$134 Find Cheap Flights from Portland to Idaho Falls - Compare and Save

One option that sits just to the south of the entrance to the airport at the junction of Interstate 15 and Highway 20 is the Best Western Plus Cottontree Inn.

There are roughly six different major rental car companies that operate at this airport, and all of them sit on the arrival side of the airport as you make your way to the baggage claim area. Once you have picked up your contract and your keys, you will find that all rental cars have a location in the parking lot adjacent to the terminal, right outside the exit of the baggage claim.

One option that utilizes public transportation is to travel on the Salt Lake Express buses that make the trip from the airport to the downtown area in around 5min. If you would instead like to take a taxi on this route, you should expect a travel time of about 9min.

Drivers looking to drop off passengers can use one of the dedicated drop-off areas in front of the terminal building on both the upper and lower-level roadways. It is important to remember that only active unloading of passengers can occur in this location, and drivers cannot leave their vehicles unattended for any amount of time.

Among airlines operating Portland to Idaho Falls flights:

• Alaska Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Alaska Airlines operates flights between Portland and Idaho Falls.

Flights from Portland to Idaho Falls usually depart from Portland (PDX) and arrive at Idaho Falls Fanning Field (IDA).

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Only Economy Class is available on flights from Portland to Idaho Falls.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $238 round-trip, compared to $476 via a layover through Salt Lake City (SLC).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $30–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A320-100/200 family is used most often on this route, operated mainly by Allegiant Air. Other aircraft seen on the route include Embraer 175 variants.

One-stop flights from Portland to Idaho Falls most commonly connect through:

• Salt Lake City (SLC) - 49% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 46% of one-stop connections
• Denver Intl (DEN) - 5% of one-stop connections

Salt Lake City (SLC) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 72% on the Portland to Idaho Falls route. Friday is the cheapest departure day at $144 round-trip on average, while Saturday is the most expensive at $499, a difference of $355. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Portland to Idaho Falls flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

These are the earliest and latest flight times available from Portland to Idaho Falls:

• Earliest: departs at 10:30 am and lands at 12:21 pm
• Latest: departs at 10:31 am and lands at 12:22 pm.

The flight takes about 1h 51m.

A nonstop flight from Portland to Idaho Falls takes 1h 51m, covering 537 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $247 to $1,041. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Portland to Idaho Falls are currently lower than usual. Average one-way flight prices are about $174, which is 13% below the typical average for this route.

Flying via Seattle/Tacoma Intl (SEA) gives the shortest average 1-stop total travel time at 4h 22m, compared with 4h 31m via Salt Lake City (SLC) and 8h 46m via Denver Intl (DEN).

Idaho Falls is 1 hour ahead of Portland (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:
· Alamo
· Hertz
· Enterprise Rent-A-Car
· Budget
· National

Round-trip flights from Portland to Idaho Falls range from $174 to $434, with an average of $272 over the past 12 months. Anything below $174 counts as a good deal.

Alaska Airlines is the only airline on the Portland to Idaho Falls route offering in-flight Wi-Fi. Pricing depends on fare class.