Idaho Falls

$76+ Cheap flights from Washington to Idaho Falls (IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IDA
Jul 8 — Jul 151
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Cheap flight deals from Washington to Idaho Falls

Keep the following information in mind while searching for Washington to Idaho Falls flight deals. Data was last updated July 3, 2025.

Round-trip from

$76
(Mytrip)

Popular in

March

Cheapest in

April

Average price

$362

Good round-trip deal

$268 or less

Good one-way deal

$179 or less
From Washington to Idaho Falls Fanning Field
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Washington to Idaho Falls Fanning Field.
Price to beat on a one-way flight from Washington to Idaho Falls Fanning Field.

Find flight deals from Washington to Idaho Falls

Cheapest flights from Washington to Idaho Falls
Explore the most affordable flight options available from Washington to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/41:38 pmPDX - IDA
Nonstop1h 36mAllegiant Air
Mon 8/115:04 pmIDA - PDX
Nonstop1h 37mAllegiant Air
Deal found 7/3$76
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 8/2712:31 pmSEA - IDA
Nonstop1h 46mAlaska Airlines
Wed 9/33:57 pmIDA - SEA
Nonstop1h 56mAlaska Airlines
Deal found 7/3$177
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/41:38 pmPDX - IDA
Nonstop1h 36mMultiple Airlines
Mon 8/117:23 pmIDA - PDX
2 stops19h 52mMultiple Airlines
Deal found 7/3$181
This Delta deal was found by Cheapflights users on 7/3. 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.
Wed 8/275:30 amSEA - IDA
1 stop4h 09mDelta
Wed 9/36:52 pmIDA - SEA
1 stop4h 22mDelta
Deal found 7/3$197
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 9/17:55 pmSEA - IDA
Nonstop1h 44mHawaiian Airlines
Tue 9/26:13 amIDA - SEA
Nonstop1h 57mHawaiian Airlines
Deal found 7/3$229
This Hawaiian Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 10/75:54 pmGEG - IDA
1 stop3h 44mHawaiian Airlines
Sat 10/116:13 amIDA - GEG
1 stop4h 19mHawaiian Airlines
Deal found 7/2$238
This Delta deal was found by Cheapflights users on 7/3. 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 8/165:45 amGEG - IDA
1 stop3h 54mDelta
Sat 8/236:00 amIDA - GEG
1 stop3h 53mDelta
Deal found 7/3$239
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 9/202:32 pmPDX - IDA
1 stop7h 07mAlaska Airlines
Wed 9/246:13 amIDA - PDX
1 stop7h 14mAlaska Airlines
Deal found 7/3$282
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 9/69:25 amGEG - IDA
1 stop4h 55mAlaska Airlines
Sat 9/136:13 amIDA - GEG
1 stop5h 47mAlaska Airlines
Deal found 7/1$287
This Delta deal was found by Cheapflights users on 7/2. 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.
Sun 8/245:18 pmPSC - IDA
1 stop4h 09mDelta
Tue 8/266:00 amIDA - PSC
1 stop3h 43mDelta
Deal found 7/2$288
This Delta deal was found by Cheapflights users on 7/3. 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 9/201:26 pmPDX - IDA
2 stops7h 59mDelta
Wed 9/246:51 pmIDA - PDX
2 stops6h 01mDelta
Deal found 7/3$294
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 10/83:52 pmPSC - IDA
1 stop5h 46mAlaska Airlines
Fri 10/104:15 pmIDA - PSC
1 stop5h 59mAlaska Airlines
Deal found 7/3$298

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Washington to Idaho Falls that are best for you.

Fly from

Washington

Fly to

Idaho Falls

Route

Depart

Return

Price

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Mon 8/4

1:38 pm-4:14 pm

Nonstop1h 36m

Idaho Falls Fanning Field

Mon 8/11

5:04 pm-5:41 pm

Nonstop1h 37m

$76

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Wed 8/27

7:55 pm-10:39 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Wed 9/3

3:57 pm-4:53 pm

Nonstop1h 56m

$177

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Mon 8/4

1:38 pm-4:14 pm

Nonstop1h 36m

Idaho Falls Fanning Field

Mon 8/11

7:23 pm-2:15 pm

2 stops19h 52m

$181

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Wed 8/27

5:30 am-10:39 am

1 stop4h 09m

Idaho Falls Fanning Field

Wed 9/3

6:52 pm-10:14 pm

1 stop4h 22m

$197

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Fri 7/25

12:47 pm-3:22 pm

Nonstop1h 35m

Idaho Falls Fanning Field

Fri 8/15

6:15 am-7:11 am

Nonstop1h 56m

$228

SpokaneIdaho Falls

GEG - IDA

GEGIDA

Spokane

Tue 10/7

5:54 pm-10:38 pm

1 stop3h 44m

Idaho Falls Fanning Field

Sat 10/11

6:13 am-9:32 am

1 stop4h 19m

$238

SpokaneIdaho Falls

GEG - IDA

GEGIDA

Spokane

Sat 8/16

5:45 am-10:39 am

1 stop3h 54m

Idaho Falls Fanning Field

Sat 8/23

6:00 am-8:53 am

1 stop3h 53m

$239

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Sat 9/20

2:32 pm-10:39 pm

1 stop7h 07m

Idaho Falls Fanning Field

Wed 9/24

6:13 am-12:27 pm

1 stop7h 14m

$282

SpokaneIdaho Falls

GEG - IDA

GEGIDA

Spokane

Sat 9/6

9:25 am-3:20 pm

1 stop4h 55m

Idaho Falls Fanning Field

Sat 9/13

6:13 am-11:00 am

1 stop5h 47m

$287

PascoIdaho Falls

PSC - IDA

PSCIDA

Pasco Tri Cities

Sun 8/24

5:18 pm-10:27 pm

1 stop4h 09m

Idaho Falls Fanning Field

Tue 8/26

6:00 am-8:43 am

1 stop3h 43m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 35 results
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Best time to book a flight from Washington to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Washington 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 Washington to Idaho Falls

What is the cheapest month to book a flight from State of Washington to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from State of Washington to Idaho Falls (average of $380). Flying from State of Washington to Idaho Falls in December is currently the most expensive (average of $578). 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 WA to IDA?

Find hourly flight availability from Washington to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from State of Washington to Idaho Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to Idaho Falls

Explore weekly flight availability from Washington to Idaho Falls. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from USWA to IDA are scheduled on a Monday (6 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Washington to Idaho Falls, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Washington to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Idaho Falls from Washington?

    Most people fly into Idaho Falls Fanning Field (IDA) if they book a flight to Idaho Falls from Washington. Fanning Field is conveniently located just 3.8 mi from Idaho Falls’s city center.

  • How popular is this State of Washington to Idaho Falls flight route?

  • What are the cheapest airlines to fly from State of Washington to Idaho Falls one-way?

    The cheapest airlines for a one-way flight from State of Washington to Idaho Falls are Hawaiian Airlines ($109), Delta ($119), and Allegiant Air ($133).

  • What are the most popular routes from State of Washington to Idaho Falls?

  • What are the most reliable airlines from State of Washington to Idaho Falls?

    Consider Finnair (78%), Alaska Airlines (77%) or Horizon Air (77%) when booking your flight. These represent the most reliable airlines when flying from State of Washington to Idaho Falls.

  • What are the cheapest flights from State of Washington to Idaho Falls?

    The cheapest flight price from State of Washington to Idaho Falls is $119. On average you can expect to pay $376. The most popular route, (Seattle/Tacoma Intl - Idaho Falls Fanning Field), can usually be booked for $177.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Idaho Falls 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 State of Washington to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to Idaho Falls (average of $380). Flying from State of Washington to Idaho Falls in December is currently the most expensive (average of $578). 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 Washington?

Book flights to Washington if you plan to visit one of these locations
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Alternative routes for Washington to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Washington to Idaho Falls

Discover the top 2 airlines that operate flights from Washington to Idaho Falls. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$187Average$357FlexibilityNo cancel feeOn-time75%
DeltaCheapest$298Average$450FlexibilityNo cancel feeOn-timeN/A

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