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Idaho

$61+ Cheap flights from San Francisco (SFO) 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from San Francisco to Idaho

Keep the following information in mind while searching for San Francisco to Idaho flight deals. Data was last updated August 14, 2025.

Round-trip from

$121
(Alaska Airlines)

One-way from

$69
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$247

Good round-trip deal

$182 or less

Good one-way deal

$88 or less
From San Francisco to Idaho
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One-way flight from San Francisco to Idaho
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Highest demand for flights based on searches. 15% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from San Francisco to Idaho.
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Price to beat on a one-way flight from San Francisco to Idaho.
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Find flight deals from San Francisco to Idaho

Cheapest flights from San Francisco to Idaho
Explore the most affordable flight options available from San Francisco to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/165:14 pmSFO - BOI
Nonstop1h 36mAlaska Airlines
Tue 9/3012:43 pmBOI - SFO
Nonstop1h 49mAlaska Airlines
Deal found 8/13$121
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/105:14 pmSFO - BOI
Nonstop1h 36mAlaska Airlines
Sat 9/1312:21 pmBOI - SFO
Nonstop1h 49mAlaska Airlines
Deal found 8/14$129
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 9/45:14 pmSFO - BOI
Nonstop1h 36mHawaiian Airlines
Tue 9/912:43 pmBOI - SFO
Nonstop1h 49mHawaiian Airlines
Deal found 8/14$130
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/115:14 pmSFO - BOI
Nonstop1h 36mAlaska Airlines
Sat 9/1312:21 pmBOI - SFO
Nonstop1h 49mAlaska Airlines
Deal found 8/14$138
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/115:14 pmSFO - BOI
Nonstop1h 36mAlaska Airlines
Thu 9/1812:43 pmBOI - SFO
Nonstop1h 49mAlaska Airlines
Deal found 8/14$139
This Southwest deal was found by Cheapflights users on 8/13. 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 9/1611:00 amSFO - BOI
1 stop4h 50mSouthwest
Tue 9/303:45 pmBOI - SFO
1 stop6h 55mSouthwest
Deal found 8/13$141
This Southwest deal was found by Cheapflights users on 8/14. 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 9/97:25 amSFO - BOI
2 stops6h 45mSouthwest
Tue 9/163:45 pmBOI - SFO
1 stop6h 55mSouthwest
Deal found 8/14$146
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2711:48 amSFO - BOI
1 stop5h 49mHawaiian Airlines
Sat 10/43:37 pmBOI - SFO
Nonstop1h 50mHawaiian Airlines
Deal found 8/12$148
This Delta deal was found by Cheapflights users on 8/14. 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 9/163:43 pmSFO - BOI
1 stop6h 17mDelta
Sat 9/204:20 pmBOI - SFO
1 stop4h 45mDelta
Deal found 8/14$149
This Delta deal was found by Cheapflights users on 8/14. 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.
Thu 9/48:55 amSFO - BOI
1 stop5h 08mDelta
Tue 9/94:19 pmBOI - SFO
1 stop4h 38mDelta
Deal found 8/14$150
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/162:42 pmSFO - BOI
1 stop7h 08mHawaiian Airlines
Sat 9/2012:21 pmBOI - SFO
Nonstop1h 49mHawaiian Airlines
Deal found 8/14$157
This Hawaiian Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/611:48 amSFO - GEG
Nonstop2h 08mHawaiian Airlines
Wed 9/109:54 amGEG - SFO
1 stop3h 38mHawaiian Airlines
Deal found 8/13$157

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 August 14, 2025.
Use the filters below to find and compare flights from San Francisco to Idaho that are best for you.

Fly from

San Francisco

Fly to

Idaho

Route

Depart

Return

Price

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/16

5:14 pm-7:50 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

Tue 9/30

12:43 pm-1:32 pm

Nonstop1h 49m

$121

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/16

2:17 pm-4:58 pm

Nonstop1h 41m

Boise Air Term. Gowen Fld

Tue 9/23

2:45 pm-3:35 pm

Nonstop1h 50m

$121

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/9

5:14 pm-7:50 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

Tue 9/16

12:43 pm-1:32 pm

Nonstop1h 49m

$121

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/16

5:14 pm-7:50 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

Tue 9/23

12:43 pm-1:32 pm

Nonstop1h 49m

$121

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 9/3

8:50 pm-11:34 pm

Nonstop1h 44m

Boise Air Term. Gowen Fld

Wed 9/10

9:52 am-10:50 am

Nonstop1h 58m

$121

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/9

11:06 am-1:49 pm

Nonstop1h 43m

Boise Air Term. Gowen Fld

Tue 9/16

2:45 pm-3:35 pm

Nonstop1h 50m

$121

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/16

5:14 pm-7:50 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

Sat 9/20

12:21 pm-1:10 pm

Nonstop1h 49m

$129

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/16

11:06 am-1:49 pm

Nonstop1h 43m

Boise Air Term. Gowen Fld

Sat 9/20

7:45 am-8:41 am

Nonstop1h 56m

$129

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Thu 9/4

5:14 pm-7:50 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

Tue 9/9

12:43 pm-1:32 pm

Nonstop1h 49m

$130

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 9/3

9:10 am-3:03 pm

1 stop4h 53m

Boise Air Term. Gowen Fld

Wed 9/10

6:00 pm-10:51 pm

1 stop5h 51m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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

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

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

Currently, October is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $314). Flying from San Francisco to Idaho in June is currently the most expensive (average of $399). 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 SFO to ID?

Find hourly flight availability from San Francisco 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 August 14, 2025.

When flying from San Francisco to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Francisco to Idaho

Explore weekly flight availability from San Francisco to Idaho. 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 August 14, 2025.

The most flights from SFO to USID are scheduled on a Wednesday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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 August 14, 2025.
Read through reviews of airlines operating flights from San Francisco to Idaho, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Idaho?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Idaho.

  • How popular is this San Francisco to Idaho flight route?

    Within the past month, 8 users have taken a look at flights from San Francisco to Idaho.

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

    One-way options have recently been found by users for as low as $69 on United Airlines. Other airlines that offer cheap prices include Delta from $71 and Alaska Airlines from $78 one-way.

  • What are the most popular routes from San Francisco to Idaho?

    The most popular flight routes from San Francisco to Idaho are San Francisco - Jackson Hole, San Francisco - Spokane and San Francisco - Boise Air Term. Gowen Fld.

  • What are the most reliable airlines from San Francisco to Idaho?

    The top 3 most reliable airlines when flying from San Francisco to Idaho are ANA (87%), United Airlines (81%) and Horizon Air (81%).

  • What are the cheapest flights from San Francisco to Idaho?

    Looking at all options, your cheapest flight can be booked for $68. While the most popular route (San Francisco - Jackson Hole) can be booked for $229 on average our data indicates $179 when flying from San Francisco to Idaho.

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

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

  • How can I find direct flights from San Francisco to Idaho?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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 San Francisco to Idaho?

    Currently, October is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $314). Flying from San Francisco to Idaho in June is currently the most expensive (average of $399). 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

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Alternative routes for San Francisco to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from San Francisco to Idaho

Discover the top 4 airlines that operate flights from San Francisco 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$214FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$155Average$462FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$156Average$369FlexibilityNo cancel feeOn-time75%
DeltaCheapest$228Average$440FlexibilityNo cancel feeOn-timeN/A

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