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$111+ Cheap flights from Idaho Falls to Portland (IDA - PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PDX
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
1 adult, Economy
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Cheapflights Tip: The best prices from Idaho Falls Fanning Field to Portland are usually found in April or May, booked 22 days in advance, depart on a Monday or Thursday and return on a Friday

Cheap flight deals from Idaho Falls to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 11, 2025.

Round-trip from

$282
(Hawaiian Airlines)

One-way from

$111
(Kiwi.com)

Popular in

September

Cheapest in

April

Average price

$189

Good round-trip deal

$75 or less

Good one-way deal

$95 or less
From Idaho Falls Fanning Field to Portland
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One-way flight from Idaho Falls Fanning Field to Portland
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Highest demand for flights based on searches. 32% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Idaho Falls Fanning Field to Portland.
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Price to beat on a one-way flight from Idaho Falls Fanning Field to Portland.
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Find flight deals from Idaho Falls to Portland

Cheapest flights from Idaho Falls to Portland
Explore the most affordable flight options available from Idaho Falls to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:50 pmIDA - PDX
1 stop5h 47mAlaska Airlines
Wed 11/55:30 pmPDX - IDA
1 stop5h 29mAlaska Airlines
Deal found 8/11$238
This Hawaiian Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:05 amIDA - PDX
1 stop5h 27mHawaiian Airlines
Wed 11/57:30 amPDX - IDA
1 stop6h 43mHawaiian Airlines
Deal found 8/11$282
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/115:04 pmIDA - PDX
Nonstop1h 37mMultiple Airlines
Sat 8/167:01 pmPDX - IDA
1 stop21h 05mMultiple Airlines
Deal found 8/10$295
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:52 pmIDA - PDX
1 stop4h 43mDelta
Wed 9/175:10 pmPDX - IDA
1 stop4h 15mDelta
Deal found 8/10$299
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:00 amIDA - PDX
1 stop3h 51mDelta
Tue 9/165:15 amPDX - IDA
2 stops16h 10mDelta
Deal found 8/10$316
This Alaska Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:00 amIDA - PDX
1 stop7h 25mAlaska Airlines
Mon 10/67:20 amPDX - IDA
1 stop14h 18mAlaska Airlines
Deal found 8/10$324

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2025.
Use the filters below to find and compare flights from Idaho Falls to Portland that are best for you.

Fly from

Idaho Falls

Fly to

Portland

Route

Depart

Return

Price

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Wed 10/29

3:50 pm-8:37 pm

1 stop5h 47m

Portland

Wed 11/5

5:30 pm-11:59 pm

1 stop5h 29m

$238

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Wed 10/29

6:05 am-10:32 am

1 stop5h 27m

Portland

Wed 11/5

7:30 am-3:13 pm

1 stop6h 43m

$282

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Sat 9/6

6:52 pm-10:35 pm

1 stop4h 43m

Portland

Wed 9/17

5:10 pm-10:25 pm

1 stop4h 15m

$299

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Sat 9/6

6:00 am-8:51 am

1 stop3h 51m

Portland

Tue 9/16

5:15 am-10:25 pm

2 stops16h 10m

$316

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Sat 10/4

6:00 am-12:25 pm

1 stop7h 25m

Portland

Mon 10/6

7:20 am-10:38 pm

1 stop14h 18m

$324

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Thu 9/11

3:57 pm-12:15 am

1 stop9h 18m

Portland

Wed 9/17

1:24 pm-10:39 pm

1 stop8h 15m

$334

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Mon 9/15

9:39 pm-7:23 pm

1 stop22h 44m

$111

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Fri 9/5

10:55 pm-7:23 pm

1 stop21h 28m

$112

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Fri 10/17

10:57 pm-7:04 pm

1 stop21h 07m

$129

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Mon 8/25

5:41 pm-6:57 pm

1 stop26h 16m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 16 results
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Best time to book a flight from Idaho Falls to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to Portland

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

Use this chart to determine the optimal time to book a round-trip flight from Idaho Falls to Portland. Price data was last updated on August 8, 2025.

The best time to book flights from Idaho Falls to Portland is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Idaho Falls to Portland?

Currently, November is the cheapest month in which you can book a flight from Idaho Falls to Portland (average of $277). Flying from Idaho Falls to Portland in March is currently the most expensive (average of $368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IDA to PDX?

Find hourly flight availability from Idaho Falls to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2025.

One of the essential ways to save on airfare from Idaho Falls to Portland is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 79% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Idaho Falls to Portland. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Idaho Falls to Portland flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Idaho Falls to Portland?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated August 11, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Idaho Falls to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,978 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Hawaiian Airlines
7.8
Good
2,647 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,922 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Idaho Falls to Portland flight route?

    This flight path from Idaho Falls Fanning Field to Portland was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Flying on Alaska Airlines is currently your cheapest option to Portland, with prices starting at $238. Another option worth looking into is Hawaiian Airlines, starting at $282 round trip.

  • What are the cheapest flights from Idaho Falls to Portland?

    Looking at all options, your cheapest flight can be booked for $45. While the most popular route (Idaho Falls Fanning Field - Portland) can be booked for $282 on average our data indicates $140 when flying from Idaho Falls to Portland.

  • Can I find deals for flights from Idaho Falls to Portland that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Portland.

  • Can I find deals for business class flights from Idaho Falls to Portland?

    Yes. Cheapflights offers flight deals from Idaho Falls to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho Falls to Portland?

    Currently, November is the cheapest month in which you can book a flight from Idaho Falls to Portland (average of $277). Flying from Idaho Falls to Portland in March is currently the most expensive (average of $368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Lincoln City
Astoria
Cannon Beach
Long Beach
Longview
Tigard
Depoe Bay
Woodburn
Stevenson
Wilsonville
Pacific City
Troutdale
Tillamook

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Top 4 airlines flying from Idaho Falls to Portland

Discover the top 4 airlines that operate flights from Idaho Falls to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$51Average$109FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$162Average$232FlexibilityNo cancel feeOn-time85%
DeltaCheapest$191Average$412FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$232Average$395FlexibilityNo cancel feeOn-time75%

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