How many flights depart from Idaho to State of Washington on average per week?

350 flights are operational weekly from Idaho to State of Washington as of September 2026. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.

How many flights depart from Idaho to State of Washington on average per day?

The number of flights available between Idaho and State of Washington is 50 per day as of September 2026. The most frequent departure time is 10:00AM, with 46% of daily flights leaving in the afternoon.

What is the cheapest airline that flies from Idaho to Washington?

United Airlines, Southwest, and Delta are the most popular carriers operating from Idaho to Washington

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

If you’re flying from a popular airport in Idaho, such as Lewiston or Boise, and flying into State of Washington, then you can expect flight times to average 1h 30m and 1h 37m, respectively.

When did momondo last update prices for flights from Idaho to Washington?

Prices for flights from Idaho to Washington are updated daily.

How many operators does momondo search for flights from Idaho to Washington?

The number of operators available for flights from Idaho to Washington is 2 as of September 2026.

How old do you have to be to fly from Idaho to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$114 Cheap Flights from Idaho to Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 7:43 amBOI Boise Air Term. Gowen Fld-GEG Spokane

1h 13mnonstop

5:35 pm - 7:42 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

1h 07mnonstop

$197Alaska Airlines

Sat, Oct 24 - Wed, Oct 28

7:30 am - 7:43 amBOI Boise Air Term. Gowen Fld-GEG Spokane

1h 13mnonstop

6:03 am - 12:35 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

5h 32m1 stop Seattle/Tacoma Intl

$206Alaska Airlines

Sat, Oct 24 - Wed, Oct 28

6:25 am - 7:55 amLWS Lewiston Nez Perce Rgnl-SEA Seattle/Tacoma Intl

1h 30mnonstop

9:30 pm - 10:49 pmSEA Seattle/Tacoma Intl-LWS Lewiston Nez Perce Rgnl

1h 19mnonstop

$209Delta

Tue, Jan 12 - Wed, Jan 27

4:24 pm - 4:23 pmBOI Boise Air Term. Gowen Fld-PUW Pullman Moscow Regional

0h 59mnonstop

3:44 pm - 5:41 pmPUW Pullman Moscow Regional-BOI Boise Air Term. Gowen Fld

0h 57mnonstop

$212Alaska Airlines

Tue, Oct 27 - Mon, Nov 2

6:45 am - 7:39 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 54mnonstop

7:35 pm - 10:08 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 33mnonstop

$217Delta

Fri, Oct 30 - Wed, Nov 4

6:21 pm - 6:57 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 36mnonstop

9:24 pm - 11:49 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$217Alaska Airlines

Fri, Nov 13 - Sat, Nov 14

3:36 pm - 4:24 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 48mnonstop

8:59 am - 11:27 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 28mnonstop

$217Delta

Sat, Nov 7 - Sun, Nov 8

5:15 pm - 8:30 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

4h 15m1 stop Sacramento Intl

12:20 pm - 7:05 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

5h 45m1 stop Las Vegas Harry Reid Intl

$227Southwest

Sat, Oct 24 - Sat, Oct 31

3:20 pm - 10:40 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

8h 20m1 stop Denver Intl

5:15 am - 12:25 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

6h 10m1 stop Sacramento Intl

$227Southwest

Tue, Oct 27 - Tue, Nov 3

6:40 pm - 10:20 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

4h 40m1 stop Sacramento Intl

2:05 pm - 11:15 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

8h 10m1 stop Las Vegas Harry Reid Intl

$227Southwest

Wed, Nov 11 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

2:50 pm - 9:42 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 52m1 stop Las Vegas Harry Reid Intl

3:51 pm - 6:17 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 26mnonstop

$336Multiple Airlines

Fri, Oct 2 - Tue, Oct 27

2:50 pm - 9:42 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 52m1 stop Las Vegas Harry Reid Intl

7:41 pm - 10:06 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$336Multiple Airlines

Fri, Oct 2 - Tue, Oct 27

2:50 pm - 9:42 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 52m1 stop Las Vegas Harry Reid Intl

9:16 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 39m1 stop Las Vegas Harry Reid Intl

$370Frontier

Fri, Oct 2 - Sun, Oct 11

2:50 pm - 6:28 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

28h 38m1 stop Las Vegas Harry Reid Intl

9:16 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 39m1 stop Las Vegas Harry Reid Intl

$370Frontier

Thu, Oct 1 - Thu, Oct 8

9:16 am - 10:45 amLWS Lewiston Nez Perce Rgnl-SEA Seattle/Tacoma Intl

1h 29mnonstop

9:45 pm - 11:06 pmSEA Seattle/Tacoma Intl-LWS Lewiston Nez Perce Rgnl

1h 21mnonstop

$379Delta

Wed, Sep 30 - Tue, Oct 6

12:14 pm - 4:50 pmLWS Lewiston Nez Perce Rgnl-SEA Seattle/Tacoma Intl

4h 36m1 stop Salt Lake City

9:45 pm - 11:06 pmSEA Seattle/Tacoma Intl-LWS Lewiston Nez Perce Rgnl

1h 21mnonstop

$389Delta

Wed, Sep 30 - Tue, Oct 6

4:20 pm - 4:56 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 36mnonstop

7:41 pm - 10:06 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$416Alaska Airlines

Fri, Oct 2 - Tue, Oct 27

4:20 pm - 4:56 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 36mnonstop

7:41 pm - 10:06 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$417Alaska Airlines

Fri, Oct 2 - Tue, Oct 27

7:19 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

5h 40m1 stop Seattle/Tacoma Intl

5:10 am - 9:54 amGEG Spokane-BOI Boise Air Term. Gowen Fld

3h 44m1 stop Seattle/Tacoma Intl

$422Delta

Thu, Oct 1 - Thu, Oct 22

7:30 am - 7:43 amBOI Boise Air Term. Gowen Fld-GEG Spokane

1h 13mnonstop

4:39 pm - 10:20 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

4h 41m1 stop Seattle/Tacoma Intl

$422Alaska Airlines

Sat, Oct 3 - Mon, Nov 2

Cheap direct flights

Enter your travel dates to find the best prices.

7:30 am - 7:43 amBOI Boise Air Term. Gowen Fld-GEG Spokane

1h 13mnonstop

5:35 pm - 7:42 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

1h 07mnonstop

$197Alaska Airlines

Sat, Oct 24 - Wed, Oct 28

6:25 am - 7:55 amLWS Lewiston Nez Perce Rgnl-SEA Seattle/Tacoma Intl

1h 30mnonstop

9:30 pm - 10:49 pmSEA Seattle/Tacoma Intl-LWS Lewiston Nez Perce Rgnl

1h 19mnonstop

$209Delta

Tue, Jan 12 - Wed, Jan 27

4:24 pm - 4:23 pmBOI Boise Air Term. Gowen Fld-PUW Pullman Moscow Regional

0h 59mnonstop

3:44 pm - 5:41 pmPUW Pullman Moscow Regional-BOI Boise Air Term. Gowen Fld

0h 57mnonstop

$212Alaska Airlines

Tue, Oct 27 - Mon, Nov 2

10:34 am - 11:31 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 57mnonstop

7:15 am - 9:57 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 42mnonstop

$217Delta

Sat, Nov 7 - Mon, Nov 9

6:37 am - 7:25 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 48mnonstop

7:00 am - 9:30 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 30mnonstop

$217Alaska Airlines

Fri, Dec 11 - Tue, Dec 15

6:21 pm - 6:57 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 36mnonstop

9:24 pm - 11:49 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$217Alaska Airlines

Fri, Nov 13 - Sat, Nov 14

6:37 am - 7:25 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 48mnonstop

11:51 am - 2:19 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 28mnonstop

$217Alaska Airlines

Wed, Dec 2 - Sun, Dec 6

1:53 pm - 2:31 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 38mnonstop

9:24 pm - 11:49 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$217Alaska Airlines

Thu, Nov 5 - Tue, Nov 10

9:57 am - 10:38 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 41mnonstop

11:54 am - 2:20 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 26mnonstop

$217Alaska Airlines

Wed, Jan 6 - Thu, Jan 21

8:22 pm - 8:57 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 35mnonstop

9:24 pm - 11:49 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

$217Alaska Airlines

Fri, Oct 30 - Tue, Nov 3

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Delta flights from Idaho to State of Washington

Our best Delta deals on Idaho to State of Washington flight tickets

Delta

Jan 12

LWS6:25 amLewiston Nez Perce Rgnl

1h 30m

SEA7:55 amSeattle/Tacoma Intl

Jan 27

SEA9:30 pmSeattle/Tacoma Intl

1h 19m

LWS10:49 pmLewiston Nez Perce Rgnl

$209

Delta

Oct 24

BOI10:34 amBoise Air Term. Gowen Fld

1h 57m

SEA11:31 amSeattle/Tacoma Intl

Oct 25

SEA7:15 amSeattle/Tacoma Intl

1h 39m

BOI9:54 amBoise Air Term. Gowen Fld

$217

Delta

Nov 19

LWS12:24 pmLewiston Nez Perce Rgnl

4h 29m

1 stop

SEA4:53 pmSeattle/Tacoma Intl

Dec 5

SEA9:45 pmSeattle/Tacoma Intl

1h 19m

LWS11:04 pmLewiston Nez Perce Rgnl

$218

Frontier flights from Idaho to State of Washington

Our best Frontier deals on Idaho to State of Washington flight tickets

Frontier

Oct 26

BOI2:50 pmBoise Air Term. Gowen Fld

21h 09m

1 stop

SEA10:59 amSeattle/Tacoma Intl

Oct 28

SEA12:14 pmSeattle/Tacoma Intl

24h 40m

1 stop

BOI1:54 pmBoise Air Term. Gowen Fld

$236

Frontier

Nov 19

BOI2:49 pmBoise Air Term. Gowen Fld

22h 48m

1 stop

SEA12:37 pmSeattle/Tacoma Intl

Nov 24

SEA9:53 pmSeattle/Tacoma Intl

20h 07m

1 stop

BOI7:00 pmBoise Air Term. Gowen Fld

$259

Frontier

Nov 22

BOI7:55 pmBoise Air Term. Gowen Fld

17h 42m

1 stop

SEA12:37 pmSeattle/Tacoma Intl

Nov 24

SEA9:53 pmSeattle/Tacoma Intl

20h 07m

1 stop

BOI7:00 pmBoise Air Term. Gowen Fld

$293

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSpokane

BOI Boise Air Term. Gowen Fld - GEG Spokane

BOIGEG

Boise Air Term. Gowen Fld

Sat 10/24

7:30 am-7:43 am

Nonstop1h 13m

Spokane

Wed 10/28

5:35 pm-7:42 pm

Nonstop1h 07m

$197

BoiseSpokane

BOI Boise Air Term. Gowen Fld - GEG Spokane

BOIGEG

Boise Air Term. Gowen Fld

Sat 10/24

7:30 am-7:43 am

Nonstop1h 13m

Spokane

Wed 10/28

6:03 am-12:35 pm

1 stop5h 32m

$206

LewistonSeattle

LWS Lewiston Nez Perce Rgnl - SEA Seattle/Tacoma Intl

LWSSEA

Lewiston Nez Perce Rgnl

Tue 1/12

6:25 am-7:55 am

Nonstop1h 30m

Seattle/Tacoma Intl

Wed 1/27

9:30 pm-10:49 pm

Nonstop1h 19m

$209

Quickest round-trip

BoisePullman

BOI Boise Air Term. Gowen Fld - PUW Pullman Moscow Regional

BOIPUW

Boise Air Term. Gowen Fld

Tue 10/27

4:24 pm-4:23 pm

Nonstop0h 59m

Pullman Moscow Regional

Mon 11/2

3:44 pm-5:41 pm

Nonstop0h 57m

$212

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Fri 10/30

6:45 am-7:39 am

Nonstop1h 54m

Seattle/Tacoma Intl

Wed 11/4

7:35 pm-10:08 pm

Nonstop1h 33m

$217

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Fri 11/13

6:21 pm-6:57 pm

Nonstop1h 36m

Seattle/Tacoma Intl

Sat 11/14

9:24 pm-11:49 pm

Nonstop1h 25m

$217

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Sat 11/7

3:36 pm-4:24 pm

Nonstop1h 48m

Seattle/Tacoma Intl

Sun 11/8

8:59 am-11:27 am

Nonstop1h 28m

$217

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Sat 10/24

5:15 pm-8:30 pm

1 stop4h 15m

Seattle/Tacoma Intl

Sat 10/31

12:20 pm-7:05 pm

1 stop5h 45m

$227

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Tue 10/27

3:20 pm-10:40 pm

1 stop8h 20m

Seattle/Tacoma Intl

Tue 11/3

5:15 am-12:25 pm

1 stop6h 10m

$227

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Wed 11/11

6:40 pm-10:20 pm

1 stop4h 40m

Seattle/Tacoma Intl

Wed 11/18

2:05 pm-11:15 pm

1 stop8h 10m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Idaho, with most prices found around $179. If you aren’t able to travel to State of Washington during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $183.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Idaho to State of Washington is on a Friday. Travelers who choose to depart for State of Washington on a Friday will often find tickets for as low as $405. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Idaho to State of Washington for around $584.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the afternoon when flights can be purchased for as low as $464. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $541 on average. Flights to State of Washington from Idaho in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Idaho to Washington flight route?

Fly from Lewiston Nez Perce Rgnl to Seattle/Tacoma Intl for the best Idaho - Washington flight prices

How far in advance should I book a flight from Idaho to Washington?

You are more likely to see cheaper flights to State of Washington from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $224 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Idaho for as low as $156 on momondo.

What cabin class options are available on Idaho to State of Washington flights?

There are 4 cabin classes available to choose from on Idaho to State of Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to State of Washington flights?

No. A direct flight is the cheapest option for a flight between Idaho to State of Washington.

Cheap Idaho to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to State of Washington

Best Price Found	$114
Fastest flight time	0h 59m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Idaho in the past 72 hours is $114. The best round-trip flight deal from Idaho to State of Washington found on momondo in the last 72 hours is $197.

The fastest flight from Idaho to State of Washington takes 0h 59m

Direct flights go from Idaho to State of Washington every day.

There are 96 airports in State of Washington. From Idaho there are direct flights to Pullman Moscow Regional (PUW), Spokane (GEG), Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Idaho to Washington

When did momondo last update prices for flights from Idaho to Washington?
Prices for flights from Idaho to Washington are updated daily.
How many operators does momondo search for flights from Idaho to Washington?
The number of operators available for flights from Idaho to Washington is 2 as of September 2026.
How old do you have to be to fly from Idaho to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Idaho to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from Idaho to State of Washington is Boeing 737-800 Passenger/BBJ2 (winglets), representing 52.35% of all bookings. The subsequent popular models are Embraer 175 at 10.69%, Embraer 175 (Enhanced Winglets) at 10.32%, and Boeing 737-700 at 5.25%.

Best airlines flying from Idaho to State of Washington

Compare and see reviews for airlines that fly from Idaho to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $96	Free Cancellation	Rating 7.8 8,607 reviews		Search Delta flights
Alaska Airlines	PriceFrom $99	Free Cancellation	Rating 7.9 12,978 reviews		Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Washington?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to Washington for you.

Can I find flights from Idaho to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Idaho to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Idaho to Washington?

Once you have performed a search for Idaho to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Idaho to Washington right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Idaho and alert you when they change.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Washington

Flights to New Yorkfrom $57

Flights to Los Angelesfrom $44

Flights to Orlandofrom $38

Flights to Miamifrom $79

Flights to San Franciscofrom $38

Flights to Chicagofrom $58

Flights to Las Vegasfrom $45

Flights to Washington, D.C.from $46

Flights to Fort Lauderdalefrom $59

Flights to Bostonfrom $99

Flights to Atlantafrom $45

Flights to Dallasfrom $76

Cheap flights from Idaho to Washington from $114

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Washington departing on 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Idaho to Washington

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

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Big names and deals

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Delta flights from Idaho to State of Washington

Our best Delta deals on Idaho to State of Washington flight tickets

Frontier flights from Idaho to State of Washington

Our best Frontier deals on Idaho to State of Washington flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to Washington that are best for you.

See travel insights to Washington from

How to get the cheapest flight ticket from Idaho to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest Idaho to Washington flight route?

How far in advance should I book a flight from Idaho to Washington?

What cabin class options are available on Idaho to State of Washington flights?

Can stopping save me money on Idaho to State of Washington flights?

What is the cheapest airline that flies from Idaho to Washington?

How many flights depart from Idaho to State of Washington on average per day?

How many flights depart from Idaho to State of Washington on average per week?

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

Cheap Idaho to State of Washington flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Frequently asked questions about flying from Idaho to Washington

Best airlines flying from Idaho to State of Washington

Compare and see reviews for airlines that fly from Idaho to State of Washington with momondo

Why use momondo?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo

Idaho flight routes

According to popular flight searches on momondo this year

State of Washington flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year