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SEA Welcomes WestJet Inaugural Flight with New Service to Calgary

Newest airline to join SEA family is Canada’s second-largest carrier
November 5, 2021

The Port of Seattle this week welcomed the inaugural WestJet Airlines service to Calgary (YYC) as the newest airline to join the team at Seattle-Tacoma International Airport (SEA). This is WestJet’s first service to SEA and provides additional options for travelers to and from Alberta’s largest city.

“WestJet is a valuable addition to passenger choices here at SEA, giving business and leisure travelers the opportunity to enjoy the beautiful Canadian Rockies, the Calgary Stampede, or maybe see a competitor of the new Seattle Kraken of the NHL,” said Lance Lyttle, SEA Airport Managing Director. “As travel options continue to re-start from the last year, we’re excited to see an airline like WestJet show the confidence they have in the Puget Sound region as a positive choice for them to serve visitors, business, and residents of both regions.”

WestJet service to SEA includes four weekly flights using WestJet Encore’s Q400 aircraft, increasing to two daily flights by May 19, 2022.

“We are thrilled to foster direct connectivity between Calgary and Seattle for the first time on a route that our guests and both cities have long awaited,” said Chris Hedlin, WestJet, Vice-President, Network and Alliances. “This route will bolster economic ties between the regions and will stimulate Alberta’s visitor economy as we continue to strengthen our transborder network from our global hub in Calgary.” 

With Calgary’s U.S. preclearance facilities, passengers will be able to clear U.S. Customs & Immigration before leaving Canada, arriving as a domestic flight at SEA and allowing for shorter connection times for onward travelers. And as a close partner of Delta Air Lines, passengers on WestJet will be able to earn miles and enjoy reciprocal elite loyalty benefits on either airline.

Initial Schedule



Flight #



YYC to SEA Mon, Thu, Fri, Sun WS3612 11:00 a.m. 11:44 a.m.
SEA to YYC Mon, Thu, Fri, Sun WS3613 12:30 p.m. 3:06 p.m.

International Service at SEA

With the addition of WestJet this week, 30 international services are now operating at SEA, compared to 42 international services pre-pandemic. Over three-quarters of SEA’s pre-pandemic international services are expected to have resumed by the end of 2021, including several services that continued throughout the pandemic.

Even though the WestJet service will be pre-cleared, the new International Arrivals Facility, the most complex capital development project in the history of the airport, will dramatically improve connection time, efficiency, and service to millions of annual international travelers. The facility will increase the number of gates capable of serving international wide-body airplanes from 12 to 20.


Perry Cooper | SEA Airport Media Officer
(206) 787-4923 |


Top photo credit: Tom Day, Tourism Calgary 

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