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$568+ Cheap flights from Istanbul (IST) to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
IST — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Istanbul to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) to Ontario (ONT). 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 12, 2025.

Round-trip from

$568
(American Airlines)

Popular in

August

Cheapest in

February

Average price

$738
From Istanbul to Ontario
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Highest demand for flights based on searches. 16% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 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 Istanbul to Ontario

Cheapest flights from Istanbul to Ontario
Explore the most affordable flight options available from Istanbul to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/58:15 amIST - ONT
2 stops24h 01mAmerican Airlines
Mon 10/205:02 pmONT - IST
2 stops21h 28mAmerican Airlines
Deal found 6/11$568
This Expedia deal was found by Cheapflights users on 6/11. 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.
Sat 7/268:25 amIST - ONT
2 stops47h 45mBritish Airways
Sat 8/24:45 pmONT - IST
2 stops22h 10mBritish Airways
Deal found 6/11$710
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/46:10 amIST - ONT
2 stops21h 39mUnited Airlines
Sat 10/181:15 pmONT - IST
2 stops22h 05mUnited Airlines
Deal found 6/11$746
This Iberia deal was found by Cheapflights users on 6/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/178:15 amIST - ONT
2 stops20h 46mMultiple Airlines
Mon 6/3012:49 pmONT - IST
2 stops20h 01mMultiple Airlines
Deal found 6/12$891
This oojo deal was found by Cheapflights users on 6/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/168:05 pmIST - ONT
2 stops38h 08mQatar Airways
Wed 7/236:00 amONT - IST
2 stops38h 20mQatar Airways
Deal found 6/12$1,158
This Etihad Airways deal was found by Cheapflights users on 6/11. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/162:10 pmIST - ONT
2 stops41h 49mEtihad Airways
Tue 7/111:59 pmONT - IST
2 stops44h 11mEtihad Airways
Deal found 6/11$3,302

Cheapflights Fare Finder

Customize your flight search to find flights from Istanbul to Ontario 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 12, 2025.
Use the filters below to find and compare flights from Istanbul Airport to Ontario that are best for you.

Fly from

Istanbul

Fly to

Ontario

Route

Depart

Return

Price

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sun 10/5

8:15 am-10:16 pm

2 stops24h 01m

Ontario

Mon 10/20

5:02 pm-12:30 am

2 stops21h 28m

$568

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sat 7/26

8:25 am-10:10 pm

2 stops47h 45m

Ontario

Sat 8/2

4:45 pm-12:55 am

2 stops22h 10m

$710

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sat 10/4

6:10 am-5:49 pm

2 stops21h 39m

Ontario

Sat 10/18

1:15 pm-9:20 pm

2 stops22h 05m

$746

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Wed 7/16

8:05 pm-12:13 am

2 stops38h 08m

Ontario

Wed 7/23

6:00 am-6:20 am

2 stops38h 20m

$1,158

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 9/1

8:25 am-10:10 pm

2 stops23h 45m

Ontario

Sat 10/4

10:54 am-5:40 pm

2 stops20h 46m

$1,374

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Thu 9/4

2:10 pm-9:29 pm

2 stops41h 19m

Ontario

Sat 10/4

10:56 pm-6:15 am

2 stops45h 19m

$3,309

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 7/21

4:35 pm-6:27 pm

3 stops59h 52m

$689

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Fri 11/7

7:55 am-10:31 pm

2 stops25h 36m

$735

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Wed 6/25

6:10 am-9:10 pm

2 stops25h 00m

$746

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Fri 7/25

8:05 pm-5:57 pm

2 stops31h 52m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results
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Best time to book a flight from Istanbul to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Istanbul 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 Istanbul Airport to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $246). Flying from Istanbul Airport to Ontario in March is currently the most expensive (average of $328). 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated June 12, 2025.
Qatar Airways
7.4
Good
3,584 reviews

Entertainment

7.4

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Qatar Airways
7.4
Good
3,584 reviews
Qatar Airways
7.4
Good
3,584 reviews

Entertainment

7.4

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Etihad Airways
7.4
Good
1,211 reviews
Qatar Airways
7.4
Good
3,584 reviews

Entertainment

7.4

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
United Airlines
7.4
Good
8,790 reviews
Qatar Airways
7.4
Good
3,584 reviews

Entertainment

7.4

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
American Airlines
7.2
Good
10,000 reviews
Qatar Airways
7.4
Good
3,584 reviews

Entertainment

7.4

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Lufthansa
6.8
Okay
7,136 reviews
Qatar Airways
7.4
Good
3,584 reviews

Entertainment

7.4

Crew

7.9

Overall

7.4

Comfort

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Related info for your journey

Find useful and relevant information for your journey from Istanbul to Ontario. 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 into for flights to Ontario from Istanbul?

    For a flight from Istanbul to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Istanbul per day. 0 airlines have flights to Ontario from Istanbul on a regular basis.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $735. Users have also found prices from $746 and $800 on Lufthansa and Qatar Airways, respectively.

  • Can I find deals for flights from Istanbul to Ontario that include hotel bookings?

    Yes. In addition to deals on Istanbul to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Istanbul to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Istanbul to Ontario.

  • Can I find deals for business class flights from Istanbul to Ontario?

    Yes. Cheapflights offers flight deals from Istanbul to Ontario 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 Istanbul Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $246). Flying from Istanbul Airport to Ontario in March is currently the most expensive (average of $328). 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

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