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$69+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Idaho to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Seattle (SEA). 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 December 18, 2024.

Round-trip from

$143
(iWofly)

One-way from

$69
(Delta)
From Idaho to Seattle/Tacoma Intl
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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 December 18, 2024.

This Alaska Airlines deal was found by Cheapflights users on 12/17. 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 12/265:00 amGEG - SEA
Nonstop1h 22mAlaska Airlines
Wed 1/86:45 pmSEA - GEG
Nonstop1h 00mAlaska Airlines
Deal found 12/17$257
This Alaska Airlines deal was found by Cheapflights users on 12/17. 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 12/317:00 amBOI - SEA
Nonstop1h 55mAlaska Airlines
Fri 1/312:32 pmSEA - BOI
Nonstop1h 22mAlaska Airlines
Deal found 12/17$277
This Delta deal was found by Cheapflights users on 12/17. 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.
Fri 12/276:55 amGEG - SEA
Nonstop1h 29mDelta
Mon 1/69:30 amSEA - GEG
Nonstop1h 15mDelta
Deal found 12/17$298
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 12/316:00 amIDA - SEA
Nonstop2h 17mAlaska Airlines
Wed 1/19:15 pmSEA - IDA
Nonstop1h 44mAlaska Airlines
Deal found 12/16$318
This Expedia deal was found by Cheapflights users on 12/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3010:14 amBOI - SEA
1 stop5h 19mMultiple Airlines
Thu 1/29:21 pmSEA - BOI
1 stop12h 41mMultiple Airlines
Deal found 12/18$329
This Southwest deal was found by Cheapflights users on 12/16. 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.
Fri 12/202:20 pmBOI - SEA
2 stops10h 10mSouthwest
Mon 1/67:30 amSEA - BOI
1 stop6h 15mSouthwest
Deal found 12/16$431
This Delta deal was found by Cheapflights users on 12/17. 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 12/227:35 amBOI - SEA
Nonstop2h 05mDelta
Tue 12/247:35 pmSEA - BOI
Nonstop1h 34mDelta
Deal found 12/17$437
This Delta deal was found by Cheapflights users on 12/17. 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.
Fri 12/277:00 amJAC - SEA
1 stop6h 44mDelta
Tue 12/315:30 amSEA - JAC
1 stop5h 50mDelta
Deal found 12/17$446
This Delta deal was found by Cheapflights users on 12/17. 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 12/216:55 pmIDA - SEA
1 stop6h 31mDelta
Tue 12/315:30 amSEA - IDA
1 stop5h 56mDelta
Deal found 12/17$457
This Southwest deal was found by Cheapflights users on 12/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/313:35 pmGEG - SEA
1 stop5h 15mSouthwest
Wed 1/19:00 amSEA - GEG
1 stop5h 50mSouthwest
Deal found 12/18$523
This Delta deal was found by Cheapflights users on 12/17. 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 12/316:20 amPIH - SEA
1 stop7h 24mDelta
Wed 1/19:50 amSEA - PIH
1 stop5h 25mDelta
Deal found 12/17$538
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/217:25 pmBOI - SEA
1 stop5h 25mUnited Airlines
Mon 12/235:00 amSEA - BOI
1 stop5h 32mUnited Airlines
Deal found 12/17$547

Find flights from Idaho to Seattle within your budget

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 1/17

9:30 am-10:15 am

Nonstop1h 45m

Seattle/Tacoma Intl

Sat 2/8

8:00 pm-10:23 pm

Nonstop1h 23m

$143

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 1/30

7:38 pm-12:19 am

1 stop5h 41m

Seattle/Tacoma Intl

Mon 2/3

5:45 am-6:43 pm

1 stop11h 58m

$149

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 1/10

7:38 pm-12:19 am

1 stop5h 41m

Seattle/Tacoma Intl

Mon 1/13

1:59 pm-4:19 pm

Nonstop1h 20m

$154

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Wed 1/29

8:30 pm-9:44 pm

Nonstop1h 14m

Seattle/Tacoma Intl

Sat 2/1

3:51 pm-4:53 pm

Nonstop1h 02m

$167

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Sat 2/1

6:00 am-7:30 am

Nonstop1h 30m

Seattle/Tacoma Intl

Sat 2/8

9:20 pm-10:28 pm

Nonstop1h 08m

$171

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 1/14

7:21 am-1:32 pm

1 stop7h 11m

Seattle/Tacoma Intl

Tue 1/21

12:50 pm-7:27 pm

1 stop5h 37m

$176

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Wed 1/15

4:04 pm-4:56 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Fri 1/17

12:51 pm-3:27 pm

Nonstop1h 36m

$177

JacksonSeattle

JAC - SEA

JACSEA

Jackson Hole

Thu 1/9

7:05 am-12:25 pm

1 stop6h 20m

Seattle/Tacoma Intl

Sun 1/12

1:30 pm-7:02 pm

1 stop4h 32m

$188

HaileySeattle

SUN - SEA

SUNSEA

Hailey Sun Valley-Friedman

Sat 1/11

6:57 pm-7:45 pm

Nonstop1h 48m

Seattle/Tacoma Intl

Tue 1/14

7:00 am-9:40 am

Nonstop1h 40m

$197

LewistonSeattle

LWS - SEA

LWSSEA

Lewiston Nez Perce Rgnl

Sat 1/18

7:00 am-8:28 am

Nonstop1h 28m

Seattle/Tacoma Intl

Sun 1/19

9:40 pm-10:59 pm

Nonstop1h 19m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 48 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.

Travel insights for flights from Idaho to Seattle

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Seattle (average of $238). Flying from Idaho to Seattle 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 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 December 18, 2024.

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

Weekly flight availability from Idaho to Seattle

Explore weekly flight availability from Idaho to Seattle. 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 December 18, 2024.

The most flights from USID to SEA are scheduled on a Wednesday (47 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle 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 Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated December 18, 2024.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Idaho to Seattle have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 83 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 Seattle one-way?

    One-way options have recently been found by users for as low as $69 on Delta. Other airlines that offer cheap prices include Spirit Airlines from $76 and Alaska Airlines from $78 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 Qatar Airways (92%), WestJet (91%) or Air Tahiti Nui (89%) 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 $1,019. The most popular route, (Boise Air Term. Gowen Fld - Seattle/Tacoma Intl), can usually be booked for $157.

  • 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, January is the cheapest month in which you can book a flight from Idaho to Seattle (average of $238). Flying from Idaho to Seattle 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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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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$90Average$164FlexibilityNo cancel feeOn-time65%
DeltaCheapest$117Average$423FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$125Average$290FlexibilityNo cancel feeOn-time75%
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