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Istanbul

$464+ Cheap flights from Ontario (ONT) to Istanbul (IST)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
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 February 23, 2026.

This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:27 pm
ONT
-
IST
2 stops21h 48m
United Airlines
Tue 5/55:40 am
IST
-
ONT
2 stops26h 18m
United Airlines
Deal found 2/19$579
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/231:40 pm
ONT
-
IST
2 stops23h 05m
United Airlines
Mon 4/61:55 pm
IST
-
ONT
2 stops38h 07m
United Airlines
Deal found 2/19$674
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:27 pm
ONT
-
IST
2 stops22h 08m
United Airlines
Mon 4/275:50 am
IST
-
ONT
2 stops21h 57m
United Airlines
Deal found 2/19$679
This KAYAK deal was found by Cheapflights users on 2/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/111:30 pm
ONT
-
IST
2 stops21h 55m
Lufthansa
Tue 5/191:55 pm
IST
-
ONT
2 stops29h 46m
Lufthansa
Deal found 2/19$710
This United Airlines deal was found by Cheapflights users on 2/20. 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 4/151:27 pm
ONT
-
IST
2 stops21h 58m
United Airlines
Wed 4/225:40 am
IST
-
ONT
2 stops26h 10m
United Airlines
Deal found 2/20$728
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:27 pm
ONT
-
IST
2 stops21h 48m
United Airlines
Sun 4/195:50 am
IST
-
ONT
2 stops26h 00m
United Airlines
Deal found 2/19$729
This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 am
ONT
-
IST
2 stops30h 45m
United Airlines
Thu 4/161:55 pm
IST
-
ONT
2 stops32h 25m
United Airlines
Deal found 2/21$733
This Delta deal was found by Cheapflights users on 2/22. 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 4/55:09 pm
ONT
-
IST
2 stops22h 11m
Delta
Fri 5/16:00 am
IST
-
ONT
2 stops21h 15m
Delta
Deal found 2/22$739
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 10/311:00 pm
ONT
-
IST
2 stops19h 05m
United Airlines
Tue 11/106:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 2/20$744
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 4/1911:05 am
ONT
-
IST
2 stops24h 30m
United Airlines
Wed 4/291:55 pm
IST
-
ONT
2 stops42h 03m
United Airlines
Deal found 2/20$749
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 4/176:05 am
ONT
-
IST
2 stops29h 20m
United Airlines
Thu 4/305:40 am
IST
-
ONT
2 stops26h 18m
United Airlines
Deal found 2/20$778
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:34 pm
ONT
-
IST
2 stops22h 01m
United Airlines
Mon 4/205:50 am
IST
-
ONT
2 stops21h 57m
United Airlines
Deal found 2/19$779

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 (IST). 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 February 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$579
(United Airlines)

One-way from

$464
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$745
Provider with most accurate pricing for Ontario-Istanbul flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Istanbul flights.
Search Deals
From Ontario to Istanbul
Search Deals
One-way flight from Ontario to Istanbul
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 23, 2026.
Use the filters below to find and compare flights from Ontario to Istanbul Airport that are best for you.

Fly from

Ontario

Fly to

Istanbul

Route

Depart

Return

Price

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 4/14

1:27 pm-9:15 pm

2 stops21h 48m

Istanbul

Tue 4/28

5:40 am-9:50 pm

2 stops26h 10m

$579

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 3/23

1:40 pm-10:45 pm

2 stops23h 05m

Istanbul

Mon 4/6

1:55 pm-6:02 pm

2 stops38h 07m

$674

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 5/11

1:30 pm-9:25 pm

2 stops21h 55m

Istanbul

Tue 5/19

1:55 pm-9:41 am

2 stops29h 46m

$710

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 4/14

1:27 pm-9:15 pm

2 stops21h 48m

Istanbul

Sun 4/19

5:50 am-9:50 pm

2 stops26h 00m

$729

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 4/16

1:34 pm-9:35 pm

2 stops22h 01m

Istanbul

Mon 4/20

5:50 am-5:47 pm

2 stops21h 57m

$779

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 4/7

11:05 am-4:55 pm

2 stops19h 50m

Istanbul

Fri 5/1

1:55 pm-10:59 pm

2 stops19h 04m

$828

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 5/10

1:30 pm-9:35 pm

2 stops22h 05m

Istanbul

Tue 5/26

5:40 am-9:55 pm

2 stops26h 15m

$850

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 3/30

1:34 pm-4:55 pm

2 stops17h 21m

Istanbul

Tue 4/7

5:40 am-10:26 pm

2 stops26h 46m

$869

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 4/2

1:34 pm-9:25 pm

2 stops45h 51m

Istanbul

Tue 4/14

5:40 am-12:20 pm

2 stops40h 40m

$891

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 4/6

11:05 am-4:55 pm

2 stops19h 50m

Istanbul

Fri 5/1

1:55 pm-10:59 pm

2 stops19h 04m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 24 results
1
2
3

Compare providers for flights from Ontario to Istanbul

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 Ontario to Istanbul in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 Ontario-Istanbul Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Istanbul Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Istanbul Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Istanbul Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Ontario-Istanbul Airport 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 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 Airport

What is the cheapest month to book a flight from Ontario to Istanbul Airport?

Currently, January is the cheapest month in which you can book a flight from Ontario to Istanbul Airport (average of $513). Flying from Ontario to Istanbul Airport in July is currently the most expensive (average of $902). 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.

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated February 23, 2026.
Read through reviews of airlines operating flights from Ontario to Istanbul Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,342 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,342 reviews
United Airlines
7.4
Good
9,342 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Istanbul. You should not have trouble finding flights to Istanbul from Ontario; the airport handles an average of 0 outbound flights to Istanbul per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Ontario airport to Istanbul. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Istanbul Airport?

    Departing from Ontario to Istanbul Airport will take you 21h 48m. Ontario and Istanbul Airport are separated by a distance of 6805 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Ontario to Istanbul Airport round-trip?

    Our cheapest airline available from Ontario to Istanbul Airport is United Airlines. Our recent data shows that you can find tickets from as low as $775 on this airline.

  • 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.

  • What is the cheapest month to book a flight from Ontario to Istanbul Airport?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Istanbul Airport (average of $513). Flying from Ontario to Istanbul Airport in July is currently the most expensive (average of $902). 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.

See more FAQs

Traveling to a place near Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Ontario to Istanbul

Discover the top airline that operate flights from Ontario to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$775Average$1,195FlexibilityNo cancel feeOn-time69%

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