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Cheap flights from Boston to Kolkata from ₹ 35,865

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
16 Jun — 23 Jun1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to Kolkata Netaji S. Chandra are usually found in September or November, booked 78 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap 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 11 June 2025.

Round-trip from

₹ 80,291

One-way from

₹ 35,865

Popular in

December

Cheapest in

September

Average price

₹ 112,561
Etihad Airways
  • Etihad Airways
  • 27/9-22/10
  • 3 total stops
  • 62h 35m total
  • Boston to Kolkata
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IndiGo
  • IndiGo
  • 1/9
  • 2 total stops
  • 37h 10m total
  • Boston to Kolkata
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (₹ 690,511 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (₹ 346,848 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Boston to Kolkata

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 11 June 2025.

Sat 27/921:35BOS - CCU
2 stops35h 40mMultiple Airlines
Wed 22/1021:30CCU - BOS
1 stop26h 55mMultiple Airlines
Deal found 10/6₹ 80,291
Sun 29/621:35BOS - CCU
2 stops34h 45mIndiGo
Wed 16/702:00CCU - BOS
2 stops27h 10mIndiGo
Deal found 9/6₹ 89,535
Sat 27/913:00BOS - CCU
2 stops30h 15mAmerican Airlines
Wed 22/1018:00CCU - BOS
2 stops31h 41mAmerican Airlines
Deal found 10/6₹ 95,014
Tue 15/721:40BOS - CCU
2 stops24h 30mSWISS
Wed 6/820:30CCU - BOS
2 stops32h 55mSWISS
Deal found 10/6₹ 96,469
Fri 28/1120:00BOS - CCU
2 stops28h 35mTurkish Airlines
Tue 16/1222:15CCU - BOS
2 stops30h 20mTurkish Airlines
Deal found 9/6₹ 99,893
Sun 13/720:05BOS - CCU
2 stops26h 05mLufthansa
Tue 12/822:45CCU - BOS
2 stops26h 25mLufthansa
Deal found 10/6₹ 100,749
Tue 23/922:00BOS - CCU
1 stop18h 50mQatar Airways
Thu 23/1003:50CCU - BOS
1 stop20h 45mQatar Airways
Deal found 11/6₹ 104,344
Sat 12/716:30BOS - CCU
1 stop18h 20mEtihad Airways
Wed 6/804:00CCU - BOS
1 stop20h 25mEtihad Airways
Deal found 10/6₹ 105,970
Tue 23/923:05BOS - CCU
1 stop23h 35mEmirates
Fri 24/1020:45CCU - BOS
1 stop26h 55mEmirates
Deal found 10/6₹ 109,052
Thu 9/1020:12BOS - CCU
2 stops40h 33mSingapore Airlines
Sun 26/1023:40CCU - BOS
2 stops49h 31mSingapore Airlines
Deal found 11/6₹ 110,507
Tue 8/719:40BOS - CCU
2 stops26h 20mBritish Airways
Mon 14/702:00CCU - BOS
2 stops27h 40mBritish Airways
Deal found 9/6₹ 118,981
Sat 27/919:25BOS - CCU
2 stops29h 50mKLM
Fri 24/1019:00CCU - BOS
2 stops28h 10mKLM
Deal found 10/6₹ 124,630

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 11 June 2025.
Use the filters below to find and compare flights from Boston to Kolkata that are best for you.

Fly from

Boston

Fly to

Kolkata

Route

Depart

Return

Price

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 27/9

21:35-18:45

2 stops35h 40m

Kolkata Netaji S. Chandra

Wed 22/10

21:30-14:55

1 stop26h 55m

₹ 80,291

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 29/6

21:35-17:50

2 stops34h 45m

Kolkata Netaji S. Chandra

Wed 16/7

02:00-19:40

2 stops27h 10m

₹ 89,535

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 27/9

13:00-04:45

2 stops30h 15m

Kolkata Netaji S. Chandra

Wed 22/10

18:00-16:11

2 stops31h 41m

₹ 95,014

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 15/7

21:40-07:40

2 stops24h 30m

Kolkata Netaji S. Chandra

Wed 6/8

20:30-19:55

2 stops32h 55m

₹ 96,469

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 28/11

20:00-11:05

2 stops28h 35m

Kolkata Netaji S. Chandra

Tue 16/12

22:15-18:05

2 stops30h 20m

₹ 99,893

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 13/7

20:05-07:40

2 stops26h 05m

Kolkata Netaji S. Chandra

Tue 12/8

22:45-15:40

2 stops26h 25m

₹ 100,749

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 23/9

22:00-02:20

1 stop18h 50m

Kolkata Netaji S. Chandra

Thu 23/10

03:50-15:05

1 stop20h 45m

₹ 104,344

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 12/7

16:30-20:20

1 stop18h 20m

Kolkata Netaji S. Chandra

Wed 6/8

04:00-14:55

1 stop20h 25m

₹ 105,970

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 23/9

23:05-08:10

1 stop23h 35m

Kolkata Netaji S. Chandra

Fri 24/10

20:45-14:10

1 stop26h 55m

₹ 109,052

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 9/10

20:12-22:15

2 stops40h 33m

Kolkata Netaji S. Chandra

Sun 26/10

23:40-15:41

2 stops49h 31m

₹ 110,507

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 21 results
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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?

Use this chart to determine the optimal time to book a return flight from Boston to Kolkata. Price data was last updated on 9 June 2025.

The best time to book flights from Boston to Kolkata is 78 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, September is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 120). Flying from Boston to Kolkata in October is currently the most expensive (average of ₹ 161). 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.

What is the cheapest time of day to fly from BOS to CCU?

Find hourly flight availability from Boston to Kolkata. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 June 2025.

It’s optimal to fly from Boston to Kolkata in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at midday.

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 7.0 - 356.0 inches per month. August is typically the wettest month, when rainfall can reach 356.0 mm. December is typically the driest time to visit Kolkata when rainfall is around 7.0 mm.

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 31.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

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 11 June 2025.
Emirates
8.1
Very Good
3,264 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.8

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very Good
3,264 reviews
Emirates
8.1
Very Good
3,264 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.8

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very Good
1,302 reviews
Emirates
8.1
Very Good
3,264 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.8

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very Good
3,264 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.8

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
SWISS
7.5
Good
1,623 reviews
Emirates
8.1
Very Good
3,264 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.8

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,584 reviews
Emirates
8.1
Very Good
3,264 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.8

Overall

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • What are the cheapest airlines flying from Boston to Kolkata round-trip?

    Currently priced at ₹ 89,535, IndiGo will fly you from Boston to Kolkata and back. In addition to IndiGo, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and SWISS - these airlines can fly you to your destination from ₹ 95,014 and ₹ 96,469, respectively. Users have found that IndiGo is 18% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at ₹ 35,865. American Airlines flights start at ₹ 38,776 while deals on Singapore Airlines start at ₹ 52,471 one-way.

  • 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, September is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 120). Flying from Boston to Kolkata in October is currently the most expensive (average of ₹ 161). 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.
Boston to Bagdogra flights

Top airline flying from Boston to Kolkata

Discover the top airline that operate flights from Boston to Kolkata. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 11 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest₹ 98,627Average₹ 117,009FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

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

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