For booking cheap Alaska Airlines reservations, the passenger is required to check out some of the tips discussed in this article to grab the best fare for the booking, or if required one can even contact the airline directly. 

For those who frequently travel with Alaska Airlines and have opted for the frequent flyer program, they can redeem points to confirm the booking with the airline.
The passenger can even try to confirm the flight tickets in advance to grab the best fare for their booking. 
One can even check out the deals section of the airline to find the best deals and vacation packages for their booking.
Moreover, the passenger can even grab seasonal deals for their Alaska Airlines reservations and plan out their trip. 
Besides, the passenger can try to book red-eye flights to book cheap flight tickets. 
The passenger can even try to subscribe to the newsletter to keep a track of the ongoing deals and offers.
Moreover, if required that the passenger can follow the airline on various social media handles and plan out the trip in time. 

Thus, these are the few tips that one can follow to book an affordable flight ticket with the airline. So, keep these tips in mind and plan out your trip accordingly.