 28, 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

Sun 1/24

1:33 pm-10:45 pm

2 stops22h 12m

Istanbul

Sun 1/31

6:30 am-5:47 pm

2 stops22h 17m

$884

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 1/1

1:18 pm-10:45 pm

2 stops22h 27m

Istanbul

Sun 1/31

6:30 am-5:47 pm

2 stops22h 17m

$934

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 9/24

6:02 am-12:15 pm

2 stops44h 13m

Istanbul

Thu 10/1

8:05 pm-11:24 pm

2 stops37h 19m

$984

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 9/16

12:12 pm-6:20 am

2 stops32h 08m

Istanbul

Fri 10/23

8:05 pm-10:17 am

2 stops48h 12m

$989

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/22

12:12 pm-6:35 pm

2 stops44h 23m

Istanbul

Tue 9/29

8:05 pm-2:16 pm

2 stops52h 11m

$991

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 10/26

5:00 am-6:10 pm

2 stops27h 10m

Istanbul

Sun 11/1

6:30 am-1:29 pm

2 stops40h 59m

$997

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 9/16

12:12 pm-6:20 am

2 stops32h 08m

Istanbul

Sun 10/18

8:05 pm-6:00 pm

2 stops31h 55m

$1,022

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 10/14

11:13 am-6:20 am

2 stops33h 07m

Istanbul

Sun 10/25

8:10 pm-6:00 pm

2 stops31h 50m

$1,025

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 9/17

12:12 pm-12:15 pm

2 stops38h 03m

Istanbul

Fri 10/2

8:05 pm-6:00 pm

2 stops31h 55m

$1,046

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 8/29

1:18 pm-9:35 pm

2 stops46h 17m

Istanbul

Tue 9/8

1:55 pm-8:01 pm

2 stops40h 06m

$1,064

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 32 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, Qatar Airways, and KLM fly from Ontario to Istanbul in about 22h 12m. The time it takes to get you to your destination can typically vary by up to 9h 56m. 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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