Cheap flights from Oregon to Idaho from $41

In general, July is the cheapest month to fly from Oregon to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $39. If you don’t want to visit Idaho in July, then you should wait until August to fly from Oregon, when ticket prices are also cheap, with an average price of $58.

Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $269. On the other hand, Sunday is the most expensive day to depart from Oregon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $348.

According to our data, the cheapest time of day to fly to Idaho is in the evening. momondo users have found flights departing from Oregon to Idaho in the evening for as low as $260. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $302 per ticket.

Fly from Portland to Idaho Falls Fanning Field for the best Oregon - Idaho flight prices

You are more likely to see cheaper flights to Idaho from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $277 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Oregon for as low as $211 on momondo.

There are 4 cabin classes available to choose from on Oregon to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Southwest, and Delta are the most popular carriers operating from Oregon to Idaho

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Idaho from Oregon according to our data. Alaska Airlines is the first choice among our users, with 72% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

The number of flights available between Oregon and Idaho is 16 per day as of June 2026. The most frequent departure time is 10:00AM, with 44% of daily flights leaving at noon.

The number of flights available between Oregon and Idaho is 116 per week as of June 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.