$479+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Cheapest flights from Boston to KolkataExplore 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 June 10, 2026.
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 June 10, 2026.
This Indian Eagle deal was found by Cheapflights users on 6/7. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:25 pm
BOS
- CCU
1 stop25h 00m
Etihad Airways
Mon 9/149:30 pm
CCU
- BOS
1 stop26h 40m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$864
This oojo deal was found by Cheapflights users on 6/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Fri 9/259:30 pm
CCU
- BOS
1 stop26h 40m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$885
This oojo deal was found by Cheapflights users on 6/8. 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 9/14:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Mon 9/213:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/8![Etihad Airways logo]()
$887
This Indian Eagle deal was found by Cheapflights users on 6/8. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Thu 9/173:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/8![Etihad Airways logo]()
$904
This Indian Eagle deal was found by Cheapflights users on 6/9. 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.
Sat 7/254:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Mon 9/73:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/9![Etihad Airways logo]()
$923
This oojo deal was found by Cheapflights users on 6/8. 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.
Sun 7/264:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Sat 8/83:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/8![Etihad Airways logo]()
$925
This Indian Eagle deal was found by Cheapflights users on 6/5. 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.
Wed 9/910:00 pm
BOS
- CCU
1 stop19h 00m
Qatar Airways
Tue 9/224:00 am
CCU
- BOS
1 stop20h 45m
Qatar Airways
Deal found 6/5![Qatar Airways logo]()
$927
This Etihad Airways deal was found by Cheapflights users on 6/7. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Mon 9/149:30 pm
CCU
- BOS
1 stop26h 40m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$929
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:00 pm
BOS
- CCU
1 stop19h 00m
Qatar Airways
Mon 9/144:00 am
CCU
- BOS
1 stop20h 45m
Qatar Airways
Deal found 6/9![Qatar Airways logo]()
$934
This Indian Eagle deal was found by Cheapflights users on 6/7. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/64:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Thu 9/103:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$936
This Justfly.com deal was found by Cheapflights users on 6/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:00 pm
BOS
- CCU
1 stop19h 00m
Qatar Airways
Mon 9/144:00 am
CCU
- BOS
1 stop20h 45m
Qatar Airways
Deal found 6/7![Qatar Airways logo]()
$938
Best flights from Boston to KolkataDiscover carefully curated flight deals from Boston to Kolkata that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
Discover carefully curated flight deals from Boston to Kolkata that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
This Turkish Airlines deal was found by Cheapflights users on 6/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:50 pm
BOS
- CCU
2 stops33h 35m
Multiple Airlines
Sat 10/249:00 pm
CCU
- BOS
2 stops31h 35m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,095
This Qatar Airways deal was found by Cheapflights users on 6/5. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:00 pm
BOS
- CCU
1 stop19h 00m
Qatar Airways
Fri 9/184:00 am
CCU
- BOS
1 stop20h 45m
Qatar Airways
Deal found 6/5![Qatar Airways logo]()
$1,124
This Etihad Airways deal was found by Cheapflights users on 6/7. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Fri 9/113:50 am
CCU
- BOS
2 stops25h 42m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$1,229
This Turkish Airlines deal was found by Cheapflights users on 6/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:50 pm
BOS
- CCU
2 stops29h 10m
Turkish Airlines
Fri 9/189:00 pm
CCU
- BOS
2 stops32h 25m
Turkish Airlines
Deal found 6/5![Turkish Airlines logo]()
$1,367
This Emirates deal was found by Cheapflights users on 6/5. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:13 pm
BOS
- CCU
2 stops42h 32m
Emirates
Thu 9/179:50 am
CCU
- BOS
1 stop37h 50m
Emirates
Deal found 6/5![Emirates logo]()
$1,390
This Qatar Airways deal was found by Cheapflights users on 6/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:28 pm
BOS
- CCU
2 stops23h 32m
Qatar Airways
Mon 9/284:00 am
CCU
- BOS
1 stop20h 45m
Qatar Airways
Deal found 6/9![Qatar Airways logo]()
$1,250
This Turkish Airlines deal was found by Cheapflights users on 6/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:50 pm
BOS
- CCU
2 stops29h 30m
Turkish Airlines
Wed 9/1610:30 pm
CCU
- BOS
2 stops30h 55m
Turkish Airlines
Deal found 6/5![Turkish Airlines logo]()
$1,367
This Etihad Airways deal was found by Cheapflights users on 6/7. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:43 am
BOS
- CCU
2 stops26h 17m
Etihad Airways
Wed 9/169:30 pm
CCU
- BOS
2 stops32h 02m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$1,463
This Turkish Airlines deal was found by Cheapflights users on 6/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:50 pm
BOS
- CCU
2 stops27h 25m
Turkish Airlines
Fri 9/189:00 pm
CCU
- BOS
2 stops32h 25m
Turkish Airlines
Deal found 6/5![Turkish Airlines logo]()
$1,367
This Turkish Airlines deal was found by Cheapflights users on 6/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:50 pm
BOS
- CCU
2 stops29h 10m
Multiple Airlines
Mon 7/277:15 pm
CCU
- BOS
2 stops34h 10m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,545
Last-minute flights from Boston to KolkataDiscover last-minute flight deals from Boston to Kolkata. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Kolkata. Data last updated June 10, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 6/5. 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.
Sun 6/2110:00 pm
BOS
- CCU
2 stops34h 15m
Multiple Airlines
Mon 7/64:00 am
CCU
- BOS
1 stop20h 45m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,105
This Indian Eagle deal was found by Cheapflights users on 6/5. 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 6/2110:00 pm
BOS
- CCU
1 stop19h 00m
Qatar Airways
Mon 7/64:00 am
CCU
- BOS
1 stop20h 45m
Qatar Airways
Deal found 6/5![Qatar Airways logo]()
$1,137
This Indian Eagle deal was found by Cheapflights users on 6/5. 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.
Tue 7/214:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Fri 9/49:30 pm
CCU
- BOS
1 stop26h 40m
Etihad Airways
Deal found 6/5![Etihad Airways logo]()
$956
This oojo deal was found by Cheapflights users on 6/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:41 am
BOS
- CCU
2 stops32h 44m
Etihad Airways
Fri 9/43:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,053
This oojo deal was found by Cheapflights users on 6/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:41 am
BOS
- CCU
2 stops26h 19m
Etihad Airways
Sun 9/69:30 pm
CCU
- BOS
1 stop26h 40m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$1,136
This Indian Eagle deal was found by Cheapflights users on 6/9. 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.
Sat 7/254:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Mon 9/73:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/9![Etihad Airways logo]()
$923
This oojo deal was found by Cheapflights users on 6/8. 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.
Sun 7/264:25 pm
BOS
- CCU
1 stop18h 35m
Etihad Airways
Sat 8/83:50 am
CCU
- BOS
1 stop20h 20m
Etihad Airways
Deal found 6/8![Etihad Airways logo]()
$925
One-way flights from Boston to KolkataSearch for one-way flight options from Boston to Kolkata. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
Search for one-way flight options from Boston to Kolkata. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Trip.com deal was found by Cheapflights users on 6/5. 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 7/214:25 pm
BOS
- CCU
2 stops23h 50m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$479
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:01 am
BOS
- CCU
2 stops30h 49m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$556
This Justfly.com deal was found by Cheapflights users on 6/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:55 am
BOS
- CCU
2 stops24h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$558
This FlightHub deal was found by Cheapflights users on 6/5. 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.
Thu 9/176:55 am
BOS
- CCU
2 stops26h 10m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$565
This Trip.com deal was found by Cheapflights users on 6/9. 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.
Sun 7/194:25 pm
BOS
- CCU
2 stops23h 50m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$577
This Mytrip deal was found by Cheapflights users on 6/9. 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.
Sat 7/254:25 pm
BOS
- CCU
2 stops23h 05m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$591
This Mytrip deal was found by Cheapflights users on 6/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:25 pm
BOS
- CCU
2 stops23h 05m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$592
This FlightHub deal was found by Cheapflights users on 6/5. 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.
Sat 9/196:55 am
BOS
- CCU
2 stops26h 10m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$607
This Indian Eagle deal was found by Cheapflights users on 6/6. 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.
Wed 12/28:00 pm
BOS
- CCU
2 stops32h 45m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$614
This Indian Eagle deal was found by Cheapflights users on 6/6. 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.
Fri 12/48:00 pm
BOS
- CCU
2 stops34h 20m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 6/5. 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.
Mon 9/214:25 pm
BOS
- CCU
2 stops30h 10m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$621
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $864 (Indian Eagle) |
One-way from | $479 (Trip.com) |
Popular in | December |
Cheapest in | January |
Average price | $1,289 |
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 June 10, 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
Cheapest round-trip
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Tue 10/13
9:50 pm-4:55 pm
2 stops33h 35m
Kolkata Netaji S. Chandra
Sat 10/24
9:00 pm-7:05 pm
2 stops31h 35m
$1,095
Quickest round-trip
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Mon 9/14
10:00 pm-2:30 am
1 stop19h 00m
Kolkata Netaji S. Chandra
Fri 9/18
4:00 am-3:15 pm
1 stop20h 45m
$1,124
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Tue 9/1
4:25 pm-8:30 pm
1 stop18h 35m
Kolkata Netaji S. Chandra
Fri 9/11
3:50 am-8:02 pm
2 stops25h 42m
$1,229
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Thu 9/24
5:28 pm-2:30 am
2 stops23h 32m
Kolkata Netaji S. Chandra
Mon 9/28
4:00 am-3:15 pm
1 stop20h 45m
$1,250
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Tue 9/8
9:50 pm-12:30 pm
2 stops29h 10m
Kolkata Netaji S. Chandra
Fri 9/18
9:00 pm-7:55 pm
2 stops32h 25m
$1,367
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Sat 9/12
9:50 pm-12:50 pm
2 stops29h 30m
Kolkata Netaji S. Chandra
Wed 9/16
10:30 pm-7:55 pm
2 stops30h 55m
$1,367
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Mon 9/14
9:50 pm-10:45 am
2 stops27h 25m
Kolkata Netaji S. Chandra
Fri 9/18
9:00 pm-7:55 pm
2 stops32h 25m
$1,367
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Mon 9/14
3:13 pm-7:15 pm
2 stops42h 32m
Kolkata Netaji S. Chandra
Thu 9/17
9:50 am-2:10 pm
1 stop37h 50m
$1,390
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Tue 9/1
8:43 am-8:30 pm
2 stops26h 17m
Kolkata Netaji S. Chandra
Wed 9/16
9:30 pm-8:02 pm
2 stops32h 02m
$1,463
BostonKolkata
BOS - CCU
BOSCCU
Boston Logan Intl
Fri 7/3
9:50 pm-12:30 pm
2 stops29h 10m
Kolkata Netaji S. Chandra
Mon 7/27
7:15 pm-7:55 pm
2 stops34h 10m
$1,545
Showing 1-10 of 22 resultsSorted by cheapest first
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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- 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.
BOS-CCU
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?
Booking 6 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, January is the cheapest month in which you can book a flight from Boston to Kolkata (average of $1,046). Flying from Boston to Kolkata in December is currently the most expensive (average of $1,702). 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.
How much does it cost to fly round-trip from Boston to Kolkata?
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 June 10, 2026.
Read reviews from past customers who have flown Emirates,SWISS, andQatar 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.
Comfort
8.0
Crew
8.4
Boarding
8.1
Entertainment
8.2
Food
7.9
Overall
8.1
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Crew
8.4
Boarding
8.1
Entertainment
8.2
Food
7.9
Overall
8.1
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Crew
8.4
Boarding
8.1
Entertainment
8.2
Food
7.9
Overall
8.1
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Crew
8.4
Boarding
8.1
Entertainment
8.2
Food
7.9
Overall
8.1
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
Comfort
8.0
Crew
8.4
Boarding
8.1
Entertainment
8.2
Food
7.9
Overall
8.1
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SFO - DXB
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.
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Other flights to Kolkata
Explore flights to Kolkata departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 10, 2026.
Boston and Kolkata flights
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Top 4 airlines flying from Boston to Kolkata
Discover the top 4 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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$919 | Average$1,291 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$935 | Average$1,167 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,248 | Average$1,335 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,359 | Average$1,790 | FlexibilityNo cancel fee | On-time79% |