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$722+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CCU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$1,230
(oojo)

One-way from

$722
(oojo)

Popular in

December

Cheapest in

March

Average price

$1,505
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 ($182 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($40 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 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 June 12, 2025.

This oojo deal was found by Cheapflights users on 6/10. 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.
Sat 9/2710:56 pmONT - CCU
2 stops33h 09mEtihad Airways
Sat 10/114:00 amCCU - ONT
2 stops29h 59mEtihad Airways
Deal found 6/10$1,230
This Trip.com deal was found by Cheapflights users on 6/10. 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.
Wed 7/912:45 amONT - CCU
2 stops36h 20mMultiple Airlines
Wed 8/132:35 amCCU - ONT
2 stops28h 35mMultiple Airlines
Deal found 6/10$1,409
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:00 amONT - CCU
2 stops25h 15mQatar Airways
Sun 12/213:20 amCCU - ONT
2 stops27h 58mQatar Airways
Deal found 6/11$2,014
This Fareboom 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:39 pmONT - CCU
2 stops37h 21mAir India
Wed 10/1510:25 amCCU - ONT
2 stops38h 18mAir India
Deal found 6/11$6,340

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 June 12, 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

Sat 9/27

10:56 pm-8:35 pm

2 stops33h 09m

Kolkata Netaji S. Chandra

Sat 10/11

4:00 am-9:29 pm

2 stops29h 59m

$1,230

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 7/9

12:45 am-1:35 am

2 stops36h 20m

Kolkata Netaji S. Chandra

Wed 8/13

2:35 am-6:40 pm

2 stops28h 35m

$1,409

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Mon 11/24

11:00 am-1:45 am

2 stops25h 15m

Kolkata Netaji S. Chandra

Sun 12/21

3:20 am-5:48 pm

2 stops27h 58m

$2,014

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 8/6

6:39 pm-8:30 pm

2 stops37h 21m

Kolkata Netaji S. Chandra

Wed 10/15

10:25 am-12:13 pm

2 stops38h 18m

$6,340

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Mon 8/11

11:45 pm-8:35 pm

2 stops32h 20m

$722

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 7/10

6:25 am-12:45 am

3 stops29h 50m

$864

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 7/10

10:53 am-2:20 am

2 stops26h 57m

$1,268

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 8/6

6:39 pm-8:30 pm

2 stops37h 21m

$3,405

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 8/6

6:10 am-9:20 am

3 stops38h 40m

$4,682

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 $970). 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.

Rainfall in Kolkata by month

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

In terms of precipitation, rainfall in Kolkata ranges from 0.3 - 14.0 inches per month. August is typically the wettest month, when rainfall can reach 14.0 in. December is typically the driest time to visit Kolkata when rainfall is around 0.3 in.

Temperature in Kolkata by month

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

If weather is an important factor for your trip to Kolkata, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Kolkata

Get insights into the airlines that provide service to Kolkata. 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 Kolkata. Reviews last updated June 12, 2025.
See what other customers who have flown with Qatar Airways, Etihad Airways and British Airways from Ontario to Kolkata have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,584 reviews

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Crew

7.9

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

DOH - AMD

Disaster boarding process. No gates. No annoncement for boarding process. Waiting area seats were full no seats available. 787 dream liner step up to entrance door. Not acceptable for physically poor but normal people.
Qatar Airways
7.4
Good
3,584 reviews
Qatar Airways
7.4
Good
3,584 reviews

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Crew

7.9

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

DOH - AMD

Disaster boarding process. No gates. No annoncement for boarding process. Waiting area seats were full no seats available. 787 dream liner step up to entrance door. Not acceptable for physically poor but normal people.
Etihad Airways
7.4
Good
1,211 reviews
Qatar Airways
7.4
Good
3,584 reviews

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Crew

7.9

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

DOH - AMD

Disaster boarding process. No gates. No annoncement for boarding process. Waiting area seats were full no seats available. 787 dream liner step up to entrance door. Not acceptable for physically poor but normal people.
British Airways
6.6
Okay
7,008 reviews
Qatar Airways
7.4
Good
3,584 reviews

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Crew

7.9

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

DOH - AMD

Disaster boarding process. No gates. No annoncement for boarding process. Waiting area seats were full no seats available. 787 dream liner step up to entrance door. Not acceptable for physically poor but normal people.
Air India
5.5
Fair
2,914 reviews
Qatar Airways
7.4
Good
3,584 reviews

Overall

7.4

Entertainment

7.4

Comfort

7.4

Food

7.3

Boarding

7.5

Crew

7.9

Reviews

1 / 20
4.0
Okay

Janak,Oct 2023

DOH - AMD

Disaster boarding process. No gates. No annoncement for boarding process. Waiting area seats were full no seats available. 787 dream liner step up to entrance door. Not acceptable for physically poor but normal people.

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.

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

    $722 is the cheapest one-way deal found within the past few days, from Etihad Airways. You may also be able to find cheap deals on Qatar Airways and Air India, with prices starting from $1,268 and $3,405, respectively.

  • 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 $970). 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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