Airport Tips & Quick Reference Guide to Calgary International Airport -YYC

WS1550 WestJet - Flight Status

Codeshare Flights
The flight DL6943 from Delta Air Lines (DL) is a codeshare flight operated by WestJet (WS) under the flight number WS1550. Check this page for details about flight WS1550.

Below, you can find details about WestJet flight WS1550, which currently operates between the airports of Calgary - Calgary International Airport (Airport Code YYC) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Thursday, April 30, 2026.

WS1550 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

WS1550 WestJet to Seattle

Landed - On-time
Flight Status for Thursday April 30, 2026

Airline information

WestJet
WestJet
Equipment: Boeing 737-700 (winglets) Passenger/BBJ1

Departure

Calgary (YYC)
April 30, 2026
Calgary International Airport
Departed at:
08:36 am
Concourse:
E
Gate:
E85
Scheduled Departure Time: 08:45 am

Arrival

Seattle (SEA)
April 30, 2026
Seattle-Tacoma International Airport
Arrived at:
09:15 am
Terminal:
E
Gate:
C5L1
Scheduled Arrival Time: 09:40 am
Baggage: 2
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.calgary-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- DL6943 - Delta Air Lines

Additional Information

Which is the frequency of flight WS1550?
The flight WS1550 is scheduled to flight on Monday, Tuesday, Wednesday, Thursday on a weekly basis.

Which is the distance of flight WS1550?
The distance between the two airports is 452 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Calgary: 2026-04-30 19:27:48
Current Time in Seattle: 2026-04-30 18:27:48

Alternative Flights

The following airlines serves the same route between Calgary and Seattle:

Alaska Airlines
- Flight Number: AS2308. (On Time performance: 84 - Average Delay: 12 minutes)

WestJet
- Flight Number: WS1552. (On Time performance: 68 - Average Delay: 14 minutes)
- Flight Number: WS3750. (On Time performance: 54 - Average Delay: 15 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from April 27, 2025 to October 25, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.

Last Past Flights WS1550

Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
29 April
09:48 am
Calgary (YYC)
10:49 am
Seattle (SEA)
02h 01min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
28 April
08:35 am
Calgary (YYC)
09:24 am
Seattle (SEA)
01h 49min
Boeing 737-700
Boeing 737-700
Landed - On-time
Monday
27 April
08:39 am
Calgary (YYC)
09:31 am
Seattle (SEA)
01h 52min
Boeing 737MAX
Boeing 737MAX
Landed - On-time