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$610+ Cheap flights from Ontario (ONT) to Kolkata (CCU)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CCU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Ontario to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kolkata (CCU). 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 September 17, 2025.

Round-trip from

$1,134
(Trip.com)

One-way from

$610
(oojo)

Popular in

December

Cheapest in

March

Average price

$1,141
From Ontario to Kolkata Netaji S. Chandra
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One-way flight from Ontario to Kolkata Netaji S. Chandra
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Highest demand for flights based on searches. 12% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Kolkata

Cheapest flights from Ontario to Kolkata
Explore the most affordable flight options available from Ontario to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This oojo deal was found by Cheapflights users on 9/17. 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.
Sun 9/2110:56 pmONT - CCU
2 stops40h 49mAir India
Tue 9/307:55 pmCCU - ONT
2 stops38h 04mAir India
Deal found 9/17$1,067
This oojo deal was found by Cheapflights users on 9/17. 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.
Tue 9/2310:56 pmONT - CCU
2 stops29h 24mAir India
Thu 10/27:00 amCCU - ONT
2 stops50h 59mAir India
Deal found 9/17$1,078
This Etihad Airways deal was found by Cheapflights users on 9/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:56 pmONT - CCU
2 stops39h 34mEtihad Airways
Mon 10/204:00 amCCU - ONT
2 stops53h 59mEtihad Airways
Deal found 9/15$1,146
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:10 amONT - CCU
2 stops59h 19mMultiple Airlines
Fri 10/2412:30 amCCU - ONT
2 stops30h 00mMultiple Airlines
Deal found 9/14$1,207
This Etihad Airways deal was found by Cheapflights users on 9/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:56 pmONT - CCU
2 stops39h 34mEtihad Airways
Mon 10/204:00 amCCU - ONT
2 stops53h 59mEtihad Airways
Deal found 9/15$1,246
This FlightHub deal was found by Cheapflights users on 9/14. 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 10/1410:56 pmONT - CCU
2 stops33h 54mEtihad Airways
Tue 10/214:00 amCCU - ONT
2 stops29h 59mEtihad Airways
Deal found 9/14$1,273
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2212:10 amONT - CCU
3 stops33h 40mMultiple Airlines
Thu 10/28:20 pmCCU - ONT
2 stops34h 10mMultiple Airlines
Deal found 9/17$1,281
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2012:10 amONT - CCU
3 stops33h 40mMultiple Airlines
Tue 9/308:20 pmCCU - ONT
2 stops34h 10mMultiple Airlines
Deal found 9/17$1,323
This Etihad Airways deal was found by Cheapflights users on 9/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:56 pmONT - CCU
2 stops33h 09mEtihad Airways
Fri 10/244:00 amCCU - ONT
2 stops29h 59mEtihad Airways
Deal found 9/15$1,341
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1312:10 amONT - CCU
3 stops34h 50mMultiple Airlines
Mon 10/202:00 amCCU - ONT
2 stops28h 30mMultiple Airlines
Deal found 9/14$1,342

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kolkata 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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Kolkata that are best for you.

Fly from

Ontario

Fly to

Kolkata

Route

Depart

Return

Price

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sun 1/18

10:50 pm-12:40 am

2 stops36h 20m

Kolkata Netaji S. Chandra

Mon 3/30

2:00 am-6:00 pm

2 stops28h 30m

$1,134

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 10/8

10:56 pm-3:00 am

2 stops39h 34m

Kolkata Netaji S. Chandra

Mon 10/20

4:00 am-9:29 pm

2 stops53h 59m

$1,146

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Mon 10/13

12:10 am-11:30 pm

3 stops34h 50m

Kolkata Netaji S. Chandra

Mon 10/20

2:00 am-6:00 pm

2 stops28h 30m

$1,342

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 10/30

7:35 am-12:40 am

3 stops28h 35m

Kolkata Netaji S. Chandra

Wed 11/5

12:30 am-4:50 pm

3 stops29h 50m

$1,435

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 10/8

10:56 pm-8:35 pm

2 stops33h 09m

Kolkata Netaji S. Chandra

Sun 10/19

9:30 pm-9:29 pm

2 stops36h 29m

$1,647

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 10/10

10:56 pm-8:35 pm

2 stops33h 09m

Kolkata Netaji S. Chandra

Sat 10/18

4:00 am-9:29 pm

2 stops29h 59m

$1,819

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Mon 2/2

10:57 am-1:55 am

2 stops25h 28m

Kolkata Netaji S. Chandra

Wed 3/4

3:25 am-5:51 pm

2 stops27h 56m

$1,856

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 10/9

10:56 pm-8:35 pm

2 stops33h 09m

Kolkata Netaji S. Chandra

Sat 10/18

4:00 am-9:29 pm

2 stops29h 59m

$1,914

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 10/2

10:56 pm-8:35 pm

2 stops33h 09m

Kolkata Netaji S. Chandra

Wed 10/15

9:30 pm-9:29 pm

2 stops36h 29m

$1,985

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 11/21

2:59 pm-1:55 am

2 stops45h 26m

Kolkata Netaji S. Chandra

Thu 12/11

3:25 am-1:55 pm

2 stops48h 00m

$2,000

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata 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 Kolkata

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Kolkata (average of $977). Flying from Ontario to Kolkata in December is currently the most expensive (average of $1,647). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Kolkata. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Kolkata?

    For as low as $1,146, Etihad Airways can have you in Kolkata from Ontario in 39h 34m. The distance between Ontario and Kolkata is about 8155 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Kolkata 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 Kolkata?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Kolkata (average of $977). Flying from Ontario to Kolkata in December is currently the most expensive (average of $1,647). 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.

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