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$119+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$197
(Hawaiian Airlines)

One-way from

$119
(Alaska Airlines)

Popular in

January

Cheapest in

April

Average price

$297

Good round-trip deal

$379 or less

Good one-way deal

$200 or less
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 ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
mié. 10/86:00 amIDA - SEA
Nonstop2h 11mAlaska Airlines
mié. 10/157:55 pmSEA - IDA
Nonstop1h 43mAlaska Airlines
Deal found 9/11$197
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
vie. 11/1410:56 pmIDA - PDX
2 stops38h 00mMultiple Airlines
vie. 11/211:54 pmPDX - IDA
Nonstop1h 38mMultiple Airlines
Deal found 9/9$210
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
mié. 10/154:15 pmIDA - SEA
Nonstop1h 57mAlaska Airlines
sáb. 10/1812:55 pmSEA - IDA
Nonstop1h 43mAlaska Airlines
Deal found 9/8$217
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
mar. 10/146:00 amIDA - SEA
Nonstop2h 11mAlaska Airlines
mié. 10/2212:55 pmSEA - IDA
Nonstop1h 43mAlaska Airlines
Deal found 9/10$227
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
sáb. 12/66:05 amIDA - SEA
Nonstop2h 09mAlaska Airlines
sáb. 12/61:36 pmSEA - IDA
Nonstop1h 51mAlaska Airlines
Deal found 9/9$237
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
lun. 12/291:26 pmIDA - PDX
Nonstop1h 45mAllegiant Air
vie. 1/210:01 amPDX - IDA
Nonstop1h 35mAllegiant Air
Deal found 9/9$243
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
vie. 11/73:50 pmIDA - SEA
Nonstop2h 04mAlaska Airlines
dom. 11/99:15 pmSEA - IDA
Nonstop1h 44mAlaska Airlines
Deal found 9/11$257
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
jue. 10/210:13 pmIDA - SEA
1 stop12h 07mMultiple Airlines
dom. 10/51:22 pmSEA - IDA
1 stop22h 27mMultiple Airlines
Deal found 9/9$286
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. 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.
jue. 10/96:00 amIDA - SEA
Nonstop2h 11mHawaiian Airlines
jue. 10/1612:55 pmSEA - IDA
Nonstop1h 43mHawaiian Airlines
Deal found 9/10$288
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
vie. 12/55:04 pmIDA - SEA
Nonstop2h 09mAlaska Airlines
vie. 12/59:15 pmSEA - IDA
Nonstop1h 47mAlaska Airlines
Deal found 9/9$291
This Delta deal was found by Cheapflights users on 9/9. 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.
sáb. 12/67:06 pmIDA - SEA
1 stop5h 19mDelta
dom. 12/75:00 pmSEA - IDA
1 stop4h 24mDelta
Deal found 9/9$297
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
mié. 10/13:57 pmIDA - SEA
Nonstop1h 56mAlaska Airlines
jue. 10/27:55 pmSEA - IDA
Nonstop1h 44mAlaska Airlines
Deal found 9/10$298

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 septiembre 11, 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 FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

mar. 2/3

4:00 pm-4:59 pm

Nonstop1h 59m

Seattle/Tacoma Intl

mié. 2/25

12:40 pm-3:23 pm

Nonstop1h 43m

$197

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

mar. 2/3

6:45 pm-12:11 am

1 stop6h 26m

Seattle/Tacoma Intl

mié. 2/25

4:55 pm-10:21 pm

1 stop4h 26m

$217

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

jue. 11/6

3:50 pm-4:54 pm

Nonstop2h 04m

Seattle/Tacoma Intl

sáb. 11/8

9:15 pm-11:59 pm

Nonstop1h 44m

$227

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

mar. 10/14

6:00 am-7:11 am

Nonstop2h 11m

Seattle/Tacoma Intl

mié. 10/22

12:55 pm-3:38 pm

Nonstop1h 43m

$227

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

sáb. 12/6

5:04 pm-6:13 pm

Nonstop2h 09m

Seattle/Tacoma Intl

dom. 12/7

9:15 pm-12:02 am

Nonstop1h 47m

$227

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

sáb. 12/6

6:05 am-7:14 am

Nonstop2h 09m

Seattle/Tacoma Intl

sáb. 12/6

1:36 pm-4:27 pm

Nonstop1h 51m

$237

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

vie. 12/5

5:04 pm-6:13 pm

Nonstop2h 09m

Seattle/Tacoma Intl

dom. 12/7

9:15 pm-12:02 am

Nonstop1h 47m

$257

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

jue. 12/11

5:04 pm-6:13 pm

Nonstop2h 09m

Seattle/Tacoma Intl

lun. 12/15

1:36 pm-4:27 pm

Nonstop1h 51m

$257

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

vie. 11/7

6:05 am-7:14 am

Nonstop2h 09m

Seattle/Tacoma Intl

dom. 11/9

9:15 pm-11:59 pm

Nonstop1h 44m

$257

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

vie. 11/14

10:56 pm-11:56 am

3 stops38h 00m

Portland

vie. 11/21

1:54 pm-4:32 pm

Nonstop1h 38m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 59 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 June is currently the most expensive (average of $388). 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 septiembre 11, 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 septiembre 11, 2025.

The most flights from IDA to USWA are scheduled on a Wednesday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 septiembre 11, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Idaho Falls to Washington by reading reviews from past customers. 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
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 51 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Idaho Falls to State of Washington?

    Airlines like Hawaiian Airlines, Delta, and Alaska Airlines fly from Idaho Falls to State of Washington in about 1h 59m. The time it takes to get you to your destination can typically vary by up to 4h 27m. Airlines will cover a distance of 565 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Hawaiian Airlines. According to our data, you can fly for as low as $119. Users have also found prices from $119 and $197 on Alaska Airlines and Delta, 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 - Spokane or Idaho Falls Fanning Field - Portland.

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

    Consider Qatar Airways (97%), Alaska Airlines (89%) or Horizon Air (89%) 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 $421, our data shows the cheapest flight currently is $155. When looking at the most popular route, (Idaho Falls Fanning Field - Seattle/Tacoma Intl), you can expect to pay $197 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 June is currently the most expensive (average of $388). 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 3 airlines flying from Idaho Falls to Washington

Discover the top 3 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$373FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$119Average$328FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$195Average$396FlexibilityNo cancel feeOn-time75%

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