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Cheap flights from Boston to Kolkata from ₹ 45,027

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
30 May — 6 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Kolkata

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Kolkata
Explore the most affordable flight options available from Boston to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2026.

Tue 26/516:25
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Wed 22/721:30
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 27/4₹ 84,460
Wed 9/916:25
BOS
-
CCU
1 stop25h 05m
Etihad Airways
Fri 25/904:10
CCU
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 28/4₹ 88,442
Wed 7/1016:25
BOS
-
CCU
1 stop25h 05m
Etihad Airways
Mon 16/1120:55
CCU
-
BOS
1 stop27h 45m
Etihad Airways
Deal found 28/4₹ 88,536
Wed 9/916:25
BOS
-
CCU
1 stop25h 05m
Etihad Airways
Wed 30/921:30
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 28/4₹ 88,631
Sun 4/1022:00
BOS
-
CCU
1 stop19h 00m
Qatar Airways
Tue 10/1103:25
CCU
-
BOS
1 stop21h 25m
Qatar Airways
Deal found 27/4₹ 89,295
Tue 29/922:00
BOS
-
CCU
1 stop19h 00m
Qatar Airways
Wed 11/1103:25
CCU
-
BOS
1 stop21h 25m
Qatar Airways
Deal found 29/4₹ 91,096
Tue 8/921:50
BOS
-
CCU
2 stops32h 00m
Multiple Airlines
Wed 30/921:00
CCU
-
BOS
2 stops32h 25m
Multiple Airlines
Deal found 28/4₹ 91,380
Tue 12/517:05
BOS
-
CCU
2 stops47h 10m
Multiple Airlines
Mon 5/1008:25
CCU
-
BOS
2 stops38h 45m
Multiple Airlines
Deal found 28/4₹ 91,665
Tue 29/916:25
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Mon 16/1120:55
CCU
-
BOS
1 stop27h 45m
Etihad Airways
Deal found 29/4₹ 91,759
Sat 29/816:25
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Thu 29/1003:35
CCU
-
BOS
1 stop21h 05m
Etihad Airways
Deal found 29/4₹ 91,949
Thu 14/516:25
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Wed 27/521:30
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 28/4₹ 92,328

Find flight deals from Boston to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 30 April 2026.

Round-trip from

₹ 84,460

One-way from

₹ 45,027

Popular in

December

Cheapest in

January

Average price

₹ 102,945
Etihad Airways
  • Etihad Airways
  • 26/5-22/7
  • 2 total stops
  • 45h 15m total
  • Boston to Kolkata
Search Deals
25/8
  • 25/8
  • 2 total stops
  • 27h 05m total
  • Boston to Kolkata
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (₹ 817,635 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 366,610 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Boston 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 454,620 searches. Data last updated 30 April 2026.
Use the filters below to find and compare flights from Boston to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 13/10

21:50-16:55

2 stops33h 35m

Kolkata Netaji S. Chandra

Sat 24/10

21:00-19:05

2 stops31h 35m

₹ 96,594
Fastest return journey

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 23/9

22:00-02:30

1 stop19h 00m

Kolkata Netaji S. Chandra

Sun 27/9

04:00-15:15

1 stop20h 45m

₹ 114,225

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 2/6

23:05-08:10

1 stop23h 35m

Kolkata Netaji S. Chandra

Wed 17/6

09:50-14:10

1 stop37h 50m

₹ 127,496

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 1/6

23:05-08:10

1 stop23h 35m

Kolkata Netaji S. Chandra

Wed 24/6

20:55-14:10

1 stop26h 45m

₹ 127,496

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 1/6

23:05-08:10

1 stop23h 35m

Kolkata Netaji S. Chandra

Fri 12/6

20:55-14:10

1 stop26h 45m

₹ 127,496

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 1/6

23:05-08:10

1 stop23h 35m

Kolkata Netaji S. Chandra

Tue 23/6

09:50-14:10

1 stop37h 50m

₹ 127,496

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 20/7

23:05-19:15

1 stop34h 40m

Kolkata Netaji S. Chandra

Fri 4/9

20:55-14:10

1 stop26h 45m

₹ 129,676

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 23/9

21:50-12:50

2 stops29h 30m

Kolkata Netaji S. Chandra

Sun 27/9

18:45-19:55

2 stops34h 40m

₹ 129,961

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 30/5

23:05-08:10

1 stop23h 35m

Kolkata Netaji S. Chandra

Tue 21/7

09:50-14:10

1 stop37h 50m

₹ 132,236
Cheapest one-way
Fastest single journey

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 5/5

16:25-20:30

1 stop18h 35m

₹ 48,723

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Boston to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from Boston with our price prediction graph.
Estimated return 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 Boston to Kolkata

How far ahead should I book a flight from Boston to Kolkata?

The best time to book flights from Boston to Kolkata is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 99,722). Flying from Boston to Kolkata in December is currently the most expensive (average of ₹ 161,337). 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.

How much does it cost for a return flight from Boston to Kolkata?

Related info for your journey

Find useful and relevant information for your journey from Boston 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 Boston to Kolkata?

    Qatar Airways can get you from Boston to Kolkata in just under 19h. Your travel time can differ by up to . The distance from Boston to Kolkata is about 12476 km.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 99,722). Flying from Boston to Kolkata in December is currently the most expensive (average of ₹ 161,337). 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

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Alternative routes for Boston to Kolkata

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to Kolkata?

Cheapflights makes it easy to find Boston to Kolkata flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Boston to Kolkata?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Kolkata.

Can Cheapflights find flights from Boston to Kolkata with no change fees?

Need flexible booking options for your flight to Kolkata from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Kolkata become cheaper?

Of course! You can now track prices for flights from Boston to Kolkata and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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