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$75+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SFO
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:04 pm
BOI
-
SFO
1 stop5h 23m
Hawaiian Airlines
Fri 4/106:56 pm
SFO
-
BOI
Nonstop1h 44m
Hawaiian Airlines
Deal found 1/18$153
This United Airlines deal was found by Cheapflights users on 1/18. 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 3/610:49 am
BOI
-
SFO
Nonstop2h 06m
United Airlines
Sun 3/89:05 pm
SFO
-
BOI
Nonstop1h 52m
United Airlines
Deal found 1/18$157
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:40 am
BOI
-
SFO
Nonstop2h 00m
Multiple Airlines
Fri 4/106:56 pm
SFO
-
BOI
Nonstop1h 44m
Multiple Airlines
Deal found 1/18$161
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 3/61:25 pm
BOI
-
SFO
Nonstop2h 01m
Alaska Airlines
Sat 3/76:27 pm
SFO
-
BOI
1 stop4h 32m
Alaska Airlines
Deal found 1/19$167
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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.
Wed 4/221:20 pm
GEG
-
SFO
Nonstop2h 20m
Alaska Airlines
Tue 4/2810:28 am
SFO
-
GEG
Nonstop2h 12m
Alaska Airlines
Deal found 1/19$167
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:00 am
GEG
-
SFO
Nonstop2h 22m
United Airlines
Tue 3/246:54 pm
SFO
-
GEG
Nonstop2h 09m
United Airlines
Deal found 1/19$172
This Delta deal was found by Cheapflights users on 1/20. 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 2/246:35 pm
BOI
-
SFO
1 stop6h 19m
Delta
Mon 3/97:10 pm
SFO
-
BOI
1 stop3h 49m
Delta
Deal found 1/20$177
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 4/107:40 am
BOI
-
SFO
Nonstop2h 00m
Alaska Airlines
Mon 4/139:07 pm
SFO
-
BOI
1 stop24h 45m
Alaska Airlines
Deal found 1/19$180
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/211:25 pm
BOI
-
SFO
Nonstop2h 01m
Hawaiian Airlines
Tue 2/244:21 pm
SFO
-
BOI
1 stop5h 19m
Hawaiian Airlines
Deal found 1/18$182
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Sat 2/287:00 am
GEG
-
SFO
Nonstop2h 28m
United Airlines
Sun 3/16:58 pm
SFO
-
GEG
Nonstop2h 09m
United Airlines
Deal found 1/18$182
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/191:44 pm
BOI
-
SFO
Nonstop2h 06m
United Airlines
Thu 2/198:46 pm
SFO
-
BOI
Nonstop1h 52m
United Airlines
Deal found 1/19$184
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 4/107:40 am
BOI
-
SFO
Nonstop2h 00m
Alaska Airlines
Sun 4/126:56 pm
SFO
-
BOI
Nonstop1h 44m
Alaska Airlines
Deal found 1/20$187

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$153
(Kiwi.com)

One-way from

$75
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$307

Good round-trip deal

$344 or less

Good one-way deal

$169 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. 9% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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.
Search Deals

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 January 20, 2026.
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

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 3/6

10:49 am-11:55 am

Nonstop2h 06m

San Francisco

Sun 3/8

9:05 pm-11:57 pm

Nonstop1h 52m

$157

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 2/24

1:25 pm-2:26 pm

Nonstop2h 01m

San Francisco

Mon 3/9

7:31 pm-10:15 pm

Nonstop1h 44m

$157

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 3/6

12:59 pm-2:05 pm

Nonstop2h 06m

San Francisco

Mon 3/9

9:05 pm-11:57 pm

Nonstop1h 52m

$157

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Tue 3/3

3:45 pm-6:03 pm

Nonstop2h 18m

San Francisco

Tue 3/17

10:52 am-1:02 pm

Nonstop2h 10m

$167

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 3/21

6:00 am-8:22 am

Nonstop2h 22m

San Francisco

Wed 3/25

6:54 pm-9:03 pm

Nonstop2h 09m

$172

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Mon 3/23

6:55 pm-12:10 am

1 stop6h 15m

San Francisco

Thu 3/26

5:00 am-10:20 am

1 stop4h 20m

$177

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Mon 3/9

6:00 pm-11:59 pm

1 stop6h 59m

San Francisco

Wed 3/11

6:30 am-2:58 pm

1 stop7h 28m

$177

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 3/13

7:02 am-9:30 am

Nonstop2h 28m

San Francisco

Wed 3/18

6:54 pm-9:03 pm

Nonstop2h 09m

$177

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 4/10

7:40 am-8:40 am

Nonstop2h 00m

San Francisco

Mon 4/13

9:07 pm-10:52 pm

1 stop24h 45m

$180

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Sat 2/28

12:50 pm-10:05 pm

2 stops10h 15m

San Francisco

Sun 3/1

3:40 pm-12:10 am

1 stop7h 30m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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, October is the cheapest month in which you can book a flight from Idaho to San Francisco (average of $80). Flying from Idaho to San Francisco in December is currently the most expensive (average of $157). 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 January 20, 2026.

It’s typically best to fly out from Idaho to San Francisco in the afternoon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, 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 January 17, 2026.

Travelers seeking maximum savings on their Idaho to San Francisco flight should consider departing on Saturday afternoons when fares are most often at their lowest. Friday 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 January 20, 2026.

The most flights from USID to SFO are scheduled on a Monday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 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, 35 users have taken a look at flights from Idaho to San Francisco.

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

    Airlines like Hawaiian Airlines, United Airlines, and Alaska Airlines fly from Idaho to San Francisco in about 2h 01m. The time it takes to get you to your destination can typically vary by up to 3h 22m. There are 522 mi between Idaho and San Francisco. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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), United Airlines ($73), and Hawaiian 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 Jackson Hole - 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: Emirates (83%), Air New Zealand (80%), United Airlines (79%).

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

    While on average a flight from Idaho to San Francisco is generally $1,015, our data shows the cheapest flight currently is $92. When looking at the most popular route, (Spokane - San Francisco), you can expect to pay $167 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, October is the cheapest month in which you can book a flight from Idaho to San Francisco (average of $80). Flying from Idaho to San Francisco in December is currently the most expensive (average of $157). 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
South San Francisco
Santa Cruz
Roseville
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Vacaville
Turlock
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Davis
Hollister
Redwood City
Union City

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Alternative routes for Idaho to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$68Average$166FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$116Average$340FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$131Average$287FlexibilityNo cancel feeOn-time75%
DeltaCheapest$196Average$461FlexibilityNo cancel feeOn-timeN/A

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