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$60+ Cheap flights from Idaho to Seattle (SEA)

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Idaho to Seattle

Keep the following information in mind while searching for Idaho to Seattle flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$107
(Cheapflightsfares)

One-way from

$60
(Delta)

Popular in

December

Cheapest in

February

Average price

$207

Good round-trip deal

$254 or less

Good one-way deal

$167 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Seattle/Tacoma Intl flights.
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From Idaho to Seattle/Tacoma Intl
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One-way flight from Idaho to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 7% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Idaho to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Idaho to Seattle/Tacoma Intl.
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Find flight deals from Idaho to Seattle

Cheapest flights from Idaho to Seattle
Explore the most affordable flight options available from Idaho to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:15 amGEG - SEA
Nonstop1h 27mAlaska Airlines
Mon 12/158:17 pmSEA - GEG
Nonstop1h 11mAlaska Airlines
Deal found 10/29$107
This Delta deal was found by Cheapflights users on 10/29. 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.
Sat 12/133:35 pmGEG - SEA
Nonstop1h 25mDelta
Sun 1/48:00 pmSEA - GEG
Nonstop1h 15mDelta
Deal found 10/29$108
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 12/48:47 pmGEG - SEA
Nonstop1h 15mAlaska Airlines
Thu 12/411:15 pmSEA - GEG
Nonstop1h 09mAlaska Airlines
Deal found 10/30$113
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 11/194:45 pmBOI - SEA
Nonstop1h 40mDelta
Sat 11/224:20 pmSEA - BOI
Nonstop1h 34mDelta
Deal found 10/28$117
This Delta deal was found by Cheapflights users on 10/29. 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.
Sat 12/201:12 pmGEG - SEA
Nonstop1h 26mDelta
Wed 12/319:25 amSEA - GEG
Nonstop1h 16mDelta
Deal found 10/29$117
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/61:25 pmBOI - SEA
Nonstop1h 40mHawaiian Airlines
Sun 12/78:30 pmSEA - BOI
Nonstop1h 26mHawaiian Airlines
Deal found 10/30$119
This Delta deal was found by Cheapflights users on 10/29. 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.
Sun 11/307:05 amGEG - SEA
Nonstop1h 35mDelta
Thu 12/47:10 amSEA - GEG
Nonstop1h 23mDelta
Deal found 10/29$119
This Trip.com deal was found by Cheapflights users on 10/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:03 amBOI - SEA
Nonstop1h 57mAlaska Airlines
Sun 12/710:20 amSEA - BOI
Nonstop1h 25mAlaska Airlines
Deal found 10/29$121
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:08 amBOI - SEA
Nonstop1h 52mAlaska Airlines
Sun 12/289:15 pmSEA - BOI
Nonstop1h 22mAlaska Airlines
Deal found 10/27$126
This Delta deal was found by Cheapflights users on 10/29. 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.
Sat 12/275:40 amBOI - SEA
Nonstop1h 57mDelta
Sun 1/47:30 pmSEA - BOI
Nonstop1h 31mDelta
Deal found 10/29$127
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Wed 11/194:57 pmBOI - SEA
Nonstop1h 43mAlaska Airlines
Sun 11/238:11 amSEA - BOI
Nonstop1h 34mAlaska Airlines
Deal found 10/30$130
This CheapTickets deal was found by Cheapflights users on 10/30. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:03 amBOI - SEA
Nonstop1h 57mHawaiian Airlines
Sun 12/217:59 pmSEA - BOI
Nonstop1h 27mHawaiian Airlines
Deal found 10/30$131

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Seattle 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 October 30, 2025.
Use the filters below to find and compare flights from Idaho to Seattle that are best for you.

Fly from

Idaho

Fly to

Seattle

Route

Depart

Return

Price

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Wed 12/10

5:51 am-7:15 am

Nonstop1h 24m

Seattle/Tacoma Intl

Sat 12/13

8:17 pm-9:28 pm

Nonstop1h 11m

$108

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Wed 11/26

7:38 pm-9:08 pm

Nonstop1h 30m

Seattle/Tacoma Intl

Wed 12/3

7:45 pm-8:57 pm

Nonstop1h 12m

$108

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 11/19

4:57 pm-5:40 pm

Nonstop1h 43m

Seattle/Tacoma Intl

Sat 11/22

7:59 pm-10:24 pm

Nonstop1h 25m

$117

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 11/25

7:30 am-8:28 am

Nonstop1h 58m

Seattle/Tacoma Intl

Tue 12/2

4:20 pm-6:52 pm

Nonstop1h 32m

$117

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 12/9

12:19 pm-12:59 pm

Nonstop1h 40m

Seattle/Tacoma Intl

Tue 12/16

12:53 pm-3:26 pm

Nonstop1h 33m

$117

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Sat 1/17

12:10 pm-1:28 pm

Nonstop1h 18m

Seattle/Tacoma Intl

Tue 1/20

5:55 pm-7:03 pm

Nonstop1h 08m

$117

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Wed 12/10

7:35 pm-9:04 pm

Nonstop1h 29m

Seattle/Tacoma Intl

Fri 12/12

10:59 pm-12:11 am

Nonstop1h 12m

$119

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Sun 11/30

7:05 am-8:40 am

Nonstop1h 35m

Seattle/Tacoma Intl

Thu 12/4

7:10 am-8:33 am

Nonstop1h 23m

$119

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Tue 12/16

5:05 am-6:28 am

Nonstop1h 23m

Seattle/Tacoma Intl

Wed 12/17

9:25 am-10:39 am

Nonstop1h 14m

$119

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Tue 12/9

1:10 pm-2:36 pm

Nonstop1h 26m

Seattle/Tacoma Intl

Thu 12/11

7:10 am-8:33 am

Nonstop1h 23m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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

Have a flexible travel schedule? Discover the best time to fly to Seattle 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.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Seattle

What is the cheapest month to book a flight from Idaho to Seattle?

Currently, February is the cheapest month in which you can book a flight from Idaho to Seattle (average of $77). Flying from Idaho to Seattle in March is currently the most expensive (average of $137). 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 SEA?

Find hourly flight availability from Idaho to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s optimal to fly from Idaho to Seattle in the evening. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Idaho to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Seattle. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Idaho to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Seattle. 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 into for flights to Seattle from Idaho?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Seattle from Idaho.

  • How popular is this Idaho to Seattle flight route?

    This flight path from Idaho to Seattle/Tacoma Intl was viewed by 81 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 to Seattle?

    There are many flights that can get you from Idaho to Seattle in 1h 24m. Fly via Alaska Airlines, Delta, or United Airlines to get the fastest option. Airlines will cover a distance of 223 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Idaho to Seattle one-way?

    One-way options have recently been found by users for as low as $60 on Delta. Other airlines that offer cheap prices include Alaska Airlines from $60 and Frontier from $68 one-way.

  • What are the most popular routes from Idaho to Seattle?

    Most travelers choose Boise Air Term. Gowen Fld - Seattle/Tacoma Intl, Spokane - Seattle/Tacoma Intl or Idaho Falls Fanning Field - Seattle/Tacoma Intl when deciding on the best route from Idaho to Seattle.

  • What are the most reliable airlines from Idaho to Seattle?

    No one likes to see their flight delayed. When booking a flight from Idaho to Seattle consider choosing Singapore Airlines (100%), Japan Airlines (93%) or Finnair (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Idaho to Seattle?

    The cheapest flight price from Idaho to Seattle is $88. On average you can expect to pay $1,116. The most popular route, (Boise Air Term. Gowen Fld - Seattle/Tacoma Intl), can usually be booked for $117.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Seattle 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 Seattle?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Seattle (average of $77). Flying from Idaho to Seattle in March is currently the most expensive (average of $137). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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Top 3 airlines flying from Idaho to Seattle

Discover the top 3 airlines that operate flights from Idaho to Seattle. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$330FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$117Average$242FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$127Average$268FlexibilityNo cancel feeOn-time75%

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