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$595+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap 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 June 18, 2025.

Round-trip from

$738
(United Airlines)

One-way from

$595
(oojo)

Popular in

June

Cheapest in

February

Average price

$1,477
From Ontario to Istanbul
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One-way flight from Ontario to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 18, 2025.

This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:40 pmONT - IST
2 stops22h 05mUnited Airlines
Tue 12/166:30 amIST - ONT
2 stops26h 04mUnited Airlines
Deal found 6/16$738
This Gurufare deal was found by Cheapflights users on 6/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:02 pmONT - IST
2 stops21h 28mBritish Airways
Tue 11/117:35 amIST - ONT
2 stops25h 06mBritish Airways
Deal found 6/16$765
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/102:25 pmONT - IST
2 stops27h 00mDelta
Tue 9/164:20 amIST - ONT
2 stops21h 54mDelta
Deal found 6/18$826
This KLM deal was found by Cheapflights users on 6/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:00 pmONT - IST
2 stops17h 55mKLM
Wed 11/55:10 amIST - ONT
2 stops23h 07mKLM
Deal found 6/15$972
This oojo deal was found by Cheapflights users on 6/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:00 amONT - IST
2 stops38h 10mQatar Airways
Wed 10/298:10 pmIST - ONT
2 stops37h 20mQatar Airways
Deal found 6/18$1,029
This Turkish Airlines deal was found by Cheapflights users on 6/18. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1211:45 pmONT - IST
1 stop19h 45mMultiple Airlines
Mon 9/157:15 amIST - ONT
1 stop24h 14mMultiple Airlines
Deal found 6/18$1,056
This oojo deal was found by Cheapflights users on 6/17. 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 9/310:56 pmONT - IST
2 stops52h 09mEtihad Airways
Sun 9/147:30 amIST - ONT
2 stops47h 59mEtihad Airways
Deal found 6/17$1,062
This Air Canada deal was found by Cheapflights users on 6/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:05 amONT - IST
3 stops26h 05mAir Canada
Mon 9/151:05 pmIST - ONT
3 stops33h 27mAir Canada
Deal found 6/18$1,100

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 June 18, 2025.
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

Sun 11/16

1:40 pm-10:45 pm

2 stops22h 05m

Istanbul

Tue 12/16

6:30 am-5:46 pm

2 stops22h 16m

$738

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 10/29

5:02 pm-12:30 am

2 stops21h 28m

Istanbul

Tue 11/11

7:35 am-9:41 pm

2 stops25h 06m

$765

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 8/10

2:25 pm-3:25 am

2 stops27h 00m

Istanbul

Tue 9/16

4:20 am-4:14 pm

2 stops21h 54m

$826

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 10/29

1:00 pm-4:55 pm

2 stops17h 55m

Istanbul

Wed 11/5

5:10 am-5:17 pm

2 stops23h 07m

$972

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 10/22

6:00 am-6:10 am

2 stops38h 10m

Istanbul

Wed 10/29

8:10 pm-11:30 pm

2 stops37h 20m

$1,029

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 8/12

11:45 pm-5:30 am

1 stop19h 45m

Istanbul

Mon 9/15

7:15 am-9:29 pm

1 stop24h 14m

$1,056

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 9/3

10:56 pm-1:05 pm

2 stops52h 09m

Istanbul

Sun 9/14

7:30 am-9:29 pm

2 stops47h 59m

$1,062

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 8/12

5:05 am-5:10 pm

3 stops26h 05m

Istanbul

Mon 9/15

1:05 pm-12:32 pm

3 stops33h 27m

$1,100

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 8/24

6:00 am-6:20 am

2 stops38h 20m

$595

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 9/20

10:56 pm-6:15 am

2 stops45h 19m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 17 results
1
2

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, November is the cheapest month in which you can book a flight from Ontario to Istanbul Airport (average of $923). Flying from Ontario to Istanbul Airport in June is currently the most expensive (average of $1,368). 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.

What is the cheapest time of day to fly from ONT to IST?

Find hourly flight availability from Ontario to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.

It’s typically best to fly out from Ontario to Istanbul Airport at noon. Doing so could potentially save you 8% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Istanbul by month

Plan your trip to Istanbul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Istanbul Airport ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Istanbul Airport when rainfall is around 0.4 in.

Temperature in Istanbul by month

Plan your trip to Istanbul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Istanbul Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 June 18, 2025.
To help decide which airline to fly from Ontario to Istanbul, see what other customers have to say about Delta, KLM and Qatar Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,364 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Qatar Airways
7.4
Good
3,590 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Etihad Airways
7.4
Good
1,215 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines flying 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 $738 on this airline. Additional options worth looking into are British Airways and Delta, starting at $765 and $826 round-trip.

  • What are the cheapest airlines to fly from Ontario to Istanbul Airport one-way?

    $595 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on Etihad Airways and United Airlines, with prices starting from $610 and $624, respectively.

  • 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, November is the cheapest month in which you can book a flight from Ontario to Istanbul Airport (average of $923). Flying from Ontario to Istanbul Airport in June is currently the most expensive (average of $1,368). 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 Ontario?

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

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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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,195Average$1,295FlexibilityNo cancel feeOn-time69%

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