$617 Find Cheap Flights from Kolkata to Washington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kolkata to Washington departing on 9/25. 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

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Book Cheap Kolkata to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kolkata to Washington 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 Kolkata to Washington

Mon, Sep 14 - Sat, Sep 26
Multiple Airlines Logo
9:30 pm - 12:11 am
CCU
-
SEA
39h 11m
2 stops
Multiple Airlines Logo
11:42 pm - 2:55 am
SEA
-
CCU
38h 43m
2 stops
$1,021Multiple Airlines
Mon, Sep 14 - Sat, Sep 26
Multiple Airlines Logo
9:30 pm - 12:11 am
CCU
-
SEA
39h 11m
2 stops
Multiple Airlines Logo
9:40 pm - 2:55 am
SEA
-
CCU
40h 45m
2 stops
$1,021Multiple Airlines
Mon, Sep 28 - Mon, Mar 22
Multiple Airlines Logo
9:30 pm - 8:44 pm
CCU
-
SEA
35h 44m
2 stops
Multiple Airlines Logo
11:59 pm - 7:55 pm
SEA
-
CCU
31h 26m
2 stops
$1,058Multiple Airlines
Wed, Sep 9 - Fri, Feb 26
Multiple Airlines Logo
9:30 pm - 10:37 pm
CCU
-
SEA
37h 37m
2 stops
Multiple Airlines Logo
5:39 pm - 7:55 pm
SEA
-
CCU
36h 46m
2 stops
$1,058Multiple Airlines
Mon, Sep 14 - Sat, Sep 26
Qatar Airways Logo
4:00 am - 12:45 pm
CCU
-
SEA
21h 15m
1 stop
Qatar Airways Logo
8:46 am - 2:30 am
SEA
-
CCU
29h 14m
2 stops
$1,296Qatar Airways
Mon, Sep 14 - Sat, Sep 26
Qatar Airways Logo
4:00 am - 12:45 pm
CCU
-
SEA
21h 15m
1 stop
Qatar Airways Logo
8:46 am - 2:30 am
SEA
-
CCU
29h 14m
2 stops
$1,337Qatar Airways
Fri, Oct 2 - Sun, Nov 8
Singapore Airlines Logo
11:30 pm - 8:45 am
CCU
-
SEA
21h 45m
1 stop
Singapore Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
$1,397Singapore Airlines
Mon, Sep 14 - Sat, Sep 26
Qatar Airways Logo
4:00 am - 12:45 pm
CCU
-
SEA
21h 15m
1 stop
Qatar Airways Logo
4:25 pm - 2:30 am
SEA
-
CCU
21h 35m
1 stop
$1,411Qatar Airways
Tue, Aug 25 - Sat, Feb 13
Singapore Airlines Logo
5:40 pm - 8:45 am
CCU
-
SEA
51h 35m
2 stops
Singapore Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
$1,928Singapore Airlines
Tue, Aug 25 - Fri, Feb 12
Singapore Airlines Logo
5:40 pm - 8:45 am
CCU
-
SEA
51h 35m
2 stops
Singapore Airlines Logo
8:45 am - 10:25 pm
SEA
-
CCU
24h 10m
1 stop
$1,928Singapore Airlines
Booking Insights

KAYAK's insights & trends for Kolkata to Washington flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kolkata to Washington, 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 Kolkata to Washington is January, when tickets cost $1,037 (return) on average. On the other hand, the most expensive months are July and October, when the average cost of round-trip tickets is $1,745 and $1,479 respectively.

Good to know

Low season

January

Cheapest flight

$617
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Kolkata to Seattle

FAQs - booking Washington flights

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

    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 Kolkata to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Kolkata to Washington 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 Kolkata to Washington?

    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 from Kolkata to Washington with an airline and back with another airline.

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

    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 from Kolkata to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Kolkata to Washington

 
See real verified KAYAK customer reviews for airlines flying from Kolkata to Washington. 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 Kolkata to Washington? 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 1584 reviews
8.6Crew
8.1Entertainment
8.0Comfort
8.3Boarding
7.8Food
Airline reviews

Great flight attendants as always, they were super helpful and friendly. Made my kids super comfortable during long flight. The food were fine, some great taste some not so much specially the scramble eggs thats too watery. And maybe since its general food, better to not serve coffee pudding that kids cant really eat or maybe just serve different pudding for kids.

10.0 ExcellentMaria, Jul 2026
SIN - SEA
Read more Singapore Airlines reviews

Great flight attendants as always, they were super helpful and friendly. Made my kids super comfortable during long flight. The food were fine, some great taste some not so much specially the scramble eggs thats too watery. And maybe since its general food, better to not serve coffee pudding that kids cant really eat or maybe just serve different pudding for kids.

The quality and the quantity of food was terrible. I was starving to death at the end of the flight. Used serve 3 meals long time ago, now reduced to 2 meals during the 17 hours flight. Never offered wine or tea to us. We have to ask . Extremely hard to get the attention of the flight attendants. They intentionally ignore us to minimize the service. Bathrooms were dirty

Never book through Kayak. They can offload booking to third parties that are completely horrible.

Crew is excellent Wifi needs to be improved in order to connect to the internet.

The flight arrived on time. 2×2 seating meant no one needed to sit in the middle. This was a connectibf flight from Singapore and required going to 3 counters in different levels to check a golf bag

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

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.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Crews were very caring and polite. Washroom was surprisingly clean. Overall experience was good , only food choices was very limited. Thanks

No seperate security check for business class passengers and average lounge, open air, so not properly air conditioned

Amazing airline accommodations. The cabins were so great. The food was very good and the flight attendants were so nice. Made a 15 hour flight seem easy.

Impressive as always. It is the airline of my choice, The dessert on the 2nd flight DOH-IAH was somewhat dry (the cake with cream etc) Check-in and boarding experience was fantastic, with the exception of CCU airport where chk-in staff refused to help with aisle seats stating the flight was full and accommodations were beyond him. Once I boarded there were plenty of available aisles. I was disappointed that this could not be done by self during online chk-in nor at the airport. Nothing more to add. Overall a good experience, TY QTR

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

Polite and helpful crew. My son developed fever. Crew members came and gave him medication and also came and enquired about his health several times.

The staffs were very good and helpful especially since we were traveling with a toddler

The boarding process was unpleasant. We had hardly any checked baggage, but they insisted on weighing the cabin baggage. While the weight of our cabin bag was well within limit, it seemed petty! The food was pretty disgusting. I had such awful food on the way over, that I brought some snacks of my own for the flight back. Glad I did. Qatar was consistent in that food was just as terrible on the way back as it was on the way over. The flight attendants were super-nice, though. If I had an option I would not take Qatar Airways again.

Qatar screwed up by delaying our onward journey for refueling, which resulted in missing our connecting flight to India. the airport qater staff at Doha, herded us like cattle in a very incohesive and uncoordinated way. We were then given 2 options: either catch our original flight the Next day ( After 24.hrs) or catch 2 flights instead , to goto our destination in India. All this, for paying a premium for Qatar.

The seats did not have foot rest. If there is no foot rest you can’t sleep.

food in Qatar was terrible. I had ordered asian vegetarian meal but the food lacked any flavor. Choices of entertainment was also very limited. emirates is way better in terms of food and entertainment.

Privacy and comfort of the QSuites is wonderful. The boarding process in Doha is cumbersome and confusing. As transfer passengers, traveling in Business Class, we went through security twice, including one at the gate requiring all electronic devices removed from bags and watches off, which are a great way to lose belongings as a few hundred people rush through to board the plane.

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

Information on your arrival and departure airports