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Idaho Falls

$80+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IDA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Washington to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$80
(Mytrip)

Good round-trip deal

$223 or less

Good one-way deal

$119 or less
From Washington to Idaho Falls Fanning Field
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Price to beat on a round-trip flight from Washington to Idaho Falls Fanning Field.
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Price to beat on a one-way flight from Washington to Idaho Falls Fanning Field.
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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 January 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/72:59 pmPDX - IDA
Nonstop1h 38mAllegiant Air
Mon 3/246:27 pmIDA - PDX
Nonstop1h 40mAllegiant Air
Deal found 1/19$90
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 3/107:55 pmSEA - IDA
Nonstop1h 41mAlaska Airlines
Tue 3/118:00 amIDA - SEA
Nonstop2h 05mAlaska Airlines
Deal found 1/19$167
This eDestinos deal was found by Cheapflights users on 1/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/142:59 pmPDX - IDA
Nonstop1h 38mMultiple Airlines
Mon 3/173:28 pmIDA - PDX
2 stops34h 09mMultiple Airlines
Deal found 1/19$172
This Delta deal was found by Cheapflights users on 1/20. 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 3/125:30 amSEA - IDA
1 stop5h 48mDelta
Tue 3/186:55 pmIDA - SEA
1 stop6h 14mDelta
Deal found 1/20$177
This Delta deal was found by Cheapflights users on 1/21. 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 2/195:20 pmPDX - IDA
1 stop4h 24mDelta
Wed 2/266:00 amIDA - PDX
1 stop4h 16mDelta
Deal found 1/21$231
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Fri 5/231:45 pmPDX - IDA
1 stop7h 49mAlaska Airlines
Sun 5/256:00 amIDA - PDX
1 stop4h 48mAlaska Airlines
Deal found 1/21$342
This Delta deal was found by Cheapflights users on 1/19. 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.
Mon 6/165:00 pmGEG - IDA
1 stop4h 15mDelta
Fri 6/206:10 amIDA - GEG
1 stop3h 59mDelta
Deal found 1/19$369
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 2/45:48 pmGEG - IDA
1 stop3h 45mAlaska Airlines
Sat 2/84:04 pmIDA - GEG
1 stop6h 05mAlaska Airlines
Deal found 1/20$382
This Delta deal was found by Cheapflights users on 1/21. 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 2/512:37 pmPSC - IDA
1 stop4h 41mDelta
Sun 2/96:00 amIDA - PSC
1 stop6h 55mDelta
Deal found 1/21$383
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1011:40 amSEA - IDA
1 stop9h 37mAmerican Airlines
Wed 2/125:30 amIDA - SEA
1 stop6h 19mAmerican Airlines
Deal found 1/21$387
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 2/41:54 pmPSC - IDA
1 stop24h 33mAlaska Airlines
Sat 2/84:04 pmIDA - PSC
1 stop5h 55mAlaska Airlines
Deal found 1/19$463
This United deal was found by Cheapflights users on 1/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/223:16 pmSEA - IDA
1 stop17h 24mUnited Airlines
Tue 2/255:44 pmIDA - SEA
2 stops18h 28mUnited Airlines
Deal found 1/20$480

Find flights from Washington to Idaho Falls within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 2/28

10:58 am-1:36 pm

Nonstop1h 38m

Idaho Falls Fanning Field

Mon 3/3

2:26 pm-3:06 pm

Nonstop1h 40m

$80

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Mon 3/10

7:55 pm-10:36 pm

Nonstop1h 41m

Idaho Falls Fanning Field

Tue 3/11

8:00 am-9:05 am

Nonstop2h 05m

$167

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 3/14

2:59 pm-5:37 pm

Nonstop1h 38m

Idaho Falls Fanning Field

Mon 3/17

3:28 pm-12:37 am

2 stops34h 09m

$172

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Wed 3/12

5:30 am-12:18 pm

1 stop5h 48m

Idaho Falls Fanning Field

Tue 3/18

6:55 pm-12:09 am

1 stop6h 14m

$177

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 2/19

5:20 pm-10:44 pm

1 stop4h 24m

Idaho Falls Fanning Field

Wed 2/26

6:00 am-9:16 am

1 stop4h 16m

$231

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 5/23

1:45 pm-10:34 pm

1 stop7h 49m

Idaho Falls Fanning Field

Sun 5/25

6:00 am-8:47 am

1 stop3h 47m

$342

SpokaneIdaho Falls

GEG - IDA

GEGIDA

Spokane

Mon 6/16

5:00 pm-10:15 pm

1 stop4h 15m

Idaho Falls Fanning Field

Fri 6/20

6:10 am-9:09 am

1 stop3h 59m

$369

SpokaneIdaho Falls

GEG - IDA

GEGIDA

Spokane

Tue 2/4

5:48 pm-10:33 pm

1 stop3h 45m

Idaho Falls Fanning Field

Sat 2/8

4:04 pm-9:09 pm

1 stop6h 05m

$382

PascoIdaho Falls

PSC - IDA

PSCIDA

Pasco Tri Cities

Wed 2/5

12:37 pm-6:18 pm

1 stop4h 41m

Idaho Falls Fanning Field

Sun 2/9

6:00 am-11:55 am

1 stop6h 55m

$383

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Mon 2/10

11:40 am-10:17 pm

1 stop9h 37m

Idaho Falls Fanning Field

Wed 2/12

5:30 am-10:49 am

1 stop6h 19m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 23 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.

Travel insights for flights from Washington to Idaho Falls

Get recent, data-driven insights about flights from Washington to Idaho Falls including ideal travel times, pricing trends, and more.

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 July is currently the most expensive (average of $628). 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 January 21, 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 January 21, 2025.

The most flights from USWA to IDA are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 January 21, 2025.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and United Airlines from Washington to Idaho Falls to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,706 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,521 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,984 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Allegiant Air
7.4
Good
801 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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?

    The Washington to Idaho Falls Fanning Field flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 Alaska Airlines ($89), Delta ($99), and United Airlines ($243).

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

    The most popular flight routes from State of Washington to Idaho Falls are Seattle/Tacoma Intl - Idaho Falls Fanning Field, Portland - Idaho Falls Fanning Field and Pasco Tri Cities - Idaho Falls Fanning Field.

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

    Consider Alaska Airlines (82%), Horizon Air (82%) or Qatar Airways (82%) 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 $98. On average you can expect to pay $233. 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 July is currently the most expensive (average of $628). 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.

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Alternative routes for Washington to Idaho Falls

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$145Average$433FlexibilityNo cancel feeOn-time75%
DeltaCheapest$211Average$450FlexibilityNo cancel feeOn-timeN/A
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