SEA - CCU

$539 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 5/5. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Kolkata.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Kolkata.
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Cheap Flights from Seattle to Kolkata

 
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.

Recent round-trip flight deals from Seattle to Kolkata

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Kolkata.
Discover the best prices for you by selecting your travel dates on KAYAK.
Singapore Airlines Logo
10:15 am - 10:15 pmSEA-CCU
23h 30m1 stop
Singapore Airlines Logo
11:30 pm - 8:45 amCCU-SEA
21h 45m1 stop
$824Singapore Airlines
Find Deal
Thu, Aug 21 - Fri, Sep 19
 Logo
8:25 pm - 1:45 pmSEA-CCU
28h 50m2 stops
 Logo
5:30 am - 8:50 pmCCU-SEA
27h 50m2 stops
$1,006
Find Deal
Sun, Jun 8 - Sun, Jun 15
 Logo
8:25 pm - 8:15 pmSEA-CCU
35h 20m2 stops
 Logo
8:15 am - 3:45 pmCCU-SEA
44h 00m2 stops
$1,020
Find Deal
Tue, Jun 10 - Tue, Jun 17
Etihad Airways Logo
11:45 pm - 2:50 amSEA-CCU
38h 35m2 stops
Etihad Airways Logo
3:45 am - 10:12 pmCCU-SEA
54h 57m2 stops
$1,207Etihad Airways
Find Deal
Wed, Sep 24 - Fri, Oct 3
Etihad Airways Logo
11:30 am - 8:20 pmSEA-CCU
44h 20m2 stops
Etihad Airways Logo
10:00 pm - 10:12 pmCCU-SEA
36h 42m2 stops
$1,247Etihad Airways
Find Deal
Wed, Sep 24 - Sat, Oct 4
Turkish Airlines Logo
7:10 pm - 10:45 amSEA-CCU
27h 05m2 stops
Turkish Airlines Logo
9:15 pm - 5:15 pmCCU-SEA
32h 30m2 stops
$1,312Turkish Airlines
Find Deal
Wed, May 14 - Sat, Jul 26
Turkish Airlines Logo
7:10 pm - 3:35 pmSEA-CCU
31h 55m2 stops
Turkish Airlines Logo
7:05 pm - 10:35 amCCU-SEA
52h 00m2 stops
$1,534Turkish Airlines
Find Deal
Mon, Jun 16 - Thu, Jul 10
Lufthansa Logo
2:15 pm - 9:00 amSEA-CCU
30h 15m2 stops
Lufthansa Logo
9:20 pm - 11:55 amCCU-SEA
27h 05m2 stops
$1,625Lufthansa
Find Deal
Sat, Jun 14 - Thu, Jul 10
Lufthansa Logo
2:15 pm - 9:00 amSEA-CCU
30h 15m2 stops
Lufthansa Logo
9:20 pm - 11:55 amCCU-SEA
27h 05m2 stops
$1,635Lufthansa
Find Deal
Wed, Jun 18 - Thu, Jul 10
British Airways Logo
1:30 pm - 7:30 amSEA-CCU
29h 30m2 stops
British Airways Logo
2:00 am - 6:20 pmCCU-SEA
28h 50m2 stops
$1,767British Airways
Find Deal
Thu, Jun 12 - Wed, Jun 18
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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’s the cheapest day of the week to fly from Seattle to Kolkata?

The average price of all round-trip flights from Seattle to Kolkata clicked on KAYAK for each day over the last 12 months.

When flying from Seattle to Kolkata, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays.

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 $882 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,195 and $1,584 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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMay
High seasonDecember
Cheapest flight$539
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 78% 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 $539 for a one-way ticket and $824 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Seattle and Kolkata, with Star Alliance 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 Qatar Airways?

    The two airlines most popular with KAYAK users for flights from Seattle to Kolkata are Singapore Airlines and Qatar Airways. With an average price for the route of $1,180 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $2,721 and an overall rating of 7.4.

  • 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.

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.
8.1
Singapore AirlinesOverall score based on 1292 reviews
7.9Comfort
8.2Boarding
8.0Entertainment
7.7Food
8.6Crew
Airline reviews

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

10.0 ExcellentSailesh, Apr 2025SIN - AMD
Read more Singapore Airlines reviews

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

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

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

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

I purchased Qatar airways after seeing ads about its service. To my surprise Qatar is marketing gimmick and horrible airlines which I don’t recommend to anyone Flight was dirty including flight from Miami to Doha And Doha airport restrooms are dirty On top of this they use this pathetic cheap indigo From Doha to Hyderabad which I will never fly Also they lost one of my baggage in Indigo and still waiting to receive it. I will never travel Qatar and will never recommend

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Aircraft was spacious compared to American Airlines, food was great, entertainment was much better with a wide variety of options, and the crew was very polite.

Very punctual, the onboard staff was friendly and correct, the flight was fortunately very calm, the toilets were clean, in short, an excellent experience Thanks

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

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

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