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Idaho Falls

$80+ Cheap flights from Washington to Idaho Falls (IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IDA
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$106
(Kiwi.com)

One-way from

$80
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$239

Good round-trip deal

$268 or less

Good one-way deal

$78 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Idaho Falls Fanning Field flights.
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From Washington to Idaho Falls Fanning Field
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One-way flight from Washington to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 10% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 2/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/142:47 pmPDX - IDA
Nonstop1h 38mAllegiant Air
Fri 4/256:15 pmIDA - PDX
Nonstop1h 40mAllegiant Air
Deal found 2/21$106
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Wed 5/141:17 pmSEA - IDA
Nonstop1h 41mAlaska Airlines
Sun 5/186:00 amIDA - SEA
Nonstop1h 50mAlaska Airlines
Deal found 2/20$208
This Trip.com deal was found by Cheapflights users on 2/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/712:54 pmSEA - IDA
Nonstop1h 40mHawaiian Airlines
Mon 4/148:00 amIDA - SEA
Nonstop1h 58mHawaiian Airlines
Deal found 2/21$215
This Delta deal was found by Cheapflights users on 2/22. 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 3/121:30 pmSEA - IDA
1 stop3h 43mDelta
Tue 3/256:55 pmIDA - SEA
1 stop6h 14mDelta
Deal found 2/22$257
This Alaska Airlines deal was found by Cheapflights users on 2/21. 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.
Wed 4/21:25 pmPDX - IDA
1 stop8h 10mAlaska Airlines
Sat 5/36:00 amIDA - PDX
1 stop3h 57mAlaska Airlines
Deal found 2/21$283
This Hawaiian Airlines deal was found by Cheapflights users on 2/21. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1410:33 amPDX - IDA
1 stop4h 01mHawaiian Airlines
Fri 4/256:00 amIDA - PDX
1 stop3h 57mHawaiian Airlines
Deal found 2/21$320
This Alaska Airlines deal was found by Cheapflights users on 2/22. 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 3/246:00 amGEG - IDA
1 stop8h 34mAlaska Airlines
Mon 3/314:11 pmIDA - GEG
1 stop6h 45mAlaska Airlines
Deal found 2/22$329
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 11/225:20 pmPDX - IDA
1 stop3h 55mDelta
Thu 11/271:05 pmIDA - PDX
1 stop6h 03mDelta
Deal found 2/20$356
This Alaska Airlines deal was found by Cheapflights users on 2/21. 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.
Sat 3/88:43 amPSC - IDA
1 stop5h 47mAlaska Airlines
Wed 3/128:00 amIDA - PSC
1 stop6h 17mAlaska Airlines
Deal found 2/21$382
This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/77:17 pmSEA - IDA
1 stop17h 11mUnited Airlines
Mon 4/144:15 pmIDA - SEA
2 stops33h 43mUnited Airlines
Deal found 2/21$478
This Hawaiian Airlines deal was found by Cheapflights users on 2/22. 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.
Wed 3/53:38 pmGEG - IDA
1 stop5h 58mHawaiian Airlines
Tue 3/114:07 pmIDA - GEG
1 stop6h 07mHawaiian Airlines
Deal found 2/22$483
This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/147:30 pmPDX - IDA
2 stops16h 58mUnited Airlines
Fri 4/254:15 pmIDA - PDX
2 stops18h 18mUnited Airlines
Deal found 2/21$514

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 February 22, 2025.

Fly from

Washington

Fly to

Idaho Falls

Route

Depart

Return

Price

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Mon 4/14

2:47 pm-5:25 pm

Nonstop1h 38m

Idaho Falls Fanning Field

Fri 4/25

6:15 pm-6:55 pm

Nonstop1h 40m

$106

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Wed 5/14

1:17 pm-3:58 pm

Nonstop1h 41m

Idaho Falls Fanning Field

Sun 5/18

6:00 am-6:50 am

Nonstop1h 50m

$208

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Mon 4/7

12:54 pm-3:34 pm

Nonstop1h 40m

Idaho Falls Fanning Field

Mon 4/14

8:00 am-8:58 am

Nonstop1h 58m

$215

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Wed 3/12

1:30 pm-6:13 pm

1 stop3h 43m

Idaho Falls Fanning Field

Tue 3/25

6:55 pm-12:09 am

1 stop6h 14m

$257

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 4/2

1:25 pm-10:35 pm

1 stop8h 10m

Idaho Falls Fanning Field

Sat 5/3

6:00 am-8:57 am

1 stop3h 57m

$283

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Mon 4/14

10:33 am-3:34 pm

1 stop4h 01m

Idaho Falls Fanning Field

Fri 4/25

6:00 am-8:57 am

1 stop3h 57m

$320

SpokaneIdaho Falls

GEG - IDA

GEGIDA

Spokane

Mon 3/24

6:00 am-3:34 pm

1 stop8h 34m

Idaho Falls Fanning Field

Mon 3/31

4:11 pm-9:56 pm

1 stop6h 45m

$329

PascoIdaho Falls

PSC - IDA

PSCIDA

Pasco Tri Cities

Sat 3/8

8:43 am-3:30 pm

1 stop5h 47m

Idaho Falls Fanning Field

Wed 3/12

8:00 am-1:17 pm

1 stop6h 17m

$382

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 4/2

7:23 am-6:13 pm

2 stops9h 50m

Idaho Falls Fanning Field

Sat 5/3

1:10 pm-8:48 pm

2 stops8h 38m

$414

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Mon 4/7

7:17 pm-1:28 pm

1 stop17h 11m

Idaho Falls Fanning Field

Mon 4/14

4:15 pm-12:58 am

2 stops33h 43m

$478

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 25 results
1
2
3

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 February 22, 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 February 22, 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 February 22, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and Hawaiian 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
9,702 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

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
9,702 reviews
Alaska Airlines
8.0
Very good
9,702 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

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
8,203 reviews
Alaska Airlines
8.0
Very good
9,702 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

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

Hawaiian Airlines
7.9
Good
2,314 reviews
Alaska Airlines
8.0
Very good
9,702 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

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
8,754 reviews
Alaska Airlines
8.0
Very good
9,702 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

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
7.3
Good
764 reviews
Alaska Airlines
8.0
Very good
9,702 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

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 Allegiant Air ($80), Alaska Airlines ($109), and Hawaiian Airlines ($149).

  • 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, Spokane - Idaho Falls Fanning Field and Portland - Idaho Falls Fanning Field.

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

    Consider Alaska Airlines (83%), Horizon Air (83%) or Hawaiian Airlines (76%) 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 $78. On average you can expect to pay $203. The most popular route, (Seattle/Tacoma Intl - Idaho Falls Fanning Field), can usually be booked for $208.

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$145Average$374FlexibilityNo cancel feeOn-time75%
DeltaCheapest$320Average$422FlexibilityNo cancel feeOn-timeN/A
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