Cheap flights from Boise to Portland from $110

The cheapest month to fly to Portland from Boise is in December. Flight prices, which tend to average around $208, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in December, then you should wait until October to fly from Boise, when ticket prices are also cheap, with an average price of $223.

The cheapest day to depart on your flight to Portland is on a Friday when prices can be found for as low as $355. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $439.

The cheapest time of day to fly to Portland is in the afternoon when flights can be purchased for as low as $317. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $444 per ticket.

Fly from Boise Air Term. Gowen Fld to Portland for the best Boise Air Term. Gowen Fld - Portland flight prices

You are more likely to see cheaper flights to Portland from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $278 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Boise for as low as $218 on momondo.

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

You could potentially save up to 31% on your flight if you consider stops on a Boise to Portland flight.

As of September 2026, prices for Boise to Portland flights are approximately 40% more expensive when compared to flights at the same time last year.

Delta, Southwest, and United Airlines are the most popular carriers operating from Boise Air Term. Gowen Fld to Portland

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Portland from Boise according to our data. Alaska Airlines is the first choice among our users, with 91% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 3 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

As of September 2026, 3 flights take off from Boise and land in Portland each day. The most common flight departure time for this route is 9:00AM, with 44% of daily flights taking off in the afternoon.

26 flights are operational weekly from Boise to Portland as of September 2026. The most popular departure day for this route is Sat, with 27% of flights per week taking off on this day.