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Cheap flights from Boston to Kolkata from ₹ 40,313

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
2 Aug — 9 Aug1
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 28 July 2025.

Round-trip from

₹ 72,147

One-way from

₹ 40,313

Popular in

December

Cheapest in

September

Average price

₹ 118,689
IndiGo
  • IndiGo
  • 10/9-17/9
  • 4 total stops
  • 74h 10m total
  • Boston to Kolkata
Search Deals
25/9
  • 25/9
  • 2 total stops
  • 45h 30m total
  • Boston to Kolkata
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (₹ 688,429 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 354,248 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 28 July 2025.

Wed 10/921:35BOS - CCU
2 stops40h 05mIndiGo
Wed 17/919:05CCU - BOS
2 stops34h 05mIndiGo
Deal found 27/7₹ 72,147
Wed 10/921:35BOS - CCU
2 stops40h 05mMultiple Airlines
Wed 17/904:00CCU - BOS
1 stop20h 25mMultiple Airlines
Deal found 27/7₹ 77,078
Thu 4/907:15BOS - CCU
2 stops27h 00mAir India
Sun 14/917:30CCU - BOS
2 stops29h 49mAir India
Deal found 27/7₹ 77,770
Fri 7/1120:00BOS - CCU
2 stops30h 05mTurkish Airlines
Sat 22/1118:30CCU - BOS
2 stops34h 05mTurkish Airlines
Deal found 26/7₹ 84,778
Wed 6/812:54BOS - CCU
2 stops30h 21mAmerican Airlines
Sun 8/318:00CCU - BOS
2 stops29h 10mAmerican Airlines
Deal found 26/7₹ 94,034
Wed 6/816:30BOS - CCU
1 stop25h 00mEtihad Airways
Sun 8/321:00CCU - BOS
1 stop28h 10mEtihad Airways
Deal found 26/7₹ 97,408

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 28 July 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

Wed 10/9

21:35-23:10

2 stops40h 05m

Kolkata Netaji S. Chandra

Wed 17/9

19:05-19:40

2 stops34h 05m

₹ 72,147

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 10/9

21:35-23:10

2 stops40h 05m

Kolkata Netaji S. Chandra

Wed 17/9

04:00-14:55

1 stop20h 25m

₹ 77,078

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 4/9

07:15-19:45

2 stops27h 00m

Kolkata Netaji S. Chandra

Sun 14/9

17:30-13:49

2 stops29h 49m

₹ 77,770

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 7/11

20:00-12:35

2 stops30h 05m

Kolkata Netaji S. Chandra

Sat 22/11

18:30-18:05

2 stops34h 05m

₹ 84,778

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 22/8

17:59-04:45

2 stops25h 16m

Kolkata Netaji S. Chandra

Mon 1/9

18:00-16:56

2 stops32h 26m

₹ 94,293

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 17/9

16:30-03:00

1 stop25h 00m

Kolkata Netaji S. Chandra

Sun 21/9

04:00-14:55

1 stop20h 25m

₹ 100,349

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 25/9

16:30-23:30

2 stops45h 30m

₹ 40,313

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 10/10

21:35-05:30

2 stops46h 25m

₹ 42,129

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 25/9

16:30-20:35

1 stop18h 35m

₹ 67,563

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 10/10

16:40-22:15

3 stops44h 05m

₹ 202,861

Flights are sorted by cheapest return flights first.

Deals found on 26/7

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 25 July 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.

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 28 July 2025.
Check out reviews from past customers who have flown with Singapore Airlines, Etihad Airways, andTurkish Airlines from Boston 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.
Singapore Airlines
8.1
Very Good
1,335 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.7

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,335 reviews
Singapore Airlines
8.1
Very Good
1,335 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.7

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Etihad Airways
7.4
Good
1,225 reviews
Singapore Airlines
8.1
Very Good
1,335 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.7

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Turkish Airlines
7.3
Good
3,917 reviews
Singapore Airlines
8.1
Very Good
1,335 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.7

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
American Airlines
7.2
Good
10,000 reviews
Singapore Airlines
8.1
Very Good
1,335 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.7

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
IndiGo
6.8
Okay
478 reviews
Singapore Airlines
8.1
Very Good
1,335 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.7

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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 ₹ 72,147, 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 Air India and Turkish Airlines - these airlines can fly you to your destination from ₹ 77,770 and ₹ 84,778, respectively. Users have found that IndiGo is 35% 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 ₹ 42,129. Etihad Airways flights start at ₹ 67,563 while deals on Singapore Airlines start at ₹ 202,861 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 28 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest₹ 99,675Average₹ 118,253FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

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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.

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