$56+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Idaho to Washington with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Washington
Keep the following information in mind while searching for Idaho to Washington flight deals. Data was last updated June 12, 2025.
Round-trip from | $91 (Booking.com) |
|---|---|
One-way from | $56 (Kiwi.com) |
Popular in | November |
Cheapest in | September |
Average price | $217 |
Good round-trip deal | $218 or less |
Good one-way deal | $149 or less |
Find flight deals from Idaho to Washington
Cheapest flights from Idaho to WashingtonExplore 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 June 12, 2025.
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 June 12, 2025.
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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.
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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.
This Delta deal was found by Cheapflights users on 6/9. 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.
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Idaho to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Idaho FallsPortland
IDA - PDX
IDAPDX
Idaho Falls Fanning Field
Fri 6/27
4:30 pm-5:07 pm
Nonstop1h 37m
Portland
Fri 7/4
1:38 pm-4:14 pm
Nonstop1h 36m
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Wed 9/17
6:00 am-6:20 am
Nonstop1h 20m
Portland
Wed 9/24
2:30 pm-4:50 pm
Nonstop1h 20m
SpokaneSeattle
GEG - SEA
GEGSEA
Spokane
Tue 8/12
7:25 pm-8:49 pm
Nonstop1h 24m
Seattle/Tacoma Intl
Thu 8/14
11:23 am-12:41 pm
Nonstop1h 18m
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Tue 9/9
4:00 pm-6:45 pm
1 stop3h 45m
Seattle/Tacoma Intl
Wed 9/17
9:31 pm-11:59 pm
Nonstop1h 28m
SpokanePortland
GEG - PDX
GEGPDX
Spokane
Thu 9/11
12:39 pm-1:50 pm
Nonstop1h 11m
Portland
Sat 9/13
9:59 pm-11:11 pm
Nonstop1h 12m
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Tue 9/9
6:59 pm-9:00 pm
1 stop3h 01m
Seattle/Tacoma Intl
Wed 9/17
5:42 pm-9:57 pm
1 stop3h 15m
BoiseSeattle
BOI - SEA
BOISEA
Boise Air Term. Gowen Fld
Sun 8/17
4:20 pm-5:00 pm
Nonstop1h 40m
Seattle/Tacoma Intl
Sun 8/24
8:30 am-11:04 am
Nonstop1h 34m
BoiseSpokane
BOI - GEG
BOIGEG
Boise Air Term. Gowen Fld
Thu 8/21
10:37 pm-10:58 pm
Nonstop1h 21m
Spokane
Sat 8/23
9:54 am-12:03 pm
Nonstop1h 09m
SpokaneSeattle
GEG - SEA
GEGSEA
Spokane
Thu 8/28
3:08 pm-4:20 pm
Nonstop1h 12m
Seattle/Tacoma Intl
Sun 8/31
3:42 pm-4:51 pm
Nonstop1h 09m
BoisePortland
BOI - PDX
BOIPDX
Boise Air Term. Gowen Fld
Fri 8/22
5:45 pm-10:25 pm
1 stop5h 40m
Portland
Mon 8/25
5:55 pm-12:05 am
1 stop5h 10m
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.
Cheapflights Insights
Everything you need to know about your flight from Idaho to Washington
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 $391). 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 June 12, 2025.
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 June 12, 2025.
The most flights from USID to USWA are scheduled on a Thursday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta 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.
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
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.
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Alternative routes for Idaho to Washington
See prices for flight routes from nearby airports that may be better suited for you.
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 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$95 | Average$330 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$119 | Average$231 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$128 | Average$361 | FlexibilityNo cancel fee | On-time75% |