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$49+ Cheap flights from Idaho to San Francisco (SFO)

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SFO
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Idaho to San Francisco

Cheapest flights from Idaho to San Francisco
Explore the most affordable flight options available from Idaho to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 12/315:43 amBOI - SFO
1 stop4h 34mAlaska Airlines
Wed 1/77:24 pmSFO - BOI
Nonstop1h 45mAlaska Airlines
Deal found 12/2$207
This United Airlines deal was found by Cheapflights users on 12/1. 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.
Wed 12/172:20 pmBOI - SFO
Nonstop2h 01mUnited Airlines
Sat 1/109:00 pmSFO - BOI
Nonstop1h 48mUnited Airlines
Deal found 12/1$232
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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 12/188:07 amBOI - SFO
Nonstop2h 19mAlaska Airlines
Thu 1/17:25 pmSFO - BOI
Nonstop1h 42mAlaska Airlines
Deal found 12/4$247
This KAYAK deal was found by Cheapflights users on 12/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:07 amBOI - SFO
Nonstop2h 19mAlaska Airlines
Sun 12/287:25 pmSFO - BOI
Nonstop1h 42mAlaska Airlines
Deal found 12/2$248
This Delta deal was found by Cheapflights users on 12/3. 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 12/251:40 pmSUN - SFO
1 stop5h 02mDelta
Sun 1/45:45 amSFO - SUN
1 stop6h 15mDelta
Deal found 12/3$255
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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 12/125:51 amGEG - SFO
1 stop5h 09mAlaska Airlines
Sat 1/107:00 amSFO - GEG
1 stop4h 12mAlaska Airlines
Deal found 12/4$256
This Delta deal was found by Cheapflights users on 12/1. 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 12/175:58 pmBOI - SFO
1 stop5h 15mDelta
Sat 1/105:05 pmSFO - BOI
1 stop5h 07mDelta
Deal found 12/1$262
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Fri 12/1910:37 amGEG - SFO
1 stop23h 09mMultiple Airlines
Sun 1/118:14 pmSFO - GEG
1 stop13h 44mMultiple Airlines
Deal found 12/2$264
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/127:00 amGEG - SFO
Nonstop2h 44mUnited Airlines
Sat 1/108:25 amSFO - GEG
Nonstop2h 19mUnited Airlines
Deal found 12/4$271
This Southwest deal was found by Cheapflights users on 12/1. 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.
Wed 12/1712:05 pmBOI - SFO
2 stops7h 30mSouthwest
Sat 1/107:55 amSFO - BOI
1 stop6h 20mSouthwest
Deal found 12/1$274
This Southwest deal was found by Cheapflights users on 12/4. 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 12/126:25 amGEG - SFO
2 stops7h 25mSouthwest
Sat 1/105:10 amSFO - GEG
1 stop7h 15mSouthwest
Deal found 12/4$281
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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 12/188:07 amBOI - SFO
Nonstop2h 19mAlaska Airlines
Wed 12/317:25 pmSFO - BOI
Nonstop1h 42mAlaska Airlines
Deal found 12/4$282

Find flight deals from Idaho to San Francisco

Keep the following information in mind while searching for Idaho to San Francisco flight deals. Data was last updated December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$90
(Kiwi.com)

One-way from

$49
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$336

Good round-trip deal

$328 or less

Good one-way deal

$119 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Francisco flights.
Search Deals
From Idaho to San Francisco
Search Deals
One-way flight from Idaho to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Idaho to San Francisco.
Search Deals
Price to beat on a one-way flight from Idaho to San Francisco.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to San Francisco 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 4, 2025.
Use the filters below to find and compare flights from Idaho to San Francisco that are best for you.

Fly from

Idaho

Fly to

San Francisco

Route

Depart

Return

Price

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Tue 3/3

3:45 pm-6:03 pm

Nonstop2h 18m

San Francisco

Tue 3/10

10:52 am-1:02 pm

Nonstop2h 10m

$97

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Wed 1/21

12:24 pm-3:06 pm

Nonstop2h 42m

San Francisco

Sun 1/25

8:25 am-10:44 am

Nonstop2h 19m

$97

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Thu 1/22

6:53 am-9:44 am

Nonstop2h 51m

San Francisco

Mon 1/26

8:25 am-10:44 am

Nonstop2h 19m

$97

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Tue 3/3

3:45 pm-6:03 pm

Nonstop2h 18m

San Francisco

Wed 3/11

7:31 pm-11:03 pm

1 stop3h 32m

$115

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Mon 3/2

3:45 pm-6:03 pm

Nonstop2h 18m

San Francisco

Wed 3/11

10:52 am-1:02 pm

Nonstop2h 10m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/9

2:10 pm-9:50 pm

1 stop7h 40m

San Francisco

Wed 1/14

5:30 am-1:25 pm

1 stop7h 55m

$123

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sun 3/1

5:00 am-9:08 am

1 stop4h 08m

San Francisco

Tue 3/10

10:52 am-1:02 pm

Nonstop2h 10m

$127

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Wed 3/4

5:00 am-9:08 am

1 stop4h 08m

San Francisco

Tue 3/10

10:52 am-1:02 pm

Nonstop2h 10m

$127

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Wed 1/21

4:59 pm-7:12 pm

Nonstop2h 13m

San Francisco

Sun 1/25

6:18 pm-11:04 pm

1 stop4h 46m

$127

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 1/31

6:29 pm-11:03 pm

1 stop4h 34m

San Francisco

Sun 2/1

1:10 pm-3:25 pm

Nonstop2h 15m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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

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

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

Currently, November is the cheapest month in which you can book a flight from Idaho to San Francisco (average of $64). Flying from Idaho to San Francisco in March is currently the most expensive (average of $117). 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 SFO?

Find hourly flight availability from Idaho to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

It’s typically best to fly out from Idaho to San Francisco at noon. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Idaho to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Idaho to San Francisco. Price data was last updated on November 29, 2025.

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

Weekly flight availability from Idaho to San Francisco

Explore weekly flight availability from Idaho to San Francisco. 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 4, 2025.

The most flights from USID to SFO are scheduled on a Monday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).

Related info for your journey

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

    If you book a flight to San Francisco from Idaho, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco.

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

    Within the past month, 36 users have taken a look at flights from Idaho to San Francisco.

  • How long is the flight from Idaho to San Francisco?

    Airlines like Alaska Airlines, United Airlines, and Hawaiian Airlines fly from Idaho to San Francisco in about 2h 18m. The time it takes to get you to your destination is usually consistent. There are 733 mi between Idaho and San Francisco. Generally, flights for this route are nonstop.

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

    The cheapest airlines for a one-way flight from Idaho to San Francisco are Alaska Airlines ($68), Hawaiian Airlines ($78), and United Airlines ($78).

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

    When deciding which route to take from Idaho to San Francisco consider Spokane - San Francisco, Boise Air Term. Gowen Fld - San Francisco or Hailey Sun Valley-Friedman - San Francisco as they are the most popular.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Idaho to San Francisco on time: Horizon Air (92%), ANA (90%), United Airlines (88%).

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

    While on average a flight from Idaho to San Francisco is generally $811, our data shows the cheapest flight currently is $78. When looking at the most popular route, (Spokane - San Francisco), you can expect to pay $97 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Idaho to San Francisco (average of $64). Flying from Idaho to San Francisco in March is currently the most expensive (average of $117). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Daly City
Redwood City
Vallejo
Hollister
Milpitas
Foster City
Union City
Davis
San Ramon
Burlingame

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Top 4 airlines flying from Idaho to San Francisco

Discover the top 4 airlines that operate flights from Idaho to San Francisco. 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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$73Average$172FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$133Average$346FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$137Average$291FlexibilityNo cancel feeOn-time75%
DeltaCheapest$210Average$448FlexibilityNo cancel feeOn-timeN/A

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