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Idaho

$69+ Cheap flights from Seattle (SEA) to Idaho

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.
SEA — BOI
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Seattle to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Idaho (USID). 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 19, 2024.

Round-trip from

$128
(SmartFares)

One-way from

$69
(Delta)
From Seattle/Tacoma Intl to Idaho
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One-way flight from Seattle/Tacoma Intl to Idaho
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Find flight deals from Seattle to Idaho

Cheapest flights from Seattle to Idaho
Explore the most affordable flight options available from Seattle to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:15 pmSEA - GEG
Nonstop1h 02mAlaska Airlines
Wed 1/86:00 amGEG - SEA
Nonstop1h 21mAlaska Airlines
Deal found 12/18$257
This Alaska Airlines deal was found by Cheapflights users on 12/19. 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.
Fri 12/279:15 pmSEA - IDA
Nonstop1h 44mAlaska Airlines
Fri 1/104:04 pmIDA - SEA
Nonstop1h 52mAlaska Airlines
Deal found 12/19$297
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/261:59 pmSEA - BOI
Nonstop1h 20mAlaska Airlines
Sat 1/47:00 amBOI - SEA
Nonstop1h 55mAlaska Airlines
Deal found 12/18$307
This Delta deal was found by Cheapflights users on 12/19. 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.
Fri 12/275:05 pmSEA - IDA
1 stop4h 21mDelta
Fri 1/101:10 pmIDA - SEA
1 stop6h 36mDelta
Deal found 12/19$316
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:35 pmSEA - BOI
Nonstop1h 34mDelta
Wed 1/17:35 amBOI - SEA
Nonstop2h 05mDelta
Deal found 12/18$337
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2310:55 pmSEA - GEG
Nonstop1h 11mDelta
Mon 1/67:24 pmGEG - SEA
Nonstop1h 26mDelta
Deal found 12/18$407
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/205:00 amSEA - BOI
1 stop5h 32mUnited Airlines
Mon 1/67:25 pmBOI - SEA
1 stop5h 25mUnited Airlines
Deal found 12/18$461
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.
Thu 12/197:05 amSEA - BOI
2 stops9h 20mSouthwest
Wed 12/257:25 amBOI - SEA
1 stop4h 55mSouthwest
Deal found 12/18$491
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/197:15 amSEA - JAC
1 stop6h 56mUnited Airlines
Sun 12/226:05 pmJAC - SEA
1 stop6h 12mUnited Airlines
Deal found 12/18$586
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.
Tue 12/179:00 amSEA - GEG
1 stop5h 50mSouthwest
Wed 12/1811:30 amGEG - SEA
1 stop6h 55mSouthwest
Deal found 12/16$632
This Mytrip deal was found by Cheapflights users on 12/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/276:11 amSEA - IDA
3 stops31h 03mMultiple Airlines
Fri 1/106:32 pmIDA - SEA
1 stop6h 47mMultiple Airlines
Deal found 12/19$646
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/219:55 amSEA - SUN
Nonstop1h 44mDelta
Mon 12/301:35 pmSUN - SEA
Nonstop2h 01mDelta
Deal found 12/18$647

Find flights from Seattle to Idaho within your budget

Customize your flight search to find flights from Seattle to Idaho 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 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 2/1

9:45 am-12:19 pm

Nonstop1h 34m

Boise Air Term. Gowen Fld

Sat 2/8

6:20 pm-7:01 pm

Nonstop1h 41m

$128

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 2/1

1:45 pm-4:16 pm

Nonstop1h 31m

Boise Air Term. Gowen Fld

Sat 2/8

7:55 am-8:45 am

Nonstop1h 50m

$137

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 1/11

8:00 pm-10:23 pm

Nonstop1h 23m

Boise Air Term. Gowen Fld

Mon 1/13

7:38 pm-12:19 am

1 stop5h 41m

$144

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Fri 1/10

5:45 am-6:43 pm

1 stop11h 58m

Boise Air Term. Gowen Fld

Mon 1/13

7:38 pm-12:19 am

1 stop5h 41m

$149

SeattleSpokane

SEA - GEG

SEAGEG

Seattle/Tacoma Intl

Wed 1/8

9:30 am-10:45 am

Nonstop1h 15m

Spokane

Mon 1/13

6:00 am-7:30 am

Nonstop1h 30m

$167

SeattleSpokane

SEA - GEG

SEAGEG

Seattle/Tacoma Intl

Sat 2/1

6:45 pm-7:45 pm

Nonstop1h 00m

Spokane

Sat 2/8

7:30 am-8:50 am

Nonstop1h 20m

$169

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 1/15

9:20 am-4:27 pm

1 stop6h 07m

Boise Air Term. Gowen Fld

Thu 1/16

10:57 am-3:45 pm

1 stop5h 48m

$176

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Tue 2/18

7:55 pm-10:36 pm

Nonstop1h 41m

Idaho Falls Fanning Field

Wed 2/19

8:00 am-9:05 am

Nonstop2h 05m

$177

SeattleHailey

SEA - SUN

SEASUN

Seattle/Tacoma Intl

Thu 1/9

7:00 am-9:40 am

Nonstop1h 40m

Hailey Sun Valley-Friedman

Sun 1/12

6:57 pm-7:45 pm

Nonstop1h 48m

$186

SeattleJackson

SEA - JAC

SEAJAC

Seattle/Tacoma Intl

Fri 1/10

5:30 am-12:15 pm

1 stop5h 45m

Jackson Hole

Tue 1/14

1:10 pm-6:46 pm

1 stop6h 36m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 50 results
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Best time to book a flight from Seattle to Idaho

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

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

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Idaho (average of $314). Flying from Seattle to Idaho in June is currently the most expensive (average of $436). 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 SEA to ID?

Find hourly flight availability from Seattle to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

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

Rainfall in Idaho by month

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

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

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

If weather is an important factor for your trip to Idaho, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated December 19, 2024.
Get a feel of what it's like to fly with Alaska Airlines, United Airlines and Southwest from Seattle to Idaho by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,836 reviews

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

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
4,836 reviews
Southwest
8.1
Very good
4,836 reviews

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

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
9,551 reviews
Southwest
8.1
Very good
4,836 reviews

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

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
8,600 reviews
Southwest
8.1
Very good
4,836 reviews

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

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
9,048 reviews
Southwest
8.1
Very good
4,836 reviews

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

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
4,836 reviews

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

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 Seattle to Idaho. 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 from for flights from Seattle to Idaho?

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

  • How popular is this Seattle to Idaho flight route?

    This flight path from Seattle/Tacoma Intl to Idaho was viewed by 20 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 Seattle to Idaho one-way?

    The cheapest airlines for a one-way flight from Seattle to Idaho are Delta ($69), Spirit Airlines ($74), and Alaska Airlines ($78).

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

    When deciding which route to take from Seattle to Idaho consider Seattle/Tacoma Intl - Spokane, Seattle/Tacoma Intl - Boise Air Term. Gowen Fld or Seattle/Tacoma Intl - Jackson Hole as they are the most popular.

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

    Consider Air France (97%), Virgin Atlantic (92%) or Aeromexico (92%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Idaho.

  • What are the cheapest flights from Seattle to Idaho?

    Looking for the cheapest flight from Seattle to Idaho? While on average our users pay $228, our data indicates the cheapest price to be $77. The most popular route (Seattle/Tacoma Intl - Spokane), is priced around $157.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Idaho (average of $314). Flying from Seattle to Idaho in June is currently the most expensive (average of $436). 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 Seattle to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Seattle to Idaho

Discover the top 3 airlines that operate flights from Seattle to Idaho. 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 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$98Average$410FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$106Average$158FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$146Average$314FlexibilityNo cancel feeOn-time75%
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