HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kolkata

$589+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CCU
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Kolkata with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 3, 2025.

Round-trip from

$1,110
(oojo)

One-way from

$589
(Trip.com)

Popular in

December

Cheapest in

March

Average price

$1,385
From Ontario to Kolkata Netaji S. Chandra
Search Deals
One-way flight from Ontario to Kolkata Netaji S. Chandra
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($171 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 3, 2025.

This oojo deal was found by Cheapflights users on 7/2. 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 8/1111:59 pmONT - CCU
2 stops32h 06mEtihad Airways
Mon 9/159:30 pmCCU - ONT
2 stops36h 29mEtihad Airways
Deal found 7/2$1,110
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Wed 10/2212:10 amONT - CCU
3 stops34h 30mMultiple Airlines
Mon 11/108:05 pmCCU - ONT
2 stops34h 15mMultiple Airlines
Deal found 7/1$1,424
This Qatar Airways deal was found by Cheapflights users on 7/2. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:55 amONT - CCU
2 stops26h 55mQatar Airways
Sun 9/213:50 amCCU - ONT
2 stops27h 34mQatar Airways
Deal found 7/2$1,926
This Indian Eagle deal was found by Cheapflights users on 7/2. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:46 amONT - CCU
3 stops33h 19mBritish Airways
Thu 2/57:15 pmCCU - ONT
3 stops40h 17mBritish Airways
Deal found 7/2$4,965
This Fareboom deal was found by Cheapflights users on 7/2. 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.
Thu 11/61:40 pmONT - CCU
2 stops30h 20mAir India
Thu 2/59:20 pmCCU - ONT
2 stops38h 36mAir India
Deal found 7/2$6,410

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 July 3, 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

Mon 8/11

11:59 pm-8:35 pm

2 stops32h 06m

Kolkata Netaji S. Chandra

Mon 9/15

9:30 pm-9:29 pm

2 stops36h 29m

$1,110

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 10/22

12:10 am-11:10 pm

3 stops34h 30m

Kolkata Netaji S. Chandra

Mon 11/10

8:05 pm-4:50 pm

2 stops34h 15m

$1,424

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 9/18

10:55 am-2:20 am

2 stops26h 55m

Kolkata Netaji S. Chandra

Sun 9/21

3:50 am-6:54 pm

2 stops27h 34m

$1,926

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 11/6

8:46 am-7:35 am

3 stops33h 19m

Kolkata Netaji S. Chandra

Thu 2/5

7:15 pm-10:02 pm

3 stops40h 17m

$4,965

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 11/6

1:40 pm-9:30 am

2 stops30h 20m

Kolkata Netaji S. Chandra

Thu 2/5

9:20 pm-10:26 pm

2 stops38h 36m

$6,410

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Tue 8/19

12:45 am-4:20 am

2 stops39h 05m

$589

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 8/20

11:59 pm-8:35 pm

2 stops32h 06m

$746

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 8/14

2:31 pm-2:20 am

2 stops47h 19m

$1,021

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 $963). 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.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Qatar Airways, Etihad Airways, and British Airways from Ontario to Kolkata to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,588 reviews

Crew

7.9

Food

7.3

Entertainment

7.4

Comfort

7.4

Boarding

7.5

Overall

7.4

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
3,588 reviews
Qatar Airways
7.4
Good
3,588 reviews

Crew

7.9

Food

7.3

Entertainment

7.4

Comfort

7.4

Boarding

7.5

Overall

7.4

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
1,224 reviews
Qatar Airways
7.4
Good
3,588 reviews

Crew

7.9

Food

7.3

Entertainment

7.4

Comfort

7.4

Boarding

7.5

Overall

7.4

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
7,093 reviews
Qatar Airways
7.4
Good
3,588 reviews

Crew

7.9

Food

7.3

Entertainment

7.4

Comfort

7.4

Boarding

7.5

Overall

7.4

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
2,926 reviews
Qatar Airways
7.4
Good
3,588 reviews

Crew

7.9

Food

7.3

Entertainment

7.4

Comfort

7.4

Boarding

7.5

Overall

7.4

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.

  • 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 $963). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.