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$91+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SFO
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 10/47:30 pm
GEG
-
SFO
1 stop15h 25m
Multiple Airlines
Wed 10/73:15 pm
SFO
-
GEG
1 stop24h 19m
Multiple Airlines
Deal found 7/28$189
This Trip.com deal was found by Cheapflights users on 7/29. 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 8/297:05 am
BOI
-
SFO
1 stop4h 54m
Alaska Airlines
Sun 8/303:51 pm
SFO
-
BOI
1 stop6h 09m
Alaska Airlines
Deal found 7/29$198
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/318:33 pm
IDA
-
SFO
1 stop14h 52m
Multiple Airlines
Thu 9/310:59 pm
SFO
-
IDA
1 stop8h 55m
Multiple Airlines
Deal found 7/27$199
This Frontier deal was found by Cheapflights users on 7/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:24 pm
BOI
-
SFO
1 stop11h 54m
Frontier
Tue 8/256:00 am
SFO
-
BOI
1 stop5h 29m
Frontier
Deal found 7/28$200
This Priceline deal was found by Cheapflights users on 7/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:03 am
BOI
-
SFO
1 stop7h 24m
Alaska Airlines
Wed 9/95:37 pm
SFO
-
BOI
1 stop4h 23m
Alaska Airlines
Deal found 7/29$201
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/115:52 pm
BOI
-
SFO
1 stop6h 48m
Alaska Airlines
Sat 9/197:46 pm
SFO
-
BOI
Nonstop1h 41m
Alaska Airlines
Deal found 7/30$202
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 9/102:50 pm
BOI
-
SFO
2 stops22h 35m
Frontier
Thu 9/1710:24 pm
SFO
-
BOI
1 stop14h 31m
Frontier
Deal found 7/27$205
This Trip.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/272:02 pm
GEG
-
SFO
Nonstop2h 17m
Alaska Airlines
Thu 9/33:51 pm
SFO
-
GEG
1 stop6h 47m
Alaska Airlines
Deal found 7/30$206
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:14 am
BOI
-
SFO
Nonstop1h 56m
Alaska Airlines
Wed 9/167:46 pm
SFO
-
BOI
Nonstop1h 41m
Alaska Airlines
Deal found 7/27$207
This Priceline deal was found by Cheapflights users on 7/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:02 pm
GEG
-
SFO
Nonstop2h 17m
Alaska Airlines
Sat 9/2611:12 am
SFO
-
GEG
Nonstop2h 10m
Alaska Airlines
Deal found 7/30$207
This Trip.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/202:02 pm
GEG
-
SFO
Nonstop2h 17m
Alaska Airlines
Mon 8/245:37 pm
SFO
-
GEG
1 stop5h 01m
Alaska Airlines
Deal found 7/30$208
This SmartFares deal was found by Cheapflights users on 7/27. 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.
Thu 9/105:52 pm
BOI
-
SFO
1 stop5h 53m
Alaska Airlines
Thu 9/177:46 pm
SFO
-
BOI
Nonstop1h 41m
Alaska Airlines
Deal found 7/27$209

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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$189
(Kiwi.com)

One-way from

$91
(Trip.com)

Popular in

March

Cheapest in

October

Average price

$253

Good round-trip deal

$367 or less

Good one-way deal

$256 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. 5% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 1, 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

Sat 9/19

4:27 pm-7:54 pm

1 stop4h 27m

San Francisco

Wed 9/23

8:25 am-2:02 pm

1 stop4h 37m

$207
Quickest round-trip

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Wed 9/9

10:14 am-11:10 am

Nonstop1h 56m

San Francisco

Sun 9/13

7:46 pm-10:27 pm

Nonstop1h 41m

$212

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 9/15

6:00 am-12:35 pm

2 stops7h 35m

San Francisco

Tue 9/15

2:00 pm-10:20 pm

2 stops7h 20m

$217

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Wed 9/9

11:30 am-5:05 pm

2 stops6h 35m

San Francisco

Fri 9/11

2:00 pm-10:55 pm

2 stops7h 55m

$222

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Thu 9/17

1:55 pm-7:05 pm

2 stops6h 10m

San Francisco

Mon 9/21

2:00 pm-8:45 pm

1 stop5h 45m

$222

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Mon 9/14

2:45 pm-6:50 pm

1 stop5h 05m

San Francisco

Thu 9/17

2:00 pm-10:55 pm

2 stops7h 55m

$222

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Tue 10/13

7:19 am-9:37 am

1 stop26h 18m

San Francisco

Fri 10/16

1:15 pm-3:22 pm

Nonstop2h 07m

$225

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Tue 9/29

2:02 pm-4:19 pm

Nonstop2h 17m

San Francisco

Sat 10/3

1:15 pm-3:22 pm

Nonstop2h 07m

$227

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 9/8

6:25 am-10:05 am

1 stop4h 40m

San Francisco

Fri 9/11

12:30 pm-8:45 pm

1 stop7h 15m

$232

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 9/15

2:20 pm-9:10 pm

2 stops7h 50m

San Francisco

Tue 9/22

2:00 pm-10:30 pm

1 stop7h 30m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $209). Flying from Idaho to San Francisco in March is currently the most expensive (average of $444). 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 August 1, 2026.

It’s typically best to fly out from Idaho to San Francisco at noon. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.

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 August 1, 2026.

The most flights from USID to SFO are scheduled on a Friday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

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

Airfare is typical for this route at the moment.
Idaho to San Francisco flights typically cost between $198 and $315 in August.
The cheapest round-trip price found within the last 5 days was $198 on Alaska Airlines (Aug 29-Aug 30).

How far ahead should I book a flight from Idaho to San Francisco?

The best time to book flights from Idaho to San Francisco is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 July 25, 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.

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 11.0 mi from the center of San Francisco.

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

    Within the past month, 34 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, Southwest, and Delta fly from Idaho to San Francisco in about 2h 17m. The time it takes to get you to your destination can typically vary by up to 5h 18m. There are 733 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 United Airlines ($73), Alaska Airlines ($78), and Delta ($119).

  • 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 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: ANA (74%), Air New Zealand (51%), United Airlines (48%).

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

    While on average a flight from Idaho to San Francisco is generally $2,773, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Boise Air Term. Gowen Fld - San Francisco), you can expect to pay $187 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 $209). Flying from Idaho to San Francisco in March is currently the most expensive (average of $444). 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
Fairfield
Emeryville
Roseville
Burlingame
Rancho Cordova
San Bruno
Cupertino
Newark
Hayward
San Ramon
Redwood City
San Carlos
Turlock
Vallejo
San Lorenzo
Davis
Vacaville

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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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$68Average$151FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$108Average$380FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$137Average$408FlexibilityNo cancel feeOn-time69%
DeltaCheapest$205Average$421FlexibilityNo cancel feeOn-timeN/A

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