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Cheap flights from Boston to Kolkata from ₹ 36,091

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

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 Friday or Monday and return on a Wednesday

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 12 December 2025.

Mon 29/1210:50BOS - CCU
2 stops28h 35mMultiple Airlines
Mon 19/118:00CCU - BOS
2 stops32h 18mMultiple Airlines
Deal found 12/12₹ 120,755
Sun 28/1217:20BOS - CCU
3 stops32h 35mMultiple Airlines
Mon 12/114:20CCU - BOS
3 stops34h 20mMultiple Airlines
Deal found 11/12₹ 145,901
Mon 29/1215:40BOS - CCU
1 stop17h 50mEtihad Airways
Mon 19/120:55CCU - BOS
1 stop27h 45mEtihad Airways
Deal found 12/12₹ 154,313
Wed 10/1220:45BOS - CCU
3 stops34h 25mMultiple Airlines
Mon 2/214:35CCU - BOS
3 stops34h 05mMultiple Airlines
Deal found 10/12₹ 157,117
Sat 13/1211:35BOS - CCU
3 stops33h 40mMultiple Airlines
Mon 2/214:20CCU - BOS
3 stops34h 20mMultiple Airlines
Deal found 10/12₹ 162,635
Sun 14/1217:10BOS - CCU
3 stops28h 05mMultiple Airlines
Fri 30/103:35CCU - BOS
1 stop21h 05mMultiple Airlines
Deal found 10/12₹ 162,997

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 12 December 2025.

Round-trip from

₹ 92,353

One-way from

₹ 36,091

Popular in

December

Cheapest in

September

Average price

₹ 163,358
Qatar Airways
  • Qatar Airways
  • 21/2-27/2
  • 3 total stops
  • 54h 40m total
  • Boston to Kolkata
Search Deals
IndiGo
  • IndiGo
  • 26/1
  • 2 total stops
  • 40h 20m total
  • Boston to Kolkata
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (₹ 1,000,890 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 363,506 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 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 3/1

15:40-20:00

1 stop17h 50m

Kolkata Netaji S. Chandra

Tue 27/1

20:55-14:10

1 stop27h 45m

₹ 94,885

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 19/3

20:25-07:25

2 stops49h 30m

Kolkata Netaji S. Chandra

Sun 22/3

03:15-16:55

2 stops47h 10m

₹ 96,514

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 19/3

21:40-01:55

1 stop18h 45m

Kolkata Netaji S. Chandra

Sun 22/3

03:25-14:55

1 stop21h 00m

₹ 109,448

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 11/1

15:40-20:00

1 stop17h 50m

Kolkata Netaji S. Chandra

Mon 26/1

20:55-14:10

1 stop27h 45m

₹ 113,247

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 24/4

16:07-19:55

2 stops42h 18m

Kolkata Netaji S. Chandra

Sun 30/8

20:35-16:59

2 stops29h 54m

₹ 116,594

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 7/1

07:08-02:40

2 stops33h 02m

Kolkata Netaji S. Chandra

Fri 23/1

03:35-14:10

1 stop21h 05m

₹ 119,398

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 29/1

13:40-22:25

3 stops46h 15m

Kolkata Netaji S. Chandra

Wed 4/2

23:40-23:54

2 stops34h 44m

₹ 119,670

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 26/1

20:00-22:50

2 stops40h 20m

₹ 36,091

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 27/1

20:00-17:40

2 stops35h 10m

₹ 36,905

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 30/1

20:00-17:40

2 stops35h 10m

₹ 36,905

Flights are sorted by cheapest return flights first.

Deals found on 12/12

Showing 1-10 of 19 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 5 December 2025.

The best time to book flights from Boston to Kolkata is 47 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 ₹ 78,513). Flying from Boston to Kolkata in August is currently the most expensive (average of ₹ 112,705). 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.

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?

    Etihad Airways, British Airways, and Qatar Airways can get you from Boston to Kolkata in just under 17h 50m. Your travel time can differ by up to 31h 40m. The distance from Boston to Kolkata is about 12476 km. This flight may include one or multiple stops.

  • 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 ₹ 78,513). Flying from Boston to Kolkata in August is currently the most expensive (average of ₹ 112,705). 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.
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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.

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