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Cheap flights from Oregon to Idaho Falls from $120

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Idaho Falls departing on 2/5. 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 Oregon to Idaho Falls

Cheap round-trip flights

Allegiant Air Logo
12:01 pm - 2:36 pmPDX-IDA
1h 35mnonstop
Allegiant Air Logo
1:26 pm - 2:11 pmIDA-PDX
1h 45mnonstop
$123Allegiant Air
Find Deal
Fri, Dec 12 - Mon, Jan 5
Logo
7:42 pm - 4:14 pmPDX-IDA
19h 32m1 stop
Logo
8:52 pm - 7:36 pmIDA-PDX
23h 44m1 stop
$228
Find Deal
Thu, Oct 30 - Mon, Nov 3
Logo
7:28 pm - 11:59 amPDX-IDA
15h 31m1 stop
Logo
1:26 pm - 2:11 pmIDA-PDX
1h 45mnonstop
$231
Find Deal
Fri, Dec 12 - Mon, Jan 5
Logo
7:22 pm - 4:05 pmPDX-IDA
19h 43m1 stop
Logo
9:39 pm - 11:11 amIDA-PDX
14h 32m1 stop
$235
Find Deal
Thu, Sep 4 - Mon, Sep 22
Delta Logo
5:35 am - 10:39 amPDX-IDA
4h 04m1 stop
Delta Logo
6:51 pm - 11:52 pmIDA-PDX
6h 01m1 stop
$239Delta
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Wed, Sep 3 - Tue, Sep 23
Delta Logo
5:35 am - 10:39 amPDX-IDA
4h 04m1 stop
Delta Logo
6:51 pm - 11:52 pmIDA-PDX
6h 01m2 stops
$286Delta
Find Deal
Wed, Sep 3 - Tue, Sep 23
Alaska Airlines Logo
1:25 pm - 10:38 pmPDX-IDA
8h 13m1 stop
Alaska Airlines Logo
4:15 pm - 6:20 amIDA-PDX
15h 05m1 stop
$302Alaska Airlines
Find Deal
Wed, Oct 15 - Mon, Oct 20
Alaska Airlines Logo
1:26 pm - 11:59 pmMFR-IDA
9h 33m1 stop
Alaska Airlines Logo
3:50 pm - 12:12 amIDA-MFR
9h 22m1 stop
$317Alaska Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
United Airlines Logo
5:00 am - 9:47 amMFR-IDA
27h 47m1 stop
United Airlines Logo
4:00 pm - 9:04 pmIDA-MFR
6h 04m1 stop
$457United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
2:12 pm - 9:47 amMFR-IDA
18h 35m2 stops
United Airlines Logo
4:00 pm - 9:04 pmIDA-MFR
6h 04m1 stop
$462United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20

Alaska Airlines flights from Oregon to Idaho Falls

Our best Alaska Airlines deals on Oregon to Idaho Falls flight tickets
Alaska Airlines
Oct 15
PDX1:25 pmPortland
8h 13m
1 stop
IDA10:38 pmIdaho Falls Fanning Field
Oct 20
IDA4:15 pmIdaho Falls Fanning Field
15h 05m
1 stop
PDX6:20 amPortland
$302
Find similar
Alaska Airlines
Nov 7
MFR1:26 pmMedford
9h 33m
1 stop
IDA11:59 pmIdaho Falls Fanning Field
Nov 12
IDA3:50 pmIdaho Falls Fanning Field
9h 22m
1 stop
MFR12:12 amMedford
$317
Find similar
Alaska Airlines
Oct 30
PDX10:52 amPortland
27h 21m
2 stops
IDA3:13 pmIdaho Falls Fanning Field
Nov 3
IDA3:50 pmIdaho Falls Fanning Field
19h 00m
2 stops
PDX9:50 amPortland
$319
Find similar

United Airlines flights from Oregon to Idaho Falls

Our best United Airlines deals on Oregon to Idaho Falls flight tickets
United Airlines
Sep 13
MFR5:00 amMedford
27h 47m
1 stop
IDA9:47 amIdaho Falls Fanning Field
Sep 20
IDA4:00 pmIdaho Falls Fanning Field
6h 04m
1 stop
MFR9:04 pmMedford
$457
Find similar
United Airlines
Sep 13
MFR2:12 pmMedford
18h 35m
2 stops
IDA9:47 amIdaho Falls Fanning Field
Sep 20
IDA4:00 pmIdaho Falls Fanning Field
6h 04m
1 stop
MFR9:04 pmMedford
$462
Find similar
United Airlines
Aug 27
PDX5:00 amPortland
9h 29m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
Sep 3
IDA2:35 pmIdaho Falls Fanning Field
9h 07m
1 stop
PDX10:42 pmPortland
$510
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 August 14, 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 1/5

1:26 pm-2:11 pm

Nonstop1h 45m

$123

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Thu 10/30

7:42 pm-4:14 pm

1 stop19h 32m

Idaho Falls Fanning Field

Mon 11/3

8:52 pm-7:36 pm

1 stop23h 44m

$228

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 12/12

7:28 pm-11:59 am

1 stop15h 31m

Idaho Falls Fanning Field

Mon 1/5

1:26 pm-2:11 pm

Nonstop1h 45m

$231

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Thu 9/4

7:22 pm-4:05 pm

1 stop19h 43m

Idaho Falls Fanning Field

Mon 9/22

9:39 pm-11:11 am

1 stop14h 32m

$235

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 9/3

5:35 am-10:39 am

1 stop4h 04m

Idaho Falls Fanning Field

Tue 9/23

6:51 pm-11:52 pm

1 stop6h 01m

$239

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 9/3

5:35 am-10:39 am

1 stop4h 04m

Idaho Falls Fanning Field

Tue 9/23

6:51 pm-11:52 pm

2 stops6h 01m

$286

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 10/15

1:25 pm-10:38 pm

1 stop8h 13m

Idaho Falls Fanning Field

Mon 10/20

4:15 pm-6:20 am

1 stop15h 05m

$302

MedfordIdaho Falls

MFR - IDA

MFRIDA

Medford

Fri 11/7

1:26 pm-11:59 pm

1 stop9h 33m

Idaho Falls Fanning Field

Wed 11/12

3:50 pm-12:12 am

1 stop9h 22m

$317

MedfordIdaho Falls

MFR - IDA

MFRIDA

Medford

Sat 9/13

5:00 am-9:47 am

1 stop27h 47m

Idaho Falls Fanning Field

Sat 9/20

4:00 pm-9:04 pm

1 stop6h 04m

$457

MedfordIdaho Falls

MFR - IDA

MFRIDA

Medford

Sat 9/13

2:12 pm-9:47 am

2 stops18h 35m

Idaho Falls Fanning Field

Sat 9/20

4:00 pm-9:04 pm

1 stop6h 04m

$462

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 $126.

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

Our data shows that Monday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $89. 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 $304.

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 are 1 cabin classes 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

Best Price Found

$120

Fastest flight time

1h 35m

Direct flights

Sat

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Oregon in the past 72 hours is $120. The best round-trip flight deal from Oregon to Idaho Falls found on momondo in the last 72 hours is $123.
The fastest flight from Oregon to Idaho Falls takes 1h 35m
Direct flights go from Oregon to Idaho Falls on Saturday. The only airline offering direct flights is Allegiant Air.
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
701 reviews
Search Allegiant Air flights
DeltaPriceFrom $171Free CancellationRating
8.0
7,980 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $184Free CancellationRating
7.8
2,656 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $265Free CancellationRating
8.0
10,000 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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