$438+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CCU
aug. 8 — aug. 151
Round-trip
1 adult, Economy
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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 juli 9, 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 juli 9, 2026.
This Trip.com deal was found by Cheapflights users on 7/5. 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.
to. 10/810:15 am
SEA
- CCU
2 stops25h 05m
Multiple Airlines
fr. 11/1312:50 am
CCU
- SEA
2 stops43h 50m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,059
This oojo deal was found by Cheapflights users on 7/7. 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.
on. 12/308:45 am
SEA
- CCU
1 stop24h 10m
Singapore Airlines
fr. 1/2911:40 pm
CCU
- SEA
1 stop21h 00m
Singapore Airlines
Deal found 7/7![Singapore Airlines logo]()
$1,077
This oojo deal was found by Cheapflights users on 7/4. 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.
on. 11/188:45 am
SEA
- CCU
1 stop24h 10m
Singapore Airlines
fr. 12/2511:40 pm
CCU
- SEA
1 stop21h 00m
Singapore Airlines
Deal found 7/4![Singapore Airlines logo]()
$1,078
This Etihad Airways deal was found by Cheapflights users on 7/4. 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.
fr. 9/2511:55 pm
SEA
- CCU
2 stops32h 05m
Etihad Airways
fr. 10/99:30 pm
CCU
- SEA
2 stops36h 15m
Etihad Airways
Deal found 7/4![Etihad Airways logo]()
$1,080
This Etihad Airways deal was found by Cheapflights users on 7/5. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 8/2611:45 pm
SEA
- CCU
2 stops38h 40m
Multiple Airlines
on. 9/99:30 pm
CCU
- SEA
2 stops37h 38m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,117
This Trip.com deal was found by Cheapflights users on 7/9. 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.
fr. 8/2112:10 am
SEA
- CCU
2 stops35h 10m
Multiple Airlines
on. 9/21:00 am
CCU
- SEA
2 stops26h 45m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,138
This oojo deal was found by Cheapflights users on 7/4. 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.
fr. 9/2510:15 am
SEA
- CCU
1 stop47h 50m
Singapore Airlines
fr. 10/911:30 pm
CCU
- SEA
1 stop21h 45m
Singapore Airlines
Deal found 7/4![Singapore Airlines logo]()
$1,151
This Etihad Airways deal was found by Cheapflights users on 7/7. 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.
lø. 8/2911:56 pm
SEA
- CCU
2 stops38h 29m
Multiple Airlines
fr. 9/113:50 am
CCU
- SEA
2 stops31h 18m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$1,161
This Indian Eagle deal was found by Cheapflights users on 7/6. 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.
ma. 7/2012:35 pm
SEA
- CCU
2 stops35h 25m
Turkish Airlines
lø. 7/254:15 pm
CCU
- SEA
2 stops54h 55m
Turkish Airlines
Deal found 7/6![Turkish Airlines logo]()
$1,195
This oojo deal was found by Cheapflights users on 7/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 9/1810:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
to. 12/1011:40 pm
CCU
- SEA
1 stop21h 00m
Singapore Airlines
Deal found 7/5![Singapore Airlines logo]()
$1,223
This Turkish Airlines deal was found by Cheapflights users on 7/7. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 11/207:05 pm
SEA
- CCU
2 stops31h 10m
Turkish Airlines
ti. 12/810:30 pm
CCU
- SEA
2 stops32h 10m
Turkish Airlines
Deal found 7/7![Turkish Airlines logo]()
$1,248
This FlightHub deal was found by Cheapflights users on 7/5. 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.
lø. 11/287:05 pm
SEA
- CCU
2 stops27h 50m
Turkish Airlines
sø. 1/176:30 pm
CCU
- SEA
2 stops36h 10m
Turkish Airlines
Deal found 7/5![Turkish Airlines logo]()
$1,249
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 juli 9, 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 juli 9, 2026.
This Etihad Airways deal was found by Cheapflights users on 7/4. 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.
fr. 9/2511:55 pm
SEA
- CCU
2 stops32h 05m
Etihad Airways
fr. 10/99:30 pm
CCU
- SEA
2 stops36h 15m
Etihad Airways
Deal found 7/4![Etihad Airways logo]()
$1,080
This Indian Eagle deal was found by Cheapflights users on 7/5. 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.
fr. 9/187:15 pm
SEA
- CCU
2 stops25h 55m
Turkish Airlines
to. 12/109:30 pm
CCU
- SEA
2 stops33h 10m
Turkish Airlines
Deal found 7/5![Turkish Airlines logo]()
$1,195
This KLM deal was found by Cheapflights users on 7/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 8/231:30 pm
SEA
- CCU
2 stops31h 10m
KLM
fr. 8/2810:30 pm
CCU
- SEA
2 stops30h 27m
KLM
Deal found 7/8![KLM logo]()
$1,343
This FlightHub deal was found by Cheapflights users on 7/9. 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.
lø. 8/228:40 am
SEA
- CCU
2 stops29h 20m
Qatar Airways
to. 9/34:00 am
CCU
- SEA
1 stop21h 15m
Qatar Airways
Deal found 7/9![Qatar Airways logo]()
$1,400
This Singapore Airlines deal was found by Cheapflights users on 7/6. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 8/199:40 pm
SEA
- CCU
2 stops36h 25m
Multiple Airlines
on. 8/2611:30 pm
CCU
- SEA
3 stops33h 30m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,406
This Turkish Airlines deal was found by Cheapflights users on 7/7. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti. 7/217:15 pm
SEA
- CCU
2 stops28h 45m
Turkish Airlines
fr. 7/2410:30 pm
CCU
- SEA
2 stops31h 20m
Turkish Airlines
Deal found 7/7![Turkish Airlines logo]()
$1,350
This KLM deal was found by Cheapflights users on 7/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 8/161:30 pm
SEA
- CCU
2 stops30h 15m
KLM
sø. 8/239:40 pm
CCU
- SEA
2 stops26h 27m
KLM
Deal found 7/7![KLM logo]()
$1,378
This Singapore Airlines deal was found by Cheapflights users on 7/4. 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.
fr. 9/252:30 pm
SEA
- CCU
2 stops43h 35m
Multiple Airlines
fr. 10/911:30 pm
CCU
- SEA
1 stop21h 45m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,411
This Mytrip deal was found by Cheapflights users on 7/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sø. 8/2310:15 am
SEA
- CCU
2 stops35h 55m
Multiple Airlines
fr. 8/289:15 pm
CCU
- SEA
3 stops35h 00m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$1,480
This Turkish Airlines deal was found by Cheapflights users on 7/4. 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.
sø. 7/197:15 pm
SEA
- CCU
2 stops29h 10m
Turkish Airlines
lø. 7/259:40 pm
CCU
- SEA
2 stops49h 30m
Turkish Airlines
Deal found 7/4![Turkish Airlines logo]()
$1,565
This KLM deal was found by Cheapflights users on 7/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 7/135:40 pm
SEA
- CCU
2 stops51h 00m
KLM
ma. 7/277:00 pm
CCU
- SEA
2 stops29h 03m
KLM
Deal found 7/4![KLM logo]()
$1,584
Last-minute flights from Seattle to KolkataDiscover last-minute flight deals from Seattle to Kolkata. Data last updated juli 9, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Kolkata. Data last updated juli 9, 2026 and is based on user searches.
This Turkish Airlines deal was found by Cheapflights users on 7/4. 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.
on. 7/157:15 pm
SEA
- CCU
2 stops29h 10m
Turkish Airlines
lø. 7/259:40 pm
CCU
- SEA
2 stops49h 30m
Turkish Airlines
Deal found 7/4![Turkish Airlines logo]()
$1,707
This Trip.com deal was found by Cheapflights users on 7/9. 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.
to. 7/165:15 pm
SEA
- CCU
2 stops36h 00m
Multiple Airlines
ma. 7/206:30 pm
CCU
- SEA
2 stops55h 25m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,613
This KAYAK deal was found by Cheapflights users on 7/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to. 7/164:25 pm
SEA
- CCU
2 stops28h 50m
Multiple Airlines
lø. 7/254:00 am
CCU
- SEA
1 stop21h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,678
This Air France deal was found by Cheapflights users on 7/4. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 7/171:45 pm
SEA
- CCU
2 stops30h 55m
KLM
sø. 7/269:40 pm
CCU
- SEA
2 stops31h 10m
KLM
Deal found 7/4![KLM logo]()
$1,572
This KAYAK deal was found by Cheapflights users on 7/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 7/174:25 pm
SEA
- CCU
2 stops28h 50m
Multiple Airlines
lø. 7/254:00 am
CCU
- SEA
1 stop21h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,624
This Turkish Airlines deal was found by Cheapflights users on 7/4. 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.
lø. 7/187:15 pm
SEA
- CCU
2 stops27h 00m
Turkish Airlines
lø. 7/259:40 pm
CCU
- SEA
2 stops49h 30m
Turkish Airlines
Deal found 7/4![Turkish Airlines logo]()
$1,667
This Turkish Airlines deal was found by Cheapflights users on 7/4. 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.
sø. 7/197:15 pm
SEA
- CCU
2 stops29h 10m
Turkish Airlines
lø. 7/259:40 pm
CCU
- SEA
2 stops49h 30m
Turkish Airlines
Deal found 7/4![Turkish Airlines logo]()
$1,565
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 juli 9, 2026.
Search for one-way flight options from Seattle to Kolkata. Find affordable one-way fares based on user searches. Data last updated juli 9, 2026.
This Singapore Airlines deal was found by Cheapflights users on 7/4. 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.
ti. 8/1810:15 am
SEA
- CCU
1 stop23h 50m
Singapore Airlines
Deal found 7/4![Singapore Airlines logo]()
$438
This Trip.com deal was found by Cheapflights users on 7/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 10/1912:50 pm
SEA
- CCU
2 stops46h 30m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$601
This Indian Eagle deal was found by Cheapflights users on 7/6. 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.
fr. 8/147:15 pm
SEA
- CCU
2 stops31h 45m
Turkish Airlines
Deal found 7/6![Turkish Airlines logo]()
$613
This Turkish Airlines deal was found by Cheapflights users on 7/4. 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.
ti. 8/187:15 pm
SEA
- CCU
2 stops27h 00m
Turkish Airlines
Deal found 7/4![Turkish Airlines logo]()
$614
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
ma. 7/2012:35 pm
SEA
- CCU
2 stops35h 25m
Turkish Airlines
Deal found 7/6![Turkish Airlines logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 10/912:13 pm
SEA
- CCU
3 stops43h 12m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$643
This Indian Eagle deal was found by Cheapflights users on 7/5. 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.
to. 10/811:55 pm
SEA
- CCU
2 stops38h 30m
Etihad Airways
Deal found 7/5![Etihad Airways logo]()
$648
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
to. 7/164:30 pm
SEA
- CCU
2 stops48h 55m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$659
This Trip.com deal was found by Cheapflights users on 7/5. 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.
ti. 10/61:15 am
SEA
- CCU
2 stops34h 05m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$661
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 juli 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,059 (Trip.com) |
One-way from | $438 (Singapore Airlines) |
Popular in | December |
Cheapest in | March |
Average price | $1,302 |
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 juli 9, 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
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
fr. 9/25
11:55 pm-8:30 pm
2 stops32h 05m
Kolkata Netaji S. Chandra
fr. 10/9
9:30 pm-9:15 pm
2 stops36h 15m
$1,080
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
fr. 9/18
7:15 pm-9:40 am
2 stops25h 55m
Kolkata Netaji S. Chandra
to. 12/10
9:30 pm-5:10 pm
2 stops33h 10m
$1,195
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
sø. 8/23
1:30 pm-9:10 am
2 stops31h 10m
Kolkata Netaji S. Chandra
fr. 8/28
10:30 pm-4:27 pm
2 stops30h 27m
$1,343
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
ti. 7/21
7:15 pm-12:30 pm
2 stops28h 45m
Kolkata Netaji S. Chandra
fr. 7/24
10:30 pm-5:20 pm
2 stops31h 20m
$1,350
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
sø. 8/16
1:30 pm-8:15 am
2 stops30h 15m
Kolkata Netaji S. Chandra
sø. 8/23
9:40 pm-11:37 am
2 stops26h 27m
$1,378
Quickest round-trip
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
lø. 8/22
8:40 am-2:30 am
2 stops29h 20m
Kolkata Netaji S. Chandra
to. 9/3
4:00 am-12:45 pm
1 stop21h 15m
$1,400
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
on. 8/19
9:40 pm-10:35 pm
2 stops36h 25m
Kolkata Netaji S. Chandra
on. 8/26
11:30 pm-8:30 pm
3 stops33h 30m
$1,406
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
fr. 9/25
2:30 pm-10:35 pm
2 stops43h 35m
Kolkata Netaji S. Chandra
fr. 10/9
11:30 pm-8:45 am
1 stop21h 45m
$1,411
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
sø. 8/23
10:15 am-10:40 am
2 stops35h 55m
Kolkata Netaji S. Chandra
fr. 8/28
9:15 pm-7:45 pm
3 stops35h 00m
$1,480
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
sø. 7/19
7:15 pm-12:55 pm
2 stops29h 10m
Kolkata Netaji S. Chandra
lø. 7/25
9:40 pm-10:40 am
2 stops49h 30m
$1,565
Showing 1-10 of 19 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 July.
| 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, March is the cheapest month in which you can book a flight from Seattle to Kolkata (average of $922). Flying from Seattle to Kolkata in December is currently the most expensive (average of $1,794). 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 juli 9, 2026.
Read through reviews of airlines operating flights from Seattle to Kolkata, such as Singapore Airlines and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.8
Comfort
8.0
Crew
8.6
Boarding
8.3
Entertainment
8.0
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SIN - AMD
Food
7.8
Comfort
8.0
Crew
8.6
Boarding
8.3
Entertainment
8.0
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SIN - AMD
Food
7.8
Comfort
8.0
Crew
8.6
Boarding
8.3
Entertainment
8.0
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SIN - AMD
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 juli 9, 2026.
Seattle and Kolkata flights
Browse other Seattle and Kolkata flight options. Last updated on juli 9, 2026.
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Kolkata
Discover the top 2 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 juli 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$717 | Average$1,081 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,072 | Average$1,169 | FlexibilityNo cancel fee | On-time68% |