Cheap flights from Portland to Idaho Falls (PDX - IDA) from $54

This is the cheapest one-way flight price, found on 9/20. Prices may vary by date and flight preferences.
PDX — IDA
Sep 26 — Oct 31

The best prices from Portland to Idaho Falls Fanning Field are usually found in April or May, booked 60 days in advance, depart on a Monday or Thursday and return on a Tuesday

How to find the cheapest flight from Portland (PDX) to Idaho Falls (IDA)

All the information you need to plan the best PDX to IDA flight in 2023: compare Portland to Idaho Falls flight prices with the expected peak season, weather and rainfall in Idaho Falls.

Popular in

January

Cheapest in

April

Round-trip from

$457

One-way from

$54
High demand for flights, 43% potential price rise
Best time to find cheap flights, 53% potential price drop
From Portland to Idaho Falls Fanning Field
One-way flight from Portland to Idaho Falls Fanning Field

PDX - IDA

Price

$457 - $756

IDA

Temperature

23 - 69.8 °F

IDA

Rainfall

0.6 - 2 inches

What is the cheapest day to fly round-trip from Portland to Idaho Falls?

Users have found that flying from Portland to Idaho Falls on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Portland to Idaho Falls?

To save up to 132% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland to Idaho Falls from $280 1-2 weeks out and tickets from $572 for flights departing within the next 72 hours.

What is the cheapest month to fly from Portland to Idaho Falls?

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, April can be a great choice for travel to Idaho Falls. Flights to Idaho Falls from Portland in April are about $289 on average during April, but can be found for as low as $77.

When is the cheapest time to fly from Portland to Idaho Falls (PDX - IDA)?

It’s typically best to fly out from Portland to Idaho Falls in the morning. Doing so could potentially save you 5% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Delta flights from Portland to Idaho Falls

Consider these cheap Delta flights we've found departing from Portland to Idaho Falls. It's recommended that users confirm their flight details before booking.

Cheap United Airlines flights from Portland to Idaho Falls

Some of the lowest-priced United Airlines flights we've found at this time heading from Portland to Idaho Falls. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Portland to Idaho Falls flights in September & October 2023

The best prices found for PDX to IDA flights for September, October
These are some of the most attractive deals on flights from Portland to Idaho Falls in 2023. Check back soon for alternative fares.

Portland to Idaho Falls 2023 flight deals

Cheap flights to Idaho Falls from Portland found for this year
These are some of the most attractive deals on flights from Portland to Idaho Falls in 2023. Check back soon for alternative fares.

Non-stop flights to Idaho Falls from Portland

Save time with Portland to Idaho Falls direct flight deals
Take a look at some of the direct flights traveling from Portland to Idaho Falls in the near future. Users can also choose from other Portland to Idaho Falls flights by using the search form above.

Portland to Idaho Falls flights leaving soon

Late deals on return flights to Idaho Falls from Portland, departing today and this week
Consider one of these great deals we found on last-minute flights from Portland to Idaho Falls. Tip: verify your flight details before completing your reservation.

One-way flights to Idaho Falls from Portland

The cheapest one-way flights from Portland to Idaho Falls
Take a look at some of the best available options we've come across on one-way flights from Portland to Idaho Falls. Those needing a return flight from Portland to Idaho Falls can use the search form above.

Find flights from Portland to Idaho Falls within your budget

Use the slider to find flights from Portland to Idaho Falls that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$103 - $385

Route

Depart

Return

Price

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Fri 10/6

Nonstop1h 34m

Idaho Falls Fanning Field

Mon 10/9

Nonstop1h 38m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Fri 10/6

Nonstop1h 34m

Idaho Falls Fanning Field

Mon 10/9

1 stop13h 41m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Thu 10/5

1 stop10h 54m

Idaho Falls Fanning Field

Mon 10/9

Nonstop1h 38m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Fri 10/6

Nonstop1h 34m

Idaho Falls Fanning Field

Mon 10/9

2 stops13h 06m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Thu 10/5

1 stop10h 54m

Idaho Falls Fanning Field

Mon 10/9

1 stop13h 41m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Tue 11/14

1 stop5h 52m

Idaho Falls Fanning Field

Sat 12/2

1 stop7h 01m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Tue 11/14

1 stop5h 52m

Idaho Falls Fanning Field

Sat 12/2

2 stops8h 39m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Thu 11/2

1 stop6h 01m

Idaho Falls Fanning Field

Sun 11/5

2 stops5h 55m

PortlandIdaho Falls Fanning Field

PDX - IDA

PDXIDA

Portland

Fri 10/27

1 stop21h 33m

Idaho Falls Fanning Field

Wed 11/1

1 stop16h 48m

Flights are sorted by cheapest first

Deals found on 9/21

Reviews of airlines servicing Idaho Falls

To help decide which airline to fly from Portland to Idaho Falls, see what other customers have to say about Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,393 reviews

Entertainment

7.2

Boarding

8.3

Food

7.2

Comfort

8.0

Crew

8.6

Overall

8.1

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Alaska Airlines
8.1
Very good
1,393 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Entertainment

7.2

Boarding

8.3

Food

7.2

Comfort

8.0

Crew

8.6

Overall

8.1

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Delta
7.9
Good
3,018 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Entertainment

7.2

Boarding

8.3

Food

7.2

Comfort

8.0

Crew

8.6

Overall

8.1

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Allegiant Air
7.5
Good
103 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Entertainment

7.2

Boarding

8.3

Food

7.2

Comfort

8.0

Crew

8.6

Overall

8.1

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

United Airlines
7.4
Good
1,887 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Entertainment

7.2

Boarding

8.3

Food

7.2

Comfort

8.0

Crew

8.6

Overall

8.1

Reviews

1 / 10

No food for a 5-6 hour flight unless you pay extra, and then it's minimal. Also no in-flight "entertainment" (ie videos or music).This is the new norm but it sucks. Not just Alaska Airlines; I like Alaska Airlines. The whole airline industry is trying to extract as much/deliver as little as possible. Why was it possible 20 years ago to check a bag and have a meal on a long flight? I will obviously keep flying since I have no choice if I need to be somewhere, but how the travel industry (not just the travel industry--also, health care and more) operates these days makes me question humanity. Does everything boil down to money, and the ones in charge getting every penny they can possibly get?

Related info for your journey

Useful info, stats and facts about Portland to Idaho Falls flights.

Can I find flights from Portland to Idaho Falls for under $200 on Cheapflights?

Yes, there are multiple flights from Portland to Idaho Falls for under $200. The cheapest flight booked recently is on Allegiant Air for just $103, but on average you can expect to pay $348.

Are there nonstop flights from Portland to Idaho Falls for under $200 on Cheapflights?

Cheapflights has at least 1 direct flight from Portland to Idaho Falls under $200. A good price for a nonstop flight from Portland to Idaho Falls is less than $103.

Are there last-minute flights available from Portland to Idaho Falls for under $400?

There are currently 8+ open flights from Portland to Idaho Falls within the next 7 days for less than $400.

What are the cheapest airlines flying from Portland to Idaho Falls round-trip?

Our cheapest airline available from Portland to Idaho Falls is Allegiant Air. Our recent data shows that you can find tickets from as low as $103 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $317 and $385 round-trip. These flights start at 64% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Portland to Idaho Falls one-way?

One-way options have recently been found by users for as low as $54 on Allegiant Air. Other airlines that offer cheap prices include Delta from $167 and Alaska Airlines from $248 one-way.

What are the most popular airlines that fly from Portland to Idaho Falls?

What are the cheapest flights from Portland to Idaho Falls?

While on average a flight from Portland to Idaho Falls is generally $89, our data shows the cheapest flight currently is $51. When looking at the most popular route, (Portland - Idaho Falls Fanning Field), you can expect to pay $78 for that flight.

What does PDX to IDA mean?

Great question - PDX to IDA just means Portland Airport to Idaho Falls Fanning Field Airport. Now you’ll know what these unique codes when you look for flights!

Alternative routes for Portland to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Boisefrom $109 pp

Top 3 airlines flying from Portland to Idaho Falls

The chart below displays the airlines Cheapflights users traveling from Portland to Idaho Falls choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$72Average$114FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights
Alaska AirlinesCheapest$242Average$428FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$295Average$546FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Hourly flight availability from Portland to Idaho Falls

See what time of day planes typically take off from Portland to Idaho Falls
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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