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Cheap flights from Ontario to Kolkata from $688

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Kolkata departing on 8/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Kolkata

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:00 pm - 2:30 am
ONT
-
CCU
26h 00m
2 stops
Multiple Airlines Logo
4:00 am - 7:03 pm
CCU
-
ONT
27h 33m
2 stops
$1,315Multiple Airlines
Sun, Aug 30 - Fri, Sep 11
Qatar Airways Logo
6:00 am - 2:30 am
ONT
-
CCU
32h 00m
2 stops
Qatar Airways Logo
3:25 am - 10:54 pm
CCU
-
ONT
32h 59m
2 stops
$1,370Qatar Airways
Sat, Oct 17 - Mon, Nov 9
Qatar Airways Logo
6:54 pm - 2:30 am
ONT
-
CCU
43h 06m
2 stops
Qatar Airways Logo
3:25 am - 10:54 pm
CCU
-
ONT
32h 59m
2 stops
$1,378Qatar Airways
Fri, Oct 16 - Mon, Nov 9
Multiple Airlines Logo
6:02 am - 2:30 am
ONT
-
CCU
31h 58m
2 stops
Multiple Airlines Logo
4:00 am - 7:03 pm
CCU
-
ONT
27h 33m
2 stops
$1,427Multiple Airlines
Thu, Sep 10 - Sat, Sep 19
Qatar Airways Logo
6:00 am - 2:30 am
ONT
-
CCU
32h 00m
2 stops
Qatar Airways Logo
3:25 am - 10:54 pm
CCU
-
ONT
32h 59m
2 stops
$1,438Qatar Airways
Sat, Oct 17 - Sun, Nov 8
Qatar Airways Logo
6:00 am - 2:30 am
ONT
-
CCU
32h 00m
2 stops
Qatar Airways Logo
3:25 am - 11:18 am
CCU
-
ONT
45h 23m
2 stops
$1,446Qatar Airways
Sat, Oct 17 - Thu, Nov 12
Qatar Airways Logo
6:00 am - 2:30 am
ONT
-
CCU
32h 00m
2 stops
Qatar Airways Logo
3:25 am - 10:54 pm
CCU
-
ONT
32h 59m
2 stops
$1,478Qatar Airways
Sat, Oct 17 - Sat, Nov 7
Qatar Airways Logo
5:26 pm - 2:30 am
ONT
-
CCU
44h 34m
2 stops
Qatar Airways Logo
4:00 am - 6:47 pm
CCU
-
ONT
27h 17m
2 stops
$1,542Qatar Airways
Mon, Aug 3 - Tue, Sep 1
Multiple Airlines Logo
12:10 am - 11:50 pm
ONT
-
CCU
35h 10m
2 stops
Multiple Airlines Logo
1:00 am - 5:05 pm
CCU
-
ONT
28h 35m
2 stops
$1,606Multiple Airlines
Thu, Oct 15 - Fri, Oct 23
Qatar Airways Logo
6:02 am - 2:30 am
ONT
-
CCU
31h 58m
2 stops
Qatar Airways Logo
4:00 am - 7:03 pm
CCU
-
ONT
27h 33m
2 stops
$1,638Qatar Airways
Fri, Sep 18 - Tue, Sep 22

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Qatar Airways flights from Ontario to Kolkata

Our best Qatar Airways deals on Ontario to Kolkata flight tickets
Qatar Airways
Oct 17
ONT6:00 amOntario
32h 00m
2 stops
CCU2:30 amKolkata Netaji S. Chandra
Nov 9
CCU3:25 amKolkata Netaji S. Chandra
32h 59m
2 stops
ONT10:54 pmOntario
$1,370
Qatar Airways
Oct 16
ONT6:54 pmOntario
43h 06m
2 stops
CCU2:30 amKolkata Netaji S. Chandra
Nov 9
CCU3:25 amKolkata Netaji S. Chandra
32h 59m
2 stops
ONT10:54 pmOntario
$1,378
Qatar Airways
Oct 17
ONT6:00 amOntario
32h 00m
2 stops
CCU2:30 amKolkata Netaji S. Chandra
Nov 8
CCU3:25 amKolkata Netaji S. Chandra
32h 59m
2 stops
ONT10:54 pmOntario
$1,438

Air India flights from Ontario to Kolkata

Our best Air India deals on Ontario to Kolkata flight tickets
Air India
Jun 13
ONT11:16 pmOntario
30h 49m
2 stops
CCU6:35 pmKolkata Netaji S. Chandra
Jun 30
CCU7:00 amKolkata Netaji S. Chandra
52h 13m
3 stops
ONT10:43 pmOntario
$2,179
Air India
Jul 6
ONT11:47 pmOntario
30h 18m
2 stops
CCU6:35 pmKolkata Netaji S. Chandra
Jul 13
CCU4:10 pmKolkata Netaji S. Chandra
42h 55m
3 stops
ONT10:35 pmOntario
$2,302
Air India
Jul 7
ONT11:49 pmOntario
30h 16m
2 stops
CCU6:35 pmKolkata Netaji S. Chandra
Jul 22
CCU7:15 pmKolkata Netaji S. Chandra
63h 51m
3 stops
ONT10:36 pmOntario
$2,409

momondo 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, momondo users made 832,500 searches. Data last updated June 10, 2026.
Use the filters below to find and compare flights from Ontario to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sun 8/30

12:00 pm-2:30 am

2 stops26h 00m

Kolkata Netaji S. Chandra

Fri 9/11

4:00 am-7:03 pm

2 stops27h 33m

$1,315

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sat 10/17

6:00 am-2:30 am

2 stops32h 00m

Kolkata Netaji S. Chandra

Mon 11/9

3:25 am-10:54 pm

2 stops32h 59m

$1,370

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 10/16

6:54 pm-2:30 am

2 stops43h 06m

Kolkata Netaji S. Chandra

Mon 11/9

3:25 am-10:54 pm

2 stops32h 59m

$1,378

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 9/10

6:02 am-2:30 am

2 stops31h 58m

Kolkata Netaji S. Chandra

Sat 9/19

4:00 am-7:03 pm

2 stops27h 33m

$1,427

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sat 10/17

6:00 am-2:30 am

2 stops32h 00m

Kolkata Netaji S. Chandra

Sun 11/8

3:25 am-10:54 pm

2 stops32h 59m

$1,438

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sat 10/17

6:00 am-2:30 am

2 stops32h 00m

Kolkata Netaji S. Chandra

Thu 11/12

3:25 am-11:18 am

2 stops45h 23m

$1,446

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sat 10/17

6:00 am-2:30 am

2 stops32h 00m

Kolkata Netaji S. Chandra

Sat 11/7

3:25 am-10:54 pm

2 stops32h 59m

$1,478

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Mon 8/3

5:26 pm-2:30 am

2 stops44h 34m

Kolkata Netaji S. Chandra

Tue 9/1

4:00 am-6:47 pm

2 stops27h 17m

$1,542

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 10/15

12:10 am-11:50 pm

2 stops35h 10m

Kolkata Netaji S. Chandra

Fri 10/23

1:00 am-5:05 pm

2 stops28h 35m

$1,606

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 9/18

6:02 am-2:30 am

2 stops31h 58m

Kolkata Netaji S. Chandra

Tue 9/22

4:00 am-7:03 pm

2 stops27h 33m

$1,638

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kolkata from

How to get the cheapest flight ticket from Ontario to Kolkata

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Kolkata?

On average, the least expensive day to fly to Kolkata from Ontario is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,068. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Kolkata on Saturday is $1,234.

When to book flights from Ontario to Kolkata

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Kolkata according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Kolkata (ONT to CCU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Kolkata

Fastest flight time

25h 56m

Direct flights

None
The fastest flight from Ontario to Kolkata takes 25h 56m
There are no direct flights from Ontario to Kolkata. There are no popular flight routes from Ontario to Kolkata.
Search flight deals

Frequently asked questions about flying from Ontario to Kolkata

  • How far is Ontario to Kolkata Netaji S. Chandra by plane?

    The distance between Ontario and Kolkata Netaji S. Chandra is about 8161.4 mi. Flights usually cover this in 25h 56m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Kolkata Netaji S. Chandra Airport?

    Prices for flights from Ontario Airport to Kolkata Netaji S. Chandra Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport to Kolkata Netaji S. Chandra Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Kolkata Netaji S. Chandra Airport.

  • What documentation or ID do you need to fly to Kolkata Netaji S. Chandra Airport?

    The travel and health documents required for your trip to Kolkata Netaji S. Chandra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kolkata Netaji S. Chandra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Kolkata?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Kolkata. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Kolkata with flexible booking policies on momondo?

Flights from Ontario to Kolkata with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Kolkata?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Kolkata.

I’m not ready to book a flight from Ontario to Kolkata right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kolkata, momondo offers a useful price alert feature which will track prices for flights to Kolkata from Ontario and alert you when they change.

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