SEA - CCU

$369 Find Cheap Flights from Seattle to Kolkata

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Kolkata departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kolkata

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Kolkata, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Kolkata, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$754
Overall average: $1,337
Singapore Airlines
Tue 9/1Wed 9/30
SEA - CCU • 1 stop
Cheapest one-way
$369
Typical prices: $422-$714
Singapore Airlines
Sat 4/25
SEA - CCU • 1 stop
Top airlines
Cheapest • from $754 (round-trip)
Best reviews • 8.2 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Seattle and Kolkata. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $1,773 (round-trip)
Shortest trip • 20h 32m (one-way)
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 45% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kolkata!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Kolkata (SEA-CCU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Kolkata that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Kolkata

Tue, Sep 1 - Wed, Sep 30
Singapore Airlines Logo
10:15 am - 10:15 pm
SEA
-
CCU
23h 30m
1 stop
Singapore Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$754Singapore Airlines
Fri, Sep 4 - Mon, Sep 28
Singapore Airlines Logo
10:15 am - 10:15 pm
SEA
-
CCU
23h 30m
1 stop
Singapore Airlines Logo
11:30 pm - 8:45 am
CCU
-
SEA
21h 45m
1 stop
$774Singapore Airlines
Wed, Sep 2 - Wed, Sep 30
Multiple Airlines Logo
7:00 am - 10:35 pm
SEA
-
CCU
27h 05m
2 stops
Multiple Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$830Multiple Airlines
Wed, Sep 2 - Wed, Sep 30
Multiple Airlines Logo
10:41 pm - 8:15 pm
SEA
-
CCU
33h 04m
2 stops
Multiple Airlines Logo
10:00 pm - 11:30 am
CCU
-
SEA
26h 00m
2 stops
$875Multiple Airlines
Tue, Sep 1 - Thu, Oct 1
Singapore Airlines Logo
10:15 am - 10:15 pm
SEA
-
CCU
23h 30m
1 stop
Singapore Airlines Logo
11:30 pm - 8:45 am
CCU
-
SEA
21h 45m
1 stop
$969Singapore Airlines
Thu, Sep 3 - Wed, Sep 30
Singapore Airlines Logo
10:15 am - 10:35 pm
SEA
-
CCU
23h 50m
1 stop
Singapore Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$986Singapore Airlines
Fri, Sep 4 - Sat, Oct 3
Singapore Airlines Logo
10:15 am - 10:15 pm
SEA
-
CCU
23h 30m
1 stop
Singapore Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$989Singapore Airlines
Tue, Apr 14 - Wed, Sep 16
Multiple Airlines Logo
11:33 pm - 3:00 am
SEA
-
CCU
38h 57m
2 stops
Multiple Airlines Logo
9:30 pm - 10:24 pm
CCU
-
SEA
37h 24m
2 stops
$996Multiple Airlines
Tue, Jul 28 - Wed, Aug 5
Multiple Airlines Logo
9:39 pm - 10:35 pm
SEA
-
CCU
36h 26m
2 stops
Multiple Airlines Logo
11:40 pm - 8:45 am
CCU
-
SEA
21h 35m
1 stop
$1,002Multiple Airlines
Wed, Apr 1 - Wed, May 13
Qatar Airways Logo
4:25 pm - 2:30 am
SEA
-
CCU
21h 35m
1 stop
Qatar Airways Logo
4:00 am - 12:45 pm
CCU
-
SEA
21h 15m
1 stop
$1,003Qatar Airways
Booking Insights

KAYAK's insights & trends for Seattle to Kolkata flights

Get data-powered insights and trends into flights from Seattle to Kolkata to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Kolkata?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Kolkata, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Kolkata is September, where tickets cost $788 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,573 and $1,395 respectively.

How far in advance should I book a flight from Seattle to Kolkata?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Kolkata, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Kolkata, you should book around 6 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$369
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 41% increase in price.
Flight from Seattle to Kolkata

When to book flights from Seattle to Kolkata

Are your dates flexible? Find out the best times to travel from Seattle to Kolkata based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Kolkata

  • What’s the easiest way to get from the city to Seattle–Tacoma International Airport?

    You can evade traffic and even save money on parking by purchasing a ticket or using an ORCA card to catch the Link light rail from downtown Seattle to the airport.

  • Where can I park at Seattle–Tacoma International Airport?

    Depending on your stay in Kolkata, you can use on-airport long-term parking lots like the General Parking on the 1st to 3rd floors and 5th to 8th floors. You can reserve covered parking lots at Sea-Tac’s official website.

  • Are there on-site car rental companies at Kolkata Airport?

    The only major car hire company on-site at Kolkata airport is Avis. However, a local car hire agency called Wenz has a counter in the Arrival Level operated by Wenz International Private Limited and offers a variety of choice vehicles.

  • Can I get a bus from Kolkata Airport to the city?

    Yes. The West Bengal Surface Transport Corporation (WBSTC) bus is a great alternative when you can’t hire a vehicle and need a cost-effective mode of transportation to downtown Kolkata from the airport. Services start at 8 am, and the last bus departs the airport at 9:30 pm.

  • What is the cheapest flight from Seattle to Kolkata?

    In the last 3 days, the lowest price for a flight from Seattle to Kolkata was $369 for a one-way ticket and $754 for a round-trip.

  • Do I need a passport to fly between Seattle and Kolkata?

    A passport is required to fly from Seattle to Kolkata.

  • Which aircraft models fly most regularly from Seattle to Kolkata?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Kolkata?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Kolkata, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Kolkata from Seattle?

    Singapore is the most popular layover city among KAYAK users traveling from Seattle to Kolkata.

  • Which is the best airline for flights from Seattle to Kolkata, Singapore Airlines or Emirates?

    The two airlines most popular with KAYAK users for flights from Seattle to Kolkata are Singapore Airlines and Emirates. With an average price for the route of $1,100 and an overall rating of 8.2, Singapore Airlines is the most popular choice. Emirates is also a great choice for the route, with an average price of $3,363 and an overall rating of 8.1.

  • How does KAYAK find such low prices on flights from Seattle to Kolkata?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Kolkata.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Kolkata?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kolkata from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Kolkata?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kolkata with an airline and back to Seattle with another airline. Booking your flights between Seattle and CCU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Kolkata?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kolkata from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Kolkata

  • Also known as Kolkata Airport or Kolkata Netaji S. Chandra, Netaji Subhas Chandra Bose International (CCU) is the airport that serves the Capital of West Bengal state, India, Kolkata. If you’re traveling to India with a companion animal, consider using Air India, Jet Airways, and SpiceJet because they allow pets on board. At Seattle–Tacoma International Airport or Sea-Tac, pets must remain leashed except when visiting Pet Relief Areas on the Subway level of Concourse D, Mezzanine Level of Concourse S, the Mezzanine Level of Central Terminal, etc.
  • As the 10th-busiest airport in the U.S. that serves more than 36 million passengers per year, Seattle–Tacoma International Airport (SEA) can get very busy between 5 am to 7 am, 9 am to 11 am, and 4 pm to 6 pm. TSA recommends that travelers arrive 3h before their departure flight, so there’s ample time to navigate around the terminal, check-in, go through security, and find your gate.
  • If you arrive at Sea-Tac with time to spare before your flight to Kolkata, you can purchase a day pass to access The Club SEA in Concourse A and the Alaska Lounges in Concourses C, D and the North Satellite Terminal. Lounge facilities at Kolkata Airport are located in the Security Hold Areas of the Domestic and International Terminal.
  • Passengers that need to keep their kids entertained can head to Sea-Tac’s children’s play area near gate A, next door to Qdoba or use one of the seven lactation pods situated throughout the four Concourses. Located at Departure Level 3 and arrival Level 1 at Kolkata Airport are child care rooms available for traveling moms that need privacy to breastfeed, pump or change diapers.
  • While post-security wheelchair services are provided by your airline, Seattle–Tacoma International Airport, in conjunction with Prospect Airport Services, provides wheelchairs, including complimentary Meet and Assist services to passengers with disability. Communicating your wheelchair needs while booking your Kolkata tickets through KAYAK is advisable.

Reviews of the top 4 airlines serving from Seattle to Kolkata

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Kolkata. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Kolkata? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1475 reviews
8.6Crew
7.8Food
8.0Comfort
8.3Boarding
8.0Entertainment
Airline reviews

They ran out of the second choice of food was stuck with fish

4.0 OkayOscar, Mar 2026
LAX - NRT
Read more Singapore Airlines reviews

They ran out of the second choice of food was stuck with fish

I wish there was a little more leg room between the seats. The recline was good and seats overall were comfortable. I also didn’t like the 2-4-2 configuration.

toilets could be cleaned more frequently, everything else was pretty good.

The flight crew was phenominal! We couldn't have asked for any better. They were experienced professionals.

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

Both the staff at check-in counter and on board were pleasant and helpful. My chicken and mashed potato was good, sauce was tasty, but the zucchini, carrot n other accompanying vegetables were over-cooked a little. (I understand the meal has to be prepared earlier). Yet I would fly on Singapore Airlines again and recommend it to family and friends.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Everything was great except the boarding experience. After the check in, they "packed us" in a small area, very hot there. It would be nice to be aware of this, I'd wait on the outside area

Very good from the beginning to the end. Amazing experience

Chaos at the gate while boarding - no clear signs or announcements

I liked the newer aircraft CRJ-550 since it had WIFI and the seats are more spacious.

Fly Dubai takes low cost and thrift to new depths in terms of service levels, terminal 2 is grossly inadequate for capacity and resembles a crowded buss or railway station,, the fly dubai( Emirates) flight is never on time(was 2.5 hrs delayed), and this is not an isolated experience, the flght air conditioning was turned low while we waited on the tarmac for take clearance to save fuel, should say more!!!! The depths! I only fly this airline from a compulsion, emirates code shares for connections to Muscat

They changed the flight time without telling us and were unwilling to help with rebooking because we booked through orbits/kayak

I liked everything: the service, the food, the cleanness. I flew last year with Qatar Airways, so I can compare. Emirates did much better! Especially their meals and service.

Emirates did great! I liked the service, the food, cleanness, and the flight was on time. Much better airline than Qatar Airways I flew with last year.

I lost my lock from my luggage, I don’t know someone took something from my bag.

Ove the A380 planes. Comfortable seats. Served great Indian food and Masala Chai!

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

Looks like a local flight. Food was horrible. No entertainment system.

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

the cabin was kept too hot. couldn't sleep as a result

It was an amazing experience. Flight crew's service, hospitality, and the food were phenomenal. I don't think I'd want to try any other airline company after this. I would definitely recommend to friends and family. Thank you Turkish Airlines !

Business Class pods are horrible. If you're petite, you might be able to sleep on the uncomfortable seat and bed. Crew and food are fantastic.

I have travelled many times on Turkish, but they always board at least 30-40 minutes past the stated time. If informed properly, passengers can choose to spend more time in the .lounge instead of standing around by the gate waiting to board. The new lounge at DFW was a big disappointment. The aircraft itself was a shock. In the past I have flown this sector with regular business class seating configuration of 1-2-1, The 2-3-2 seating is very disappointing after paying such high prices for tickets. The DFW to Istanbul segment was slightly better, but the Istanbul to Delhi segment was no better than premium economy. I will try to travel more on airlines which give business class passengers more value for their money.

Good overall. Seat spacing a bit tight between IST and ISB.

Excellent staff despite some trying passenger situations. Very impressed with their good attitudes and kindness.

Crew were unfriendly, touch screen for movies didn't work very well, seats were tight and uncomfortable

After arriving in Istanbul, the transit information on the electronic board showed a tight departure time, and the gate changed in the middle, making it difficult to make it on time.

Typically good service onboard but baggage delay in airport was significant

My, Syed Zawar Hussein Shirazi frequently flyer membership number was not included on my boarding pass from O’Hare to Istanbul despite my reminder to the attendant at check in. Further she forgot to give me my boarding pass form Istanbul to Lahore and she needs to improve her customer service, please 🙏

Everything you need to know for your flight from Seattle to Kolkata

Information on your arrival and departure airports