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$60+ Cheap flights from Idaho 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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Idaho to Washington

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Washington (USWA). 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 November 20, 2024.

Find flight deals from Idaho to Washington

Cheapest flights from Idaho to Washington
Explore the most affordable flight options available from Idaho to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Delta deal was found by Cheapflights users on 11/20. 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.
Mon 12/235:05 amGEG - PDX
1 stop3h 33mDelta
Fri 12/277:24 pmPDX - GEG
1 stop4h 42mDelta
Deal found 11/20$143
This Delta deal was found by Cheapflights users on 11/19. 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.
Tue 12/105:36 amBOI - SEA
Nonstop2h 04mDelta
Fri 12/139:35 pmSEA - BOI
Nonstop1h 31mDelta
Deal found 11/19$157
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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 12/106:10 amGEG - SEA
Nonstop1h 19mAlaska Airlines
Wed 12/117:49 pmSEA - GEG
Nonstop1h 05mAlaska Airlines
Deal found 11/18$157
This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/103:45 pmBOI - SEA
1 stop24h 08mSpirit Airlines
Fri 12/139:21 pmSEA - BOI
1 stop16h 29mSpirit Airlines
Deal found 11/19$158
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/112:47 pmBOI - SEA
Nonstop1h 45mAlaska Airlines
Tue 12/1710:50 pmSEA - BOI
1 stop8h 22mAlaska Airlines
Deal found 11/19$159
This Delta deal was found by Cheapflights users on 11/20. 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.
Thu 12/126:15 amGEG - SEA
Nonstop1h 33mDelta
Thu 12/129:50 pmSEA - GEG
Nonstop1h 16mDelta
Deal found 11/20$167
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 12/179:59 pmBOI - GEG
Nonstop1h 11mAlaska Airlines
Wed 12/186:00 amGEG - BOI
Nonstop1h 12mAlaska Airlines
Deal found 11/19$177
This Alaska Airlines deal was found by Cheapflights users on 11/20. 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 12/187:00 amBOI - PDX
Nonstop1h 30mAlaska Airlines
Mon 1/612:00 pmPDX - BOI
Nonstop1h 10mAlaska Airlines
Deal found 11/20$188
This FlightHub deal was found by Cheapflights users on 11/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1911:57 amBOI - PDX
1 stop7h 25mSpirit Airlines
Thu 12/265:00 amPDX - BOI
1 stop5h 02mSpirit Airlines
Deal found 11/19$192
This Delta deal was found by Cheapflights users on 11/19. 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.
Tue 12/177:57 pmBOI - PDX
1 stop5h 31mDelta
Tue 12/245:10 pmPDX - BOI
1 stop3h 59mDelta
Deal found 11/19$196
This Delta deal was found by Cheapflights users on 11/19. 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.
Tue 12/175:10 pmBOI - GEG
1 stop6h 55mDelta
Wed 12/187:20 pmGEG - BOI
1 stop3h 46mDelta
Deal found 11/19$196
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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 12/1810:30 amGEG - PDX
Nonstop1h 25mAlaska Airlines
Wed 12/259:59 pmPDX - GEG
Nonstop1h 09mAlaska Airlines
Deal found 11/18$198

Find flights from Idaho to Washington within your budget

Customize your flight search to find flights from Idaho 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SpokanePortland

GEG - PDX

GEGPDX

Spokane

Tue 1/21

5:48 pm-9:53 pm

1 stop4h 05m

Portland

Tue 1/28

8:05 am-12:43 pm

1 stop4h 38m

$142

BoiseSpokane

BOI - GEG

BOIGEG

Boise Air Term. Gowen Fld

Fri 1/17

7:09 pm-12:03 am

1 stop5h 54m

Spokane

Sun 1/19

1:25 pm-6:29 pm

1 stop4h 04m

$143

SpokanePortland

GEG - PDX

GEGPDX

Spokane

Mon 12/23

5:05 am-8:38 am

1 stop3h 33m

Portland

Fri 12/27

7:24 pm-12:06 am

1 stop4h 42m

$143

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Tue 12/10

6:10 am-7:29 am

Nonstop1h 19m

Seattle/Tacoma Intl

Wed 12/11

7:49 pm-8:54 pm

Nonstop1h 05m

$157

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 12/10

5:36 am-6:40 am

Nonstop2h 04m

Seattle/Tacoma Intl

Fri 12/13

9:35 pm-12:06 am

Nonstop1h 31m

$157

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 12/10

3:45 pm-2:53 pm

1 stop24h 08m

Seattle/Tacoma Intl

Fri 12/13

9:21 pm-2:50 pm

1 stop16h 29m

$158

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 12/11

2:47 pm-3:32 pm

Nonstop1h 45m

Seattle/Tacoma Intl

Tue 12/17

10:50 pm-8:12 am

1 stop8h 22m

$159

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Thu 12/12

6:15 am-7:48 am

Nonstop1h 33m

Seattle/Tacoma Intl

Thu 12/12

9:50 pm-11:06 pm

Nonstop1h 16m

$167

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 1/3

6:00 am-6:46 am

Nonstop1h 46m

Seattle/Tacoma Intl

Sun 1/5

9:21 pm-11:02 am

1 stop12h 41m

$169

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 1/18

8:00 am-9:10 am

Nonstop2h 10m

Seattle/Tacoma Intl

Tue 1/21

12:51 pm-3:27 pm

Nonstop1h 36m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Washington

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

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to State of Washington (average of $238). Flying from Idaho to State of Washington in July is currently the most expensive (average of $411). 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 ID to WA?

Find hourly flight availability from Idaho 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 November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to State of Washington as you normally would.

Weekly flight availability from Idaho to State of Washington

Explore weekly flight availability from Idaho 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 November 20, 2024.

The most flights from USID to USWA are scheduled on a Wednesday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 November 20, 2024.
Get a feel of what it's like to fly with United Airlines, Delta and Alaska Airlines from Idaho to Washington by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Allegiant Air
7.4
Good
850 reviews
Southwest
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Idaho to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The Idaho to Washington flight path was viewed by 85 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 to State of Washington one-way?

    The cheapest airlines for a one-way flight from Idaho to State of Washington are Spirit Airlines ($60), Alaska Airlines ($69), and Delta ($72).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho to State of Washington (average of $238). Flying from Idaho to State of Washington in July is currently the most expensive (average of $411). 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 to Washington

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Top 3 airlines flying from Idaho to Washington

Discover the top 3 airlines that operate flights from Idaho 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$90Average$168FlexibilityNo cancel feeOn-time65%
DeltaCheapest$117Average$387FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$120Average$369FlexibilityNo cancel feeOn-time75%
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