HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$79+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SFO
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 10, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 3/317:40 am
BOI
-
SFO
Nonstop2h 00m
Alaska Airlines
Tue 4/76:56 pm
SFO
-
BOI
Nonstop1h 44m
Alaska Airlines
Deal found 3/9$157
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 5/146:54 pm
BOI
-
SFO
Nonstop1h 49m
Alaska Airlines
Wed 5/273:05 pm
SFO
-
BOI
Nonstop1h 38m
Alaska Airlines
Deal found 3/6$163
This Delta deal was found by Cheapflights users on 3/7. 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 5/85:45 am
BOI
-
SFO
1 stop4h 49m
Delta
Sun 5/105:55 am
SFO
-
BOI
1 stop4h 40m
Delta
Deal found 3/7$165
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Sun 4/57:40 am
BOI
-
SFO
Nonstop2h 00m
Alaska Airlines
Tue 4/145:43 pm
SFO
-
BOI
1 stop4h 19m
Alaska Airlines
Deal found 3/9$167
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 5/146:54 pm
BOI
-
SFO
Nonstop1h 49m
Alaska Airlines
Mon 6/112:33 pm
SFO
-
BOI
1 stop3h 55m
Alaska Airlines
Deal found 3/6$173
This Delta deal was found by Cheapflights users on 3/9. 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 3/316:15 pm
BOI
-
SFO
1 stop6h 44m
Delta
Tue 4/77:19 pm
SFO
-
BOI
1 stop3h 40m
Delta
Deal found 3/9$177
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 4/225:00 am
GEG
-
SFO
1 stop4h 27m
Alaska Airlines
Tue 4/2810:28 am
SFO
-
GEG
Nonstop2h 12m
Alaska Airlines
Deal found 3/5$177
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 4/162:22 pm
BOI
-
SFO
1 stop10h 37m
Alaska Airlines
Sun 4/196:56 pm
SFO
-
BOI
Nonstop1h 44m
Alaska Airlines
Deal found 3/6$181
This Southwest deal was found by Cheapflights users on 3/5. 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 4/174:20 pm
BOI
-
SFO
1 stop7h 45m
Southwest
Mon 4/203:00 pm
SFO
-
BOI
2 stops8h 45m
Southwest
Deal found 3/5$182
This Delta deal was found by Cheapflights users on 3/6. 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 5/156:41 pm
BOI
-
SFO
1 stop3h 49m
Delta
Tue 5/264:53 pm
SFO
-
BOI
1 stop6h 11m
Delta
Deal found 3/6$183
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/148:28 am
BOI
-
SFO
Nonstop2h 02m
United Airlines
Mon 5/186:25 pm
SFO
-
BOI
Nonstop1h 52m
United Airlines
Deal found 3/8$185
This United Airlines deal was found by Cheapflights users on 3/6. 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 5/28:55 am
GEG
-
SFO
Nonstop2h 28m
United Airlines
Sat 5/912:10 pm
SFO
-
GEG
Nonstop2h 21m
United Airlines
Deal found 3/6$185

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$157
(Alaska Airlines)

One-way from

$79
(United Airlines)

Popular in

February

Cheapest in

October

Average price

$327

Good round-trip deal

$343 or less

Good one-way deal

$158 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. 15% potential increase in price ($47 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 March 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 March 10, 2026.
Use the filters below to find and compare flights from Idaho to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Thu 4/2

4:05 pm-5:10 pm

Nonstop2h 05m

San Francisco

Thu 4/9

8:10 am-11:06 am

Nonstop1h 56m

$157

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 4/3

7:40 am-8:40 am

Nonstop2h 00m

San Francisco

Sun 4/5

6:56 pm-9:40 pm

Nonstop1h 44m

$187

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 5/9

7:27 am-2:13 pm

1 stop6h 46m

San Francisco

Tue 5/12

10:28 am-12:40 pm

Nonstop2h 12m

$190

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 4/7

6:15 pm-11:59 pm

1 stop6h 44m

San Francisco

Thu 4/9

6:00 am-1:05 pm

1 stop6h 05m

$191

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 5/2

6:45 am-5:15 pm

2 stops10h 30m

San Francisco

Sat 5/9

6:00 am-12:25 pm

1 stop6h 25m

$192

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Wed 4/1

7:40 am-8:40 am

Nonstop2h 00m

San Francisco

Tue 4/7

12:00 pm-7:46 pm

1 stop6h 46m

$197

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Thu 4/23

1:20 pm-3:40 pm

Nonstop2h 20m

San Francisco

Mon 4/27

5:57 pm-10:49 pm

1 stop4h 52m

$197

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 5/9

6:45 am-5:15 pm

2 stops10h 30m

San Francisco

Sun 5/10

5:00 am-11:05 am

1 stop6h 05m

$202

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 5/15

6:54 pm-7:43 pm

Nonstop1h 49m

San Francisco

Wed 5/27

12:33 pm-5:28 pm

1 stop3h 55m

$203

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 4/24

2:50 pm-11:05 pm

1 stop8h 15m

San Francisco

Mon 4/27

5:40 pm-12:30 am

1 stop6h 50m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 March 10, 2026.

It’s typically best to fly out from Idaho to San Francisco in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying at noon, 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 February 21, 2026.

Travelers seeking maximum savings on their Idaho to San Francisco flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday 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 March 10, 2026.

The most flights from USID to SFO are scheduled on a Monday (19 on average). You will have fewer flight options on Wednesday, 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, 32 users have taken a look at flights from Idaho to San Francisco.

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

    Airlines like United Airlines, Alaska Airlines, and Delta fly from Idaho to San Francisco in about 2h. The time it takes to get you to your destination can typically vary by up to 4h 44m. 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 ($68), 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 Boise Air Term. Gowen Fld - San Francisco, Spokane - 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: Qatar Airways (84%), Emirates (82%), Alaska Airlines (80%).

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

    While on average a flight from Idaho to San Francisco is generally $406, our data shows the cheapest flight currently is $78. When looking at the most popular route, (Boise Air Term. Gowen Fld - San Francisco), you can expect to pay $148 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 Clara
Santa Cruz
Livermore
Roseville
Watsonville
San Bruno
Sunnyvale
Vacaville
Turlock
San Carlos
San Ramon
Redwood City
Daly City
Rancho Cordova
San Lorenzo
Davis
Hollister
Manteca
Union City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Newark to San Francisco flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
LaGuardia to San Francisco flights
Seattle to Las Vegas flights
Seattle to Los Angeles flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
San Francisco to Las Vegas flights
Dulles Intl to Las Vegas flights
Denver to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Boston to Las Vegas flights
LaGuardia to Los Angeles flights
LaGuardia to Las Vegas flights
Minneapolis to Las Vegas flights
San Francisco to Los Angeles flights
Dallas/Fort Worth to San Francisco flights
Atlanta to Las Vegas flights
Seattle to Ontario flights
Seattle to San Diego flights
Baltimore to Las Vegas flights
Boston to Los Angeles flights
O'Hare Intl to Los Angeles flights
Atlanta to Los Angeles flights
O'Hare Intl to San Francisco flights
Reagan-National to Las Vegas flights
Reagan-National to Los Angeles flights
Baltimore to Los Angeles flights
Portland to Las Vegas flights
Dulles Intl to Los Angeles flights
Los Angeles to Las Vegas flights
San Francisco to Santa Ana flights
Orlando to Las Vegas flights
Hobby to Las Vegas flights
Philadelphia to Las Vegas flights
Los Angeles to San Francisco flights
Detroit to Las Vegas flights
Cleveland to Las Vegas flights
Seattle to San Francisco flights
Dulles Intl to San Francisco flights
San Jose to Las Vegas flights
Dallas/Fort Worth to Ontario flights
Austin to Las Vegas flights
Burbank to Las Vegas flights
San Francisco to Ontario flights
Santa Ana to San Francisco flights

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$68Average$166FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$118Average$340FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$121Average$365FlexibilityNo cancel feeOn-time75%
DeltaCheapest$179Average$435FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights