As travelers are finally booking vacations after a long year of no travel, Alaska Airlines is proclaiming itself “The Official Airline of Rescheduled Events.” To kick-start this campaign, Alaska is offering its biggest sale of 2021. Fares start at just $39 one-way, perfect for your travels to Hawaii, Alaska and Montana thanks to the airline’s expansive route network.For more TPG news and deals delivered each morning to your inbox, sign up for our daily newsletter.Starting today, Aug. 3, you’ll have until Aug. 5 (at 11:59 p.m. PDT) to snag one of these incredible fares before they’re long gone. Throughout the rest of August, Alaska is “planning a month full of surprises with additional promotions,” so be sure to keep your eyes peeled for more to come.Airline: Alaska AirlinesRoutes: Between SEA/LAX/SFO/SAN/FAT/SMF/SJC/PDX/LAS/OGG/LIH/KOA/BZN/ANC and moreCost: From $39 one-wayDates: Book from Aug. 3 to Aug. 5 for travel between Sept. 17 and Nov. 17, or Nov. 30 to Dec. 15.Pay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline or through Amex Travel on up to $500,000 on these purchases per calendar year), Citi Premier® Card (3x on airfare), Chase Sapphire Reserve (3x on air travel), American Express® Gold Card (3x on airfare when booked directly with the airline or through Amex Travel) or Chase Sapphire Preferred Card (2x on travel).Here are just a few examples of flights that are available from Alaska Airlines as part of this three-day sale:Los Angeles (LAX) to Fresno/Yosemite (FAT) from $39 one-way(Screenshot courtesy of Alaska Airlines)Boise (BOI) to Sacramento (SMF) from $49 one-way(Screenshot courtesy of Alaska Airlines)Bozeman (BZN) to Los Angeles (LAX) from $69 one-way(Screenshot courtesy of Alaska Airlines)New York (JFK) to San Francisco (SFO) from $99 one-way(Screenshot courtesy of Alaska Airlines)San Diego (SAN) to Lihue (LIH) from $99 one-way(Screenshot courtesy of Alaska Airlines)Portland (PDX) to Anchorage (ANC) from $119 one-way(Screenshot courtesy of Alaska Airlines)Seattle (SEA) to Maui (OGG) from $149 one-way(Screenshot courtesy of Alaska Airlines)If you’re not quite ready to travel the rest of this year, Alaska is among the many domestic airlines that have permanently eliminated change fees on Main and First Class fares. This means you can book now and reschedule later if necessary.Maui, Hawaii. (Photo by Clint Henderson/The Points Guy)How to bookThere are no tricks or special codes needed to find these fares.Head to Alaska Airlines and plug in your desired departure and destination cities. Filter your search to only show Alaska Airlines flights. Then, use the calendar function to find dates and prices that work for you.Maximize your purchaseDon’t forget to use a card that earns additional points on airfare purchases, such as The Platinum Card from American Express (5x on flights booked directly with airlines or Amex Travel), Chase Sapphire Reserve (3x on air travel), American Express Gold Card (3x on flights booked directly with airlines or Amex Travel), Citi Premier Card (3x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this guide for more on maximizing airfare purchases.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.