Source: https://www.expedia.com/Alaska-Airlines-Flights.cAS.Travel-Guide-Airlines?AID=10581071&PID=4194083&URL=https%3A%2F%2Fwww.expedia.com%2FAlaska-Airlines-Flights.cAS.Travel-Guide-Airlines&affcid=network.cj.4194083.10581071.