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Cheap flights from Idaho Falls to Portland from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Portland departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Idaho Falls to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:20 pm - 10:41 pm
IDA
-
PDX
6h 21m
1 stop
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$229Alaska Airlines
Fri, Feb 27 - Mon, Mar 2
Alaska Airlines Logo
8:00 am - 4:47 pm
IDA
-
PDX
9h 47m
2 stops
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$260Alaska Airlines
Wed, Mar 4 - Tue, Mar 10
Alaska Airlines Logo
5:20 pm - 10:41 pm
IDA
-
PDX
6h 21m
1 stop
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$264Alaska Airlines
Fri, Feb 27 - Mon, Mar 2
Alaska Airlines Logo
8:00 am - 4:47 pm
IDA
-
PDX
9h 47m
2 stops
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$274Alaska Airlines
Tue, Mar 3 - Wed, Mar 11
Alaska Airlines Logo
8:00 am - 10:46 am
IDA
-
PDX
3h 46m
1 stop
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$277Alaska Airlines
Wed, Mar 4 - Mon, Mar 9
Alaska Airlines Logo
5:20 pm - 10:41 pm
IDA
-
PDX
6h 21m
1 stop
Alaska Airlines Logo
2:50 pm - 11:36 pm
PDX
-
IDA
7h 46m
2 stops
$283Alaska Airlines
Sat, Mar 7 - Mon, Mar 9
Alaska Airlines Logo
8:00 am - 4:47 pm
IDA
-
PDX
9h 47m
2 stops
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$291Alaska Airlines
Wed, Mar 4 - Sat, Mar 7
Alaska Airlines Logo
5:20 pm - 6:17 am
IDA
-
PDX
13h 57m
2 stops
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$293Alaska Airlines
Mon, Mar 2 - Sat, Mar 7
Alaska Airlines Logo
5:20 pm - 10:41 pm
IDA
-
PDX
6h 21m
1 stop
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m
1 stop
$297Alaska Airlines
Mon, Mar 2 - Tue, Mar 10
Alaska Airlines Logo
8:00 am - 10:46 am
IDA
-
PDX
3h 46m
1 stop
Alaska Airlines Logo
2:45 pm - 11:36 pm
PDX
-
IDA
7h 51m
2 stops
$298Alaska Airlines
Fri, Mar 6 - Sat, Mar 7

Delta flights from Idaho Falls to Portland

Our best Delta deals on Idaho Falls to Portland flight tickets
Delta
Mar 3
IDA6:35 pmIdaho Falls Fanning Field
6h 18m
1 stop
PDX11:53 pmPortland
Mar 8
PDX5:45 amPortland
15h 31m
1 stop
IDA10:16 pmIdaho Falls Fanning Field
$301
Delta
Feb 8
IDA5:25 amIdaho Falls Fanning Field
4h 44m
1 stop
PDX9:09 amPortland
Feb 9
PDX5:08 pmPortland
4h 49m
1 stop
IDA10:57 pmIdaho Falls Fanning Field
$398
Delta
Feb 6
IDA1:15 pmIdaho Falls Fanning Field
3h 48m
1 stop
PDX4:03 pmPortland
Feb 9
PDX5:08 pmPortland
4h 49m
1 stop
IDA10:57 pmIdaho Falls Fanning Field
$454

Alaska Airlines flights from Idaho Falls to Portland

Our best Alaska Airlines deals on Idaho Falls to Portland flight tickets
Alaska Airlines
Feb 27
IDA5:20 pmIdaho Falls Fanning Field
6h 21m
1 stop
PDX10:41 pmPortland
Mar 2
PDX3:52 pmPortland
6h 44m
1 stop
IDA11:36 pmIdaho Falls Fanning Field
$229
Alaska Airlines
Mar 4
IDA8:00 amIdaho Falls Fanning Field
9h 47m
2 stops
PDX4:47 pmPortland
Mar 10
PDX3:52 pmPortland
6h 44m
1 stop
IDA11:36 pmIdaho Falls Fanning Field
$260
Alaska Airlines
Feb 27
IDA5:20 pmIdaho Falls Fanning Field
6h 21m
1 stop
PDX10:41 pmPortland
Mar 2
PDX3:52 pmPortland
6h 44m
1 stop
IDA11:36 pmIdaho Falls Fanning Field
$264

momondo 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, momondo users made 832,500 searches. Data last updated January 28, 2026.
Use the filters below to find and compare flights from Idaho Falls to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-10:41 pm

1 stop6h 21m

Portland

Mon 3/2

3:52 pm-11:36 pm

1 stop6h 44m

$229

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Wed 3/4

8:00 am-4:47 pm

2 stops9h 47m

Portland

Tue 3/10

3:52 pm-11:36 pm

1 stop6h 44m

$260

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-10:41 pm

1 stop6h 21m

Portland

Mon 3/2

3:52 pm-11:36 pm

1 stop6h 44m

$264

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Tue 3/3

8:00 am-4:47 pm

2 stops9h 47m

Portland

Wed 3/11

3:52 pm-11:36 pm

1 stop6h 44m

$274

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Wed 3/4

8:00 am-10:46 am

1 stop3h 46m

Portland

Mon 3/9

3:52 pm-11:36 pm

1 stop6h 44m

$277

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Sat 3/7

5:20 pm-10:41 pm

1 stop6h 21m

Portland

Mon 3/9

2:50 pm-11:36 pm

2 stops7h 46m

$283

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Wed 3/4

8:00 am-4:47 pm

2 stops9h 47m

Portland

Sat 3/7

3:52 pm-11:36 pm

1 stop6h 44m

$291

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Mon 3/2

5:20 pm-6:17 am

2 stops13h 57m

Portland

Sat 3/7

3:52 pm-11:36 pm

1 stop6h 44m

$293

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Mon 3/2

5:20 pm-10:41 pm

1 stop6h 21m

Portland

Tue 3/10

3:52 pm-11:36 pm

1 stop6h 44m

$297

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Fri 3/6

8:00 am-10:46 am

1 stop3h 46m

Portland

Sat 3/7

2:45 pm-11:36 pm

2 stops7h 51m

$298

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Idaho Falls to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Idaho Falls and Portland?

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Idaho Falls is in April. Flight prices, which tend to average around $88, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in April, then you should wait until May to fly from Idaho Falls, when ticket prices are also cheap, with an average price of $97.

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Monday when prices can be found for as low as $110. 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 Wednesday, with ticket prices averaging around $255.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is in the afternoon when flights can be purchased for as low as $109. At noon is when there is more demand to fly to Portland, so prices are often more expensive at around $141 per ticket.

What is the cheapest Idaho Falls Fanning Field to Portland flight route?

Fly from Idaho Falls Fanning Field to Portland for the best Idaho Falls Fanning Field - Portland flight prices

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

You are more likely to see cheaper flights to Portland from Idaho Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $239 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Idaho Falls for as low as $105 on momondo.

What cabin class options are available on Idaho Falls Fanning Field to Portland flights?

There is only 1 cabin class available to choose from on Idaho Falls Fanning Field to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Idaho Falls to Portland flight prices changed over time?

As of January 2026, prices for Idaho Falls to Portland flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from Idaho Falls to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to Portland according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Idaho Falls to Portland (IDA to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to Portland

Best Price Found

$56

Fastest flight time

1h 36m

Direct flights

Mon, Wed and Fri

Airports in Portland

1 airport
The best one-way flight to Portland from Idaho Falls in the past 72 hours is $56. The best round-trip flight deal from Idaho Falls to Portland found on momondo in the last 72 hours is $279.
The fastest flight from Idaho Falls to Portland takes 1h 36m
Direct flights go from Idaho Falls to Portland on Monday, Wednesday and Friday. There are no airlines offering direct flights.
There is 1 airport in Portland. From Idaho Falls there are direct flights to Portland (PDX).
Search flight deals

  • How far is Idaho Falls Fanning Field to Portland by plane?

    Idaho Falls Fanning Field and Portland are 542.6 mi apart from one another. By plane, this route typically takes 1h 36m.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to Portland Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to Portland Airport are updated daily.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to Portland Airport?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to Portland Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Idaho Falls to Portland?

  • What is the most popular airline from Idaho Falls to Portland?

Best airlines flying from Idaho Falls to Portland

Compare and see reviews for airlines that fly from Idaho Falls to Portland with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $45Free CancellationRating
7.2
706 reviews
Search Allegiant Air flights
Hawaiian AirlinesPriceFrom $162Free CancellationRating
7.8
2,830 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $162Free CancellationRating
7.9
8,124 reviews
Search Delta flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
11,802 reviews
Search Alaska Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Depoe Bay
Rockaway Beach
Beaverton
Hillsboro
Hood River
McMinnville
Tigard
Longview
Gresham
Pacific City
The Dalles
Manzanita
Newberg

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to Portland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho Falls to Portland. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho Falls to Portland with flexible booking policies on momondo?

All flight searches from Idaho Falls to Portland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho Falls to Portland?

momondo provides multiple filters to help you find the best flight to Portland from Idaho Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Idaho Falls to Portland right now. Can momondo alert me if prices change?

Price alerts on flights to Portland from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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