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Cheap flights from Oregon to Idaho Falls from $89

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 5/22. 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.
Alaska Airlines Logo
5:35 pm - 6:18 pm
PDX
-
IDA
23h 43m1 stop
Alaska Airlines Logo
6:58 pm - 9:29 am
IDA
-
PDX
15h 31m1 stop
$234Alaska Airlines
Fri, Jan 23 - Sun, Jan 25
Alaska Airlines Logo
5:42 pm - 6:18 pm
MFR
-
IDA
23h 36m1 stop
Alaska Airlines Logo
6:58 pm - 5:02 pm
IDA
-
MFR
23h 04m1 stop
$245Alaska Airlines
Thu, Jan 22 - Sun, Jan 25
Alaska Airlines Logo
3:02 pm - 6:18 pm
EUG
-
IDA
26h 16m1 stop
Alaska Airlines Logo
9:00 am - 12:27 am
IDA
-
EUG
16h 27m1 stop
$254Alaska Airlines
Fri, Jan 16 - Sun, Jan 18
Alaska Airlines Logo
5:35 pm - 10:59 pm
PDX
-
IDA
4h 24m1 stop
Alaska Airlines Logo
6:58 pm - 5:59 pm
IDA
-
PDX
24h 01m1 stop
$263Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
1:38 pm - 10:59 pm
PDX
-
IDA
8h 21m1 stop
Alaska Airlines Logo
9:00 am - 9:29 am
IDA
-
PDX
25h 29m1 stop
$265Alaska Airlines
Thu, Jan 29 - Sun, Feb 1
Delta Logo
6:00 am - 12:27 pm
PDX
-
IDA
5h 27m1 stop
Delta Logo
5:25 am - 9:06 am
IDA
-
PDX
4h 41m1 stop
$277Delta
Wed, Feb 25 - Sat, Feb 28
Delta Logo
6:00 am - 12:27 pm
PDX
-
IDA
5h 27m1 stop
Delta Logo
1:10 pm - 6:16 pm
IDA
-
PDX
6h 06m1 stop
$327Delta
Wed, Feb 18 - Tue, Feb 24
United Airlines Logo
5:00 am - 1:30 pm
EUG
-
IDA
7h 30m1 stop
United Airlines Logo
2:40 pm - 9:05 pm
IDA
-
EUG
7h 25m1 stop
$349United Airlines
Wed, Feb 25 - Sat, Feb 28
United Airlines Logo
5:00 am - 9:58 am
MFR
-
IDA
27h 58m1 stop
United Airlines Logo
4:05 pm - 12:08 pm
IDA
-
MFR
21h 03m2 stops
$652United Airlines
Tue, Dec 30 - Sat, Jan 3
United Airlines Logo
6:34 pm - 9:58 am
MFR
-
IDA
14h 24m2 stops
United Airlines Logo
4:05 pm - 12:08 pm
IDA
-
MFR
21h 03m2 stops
$708United Airlines
Tue, Dec 30 - Sat, Jan 3

United Airlines flights from Oregon to Idaho Falls

Our best United Airlines deals on Oregon to Idaho Falls flight tickets
United Airlines
Feb 25
EUG5:00 amEugene
7h 30m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Feb 28
IDA2:40 pmIdaho Falls Fanning Field
7h 25m
1 stop
EUG9:05 pmEugene
$349
Find similar
United Airlines
Jan 1
EUG5:00 amEugene
7h 30m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Jan 5
IDA4:05 pmIdaho Falls Fanning Field
32h 04m
3 stops
EUG11:09 pmEugene
$594
Find similar
United Airlines
Dec 30
MFR5:00 amMedford
27h 58m
1 stop
IDA9:58 amIdaho Falls Fanning Field
Jan 3
IDA4:05 pmIdaho Falls Fanning Field
21h 03m
2 stops
MFR12:08 pmMedford
$652
Find similar

Alaska Airlines flights from Oregon to Idaho Falls

Our best Alaska Airlines deals on Oregon to Idaho Falls flight tickets
Alaska Airlines
Jan 23
PDX5:35 pmPortland
23h 43m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jan 25
IDA6:58 pmIdaho Falls Fanning Field
15h 31m
1 stop
PDX9:29 amPortland
$234
Find similar
Alaska Airlines
Jan 22
MFR5:42 pmMedford
23h 36m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jan 25
IDA6:58 pmIdaho Falls Fanning Field
23h 04m
1 stop
MFR5:02 pmMedford
$245
Find similar
Alaska Airlines
Jan 16
EUG3:02 pmEugene
26h 16m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jan 18
IDA9:00 amIdaho Falls Fanning Field
16h 27m
1 stop
EUG12:27 amEugene
$254
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 December 17, 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 1/23

5:35 pm-6:18 pm

1 stop23h 43m

Idaho Falls Fanning Field

Sun 1/25

6:58 pm-9:29 am

1 stop15h 31m

$234

MedfordIdaho Falls

MFR - IDA

MFRIDA

Medford

Thu 1/22

5:42 pm-6:18 pm

1 stop23h 36m

Idaho Falls Fanning Field

Sun 1/25

6:58 pm-5:02 pm

1 stop23h 04m

$245

EugeneIdaho Falls

EUG - IDA

EUGIDA

Eugene

Fri 1/16

3:02 pm-6:18 pm

1 stop26h 16m

Idaho Falls Fanning Field

Sun 1/18

9:00 am-12:27 am

1 stop16h 27m

$254

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Thu 1/8

5:35 pm-10:59 pm

1 stop4h 24m

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-5:59 pm

1 stop24h 01m

$263

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Thu 1/29

1:38 pm-10:59 pm

1 stop8h 21m

Idaho Falls Fanning Field

Sun 2/1

9:00 am-9:29 am

1 stop25h 29m

$265

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 2/25

6:00 am-12:27 pm

1 stop5h 27m

Idaho Falls Fanning Field

Sat 2/28

5:25 am-9:06 am

1 stop4h 41m

$277

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 2/18

6:00 am-12:27 pm

1 stop5h 27m

Idaho Falls Fanning Field

Tue 2/24

1:10 pm-6:16 pm

1 stop6h 06m

$327

EugeneIdaho Falls

EUG - IDA

EUGIDA

Eugene

Wed 2/25

5:00 am-1:30 pm

1 stop7h 30m

Idaho Falls Fanning Field

Sat 2/28

2:40 pm-9:05 pm

1 stop7h 25m

$349

MedfordIdaho Falls

MFR - IDA

MFRIDA

Medford

Tue 12/30

5:00 am-9:58 am

1 stop27h 58m

Idaho Falls Fanning Field

Sat 1/3

4:05 pm-12:08 pm

2 stops21h 03m

$652

MedfordIdaho Falls

MFR - IDA

MFRIDA

Medford

Tue 12/30

6:34 pm-9:58 am

2 stops14h 24m

Idaho Falls Fanning Field

Sat 1/3

4:05 pm-12:08 pm

2 stops21h 03m

$708

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 $221.

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 $91. 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

Best Price Found

$73

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 $73. The best round-trip flight deal from Oregon to Idaho Falls found on momondo in the last 72 hours is $92.
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 in Idaho Falls. From Oregon there are direct flights to 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
700 reviews
Search Allegiant Air flights
DeltaPriceFrom $168Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $184Free CancellationRating
7.8
2,819 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
11,472 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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