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$67+ Cheap flights from San Francisco (SFO) to Idaho

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOI
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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Cheap flight deals from San Francisco to Idaho

Keep the following information in mind while searching for San Francisco to Idaho flight deals. Data was last updated January 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$145
(Kiwi.com)

One-way from

$67
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$302

Good round-trip deal

$187 or less

Good one-way deal

$194 or less
Provider with most accurate pricing for San Francisco-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Boise Air Term. Gowen Fld flights.
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From San Francisco to Idaho
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One-way flight from San Francisco to Idaho
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Highest demand for flights based on searches. 5% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from San Francisco to Idaho.
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Price to beat on a one-way flight from San Francisco to Idaho.
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Find flight deals from San Francisco to Idaho

Cheapest flights from San Francisco to Idaho
Explore the most affordable flight options available from San Francisco to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 19, 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.
Wed 2/116:55 am
SFO
-
BOI
1 stop27h 56m
Frontier
Fri 2/2011:56 am
BOI
-
SFO
1 stop21h 07m
Frontier
Deal found 1/18$145
This Alaska Airlines deal was found by Cheapflights users on 1/17. 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 5/163:03 pm
SFO
-
BOI
Nonstop1h 38m
Alaska Airlines
Sat 5/166:49 pm
BOI
-
SFO
Nonstop1h 49m
Alaska Airlines
Deal found 1/17$152
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.
Wed 2/119:00 am
SFO
-
BOI
1 stop5h 10m
Hawaiian Airlines
Thu 2/121:25 pm
BOI
-
SFO
Nonstop2h 01m
Hawaiian Airlines
Deal found 1/18$154
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.
Mon 2/99:00 pm
SFO
-
BOI
Nonstop1h 48m
United Airlines
Thu 2/128:41 am
BOI
-
SFO
Nonstop2h 04m
United Airlines
Deal found 1/19$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.
Wed 2/116:55 am
SFO
-
BOI
1 stop27h 56m
Frontier
Thu 2/1912:36 pm
BOI
-
SFO
1 stop12h 52m
Frontier
Deal found 1/18$163
This Expedia deal was found by Cheapflights users on 1/17. 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.
Mon 2/97:24 pm
SFO
-
BOI
Nonstop1h 45m
Multiple Airlines
Thu 2/1212:36 pm
BOI
-
SFO
1 stop20h 27m
Multiple Airlines
Deal found 1/17$164
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.
Tue 4/1411:13 am
SFO
-
BOI
1 stop7h 35m
Alaska Airlines
Sat 4/187:40 am
BOI
-
SFO
Nonstop2h 00m
Alaska Airlines
Deal found 1/19$167
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.
Tue 3/39:29 am
SFO
-
GEG
Nonstop2h 16m
United Airlines
Tue 3/107:02 am
GEG
-
SFO
Nonstop2h 28m
United Airlines
Deal found 1/18$167
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:30 am
SFO
-
BOI
1 stop7h 28m
Alaska Airlines
Wed 3/118:20 am
BOI
-
SFO
1 stop7h 45m
Alaska Airlines
Deal found 1/18$170
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.
Wed 2/114:55 pm
SFO
-
GEG
Nonstop2h 14m
United Airlines
Sat 2/1412:38 pm
GEG
-
SFO
Nonstop2h 42m
United Airlines
Deal found 1/19$172
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:10 pm
SFO
-
BOI
1 stop3h 49m
Delta
Wed 3/1810:35 am
BOI
-
SFO
1 stop6h 35m
Delta
Deal found 1/19$177
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:34 am
SFO
-
SUN
1 stop5h 48m
Alaska Airlines
Wed 3/1111:52 am
SUN
-
SFO
1 stop4h 56m
Alaska Airlines
Deal found 1/18$177

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Idaho 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 19, 2026.
Use the filters below to find and compare flights from San Francisco to Idaho that are best for you.

Fly from

San Francisco

Fly to

Idaho

Route

Depart

Return

Price

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 3/14

4:22 pm-7:14 pm

Nonstop1h 52m

Boise Air Term. Gowen Fld

Thu 3/19

8:39 am-9:45 am

Nonstop2h 06m

$157

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 2/10

7:24 pm-10:09 pm

Nonstop1h 45m

Boise Air Term. Gowen Fld

Sat 2/14

1:25 pm-2:26 pm

Nonstop2h 01m

$157

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 3/17

8:25 am-11:17 am

Nonstop1h 52m

Boise Air Term. Gowen Fld

Wed 3/18

6:24 am-7:30 am

Nonstop2h 06m

$157

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Fri 4/10

6:56 pm-9:40 pm

Nonstop1h 44m

Boise Air Term. Gowen Fld

Wed 4/15

6:04 pm-10:27 pm

1 stop5h 23m

$167

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 4/15

9:25 am-4:00 pm

1 stop5h 35m

Boise Air Term. Gowen Fld

Mon 4/20

7:40 am-8:40 am

Nonstop2h 00m

$167

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

Wed 2/11

4:55 pm-7:09 pm

Nonstop2h 14m

Spokane

Tue 2/17

7:00 am-9:28 am

Nonstop2h 28m

$167

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 4/15

9:25 am-4:00 pm

1 stop5h 35m

Boise Air Term. Gowen Fld

Sat 4/18

7:40 am-8:40 am

Nonstop2h 00m

$167

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 4/14

11:13 am-7:48 pm

1 stop7h 35m

Boise Air Term. Gowen Fld

Sat 4/18

7:40 am-8:40 am

Nonstop2h 00m

$167

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 3/14

7:31 pm-10:15 pm

Nonstop1h 44m

Boise Air Term. Gowen Fld

Thu 3/19

6:04 pm-11:59 pm

1 stop6h 55m

$167

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 4/14

2:57 pm-10:57 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Sun 4/19

7:40 am-8:40 am

Nonstop2h 00m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

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

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

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

Currently, February is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $74). Flying from San Francisco to Idaho in December is currently the most expensive (average of $155). 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 SFO to ID?

Find hourly flight availability from San Francisco to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 19, 2026.

One of the essential ways to save on airfare from San Francisco to Idaho is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 37% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Idaho. Price data was last updated on January 17, 2026.

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

Weekly flight availability from San Francisco to Idaho

Explore weekly flight availability from San Francisco to Idaho. 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 19, 2026.

The most flights from SFO to USID are scheduled on a Monday (15 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated January 19, 2026.
Read through reviews of airlines operating flights from San Francisco to Idaho, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,760 reviews

Entertainment

7.0

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,760 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Entertainment

7.0

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,077 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Entertainment

7.0

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,829 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Entertainment

7.0

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,179 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Entertainment

7.0

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

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

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Idaho.

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

    Within the past month, 2 users have taken a look at flights from San Francisco to Idaho.

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

    A quick flight from San Francisco to Idaho can take about 1h 45m. United Airlines provides one of the quickest options available for as low as $157. Airlines will cover a distance of 522 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The most popular flight routes from San Francisco to Idaho are San Francisco - Jackson Hole, San Francisco - Boise Air Term. Gowen Fld and San Francisco - Hailey Sun Valley-Friedman.

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

    The top 3 most reliable airlines when flying from San Francisco to Idaho are Air Canada (77%), United Airlines (76%) and SkyWest Airlines (73%).

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

    Looking at all options, your cheapest flight can be booked for $73. While the most popular route (San Francisco - Jackson Hole) can be booked for $340 on average, our data indicates $247 when flying from San Francisco to Idaho.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $74). Flying from San Francisco to Idaho in December is currently the most expensive (average of $155). 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.

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Alternative routes for San Francisco to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from San Francisco to Idaho

Discover the top 4 airlines that operate flights from San Francisco to Idaho. 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 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$68Average$195FlexibilityNo cancel feeOn-time85%
DeltaCheapest$98Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$133Average$444FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$147Average$341FlexibilityNo cancel feeOn-time75%

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