To Kolkata

Cheap Flights from Seattle to Kolkata

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

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

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Seattle to Kolkata

Explore current cheapest deals departing from Seattle to Kolkata

Round trip

Sort by: Cheapest

November 6 - November 29

Cheapest

Best

SEA - Kolkata

$1,193

$1,047

Round trip

November 15 - November 29

Best

SEA - Kolkata

$1,203

$1,051

Round trip

November 14 - November 28

SEA - Kolkata

$1,203

$1,061

Round trip

October 12 - October 24

SEA - Kolkata

$1,225

$1,073

Round trip

November 7 - November 29

SEA - Kolkata

$1,193

$1,073

Round trip

October 16 - October 23

SEA - Kolkata

$1,245

$1,111

Round trip

October 6 - October 30

SEA - Kolkata

$1,207

$1,118

Round trip

July 27 - August 22

Earliest

SEA - Kolkata

$1,201

$1,153

Round trip

September 13 - September 19

SEA - Kolkata

$1,242

$1,166

Round trip

September 15 - September 19

SEA - Kolkata

$1,271

$1,166

Round trip

Unlock all 500+ flight deals to Kolkata and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

How much is a round trip from Seattle to Kolkata

Regular price: $1,070 - $1,707

Prices for flights from Seattle to Kolkata are currently below the regular range.

The regular price range for this route is between $1070 and $1707. The current lowest deal is $1045 with Singapore Airlines, for travel from Nov 6 to Nov 29.

now $1,045

Low $1,070

High $1,707

The cheapest time to fly from Seattle to Kolkata

The cheapest month to fly from Seattle to Kolkata is April, with a median price of $551. The most expensive month is June, with a median price of $1438. Prices are generally lower from April to July.

April

Cheapest

Flights from $551

June

Most Expensive

Flights from $1,438

Apr

May

Jun

Jul

Nov

Direct flights from Seattle to Kolkata

Qatar Airways

Korean Air

Singapore Airlines

Thai Airways International

Last-minute flights going from Seattle to Kolkata

Thu, Jun 18

⌛ Last-Minute

SEA - Kolkata

Seattle (SEA) - Kolkata (CCU)

Alaska Airlines, Inc.

$1,417

$1,922

One-way

Wed, Jul 1

⌛ Last-Minute

SEA - Kolkata

Seattle (SEA) - Kolkata (CCU)

Alaska Airlines, Inc.

$1,240

$1,489

One-way

Wed, Jul 1

⌛ Last-Minute

SEA - Kolkata

Seattle (SEA) - Kolkata (CCU)

Alaska Airlines, Inc.

$1,253

$1,721

One-way

Thu, Jul 2

⌛ Last-Minute

SEA - Kolkata

Seattle (SEA) - Kolkata (CCU)

Qatar Airways

$1,268

$1,739

One-way

Thu, Jul 9

⌛ Last-Minute

SEA - Kolkata

Seattle (SEA) - Kolkata (CCU)

Korean Air

$1,227

$1,322

One-way

Fri, Jul 10

⌛ Last-Minute

SEA - Kolkata

Seattle (SEA) - Kolkata (CCU)

Turkish Airlines

$1,222

$1,362

One-way

Biggest price drops on these dates for flights from Seattle to Kolkata

14 nights

Nov 15 - Nov 29

$1,203 → $1,049

13%

12 nights

Oct 12 - Oct 24

$1,225 → $1,074

12%

23 nights

Nov 6 - Nov 29

$1,193 → $1,045

12%

21 nights

Dec 5 - Dec 26

$1,455 → $1,308

10%

Popular Airports to fly from Seattle to Kolkata

Seattle - Kolkata route insights

💸 Price insights

Recent fares near the typical level

Recent fares for Seattle to Kolkata are near the typical level, with a median price of $807.

📅 Best time to fly

April is historically cheapest

Historically, April is the cheapest month to fly from Seattle to Kolkata, with a median price of $551.

⏱️ Flight duration

Long-haul flights, 27h 40m median

Flights from Seattle to Kolkata are long-haul, with a median duration of 27 hours 40 minutes.

✈️ Airlines & availability

Connecting flights dominant

Connecting flights are dominant for this route, with a median of 2 stopovers.

🏆 Airline highlight

Qatar Airways offers many deals

Qatar Airways has offered 18 deals for flights from Seattle to Kolkata recently.

🎯 Booking tip

Deals appear regularly

Deals for this route appear regularly, with an average of 0.2 deals per day over 30 days.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a convenient departure point for flights to Kolkata.

📍 ~20 km from Seattle city center (reachable by car)

💸 Flights from ~$1045

Boeing Field (BFI)

Boeing Field offers an alternative departure option from Seattle for your trip to Kolkata.

📍 ~10 km from Seattle city center (reachable by car)

💸 Flights from ~$2084

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base provides another departure choice from Seattle to Kolkata.

📍 ~5 km from Seattle city center (reachable by car)

💸 Flights from ~$2640

Kolkata main airports to arrive at

Netaji Subhas Chandra Bose International (CCU)

Cheapest

Netaji Subhas Chandra Bose International Airport is the primary gateway for flights to Kolkata.

📍 ~15 km from city center (reachable by car)

💸 Flights from ~$1045

Airports nearby Kolkata used as alternative

Kazi Nazrul Islam (RDP)

Kazi Nazrul Islam Airport (RDP) is a useful alternative for travelers seeking a domestic arrival point within West Bengal.

📍 ~150 km from Kolkata (reachable by car or train)

💸 Flights from ~$1216

Biju Patnaik International (BBI)

Biju Patnaik International Airport (BBI) is a major regional hub with strong rail connectivity to Kolkata.

📍 ~380 km from Kolkata (reachable by train; ~6-7 hours ground travel)

💸 Flights from ~$1141

Birsa Munda (IXR)

Birsa Munda Airport (IXR) offers another domestic arrival option in the neighboring state of Jharkhand.

📍 ~320 km from Kolkata (reachable by ground transport; ~8-9 hours)

💸 Flights from ~$1174

Bagdogra (IXB)

Cheapest

Bagdogra Airport (IXB) is a popular gateway for North Bengal and Northeast India, offering an alternative arrival.

📍 ~450 km from Kolkata (usually requires a flight or overnight train)

💸 Flights from ~$1093

Jay Prakash Narayan International (PAT)

Jay Prakash Narayan International Airport (PAT) provides an extensive domestic network for travelers heading towards North/Central India.

📍 ~470 km from Kolkata (longest travel distance among recommended domestic alternatives)

💸 Flights from ~$1111

Business & First Class Flight Deals to Kolkata

Kolkata, India

68% AI deal score

$9,321

Frequently Asked Questions About Flights to Kolkata

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking platforms can also help uncover better deals. Look out for layovers, as these flights are often less expensive than direct options.

Booking flights in advance, often several months before your intended departure, can sometimes result in lower fares. Prices may fluctuate, so monitoring them over time can help you identify a good booking window. Weekday travel can also sometimes offer better value.

Comparing nearby airports at both your origin and destination can sometimes reveal more affordable flight options. While it may add to your ground travel time, the savings on airfare can be significant. Always factor in the total cost and convenience when considering this approach.

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Cheap Flights from Seattle to Kolkata

Today’s best flight deals from Seattle to Kolkata

Unlock all 500+ flight deals to Kolkata and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

How much is a round trip from Seattle to Kolkata

The cheapest time to fly from Seattle to Kolkata

Direct flights from Seattle to Kolkata

Last-minute flights going from Seattle to Kolkata

Biggest price drops on these dates for flights from Seattle to Kolkata

Popular Airports to fly from Seattle to Kolkata

Seattle - Kolkata route insights

Recent fares near the typical level

April is historically cheapest

Long-haul flights, 27h 40m median

Connecting flights dominant

Qatar Airways offers many deals

Deals appear regularly

Seattle main airports to depart from

Kolkata main airports to arrive at

Airports nearby Kolkata used as alternative

Business & First Class Flight Deals to Kolkata

Best Elite deals to Kolkata

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Frequently Asked Questions About Flights to Kolkata

How can I find cheap flights from Seattle to Kolkata?

How can I find cheap flights from Seattle to Kolkata?

When should I book flights from Seattle to Kolkata?

When should I book flights from Seattle to Kolkata?

Should I compare nearby airports for flights from Seattle to Kolkata?

Should I compare nearby airports for flights from Seattle to Kolkata?

Are direct flights from Seattle to Kolkata always the best option?

Are direct flights from Seattle to Kolkata always the best option?

Can flexible travel dates help on Seattle to Kolkata flights?

Can flexible travel dates help on Seattle to Kolkata flights?