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$585+ Cheap flights from Boston (BOS) 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Kolkata Netaji S. Chandra are usually found in September or October, booked 47 days in advance, depart on a Wednesday 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 abril 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$864
(Trip.com)

One-way from

$585
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,159
Provider with most accurate pricing for Boston Logan Intl-Kolkata Netaji S. Chandra flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Kolkata Netaji S. Chandra flights.
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From Boston Logan Intl to Kolkata Netaji S. Chandra
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One-way flight from Boston Logan Intl to Kolkata Netaji S. Chandra
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Highest demand for flights based on searches. 6% potential increase in price ($91 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 29, 2025.

This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/128:15 pmBOS - CCU
2 stops27h 35mMultiple Airlines
jue. 6/195:30 amCCU - BOS
2 stops25h 00mMultiple Airlines
Deal found 4/28$864
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/412:50 pmBOS - CCU
2 stops30h 25mAmerican Airlines
vie. 5/166:00 pmCCU - BOS
2 stops26h 35mAmerican Airlines
Deal found 4/28$945
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/149:35 pmBOS - CCU
2 stops34h 45mIndiGo
mar. 8/2610:15 pmCCU - BOS
2 stops30h 55mIndiGo
Deal found 4/28$1,102
This oojo deal was found by Cheapflights users on 4/28. 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.
jue. 10/94:30 pmBOS - CCU
1 stop24h 50mEtihad Airways
sáb. 10/253:20 amCCU - BOS
1 stop21h 50mEtihad Airways
Deal found 4/28$1,107
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/318:00 pmBOS - CCU
2 stops29h 50mTurkish Airlines
vie. 1/236:30 pmCCU - BOS
2 stops34h 05mTurkish Airlines
Deal found 4/28$1,134
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/155:05 pmBOS - CCU
2 stops54h 25mSWISS
dom. 8/315:30 pmCCU - BOS
2 stops35h 55mSWISS
Deal found 4/29$1,227
This oojo deal was found by Cheapflights users on 4/28. 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.
vie. 9/2610:20 amBOS - CCU
2 stops47h 25mEmirates
vie. 10/249:45 amCCU - BOS
1 stop37h 55mEmirates
Deal found 4/28$1,307
This oojo deal was found by Cheapflights users on 4/29. 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.
sáb. 5/310:00 pmBOS - CCU
1 stop18h 50mQatar Airways
mié. 5/143:50 amCCU - BOS
1 stop20h 45mQatar Airways
Deal found 4/29$1,319
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/2611:15 amBOS - CCU
3 stops49h 30mSingapore Airlines
vie. 10/2411:30 pmCCU - BOS
2 stops39h 15mSingapore Airlines
Deal found 4/28$1,397
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/165:50 pmBOS - CCU
3 stops29h 40mLufthansa
vie. 5/309:20 pmCCU - BOS
3 stops31h 30mLufthansa
Deal found 4/28$1,478
This Gurufare deal was found by Cheapflights users on 4/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/237:40 pmBOS - CCU
2 stops29h 20mBritish Airways
lun. 7/286:20 amCCU - BOS
2 stops44h 20mBritish Airways
Deal found 4/28$1,508

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated abril 29, 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

jue. 6/12

8:15 pm-9:20 am

2 stops27h 35m

Kolkata Netaji S. Chandra

jue. 6/19

5:30 am-9:00 pm

2 stops25h 00m

$864

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

dom. 5/4

12:50 pm-4:45 am

2 stops30h 25m

Kolkata Netaji S. Chandra

vie. 5/16

6:00 pm-11:05 am

2 stops26h 35m

$945

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

dom. 5/4

4:30 pm-8:20 pm

1 stop18h 20m

Kolkata Netaji S. Chandra

jue. 5/15

3:45 am-2:55 pm

1 stop20h 40m

$1,151

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

jue. 6/12

9:35 pm-12:15 pm

2 stops29h 10m

Kolkata Netaji S. Chandra

dom. 7/6

10:30 pm-7:40 pm

2 stops30h 40m

$1,205

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

jue. 5/15

5:05 pm-9:00 am

2 stops54h 25m

Kolkata Netaji S. Chandra

dom. 8/31

5:30 pm-7:55 pm

2 stops35h 55m

$1,227

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

sáb. 5/3

10:00 pm-2:20 am

1 stop18h 50m

Kolkata Netaji S. Chandra

mié. 5/14

3:50 am-3:05 pm

1 stop20h 45m

$1,319

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

mar. 6/24

9:35 pm-12:55 pm

2 stops29h 50m

Kolkata Netaji S. Chandra

sáb. 7/26

10:30 pm-7:40 pm

2 stops30h 40m

$1,442

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

vie. 5/16

5:50 pm-9:00 am

3 stops29h 40m

Kolkata Netaji S. Chandra

vie. 5/30

9:20 pm-7:20 pm

3 stops31h 30m

$1,478

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

lun. 7/7

11:05 pm-7:15 pm

1 stop34h 40m

Kolkata Netaji S. Chandra

mar. 8/5

9:45 am-2:10 pm

1 stop37h 55m

$1,506

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

lun. 6/23

7:40 pm-10:30 am

2 stops29h 20m

Kolkata Netaji S. Chandra

lun. 7/28

6:20 am-5:10 pm

2 stops44h 20m

$1,508

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 16 results
1
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Compare providers for flights from Boston to Kolkata

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Kolkata in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Kolkata flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Kolkata flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Kolkata flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Kolkata flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 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 round-trip flight from Boston to Kolkata. Price data was last updated on April 25, 2025.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Kolkata. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $978). Flying from Boston 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.

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 abril 29, 2025.

It’s typically best to fly out from Boston to Kolkata at noon. Doing so could potentially save you 5% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Boston to Kolkata?

Use this chart to determine the cheapest time to fly round-trip from Boston to Kolkata. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Kolkata flight should consider departing on Monday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 0.3 - 14.0 inches per month. August is typically the wettest month, when rainfall can reach 14.0 in. December is typically the driest time to visit Kolkata when rainfall is around 0.3 in.

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 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 abril 29, 2025.
Singapore Airlines
8.1
Very good
1,292 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,292 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very good
3,213 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
SWISS
7.5
Good
1,588 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,563 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Etihad Airways
7.4
Good
1,203 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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?

    According to our current data, American Airlines ($945), Etihad Airways ($1,151), and IndiGo ($1,205) offers the cheapest pricing from Boston to Kolkata. American Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $653. IndiGo flights start at $762 while deals on Air France start at $868 one-way.

  • Where are the most common layover locations when flying from Boston to Kolkata?

    Most of the time, Boston to Kolkata flights that have layovers will stop in Abu Dhabi.

  • What are some popular things to do or see while on a layover in Abu Dhabi?

    Abu Dhabi travelers tend to visit Emirates Palace, Emirates Park Zoo, and Sheikh Zayed Mosque more than anywhere else. Emirates Palace, Emirates Park Zoo, and Sheikh Zayed Mosque can be accessed by traveling approximately 21.1 mi, 7.9 mi, and 11.2 mi, respectively from Abu Dhabi Zayed Intl. Travelers can rent a car at Abu Dhabi Zayed Intl for an average daily rate of $23 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Boston to Kolkata flights?

    The least popular layover on flights from Boston to Kolkata is Doha.

  • 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 vacation 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 $978). Flying from Boston 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

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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 7 airlines flying from Boston to Kolkata

Discover the top 7 airlines 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 2,558,603 searches. Data last updated abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$920Average$1,197FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$923Average$1,285FlexibilityNo cancel feeOn-time71%
IndiGoCheapest$981Average$1,245FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$995Average$1,386FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,063Average$1,329FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$1,127Average$1,261FlexibilityNo cancel feeOn-time76%
SWISSCheapest$1,147Average$1,282FlexibilityNo cancel feeOn-time79%

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