Cheap flights from Oregon to Idaho from $98

In general, February 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 $235. If you don’t want to visit Idaho in February, then you should wait until April to fly from Oregon, when ticket prices are also cheap, with an average price of $285.

Our data shows that Saturday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $275. 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 $275. 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 morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $315 per ticket.

Fly from Portland to Boise Air Term. Gowen Fld 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 $298 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 $217 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.

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

Alaska Airlines, Delta and Allegiant Air 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 79% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 6 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 14 per day as of September 2026. The most frequent departure time is 9:00PM, with 46% of daily flights leaving at noon.

The number of flights available between Oregon and Idaho is 100 per week as of September 2026. The most frequent departure day is Tue, with 18% of weekly flights leaving on this day.