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$404+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap 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 March 11, 2026.

This Trip.com deal was found by Cheapflights users on 3/9. 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.
Tue 3/314:25 pm
BOS
-
CCU
2 stops23h 20m
Multiple Airlines
Mon 4/65:50 am
CCU
-
BOS
2 stops42h 20m
Multiple Airlines
Deal found 3/9$814
This deal was found by Cheapflights users on 3/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/294:25 pm
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Tue 4/144:10 am
CCU
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 3/9$868
This deal was found by Cheapflights users on 3/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/294:25 pm
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Tue 4/74:10 am
CCU
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 3/9$871
This oojo deal was found by Cheapflights users on 3/8. 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.
Tue 3/244:40 pm
BOS
-
CCU
1 stop17h 50m
Etihad Airways
Wed 4/89:30 pm
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 3/8$873
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:25 pm
BOS
-
CCU
1 stop25h 05m
Etihad Airways
Mon 6/89:30 pm
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 3/9$892
This FlightHub deal was found by Cheapflights users on 3/7. 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.
Wed 3/254:40 pm
BOS
-
CCU
1 stop24h 30m
Etihad Airways
Fri 4/39:30 pm
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 3/7$895
This oojo deal was found by Cheapflights users on 3/8. 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.
Mon 3/169:40 pm
BOS
-
CCU
1 stop18h 45m
Qatar Airways
Mon 3/233:25 am
CCU
-
BOS
1 stop21h 00m
Qatar Airways
Deal found 3/8$898
This Indian Eagle deal was found by Cheapflights users on 3/6. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/229:40 pm
BOS
-
CCU
1 stop18h 45m
Qatar Airways
Fri 4/34:00 am
CCU
-
BOS
1 stop20h 45m
Qatar Airways
Deal found 3/6$899
This Indian Eagle deal was found by Cheapflights users on 3/9. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:40 pm
BOS
-
CCU
1 stop17h 50m
Etihad Airways
Mon 3/309:30 pm
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 3/9$900
This Justfly.com deal was found by Cheapflights users on 3/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/229:40 pm
BOS
-
CCU
1 stop18h 45m
Multiple Airlines
Thu 4/24:00 am
CCU
-
BOS
1 stop20h 45m
Multiple Airlines
Deal found 3/9$905
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:25 pm
BOS
-
CCU
1 stop18h 35m
Etihad Airways
Fri 4/104:10 am
CCU
-
BOS
1 stop20h 00m
Etihad Airways
Deal found 3/6$906
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:40 pm
BOS
-
CCU
1 stop17h 50m
Etihad Airways
Mon 4/69:30 pm
CCU
-
BOS
1 stop26h 40m
Etihad Airways
Deal found 3/9$907

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$814
(Trip.com)

One-way from

$404
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$1,250
Provider with most accurate pricing for Boston Logan Intl-Kolkata Netaji S. Chandra flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Kolkata Netaji S. Chandra flights.
Search Deals
From Boston Logan Intl to Kolkata Netaji S. Chandra
Search Deals
One-way flight from Boston Logan Intl to Kolkata Netaji S. Chandra
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 11, 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 round-trip

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 4/29

4:25 pm-3:00 am

1 stop25h 05m

Kolkata Netaji S. Chandra

Sun 5/3

4:10 am-2:40 pm

1 stop20h 00m

$1,029

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 4/7

9:50 pm-12:30 pm

2 stops29h 10m

Kolkata Netaji S. Chandra

Wed 4/15

6:45 pm-7:55 pm

2 stops58h 40m

$1,112

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 4/6

9:50 pm-3:30 pm

2 stops32h 10m

Kolkata Netaji S. Chandra

Wed 4/15

6:45 pm-7:55 pm

2 stops58h 40m

$1,112

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 3/30

9:50 pm-3:30 pm

2 stops32h 10m

Kolkata Netaji S. Chandra

Thu 4/2

6:45 pm-7:55 pm

2 stops34h 40m

$1,208

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 4/29

5:06 pm-2:30 am

2 stops23h 54m

Kolkata Netaji S. Chandra

Sun 5/3

4:00 am-3:05 pm

1 stop20h 35m

$1,274
Quickest round-trip

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 3/30

10:00 pm-2:30 am

1 stop19h 00m

Kolkata Netaji S. Chandra

Thu 4/2

4:00 am-3:15 pm

1 stop20h 45m

$1,289

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 3/30

11:05 pm-12:30 am

1 stop39h 55m

Kolkata Netaji S. Chandra

Thu 4/2

9:50 am-2:10 pm

1 stop37h 50m

$1,295

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 3/23

4:30 pm-6:50 pm

2 stops40h 50m

Kolkata Netaji S. Chandra

Mon 3/30

9:50 am-2:10 pm

1 stop37h 50m

$1,350

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 3/24

4:30 pm-7:40 am

2 stops29h 40m

Kolkata Netaji S. Chandra

Tue 3/31

9:50 am-2:10 pm

1 stop37h 50m

$1,350
Cheapest one-way

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 3/23

4:40 pm-2:00 am

2 stops23h 50m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Kolkata flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 6, 2026.

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, June is the cheapest month in which you can book a flight from Boston to Kolkata (average of $820). Flying from Boston to Kolkata in August is currently the most expensive (average of $1,236). 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 March 11, 2026.
Read reviews from past customers who have flown Emirates,Qatar Airways, andEtihad Airways from Boston to Kolkata. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,540 reviews

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Emirates
8.1
Very good
3,540 reviews
Emirates
8.1
Very good
3,540 reviews

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Qatar Airways
7.4
Good
3,742 reviews
Emirates
8.1
Very good
3,540 reviews

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Etihad Airways
7.3
Good
1,426 reviews
Emirates
8.1
Very good
3,540 reviews

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
American Airlines
7.1
Good
11,424 reviews
Emirates
8.1
Very good
3,540 reviews

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
IndiGo
6.8
Okay
542 reviews
Emirates
8.1
Very good
3,540 reviews

Overall

8.1

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Food

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

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?

    For as low as $1,029, Etihad Airways can have you in Kolkata from Boston in 25h 05m. Boston and Kolkata are separated by a distance of 7752 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, IndiGo ($439), American Airlines ($899), and Etihad Airways ($920) offers the cheapest pricing from Boston to Kolkata. IndiGo is priced at 65% 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 IndiGo, which is currently one of the cheapest options available, starting at $411. Etihad Airways flights start at $488 while deals on Qatar Airways start at $515 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 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, June is the cheapest month in which you can book a flight from Boston to Kolkata (average of $820). Flying from Boston to Kolkata in August is currently the most expensive (average of $1,236). 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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Complete your trip

Complete your trip to Kolkata by adding a car rental and/or hotel reservation to your travel itinerary.
Kolkata car rentals
Kolkata Netaji S. Chandra Airport car rentals

Top 5 airlines flying from Boston to Kolkata

Discover the top 5 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
IndiGoCheapest$439Average$1,113FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$899Average$1,110FlexibilityNo cancel feeOn-time71%
Etihad AirwaysCheapest$920Average$1,264FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$961Average$1,232FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,248Average$1,335FlexibilityNo cancel feeOn-time75%

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