Departing on a Monday is a good option for securing a great price. You can expect to save up to 31% when planning your travel around this day of the week.
To save up to 11% on this flight, we recommend booking at least 28 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Idaho Falls to Washington from $252 1-2 weeks out and tickets from $276 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Washington. Flights to Washington from Idaho Falls in February are about $243 on average during February, but can be found for as low as $119.
One of the essential ways to save on airfare from Idaho Falls to Washington is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 20% on airfare.