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Cheap flights from Oregon to Idaho Falls from $106

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Idaho Falls departing on 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Oregon to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
12:01 pm - 2:36 pmPDX-IDA
1h 35mnonstop
Allegiant Air Logo
3:26 pm - 4:11 pmIDA-PDX
1h 45mnonstop
$106Allegiant Air
Find Deal
Fri, Dec 12 - Mon, Dec 15
Allegiant Air Logo
12:01 pm - 2:36 pmPDX-IDA
1h 35mnonstop
Allegiant Air Logo
3:26 pm - 4:11 pmIDA-PDX
1h 45mnonstop
$111Allegiant Air
Find Deal
Fri, Dec 12 - Mon, Dec 15
Multiple Airlines Logo
5:49 pm - 11:59 pmPDX-IDA
5h 10m1 stop
Multiple Airlines Logo
3:26 pm - 4:11 pmIDA-PDX
1h 45mnonstop
$202Multiple Airlines
Find Deal
Wed, Dec 10 - Mon, Dec 15
Multiple Airlines Logo
5:49 pm - 11:59 pmPDX-IDA
5h 10m1 stop
Multiple Airlines Logo
3:26 pm - 4:11 pmIDA-PDX
1h 45mnonstop
$209Multiple Airlines
Find Deal
Wed, Dec 10 - Fri, Dec 12
Alaska Airlines Logo
5:30 pm - 11:59 pmPDX-IDA
5h 29m1 stop
Alaska Airlines Logo
6:05 am - 10:32 amIDA-PDX
5h 27m1 stop
$224Alaska Airlines
Find Deal
Sat, Nov 15 - Tue, Nov 18
Alaska Airlines Logo
5:49 pm - 4:27 pmPDX-IDA
21h 38m1 stop
Alaska Airlines Logo
5:07 pm - 1:50 pmIDA-PDX
21h 43m1 stop
$234Alaska Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
Delta Logo
2:23 pm - 10:21 pmPDX-IDA
6h 58m2 stops
Delta Logo
6:00 am - 3:33 pmIDA-PDX
10h 33m2 stops
$236Delta
Find Deal
Fri, Dec 12 - Sat, Dec 13
Delta Logo
2:23 pm - 10:21 pmPDX-IDA
6h 58m2 stops
Delta Logo
1:17 pm - 10:40 pmIDA-PDX
10h 23m2 stops
$246Delta
Find Deal
Fri, Dec 12 - Mon, Dec 15
American Airlines Logo
3:25 pm - 10:34 pmEUG-IDA
6h 09m1 stop
American Airlines Logo
7:10 am - 2:03 pmIDA-EUG
7h 53m1 stop
$284American Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
American Airlines Logo
1:28 pm - 10:34 pmEUG-IDA
8h 06m1 stop
American Airlines Logo
7:10 am - 2:03 pmIDA-EUG
7h 53m1 stop
$306American Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23

Allegiant Air flights from Oregon to Idaho Falls

Our best Allegiant Air deals on Oregon to Idaho Falls flight tickets
Allegiant Air
Dec 12
PDX12:01 pmPortland
1h 35m
IDA2:36 pmIdaho Falls Fanning Field
Dec 15
IDA3:26 pmIdaho Falls Fanning Field
1h 45m
PDX4:11 pmPortland
$106
Find similar
Allegiant Air
Dec 12
PDX12:01 pmPortland
1h 35m
IDA2:36 pmIdaho Falls Fanning Field
Dec 15
IDA3:26 pmIdaho Falls Fanning Field
1h 45m
PDX4:11 pmPortland
$111
Find similar
Allegiant Air
Dec 12
PDX12:01 pmPortland
1h 35m
IDA2:36 pmIdaho Falls Fanning Field
Dec 15
IDA3:26 pmIdaho Falls Fanning Field
1h 45m
PDX4:11 pmPortland
$119
Find similar

Alaska Airlines flights from Oregon to Idaho Falls

Our best Alaska Airlines deals on Oregon to Idaho Falls flight tickets
Alaska Airlines
Nov 15
PDX5:30 pmPortland
5h 29m
1 stop
IDA11:59 pmIdaho Falls Fanning Field
Nov 18
IDA6:05 amIdaho Falls Fanning Field
5h 27m
1 stop
PDX10:32 amPortland
$224
Find similar
Alaska Airlines
Dec 12
PDX5:49 pmPortland
21h 38m
1 stop
IDA4:27 pmIdaho Falls Fanning Field
Dec 15
IDA5:07 pmIdaho Falls Fanning Field
21h 43m
1 stop
PDX1:50 pmPortland
$234
Find similar
Alaska Airlines
Jan 14
PDX7:10 amPortland
14h 49m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
Jan 20
IDA9:00 amIdaho Falls Fanning Field
16h 09m
1 stop
PDX12:09 amPortland
$262
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oregon to Idaho Falls 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 October 28, 2025.
Use the filters below to find and compare flights from Oregon to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 12/12

12:01 pm-2:36 pm

Nonstop1h 35m

Idaho Falls Fanning Field

Mon 12/15

3:26 pm-4:11 pm

Nonstop1h 45m

$106

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 12/12

12:01 pm-2:36 pm

Nonstop1h 35m

Idaho Falls Fanning Field

Mon 12/15

3:26 pm-4:11 pm

Nonstop1h 45m

$111

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 12/10

5:49 pm-11:59 pm

1 stop5h 10m

Idaho Falls Fanning Field

Mon 12/15

3:26 pm-4:11 pm

Nonstop1h 45m

$202

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 12/10

5:49 pm-11:59 pm

1 stop5h 10m

Idaho Falls Fanning Field

Fri 12/12

3:26 pm-4:11 pm

Nonstop1h 45m

$209

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Sat 11/15

5:30 pm-11:59 pm

1 stop5h 29m

Idaho Falls Fanning Field

Tue 11/18

6:05 am-10:32 am

1 stop5h 27m

$224

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 12/12

5:49 pm-4:27 pm

1 stop21h 38m

Idaho Falls Fanning Field

Mon 12/15

5:07 pm-1:50 pm

1 stop21h 43m

$234

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 12/12

2:23 pm-10:21 pm

2 stops6h 58m

Idaho Falls Fanning Field

Sat 12/13

6:00 am-3:33 pm

2 stops10h 33m

$236

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 12/12

2:23 pm-10:21 pm

2 stops6h 58m

Idaho Falls Fanning Field

Mon 12/15

1:17 pm-10:40 pm

2 stops10h 23m

$246

EugeneIdaho Falls

EUG - IDA

EUGIDA

Eugene

Thu 11/20

3:25 pm-10:34 pm

1 stop6h 09m

Idaho Falls Fanning Field

Sun 11/23

7:10 am-2:03 pm

1 stop7h 53m

$284

EugeneIdaho Falls

EUG - IDA

EUGIDA

Eugene

Fri 11/21

1:28 pm-10:34 pm

1 stop8h 06m

Idaho Falls Fanning Field

Sun 11/23

7:10 am-2:03 pm

1 stop7h 53m

$306

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 Idaho Falls from

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

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 cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of June, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $128.

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $94. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Wednesday is $174.

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

Our most recent data shows that the best time of day to fly to Idaho Falls is at noon. Flights from Oregon to Idaho Falls during this time can be as low as $90. Try not to purchase tickets in the evening because they tend to be around $413. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

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

Can stopping save me money on Oregon to Idaho Falls flights?

No. A direct flight is the cheapest option for a flight between Oregon to Idaho Falls.

Cheap Oregon to Idaho Falls flight deals and tips

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

Fastest flight time

1h 35m

Direct flights

Tue, Thu and Sat

Airports in Idaho Falls

1 airport
The fastest flight from Oregon to Idaho Falls takes 1h 35m
Direct flights go from Oregon to Idaho Falls on Tuesday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
Search flight deals

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

    Prices for flights from Oregon to Idaho Falls Fanning Field Airport were last updated today.

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

  • How old do you have to be to fly from Oregon to Idaho Falls Fanning Field 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 Oregon to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Oregon to Idaho Falls

Compare and see reviews for airlines that fly from Oregon to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $56Free CancellationRating
7.2
695 reviews
Search Allegiant Air flights
DeltaPriceFrom $171Free CancellationRating
7.9
7,994 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $184Free CancellationRating
7.8
2,794 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
11,201 reviews
Search Alaska Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho Falls from Oregon.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oregon to Idaho Falls.

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

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from Oregon and alert you when they change.

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