$435+ Cheap flights from Seattle (SEA) 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CCU
Jun 28 — Jul 51
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Kolkata with Cheapflights
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Cheapest flights from Seattle to KolkataExplore the most affordable flight options available from Seattle to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.
Explore the most affordable flight options available from Seattle to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 29, 2026.
This Indian Eagle deal was found by Cheapflights users on 5/25. 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 9/310:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
Mon 9/2111:30 pm
CCU
- SEA
1 stop21h 45m
Singapore Airlines
Deal found 5/25![Singapore Airlines logo]()
$899
This Singapore Airlines deal was found by Cheapflights users on 5/25. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
Fri 9/1811:30 pm
CCU
- SEA
1 stop21h 45m
Singapore Airlines
Deal found 5/25![Singapore Airlines logo]()
$900
This iWofly deal was found by Cheapflights users on 5/24. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:45 am
SEA
- CCU
1 stop24h 10m
Singapore Airlines
Mon 11/1611:40 pm
CCU
- SEA
1 stop21h 00m
Singapore Airlines
Deal found 5/24![Singapore Airlines logo]()
$982
This oojo deal was found by Cheapflights users on 5/26. 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.
Fri 11/138:45 am
SEA
- CCU
1 stop24h 10m
Singapore Airlines
Sun 12/2011:40 pm
CCU
- SEA
1 stop45h 00m
Singapore Airlines
Deal found 5/26![Singapore Airlines logo]()
$1,030
This oojo deal was found by Cheapflights users on 5/26. 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.
Sat 11/148:45 am
SEA
- CCU
1 stop24h 10m
Singapore Airlines
Sun 12/2011:40 pm
CCU
- SEA
1 stop45h 00m
Singapore Airlines
Deal found 5/26![Singapore Airlines logo]()
$1,057
This Indian Eagle deal was found by Cheapflights users on 5/25. 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 9/511:44 pm
SEA
- CCU
2 stops32h 16m
Etihad Airways
Mon 9/219:30 pm
CCU
- SEA
2 stops35h 42m
Etihad Airways
Deal found 5/25![Etihad Airways logo]()
$1,069
This Indian Eagle deal was found by Cheapflights users on 5/26. 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 10/711:55 pm
SEA
- CCU
2 stops32h 05m
Etihad Airways
Mon 10/193:50 am
CCU
- SEA
2 stops29h 55m
Etihad Airways
Deal found 5/26![Etihad Airways logo]()
$1,070
This FlightHub deal was found by Cheapflights users on 5/25. 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 9/511:44 pm
SEA
- CCU
2 stops32h 16m
Etihad Airways
Sat 9/193:50 am
CCU
- SEA
2 stops53h 22m
Etihad Airways
Deal found 5/25![Etihad Airways logo]()
$1,087
This oojo deal was found by Cheapflights users on 5/26. 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.
Sat 11/78:45 am
SEA
- CCU
1 stop24h 10m
Multiple Airlines
Mon 12/1411:40 pm
CCU
- SEA
2 stops30h 46m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,092
This oojo deal was found by Cheapflights users on 5/26. 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.
Sat 11/78:45 am
SEA
- CCU
1 stop72h 10m
Singapore Airlines
Mon 12/1411:40 pm
CCU
- SEA
1 stop21h 00m
Singapore Airlines
Deal found 5/26![Singapore Airlines logo]()
$1,096
This Etihad Airways deal was found by Cheapflights users on 5/25. 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.
Sat 9/511:44 pm
SEA
- CCU
2 stops32h 16m
Etihad Airways
Mon 9/213:50 am
CCU
- SEA
2 stops53h 22m
Etihad Airways
Deal found 5/25![Etihad Airways logo]()
$1,105
This Etihad Airways deal was found by Cheapflights users on 5/26. 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.
Thu 9/1711:55 pm
SEA
- CCU
2 stops38h 30m
Etihad Airways
Mon 9/219:30 pm
CCU
- SEA
2 stops35h 42m
Etihad Airways
Deal found 5/26![Etihad Airways logo]()
$1,106
Best flights from Seattle to KolkataDiscover carefully curated flight deals from Seattle to Kolkata that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 29, 2026.
Discover carefully curated flight deals from Seattle to Kolkata that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 29, 2026.
This oojo deal was found by Cheapflights users on 5/23. 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.
Fri 6/194:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Fri 6/264:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/23![Qatar Airways logo]()
$1,291
This FlightHub deal was found by Cheapflights users on 5/23. 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.
Fri 6/194:25 pm
SEA
- CCU
1 stop21h 35m
Multiple Airlines
Fri 6/264:00 am
CCU
- SEA
2 stops40h 43m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,337
This Turkish Airlines deal was found by Cheapflights users on 5/24. 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 7/37:15 pm
SEA
- CCU
2 stops27h 00m
Turkish Airlines
Sat 8/89:40 pm
CCU
- SEA
2 stops49h 30m
Turkish Airlines
Deal found 5/24![Turkish Airlines logo]()
$1,617
This oojo deal was found by Cheapflights users on 5/28. 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.
Fri 8/710:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
Fri 8/2111:30 pm
CCU
- SEA
1 stop21h 45m
Singapore Airlines
Deal found 5/28![Singapore Airlines logo]()
$1,638
This Qatar Airways deal was found by Cheapflights users on 5/26. 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 7/2311:15 am
SEA
- CCU
2 stops26h 45m
Qatar Airways
Mon 8/174:00 am
CCU
- SEA
2 stops31h 11m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,448
This Turkish Airlines deal was found by Cheapflights users on 5/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:15 pm
SEA
- CCU
2 stops31h 45m
Multiple Airlines
Fri 8/2112:55 pm
CCU
- SEA
2 stops40h 55m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,477
This Qatar Airways deal was found by Cheapflights users on 5/24. 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 7/29:18 pm
SEA
- CCU
2 stops40h 42m
Qatar Airways
Fri 8/144:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/24![Qatar Airways logo]()
$1,495
This Qatar Airways deal was found by Cheapflights users on 5/24. 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.
Tue 6/304:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Sat 8/154:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/24![Qatar Airways logo]()
$1,560
This Qatar Airways deal was found by Cheapflights users on 5/26. 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.
Fri 7/245:10 pm
SEA
- CCU
2 stops44h 50m
Qatar Airways
Mon 8/174:00 am
CCU
- SEA
2 stops31h 11m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,599
This Qatar Airways deal was found by Cheapflights users on 5/24. 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 6/298:42 pm
SEA
- CCU
2 stops41h 18m
Qatar Airways
Tue 8/114:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/24![Qatar Airways logo]()
$1,802
This Qatar Airways deal was found by Cheapflights users on 5/24. 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 7/23:59 pm
SEA
- CCU
2 stops46h 01m
Qatar Airways
Mon 8/104:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/24![Qatar Airways logo]()
$1,916
Last-minute flights from Seattle to KolkataDiscover last-minute flight deals from Seattle to Kolkata. Data last updated May 29, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Kolkata. Data last updated May 29, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 5/23. 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.
Fri 6/194:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Fri 6/264:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/23![Qatar Airways logo]()
$1,291
This FlightHub deal was found by Cheapflights users on 5/23. 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.
Fri 6/194:25 pm
SEA
- CCU
1 stop21h 35m
Multiple Airlines
Fri 6/264:00 am
CCU
- SEA
2 stops40h 43m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,337
This oojo deal was found by Cheapflights users on 5/25. 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.
Fri 6/194:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Sat 7/44:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/25![Qatar Airways logo]()
$1,341
This oojo deal was found by Cheapflights users on 5/25. 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.
Fri 6/194:25 pm
SEA
- CCU
1 stop21h 35m
Multiple Airlines
Sat 7/46:30 pm
CCU
- SEA
2 stops30h 25m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,422
This Indian Eagle deal was found by Cheapflights users on 5/26. 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.
Mon 6/224:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Thu 7/24:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,446
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Tue 6/239:18 pm
SEA
- CCU
2 stops40h 42m
Qatar Airways
Tue 6/304:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,450
This Qatar Airways deal was found by Cheapflights users on 5/26. 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.
Tue 6/237:18 pm
SEA
- CCU
2 stops42h 42m
Qatar Airways
Wed 7/14:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,471
This FlightHub deal was found by Cheapflights users on 5/26. 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 6/247:26 am
SEA
- CCU
2 stops30h 34m
Qatar Airways
Wed 7/14:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,410
This FlightHub deal was found by Cheapflights users on 5/26. 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 6/244:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Thu 7/24:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,443
This FlightHub deal was found by Cheapflights users on 5/24. 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.
Tue 6/304:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Fri 8/74:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/24![Qatar Airways logo]()
$1,465
This Indian Eagle deal was found by Cheapflights users on 5/24. 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 6/304:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Fri 8/144:00 am
CCU
- SEA
1 stop20h 55m
Qatar Airways
Deal found 5/24![Qatar Airways logo]()
$1,476
One-way flights from Seattle to KolkataSearch for one-way flight options from Seattle to Kolkata. Find affordable one-way fares based on user searches. Data last updated May 29, 2026.
Search for one-way flight options from Seattle to Kolkata. Find affordable one-way fares based on user searches. Data last updated May 29, 2026.
This oojo deal was found by Cheapflights users on 5/26. 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.
Fri 9/1110:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
Deal found 5/26![Singapore Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 9/1310:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
Deal found 5/25![Singapore Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 9/1310:15 am
SEA
- CCU
2 stops34h 05m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$559
This Indian Eagle deal was found by Cheapflights users on 5/26. 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 9/1611:15 pm
SEA
- CCU
2 stops30h 50m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Sat 9/1911:00 am
SEA
- CCU
2 stops48h 20m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$572
This Indian Eagle deal was found by Cheapflights users on 5/27. 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 9/2011:15 pm
SEA
- CCU
2 stops30h 50m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$576
This Indian Eagle deal was found by Cheapflights users on 5/26. 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 8/94:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$599
This FlightHub deal was found by Cheapflights users on 5/26. 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 8/134:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$616
This Indian Eagle deal was found by Cheapflights users on 5/26. 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 8/154:25 pm
SEA
- CCU
1 stop21h 35m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$638
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Tue 9/1511:00 am
SEA
- CCU
2 stops32h 15m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$640
Find flight deals from Seattle to Kolkata
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 May 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $899 (Indian Eagle) |
One-way from | $435 (oojo) |
Popular in | December |
Cheapest in | September |
Average price | $1,106 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 May 29, 2026.
Use the filters below to find and compare flights from Seattle to Kolkata that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 6/19
4:25 pm-2:30 am
1 stop21h 35m
Kolkata Netaji S. Chandra
Fri 6/26
4:00 am-12:25 pm
1 stop20h 55m
$1,291
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 6/19
4:25 pm-2:30 am
1 stop21h 35m
Kolkata Netaji S. Chandra
Fri 6/26
4:00 am-8:13 am
2 stops40h 43m
$1,337
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Thu 7/23
11:15 am-2:30 am
2 stops26h 45m
Kolkata Netaji S. Chandra
Mon 8/17
4:00 am-10:41 pm
2 stops31h 11m
$1,448
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 8/7
7:15 pm-3:30 pm
2 stops31h 45m
Kolkata Netaji S. Chandra
Fri 8/21
12:55 pm-5:20 pm
2 stops40h 55m
$1,477
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Thu 7/2
9:18 pm-2:30 am
2 stops40h 42m
Kolkata Netaji S. Chandra
Fri 8/14
4:00 am-12:25 pm
1 stop20h 55m
$1,495
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Tue 6/30
4:25 pm-2:30 am
1 stop21h 35m
Kolkata Netaji S. Chandra
Sat 8/15
4:00 am-12:25 pm
1 stop20h 55m
$1,560
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 7/24
5:10 pm-2:30 am
2 stops44h 50m
Kolkata Netaji S. Chandra
Mon 8/17
4:00 am-10:41 pm
2 stops31h 11m
$1,599
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 7/3
7:15 pm-10:45 am
2 stops27h 00m
Kolkata Netaji S. Chandra
Sat 8/8
9:40 pm-10:40 am
2 stops49h 30m
$1,617
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 8/7
10:15 am-10:35 pm
1 stop23h 50m
Kolkata Netaji S. Chandra
Fri 8/21
11:30 pm-8:45 am
1 stop21h 45m
$1,638
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Mon 6/29
8:42 pm-2:30 am
2 stops41h 18m
Kolkata Netaji S. Chandra
Tue 8/11
4:00 am-12:25 pm
1 stop20h 55m
$1,802
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Seattle 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 Seattle to Kolkata in May.
| 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 Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Kolkata flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Kolkata flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Kolkata flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-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 Seattle-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 Seattle to Kolkata
Have a flexible travel schedule? Discover the best time to fly to Kolkata from Seattle with our price prediction graph.
SEA-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 Seattle to Kolkata
How far ahead should I book a flight from Seattle to Kolkata?
The best time to book flights from Seattle to Kolkata is 67 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 Seattle to Kolkata?
Currently, September is the cheapest month in which you can book a flight from Seattle to Kolkata (average of $788). Flying from Seattle to Kolkata in December is currently the most expensive (average of $1,734). 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 Seattle 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 May 29, 2026.
Read through reviews of airlines operating flights from Seattle to Kolkata, such as Singapore Airlines,Emirates, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.1
Crew
8.6
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWee Keng,May 2026
SIN - MNL
Entertainment
8.1
Crew
8.6
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWee Keng,May 2026
SIN - MNL
Entertainment
8.1
Crew
8.6
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWee Keng,May 2026
SIN - MNL
Entertainment
8.1
Crew
8.6
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWee Keng,May 2026
SIN - MNL
Entertainment
8.1
Crew
8.6
Overall
8.2
Boarding
8.3
Food
7.8
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWee Keng,May 2026
SIN - MNL
Related info for your journey
Find useful and relevant information for your journey from Seattle 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 May 29, 2026.
Seattle and Kolkata flights
Browse other Seattle and Kolkata flight options. Last updated on May 29, 2026.
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Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on May 29, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Seattle to Kolkata
Discover the top 4 airlines that operate flights from Seattle 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 May 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$717 | Average$1,068 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,008 | Average$1,169 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,155 | Average$1,447 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,768 | Average$3,363 | FlexibilityNo cancel fee | On-time75% |