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$65+ Cheap flights from Idaho Falls (IDA) to Washington

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Idaho Falls to Washington

Keep the following information in mind while searching for Idaho Falls to Washington flight deals. Data was last updated April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$107
(Kiwi.com)

One-way from

$65
(Kiwi.com)

Popular in

January

Cheapest in

April

Average price

$227

Good round-trip deal

$253 or less

Good one-way deal

$159 or less
Provider with most accurate pricing for Idaho Falls Fanning Field-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Seattle/Tacoma Intl flights.
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From Idaho Falls Fanning Field to Washington
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One-way flight from Idaho Falls Fanning Field to Washington
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Highest demand for flights based on searches. 4% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Idaho Falls Fanning Field to Washington.
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Price to beat on a one-way flight from Idaho Falls Fanning Field to Washington.
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Find flight deals from Idaho Falls to Washington

Cheapest flights from Idaho Falls to Washington
Explore the most affordable flight options available from Idaho Falls to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Fri 5/304:50 pmIDA - PDX
Nonstop1h 39mAllegiant Air
Mon 6/21:21 pmPDX - IDA
Nonstop1h 39mAllegiant Air
Deal found 4/28$107
This Hawaiian Airlines deal was found by Cheapflights users on 4/27. 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 5/286:00 amIDA - SEA
Nonstop1h 50mHawaiian Airlines
Sat 5/3112:52 pmSEA - IDA
Nonstop1h 48mHawaiian Airlines
Deal found 4/27$207
This Delta deal was found by Cheapflights users on 4/28. 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.
Tue 5/276:50 pmIDA - SEA
1 stop6h 09mDelta
Tue 6/35:30 amSEA - IDA
1 stop5h 20mDelta
Deal found 4/28$217
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/54:20 pmIDA - SEA
Nonstop1h 54mAlaska Airlines
Thu 6/57:55 pmSEA - IDA
Nonstop1h 39mAlaska Airlines
Deal found 4/28$231
This Delta deal was found by Cheapflights users on 4/28. 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.
Tue 6/106:00 amIDA - PDX
1 stop3h 55mDelta
Wed 6/115:06 pmPDX - IDA
1 stop4h 49mDelta
Deal found 4/28$257
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 5/286:00 amIDA - GEG
1 stop5h 53mHawaiian Airlines
Wed 6/43:02 pmGEG - IDA
1 stop6h 32mHawaiian Airlines
Deal found 4/28$278
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 5/276:50 pmIDA - GEG
1 stop5h 48mDelta
Tue 6/34:56 pmGEG - IDA
1 stop4h 55mDelta
Deal found 4/29$279
This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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 5/216:00 amIDA - PDX
1 stop3h 52mHawaiian Airlines
Thu 6/510:34 amPDX - IDA
1 stop4h 06mHawaiian Airlines
Deal found 4/29$335
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/266:00 amIDA - PDX
1 stop5h 53mAlaska Airlines
Mon 6/29:10 pmPDX - IDA
2 stops24h 24mAlaska Airlines
Deal found 4/28$363
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/134:35 pmIDA - GEG
1 stop6h 23mAlaska Airlines
Sat 5/173:02 pmGEG - IDA
1 stop6h 32mAlaska Airlines
Deal found 4/28$455
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 5/215:00 amIDA - SEA
2 stops20h 59mUnited Airlines
Thu 6/510:50 amSEA - IDA
1 stop11h 01mUnited Airlines
Deal found 4/29$500
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 5/305:00 amIDA - PDX
2 stops16h 47mUnited Airlines
Mon 6/21:25 pmPDX - IDA
2 stops19h 19mUnited Airlines
Deal found 4/28$501

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho Falls to Washington 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 April 29, 2025.
Use the filters below to find and compare flights from Idaho Falls to Washington that are best for you.

Fly from

Idaho Falls

Fly to

Washington

Route

Depart

Return

Price

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Fri 5/30

4:50 pm-5:29 pm

Nonstop1h 39m

Portland

Mon 6/2

1:21 pm-4:00 pm

Nonstop1h 39m

$107

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Wed 5/28

6:00 am-6:50 am

Nonstop1h 50m

Seattle/Tacoma Intl

Sat 5/31

12:52 pm-3:40 pm

Nonstop1h 48m

$207

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Tue 5/27

6:50 pm-11:59 pm

1 stop6h 09m

Seattle/Tacoma Intl

Tue 6/3

5:30 am-11:50 am

1 stop5h 20m

$217

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Thu 6/5

4:20 pm-5:14 pm

Nonstop1h 54m

Seattle/Tacoma Intl

Thu 6/5

7:55 pm-10:34 pm

Nonstop1h 39m

$231

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Tue 6/10

6:00 am-8:55 am

1 stop3h 55m

Portland

Wed 6/11

5:06 pm-10:55 pm

1 stop4h 49m

$257

Idaho FallsSpokane

IDA - GEG

IDAGEG

Idaho Falls Fanning Field

Wed 5/28

6:00 am-10:53 am

1 stop5h 53m

Spokane

Wed 6/4

3:02 pm-10:34 pm

1 stop6h 32m

$278

Idaho FallsSpokane

IDA - GEG

IDAGEG

Idaho Falls Fanning Field

Tue 5/27

6:50 pm-11:38 pm

1 stop5h 48m

Spokane

Tue 6/3

4:56 pm-10:51 pm

1 stop4h 55m

$279

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Wed 5/21

6:00 am-8:52 am

1 stop3h 52m

Portland

Thu 6/5

10:34 am-3:40 pm

1 stop4h 06m

$335

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Mon 5/26

6:00 am-10:53 am

1 stop5h 53m

Portland

Mon 6/2

9:10 pm-10:34 pm

2 stops24h 24m

$363

Idaho FallsSpokane

IDA - GEG

IDAGEG

Idaho Falls Fanning Field

Tue 5/13

4:35 pm-9:58 pm

1 stop6h 23m

Spokane

Sat 5/17

3:02 pm-10:34 pm

1 stop6h 32m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 24 results
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Best time to book a flight from Idaho Falls to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho Falls to State of Washington (average of $238). Flying from Idaho Falls to State of Washington in July is currently the most expensive (average of $405). 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 IDA to WA?

Find hourly flight availability from Idaho Falls to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Idaho Falls to State of Washington, 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 Idaho Falls to State of Washington

Explore weekly flight availability from Idaho Falls to Washington. 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 April 29, 2025.

The most flights from IDA to USWA 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 (4 on average).

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated April 29, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Idaho Falls to Washington have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

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 Idaho Falls to Washington. 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 from for flights from Idaho Falls to Washington?

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly out of when you book flights from Idaho Falls to Washington.

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

    This flight path from Idaho Falls Fanning Field to Washington was viewed by 48 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 Idaho Falls to State of Washington one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $65. Users have also found prices from $109 and $149 on Alaska Airlines and Hawaiian Airlines, respectively.

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

    The most popular route from Idaho Falls to State of Washington is Idaho Falls Fanning Field - Seattle/Tacoma Intl. You may also consider Idaho Falls Fanning Field - Portland or Idaho Falls Fanning Field - Spokane.

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

    Consider Qatar Airways (91%), Alaska Airlines (86%) or Horizon Air (86%) when booking your flight. These represent the most reliable airlines when flying from Idaho Falls to State of Washington.

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

    While on average a flight from Idaho Falls to State of Washington is generally $831, our data shows the cheapest flight currently is $108. When looking at the most popular route, (Idaho Falls Fanning Field - Seattle/Tacoma Intl), you can expect to pay $207 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho Falls to State of Washington (average of $238). Flying from Idaho Falls to State of Washington in July is currently the most expensive (average of $405). 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 Idaho Falls to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Idaho Falls to Washington

Discover the top 2 airlines that operate flights from Idaho Falls to Washington. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$425FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$192Average$450FlexibilityNo cancel feeOn-time75%

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