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$58+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SFO
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Alaska Airlines)

One-way from

$58
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$206

Good round-trip deal

$297 or less

Good one-way deal

$181 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Francisco flights.
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From Idaho to San Francisco
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One-way flight from Idaho to San Francisco
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Highest demand for flights based on searches. 12% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Idaho to San Francisco.
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Price to beat on a one-way flight from Idaho to San Francisco.
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Find 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 October 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:01 pmGEG - SFO
Nonstop2h 20mAlaska Airlines
Tue 11/1811:29 amSFO - GEG
Nonstop2h 16mAlaska Airlines
Deal found 10/14$116
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 12/207:26 pmGEG - SFO
Nonstop2h 29mAlaska Airlines
Tue 1/201:10 pmSFO - GEG
Nonstop2h 15mAlaska Airlines
Deal found 10/15$117
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Wed 11/128:41 amBOI - SFO
Nonstop1h 59mHawaiian Airlines
Wed 11/197:24 pmSFO - BOI
Nonstop1h 44mHawaiian Airlines
Deal found 10/15$127
This SmartFares deal was found by Cheapflights users on 10/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:41 amBOI - SFO
Nonstop1h 59mAlaska Airlines
Mon 11/177:24 pmSFO - BOI
Nonstop1h 44mAlaska Airlines
Deal found 10/14$129
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Tue 11/116:20 amBOI - SFO
Nonstop1h 54mUnited Airlines
Sat 11/1511:02 amSFO - BOI
Nonstop1h 42mUnited Airlines
Deal found 10/15$137
This Delta deal was found by Cheapflights users on 10/15. 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 12/217:23 pmGEG - SFO
1 stop5h 09mDelta
Sat 1/176:05 amSFO - GEG
1 stop6h 55mDelta
Deal found 10/15$137
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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.
Tue 11/41:08 pmBOI - SFO
1 stop4h 13mAlaska Airlines
Tue 11/47:24 pmSFO - BOI
Nonstop1h 44mAlaska Airlines
Deal found 10/14$141
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 11/135:00 amGEG - SFO
1 stop3h 55mAlaska Airlines
Thu 11/1311:29 amSFO - GEG
Nonstop2h 16mAlaska Airlines
Deal found 10/16$141
This Cheapflightsfares deal was found by Cheapflights users on 10/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:41 amBOI - SFO
Nonstop1h 59mAlaska Airlines
Sat 11/154:27 pmSFO - BOI
1 stop4h 39mAlaska Airlines
Deal found 10/15$145
This Cheapflightsfares deal was found by Cheapflights users on 10/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:26 pmGEG - SFO
Nonstop2h 29mAlaska Airlines
Sat 1/1712:00 pmSFO - GEG
1 stop5h 06mAlaska Airlines
Deal found 10/15$145
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/127:00 pmBOI - SFO
Nonstop2h 01mUnited Airlines
Thu 11/138:50 pmSFO - BOI
Nonstop1h 38mUnited Airlines
Deal found 10/15$147
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 12/207:26 pmGEG - SFO
Nonstop2h 29mAlaska Airlines
Thu 1/157:00 amSFO - GEG
1 stop5h 44mAlaska Airlines
Deal found 10/15$147

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 October 16, 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

Sun 12/21

7:26 pm-9:55 pm

Nonstop2h 29m

San Francisco

Wed 1/14

1:10 pm-3:25 pm

Nonstop2h 15m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 11/7

6:00 am-8:42 am

Nonstop2h 42m

San Francisco

Sun 11/9

8:25 am-10:42 am

Nonstop2h 17m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 12/20

7:26 pm-9:55 pm

Nonstop2h 29m

San Francisco

Wed 1/14

1:10 pm-3:25 pm

Nonstop2h 15m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 11/15

2:01 pm-4:21 pm

Nonstop2h 20m

San Francisco

Wed 11/19

11:29 am-1:45 pm

Nonstop2h 16m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 12/20

7:26 pm-9:55 pm

Nonstop2h 29m

San Francisco

Tue 1/20

1:10 pm-3:25 pm

Nonstop2h 15m

$117

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 3/10

9:00 am-9:45 am

Nonstop1h 45m

San Francisco

Wed 3/11

7:00 pm-9:35 pm

Nonstop1h 35m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Thu 11/6

5:24 pm-11:33 pm

1 stop6h 09m

San Francisco

Sun 11/9

6:00 am-10:39 am

1 stop4h 39m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Thu 11/6

6:00 am-8:42 am

Nonstop2h 42m

San Francisco

Sun 11/9

8:25 am-10:42 am

Nonstop2h 17m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sun 12/21

7:23 pm-12:32 am

1 stop5h 09m

San Francisco

Thu 1/15

6:05 am-10:37 am

1 stop4h 32m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/9

4:59 pm-7:12 pm

Nonstop2h 13m

San Francisco

Wed 1/14

2:58 pm-6:43 pm

1 stop3h 45m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

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 $67). 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 October 16, 2025.

It’s typically best to fly out from Idaho to San Francisco at noon. Doing so could potentially save you 22% 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 October 12, 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. Sunday evenings 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 October 16, 2025.

The most flights from USID to SFO are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost to fly round-trip from Idaho to San Francisco?

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, 31 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 1h 45m. The time it takes to get you to your destination is usually consistent. There are 522 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 United Airlines ($59), Alaska Airlines ($68), and Delta ($69).

  • 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: Alaska Airlines (93%), Hawaiian Airlines (93%), SkyWest Airlines (89%).

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

    While on average a flight from Idaho to San Francisco is generally $1,006, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Spokane - San Francisco), you can expect to pay $117 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 $67). 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
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Santa Clara
Manteca
Sunnyvale
Vacaville
Vallejo
Hollister
Foster City
Union City
Fairfield
Burlingame
Redwood City
Lodi
San Mateo

Browse thousands of different options on Cheapflights for your next trip

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$73Average$172FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$135Average$343FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$137Average$289FlexibilityNo cancel feeOn-time75%
DeltaCheapest$210Average$412FlexibilityNo cancel feeOn-timeN/A

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