- Regular
- StudentStudent Fare
Only students above 12 years of age are eligible for special fares and/or additional baggage allowances. Carrying valid student ID cards and student visas (where applicable) is mandatory, else the passenger may be denied boarding or asked to pay for extra baggage.
Popular Filters
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One Way Price
Duration
Stops From Kolkata
Departure From Kolkata
₹ 69,003
₹ 46,604
₹ 46,226
₹ 46,226
Arrival at Seattle
₹ 77,531
₹ 63,125
₹ 46,226
Alliances & Airlines
Oneworld
(50)
SkyTeam
(32)
Star Alliance
(61)
+ 13 more
Layover Airports
+ 19 more
Layover Duration
Further Flights From Kolkata (CCU)
Further Flights From Seattle (SEA)
Top International Routes
Top International Cities
Up to 25% OFF* on Flights.
30th Nov'25
Popular Hotels in Kolkata
Hotels in Kolkata
Premium Hotels Nearby Kolkata
Popular Hotels in Seattle
Hotels in Seattle
Premium Hotels Nearby Seattle
Trains from Kolkata
Trains to Kolkata
Kolkata to Seattle Flights, Fares @ ₹46226 + Flat Rs 1500 OFF
₹ 47,326
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Air India AI 2410
23:00
Thu, 11 Dec 25
Kolkata, India
02 h 55 m
01:55
Fri, 12 Dec 25
Terminal T2
Mumbai, India
BAGGAGE : CHECK INCABIN
Information not available
Air India AI 179
08:00
Fri, 12 Dec 25
Mumbai, India
02 h 25 m
10:25
Fri, 12 Dec 25
New Delhi, India
BAGGAGE : CHECK INCABIN
Information not available
Air India AI 179
12:30
Fri, 12 Dec 25
New Delhi, India
15 h 30 m
14:30
Fri, 12 Dec 25
Terminal I
San Francisco, United States
BAGGAGE : CHECK INCABIN
Information not available
Alaska Airlines AS 591
16:42
Fri, 12 Dec 25
Terminal T1
San Francisco, United States
02 h 17 m
18:59
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Eco value
Fare offered by airlines.
₹ 25,000
₹ 47,326₹ 46,226
Eco classic
Fare offered by airlines.
₹ 25,000
₹ 49,951₹ 48,851
Eco flex
Fare offered by airlines.
₹ 6,000
₹ 61,764₹ 60,664
₹ 47,704
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Everett , 11 Dec
Air India AI 2410
23:00
Thu, 11 Dec 25
Kolkata, India
02 h 55 m
01:55
Fri, 12 Dec 25
Terminal T2
Mumbai, India
BAGGAGE : CHECK INCABIN
Information not available
Air India AI 179
08:00
Fri, 12 Dec 25
Mumbai, India
02 h 25 m
10:25
Fri, 12 Dec 25
New Delhi, India
BAGGAGE : CHECK INCABIN
Information not available
Air India AI 179
12:30
Fri, 12 Dec 25
New Delhi, India
15 h 30 m
14:30
Fri, 12 Dec 25
Terminal I
San Francisco, United States
BAGGAGE : CHECK INCABIN
Information not available
Alaska Airlines AS 2083
20:55
Fri, 12 Dec 25
Terminal T1
San Francisco, United States
02 h 12 m
23:07
Fri, 12 Dec 25
Everett, United States
BAGGAGE : CHECK INCABIN
Information not available
Eco value
Fare offered by airlines.
₹ 25,000
₹ 47,704₹ 46,604
Eco classic
Fare offered by airlines.
₹ 25,000
₹ 50,329₹ 49,229
Eco flex
Fare offered by airlines.
₹ 6,000
₹ 62,142₹ 61,042
₹ 64,225
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Air France AF 6051 | Operated By IndiGo
21:30
Thu, 11 Dec 25
Kolkata, India
03 h
00:30
Fri, 12 Dec 25
Terminal T2
Mumbai, India
BAGGAGE : CHECK INCABIN
Information not available
Air France AF 217
02:20
Fri, 12 Dec 25
Terminal T2
Mumbai, India
09 h 55 m
07:45
Fri, 12 Dec 25
Terminal T2E
Paris, France
BAGGAGE : CHECK INCABIN
Information not available
Air France AF 3622 | Operated By Delta Air Lines
11:30
Fri, 12 Dec 25
Terminal T2E
Paris, France
10 h 55 m
13:25
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Light
Fare offered by airline.
₹ 26,581
₹ 64,225₹ 63,125
Standard
Fare offered by airline.
₹ 13,291
₹ 70,904₹ 69,804
GOSPECIAL
Fare by Goibibo
₹ 13,291
₹ 70,513
Flex
Fare offered by airline.
₹ 82,337₹ 81,237
Economy full flex
Fare offered by airline.
₹ 3,78,202₹ 3,77,102
₹ 64,292
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
KLM Royal Dutch KL 4708 | Operated By IndiGo
21:30
Thu, 11 Dec 25
Kolkata, India
03 h
00:30
Fri, 12 Dec 25
Terminal T2
Mumbai, India
BAGGAGE : CHECK INCABIN
Information not available
KLM Royal Dutch KL 2165 | Operated By Air France
02:20
Fri, 12 Dec 25
Terminal T2
Mumbai, India
09 h 55 m
07:45
Fri, 12 Dec 25
Terminal T2E
Paris, France
BAGGAGE : CHECK INCABIN
Information not available
KLM Royal Dutch KL 6122 | Operated By Delta Air Lines
11:30
Fri, 12 Dec 25
Terminal T2E
Paris, France
10 h 55 m
13:25
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy lightbag
Fare offered by airline.
₹ 26,570
₹ 64,292₹ 63,192
Economy standard3
Fare offered by airline.
₹ 13,285
₹ 70,970₹ 69,870
Economy flex1
Fare offered by airline.
₹ 82,406₹ 81,306
Economy full flex
Fare offered by airline.
₹ 3,78,073₹ 3,76,973
₹ 69,084
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Virgin Atlantic VS 8668 | Operated By IndiGo
23:55
Thu, 11 Dec 25
Kolkata, India
02 h 50 m
02:45
Fri, 12 Dec 25
Terminal T1
Bengaluru, India
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 317
05:00
Fri, 12 Dec 25
Terminal T2
Bengaluru, India
11 h 10 m
10:40
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 4036 | Operated By Delta Air Lines
12:20
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
10 h 38 m
14:58
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy classic
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 69,084₹ 67,984
Economy classic flex
Fare offered by airline.
₹ 2,61,403₹ 2,60,303
₹ 69,084
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Virgin Atlantic VS 8638 | Operated By IndiGo
22:30
Thu, 11 Dec 25
Kolkata, India
02 h 30 m
01:00
Fri, 12 Dec 25
Terminal T3
New Delhi, India
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 303
05:00
Fri, 12 Dec 25
Terminal T3
New Delhi, India
10 h
09:30
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 4036 | Operated By Delta Air Lines
12:20
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
10 h 38 m
14:58
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy classic
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 69,084₹ 67,984
Economy classic flex
Fare offered by airline.
₹ 2,61,403₹ 2,60,303
Premium
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 2,74,985₹ 2,73,885
₹ 69,084
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Virgin Atlantic VS 8619 | Operated By IndiGo
17:00
Thu, 11 Dec 25
Kolkata, India
02 h 50 m
19:50
Thu, 11 Dec 25
Terminal T1
Bengaluru, India
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 317
05:00
Fri, 12 Dec 25
Terminal T2
Bengaluru, India
11 h 10 m
10:40
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 4036 | Operated By Delta Air Lines
12:20
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
10 h 38 m
14:58
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy classic
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 69,084₹ 67,984
Economy classic flex
Fare offered by airline.
₹ 2,61,403₹ 2,60,303
₹ 69,084
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Virgin Atlantic VS 9212 | Operated By IndiGo
16:10
Thu, 11 Dec 25
Kolkata, India
02 h 35 m
18:45
Thu, 11 Dec 25
Terminal T2
New Delhi, India
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 303
05:00
Fri, 12 Dec 25
Terminal T3
New Delhi, India
10 h
09:30
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 4036 | Operated By Delta Air Lines
12:20
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
10 h 38 m
14:58
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy classic
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 69,084₹ 67,984
Economy classic flex
Fare offered by airline.
₹ 2,61,403₹ 2,60,303
Premium
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 2,74,985₹ 2,73,885
₹ 69,084
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Virgin Atlantic VS 8621 | Operated By IndiGo
15:10
Thu, 11 Dec 25
Kolkata, India
02 h 50 m
18:00
Thu, 11 Dec 25
Terminal T1
Bengaluru, India
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 317
05:00
Fri, 12 Dec 25
Terminal T2
Bengaluru, India
11 h 10 m
10:40
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 4036 | Operated By Delta Air Lines
12:20
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
10 h 38 m
14:58
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy classic
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 69,084₹ 67,984
Economy classic flex
Fare offered by airline.
₹ 2,61,403₹ 2,60,303
₹ 69,084
₹ 1,100 Instant Discount
Use GODEALS to get instant discount of Rs 1410
Kolkata to Seattle , 11 Dec
Virgin Atlantic VS 8640 | Operated By IndiGo
14:10
Thu, 11 Dec 25
Kolkata, India
02 h 35 m
16:45
Thu, 11 Dec 25
Terminal T1
New Delhi, India
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 303
05:00
Fri, 12 Dec 25
Terminal T3
New Delhi, India
10 h
09:30
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
BAGGAGE : CHECK INCABIN
Information not available
Virgin Atlantic VS 4036 | Operated By Delta Air Lines
12:20
Fri, 12 Dec 25
Terminal T3
London - Heathrow Apt, United Kingdom
10 h 38 m
14:58
Fri, 12 Dec 25
Seattle, United States
BAGGAGE : CHECK INCABIN
Information not available
Economy classic
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 69,084₹ 67,984
Economy classic flex
Fare offered by airline.
₹ 2,61,403₹ 2,60,303
Premium
Fare offered by airline.
₹ 17,530
₹ 7,000
₹ 2,74,985₹ 2,73,885
| Kolkata Seattle Cheap Flights | Fare | Date |
|---|---|---|
| Lowest Airfare Today | Rs 0 | |
| Cheapest Fare Within 30 Days | Rs 47326 |
11 Dec
|
| Cheapest Fare Within 90 Days | Rs 47326 |
11 Dec
|
| Cheapest Fare Within 365 Days | Rs 47326 |
11 Dec
|
Get cheap flights from Kolkata to Seattle with Goibibo India
Q: Why choose Goibibo for your flight booking from Kolkata to Seattle?
A: Goibibo lets you search and compare flight tickets to various destinations with just a click. There is a huge inventory of airlines for you to choose from, and exciting deals and discounts so that you can book your flight tickets at reasonable prices. You can always reach out to Goibibo customer care for any help.
Q: How to get a cheap flight ticket from Kolkata to Seattle?
A: At Goibibio, it’s very simple to find cheap flights. • After entering the source and destination on the home page, you will get a list of flights. Click on the ‘Cheapest’ filter below to see the cheapest flights first. • You can also grab a cheap flight booking by setting up an alert for Kolkata to Seattle flights. Goibibo will let you know whenever there is a price drop for your flight. What’s the best time to book a flight from Kolkata to Seattle? • For a cheap domestic flight, try booking 3-4 weeks in advance. • For an international flight, you must book at least 7-8 weeks ahead for a better price. • You can also check the calendar view while booking to compare the prices for various dates. • Set up a price alert to get notified about the best prices for your flight from Kolkata to Seattle.
Q: What should you keep in mind while booking a flight from Kolkata to Seattle?
A: At Goibibo, you can compare flights from all major airlines at one go. Always keep an eye out for the best offers on your Kolkata to Seattle flight. Plus, there are no hidden charges when you book a Kolkata to Seattle flight on Goibibo.
Q: Is there any discount on a flight booking from Kolkata to Seattle?
A: Goibibo always has discount offers running on flights. You can find many coupons on the website and app for your Kolkata to Seattle booking. While booking, you can choose the best coupon from the list for an instant discount on your tickets.
Kolkata to Seattle Flights
Searching for Kolkata to Seattle cheap flights? Then, Goibibo is your one-stop destination to book Kolkata to Seattle flight in a hassle-free manner. It is one such platform that brings forth all the options for you at one place and lets you book the most suitable flight with the best deals and offers.
There is no dearth of options when it comes to Kolkata to Seattle Flight booking. Several budget and premium airlines fly on this route. You can easily check the Kolkata to Seattle flight schedule on Goibibo. There are approximately 104 flights flying daily between Kolkata and Seattle from early morning to late at night. Out of these Kolkata to Seattle flight, 0 are non stop flights 104 are connecting flights. Air Canada, Air France, Air India, Alaska Airlines, American Airlines, Biman Bangladesh, British Airways, Delta Air Lines, Emirates, Eva Airways, Japan Airlines, KLM Royal Dutch, Lufthansa, Qatar Airways, Singapore Airlines, Swiss, Thai Airways, Turkish Airlines, Virgin Atlantic are some major airlines that fly between Kolkata and Seattle.
The lowest airfare of Kolkata to Seattle flight is ₹46226 and the average airfare is 77531 depending on the airline, timings and availability. So, it is advisable to book domestic flights 2-3 weeks well in advance to avail minimum airfare. You can also book Kolkata to Seattle cheap flights if you are flexible with your dates and timings.
You will board your Kolkata to Seattle flight from the Netaji Subhash Chandra Bose International Airport and deboard it at Seattle Airport.
You cannot only book Kolkata to Seattle cheap flight tickets through Goibibo but can also do web check-in and track your flight status.
How to book a Kolkata to Seattle flight ticket on Goibibo?
Booking flight tickets on Goibibo is very simple. For a Kolkata to Seattle flight, check below:
How can I check the flight schedule for a Kolkata to Seattle flight?
To check the Kolkata to Seattle flight schedule,
How much baggage can I carry on my Kolkata to Seattle flight?
Baggage allowance depends on the class of travel and airline. In the Kolkata to Seattle Air India flight, 25 kg of checked baggage is allowed, while 8 kg of hand luggage is permitted. On the other hand, in all domestic IndiGo flights, a passenger can carry 7 kg of hand luggage and 15 kg of checked baggage.
Where will I board my flight at Kolkata and deboard at Seattle?
When you have booked a Kolkata to Seattle flight, you will board the flight at and de-board at .
How can I do web check-in for my upcoming Kolkata at Seattle flight?
To avail the web check-in service and avoid queues at airports, you have to visit the official airline websites. Commonly, you have to fill the cities of departure and arrival, PNR number and last name to select your preferred seats and meals.
About Seattle
Airport Address
Tel:
About Kolkata
Set on the banks of the Hooghly River, the City of Joy, Kolkata is one amongst India’s significant metropolitan cities. Immersed in authentic Bengali culture and rich colonial history of the country, the city holds a distinctive splendor. The city balances its glorious past and modern day urbanization flawlessly. Against the backdrop of the calm river, the city showcases beautiful sunrise and sunset views that are worth experiencing. Kolkata has been home to revered artists and revolutionaries whose brilliant works are explicitly highlighted in the various art galleries.
Best Time to Visit
The months between October-March are ideal to visit the city, as the climate remains pleasant allowing travelers to explore the city comfortably. Search and book best Kolkata hotels at cheap price from Goibibo.
Places to Visit
Howrah Bridge is one of the largest and busiest bridges of the world and is a star attraction of the city. Victoria Memorial, Fort William Kolkata and Birla Planetarium are some of the famous historical sites that portray excellent architecture of ancient times and also give deep insights about the vast history. The Indian Museum, Marble Palace Mansion, Birla Temple and Prinsep Ghat are some of the other important tourist spots of the city. From local markets to malls, the city has plenty of shopping destinations that will offer you a good shopping experience. New Market, Gariahat Market and Bara Bazaar are some of the famous markets while South City Mall and Quest Mall are popular malls.
Hotels and Restaurants
The authentic Bengali cuisine of the city is a must-try. Some of the local delicacies that you must savour are Fish Curry, Alu Dum and Luchi, Puchka and Kathi Rolls. For all the dessert lovers, the city offers some amazing sweets like Rasgullas, Mishti Doi and Sondesh.
Kolkata offers all kind of accommodation options for stay. Right from Budget Hotels in Kolkata to Luxury Hotels in Kolkata/ Resorts in Kolkata, from 5 star Kolkata hotels to service apartments, one can find multiple options as per their need and pocket. Goibibo being the leading travel website has largest collection of hotels on its platform. One can easily find various collection of hotels as well on Goibibo, like couple friendly hotels in Kolkata to hotels preferred by Business travellers in Kolkata, similarly hotels preferred by students and also the ones preferred by women. Popular locations in Kolkata for stay are near Kolkata Airport, Salt Lake, Rajarhat, Park Street and New Town. It is very easy and convenient to compare and book hotels online on Goibibo.
Transportation
The city has a well-planned and systematic transportation network that makes intercity and intracity travel convenient. Located in Dum Dum, 17 km away from the main city, Netaji Subhas Chandra Bose International Airport (CCU) caters to domestic flights as well as international flights. The airport serves as a major hub for flights to international locations such as Bhutan, Bangladesh and China. Airlines such as Asia, Air India, Indigo and GoAir fly maximum number of regular domestic routes. Cheap flight tickets from here to other popular cities can be booked online on Goibibo. Also, flight status & other details related to flight booking & air tickets can be easily accessed on it. So for cheapest air tickets, it is recommended to book flights online. The city has four railway stations in and around Howrah, Sealdah, Chitpur and Shalimar. The state run Kolkata buses connect the city with the neighboring cities of Siliguri, Digha and Bakkhali.
Within the city, public transport includes metro services, trams, local trains, private cabs and auto rickshaws.
Airport Address
Netaji Subhash Chandra Bose,International Airport, Dum Dum, Kolkata - 700 052. ENQUIRIES PHONE NUMBER: +91 33 2511 8787,FLIGHT INFORMATION NO : +91 33 2511 8787,AIRPORT MANAGER (INT) : +91 33 2511 9172,AIRPORT MANAGER (DOM) : +91 33 2511 8318
Frequently Asked Questions - Kolkata to Seattle Flights
Q: What is today’s cheapest fare from Kolkata to Seattle?
A: Today lowest airfare on Kolkata to Seattle flight route is 0.
Q: Which airline has maximum number for flights between Kolkata to Seattle?
A: Out of 104 daily flights between Kolkata to Seattle Alaska Airlines has maximum 26 flights. After that Air India has 22, Virgin Atlantic has 22, Qatar Airways has 12, Japan Airlines has 9, Lufthansa has 8, Thai Airways has 8, Eva Airways has 7, Singapore Airlines has 6, KLM Royal Dutch has 5, Turkish Airlines has 4, Air Canada has 3, Air France has 3, Swiss has 3, British Airways has 2, Delta Air Lines has 2, Emirates has 2, American Airlines has 1, Biman Bangladesh has 1 flights between Kolkata to Seattle.
Q: Which is the cheapest flight from Kolkata to Seattle in next 7 and next 30 days?
A: Cheapest flight in next 7 days on Kolkata to Seattle route is at ₹52644. And in next 30 days lowest price on Kolkata to Seattle route is ₹47326.
Q: Which are the most preferred airlines from Kolkata to Seattle ?
A: Air Canada, Air France, Air India, Alaska Airlines, American Airlines, Biman Bangladesh, British Airways, Delta Air Lines, Emirates, Eva Airways, Japan Airlines, KLM Royal Dutch, Lufthansa, Qatar Airways, Singapore Airlines, Swiss, Thai Airways, Turkish Airlines, Virgin Atlantic are the most preferred airlines on Kolkata to Seattle flight route.
Q: How many flights fly from Kolkata to Seattle on the daily basis?
A: Around 104 flights are flying daily from Kolkata to Seattle. Out of which 0 are direct and 104 are connecting flights on this route. Some major airlines between this route are Air Canada, Air France, Air India, Alaska Airlines, American Airlines, Biman Bangladesh, British Airways, Delta Air Lines, Emirates, Eva Airways, Japan Airlines, KLM Royal Dutch, Lufthansa, Qatar Airways, Singapore Airlines, Swiss, Thai Airways, Turkish Airlines, Virgin Atlantic.
Q: What are the name and codes for Kolkata and Seattle airports?
A: The name of Kolkata airport is Netaji Subhash Chandra Bose International Airport and its code is CCU and name of Seattle Airport is Seattle Airport, its code is SEA.
Q: Which is the last flight on Kolkata to Seattle route?
A: The last flight from Kolkata to Seattle route is Virgin Atlantic at 23:55.
Q: When does the first flight leave from Kolkata to Seattle?
A: The first flight from Kolkata to Seattle is Air India, Alaska Airlines at 00:30.