
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,087 (FlightHub) |
One-way from | $491 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,106 |
Fly from
Fly to
Route
Depart
Return
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Thu 6/11
5:05 pm-1:45 am
2 stops44h 10m
Kolkata Netaji S. Chandra
Thu 6/18
7:15 pm-12:25 pm
2 stops53h 40m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Wed 6/17
8:53 am-2:30 am
2 stops29h 07m
Kolkata Netaji S. Chandra
Wed 6/24
4:00 am-12:25 pm
1 stop20h 55m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Mon 6/1
12:45 pm-8:10 am
2 stops30h 55m
Kolkata Netaji S. Chandra
Tue 6/9
9:50 am-10:49 pm
2 stops49h 29m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Wed 6/17
8:53 am-2:30 am
2 stops29h 07m
Kolkata Netaji S. Chandra
Sat 7/11
4:00 am-12:25 pm
1 stop20h 55m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Sat 8/1
7:10 pm-10:45 am
2 stops27h 05m
Kolkata Netaji S. Chandra
Thu 8/20
9:40 pm-5:15 pm
2 stops32h 05m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Sun 6/7
7:00 am-2:30 am
2 stops55h 00m
Kolkata Netaji S. Chandra
Mon 7/13
4:00 am-12:25 pm
1 stop20h 55m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Sun 8/2
7:10 pm-11:50 am
2 stops28h 10m
Kolkata Netaji S. Chandra
Sun 8/16
12:30 am-5:15 pm
2 stops29h 15m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Sat 7/18
7:03 am-2:30 am
2 stops30h 57m
Kolkata Netaji S. Chandra
Mon 7/27
4:00 am-10:41 pm
2 stops31h 11m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Fri 6/19
4:25 pm-9:45 am
2 stops28h 50m
Kolkata Netaji S. Chandra
Sat 7/4
8:35 pm-12:25 pm
2 stops28h 20m
SeattleKolkata
SEA - CCU
SEACCU
Seattle/Tacoma Intl
Sat 8/1
12:35 pm-10:45 am
2 stops33h 40m
Kolkata Netaji S. Chandra
Mon 8/17
9:40 pm-5:15 pm
2 stops32h 05m
| 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 |
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.
Currently, September is the cheapest month in which you can book a flight from Seattle to Kolkata (average of $791). Flying from Seattle to Kolkata in December is currently the most expensive (average of $1,763). 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.
Entertainment
Overall
Crew
Comfort
Boarding
Food
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Overall
Crew
Comfort
Boarding
Food
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Overall
Crew
Comfort
Boarding
Food
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Overall
Crew
Comfort
Boarding
Food
Reviews
Anonymous,Feb 2026
SAI - SIN
Entertainment
Overall
Crew
Comfort
Boarding
Food
Reviews
Anonymous,Feb 2026
SAI - SIN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$698 | Average$1,065 | 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% |