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$56+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOI
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
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 octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$137
(Delta)

One-way from

$56
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$268

Good round-trip deal

$183 or less

Good one-way deal

$108 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. 14% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 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 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 octubre 16, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/131:20 pmSFO - GEG
1 stop5h 13mDelta
dom. 11/167:15 pmGEG - SFO
1 stop4h 40mDelta
Deal found 10/16$137
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/45:50 amSFO - GEG
1 stop4h 49mDelta
dom. 12/74:35 pmGEG - SFO
1 stop7h 28mDelta
Deal found 10/16$138
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/67:14 pmSFO - BOI
Nonstop1h 44mAlaska Airlines
mié. 12/108:25 amBOI - SFO
Nonstop2h 15mAlaska Airlines
Deal found 10/16$140
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/87:24 pmSFO - BOI
Nonstop1h 44mHawaiian Airlines
dom. 11/98:41 amBOI - SFO
Nonstop1h 59mHawaiian Airlines
Deal found 10/15$141
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.
mar. 11/48:00 amSFO - GEG
1 stop4h 26mAlaska Airlines
mar. 11/42:01 pmGEG - SFO
Nonstop2h 20mAlaska Airlines
Deal found 10/14$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.
jue. 11/1311:29 amSFO - GEG
Nonstop2h 16mAlaska Airlines
dom. 11/166:00 amGEG - SFO
1 stop3h 40mAlaska Airlines
Deal found 10/15$145
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.
mié. 12/317:25 pmSFO - BOI
Nonstop1h 42mAlaska Airlines
lun. 1/58:07 amBOI - SFO
Nonstop2h 19mAlaska Airlines
Deal found 10/14$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.
mié. 11/1211:29 amSFO - GEG
Nonstop2h 16mAlaska Airlines
lun. 11/1712:33 pmGEG - SFO
1 stop4h 49mAlaska Airlines
Deal found 10/15$147
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.
mar. 11/114:39 pmSFO - GEG
1 stop6h 20mAlaska Airlines
jue. 11/132:01 pmGEG - SFO
Nonstop2h 20mAlaska Airlines
Deal found 10/15$149
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.
vie. 11/146:00 amSFO - GEG
1 stop16h 50mDelta
sáb. 11/151:10 pmGEG - SFO
1 stop5h 47mDelta
Deal found 10/15$151
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.
sáb. 12/66:20 pmSFO - BOI
1 stop4h 30mAlaska Airlines
lun. 12/88:25 amBOI - SFO
Nonstop2h 15mAlaska Airlines
Deal found 10/15$155
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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.
lun. 11/37:24 pmSFO - BOI
Nonstop1h 44mAlaska Airlines
mar. 11/48:41 amBOI - SFO
Nonstop1h 59mAlaska Airlines
Deal found 10/13$156

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 octubre 16, 2025.
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 FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

jue. 11/13

1:20 pm-6:33 pm

1 stop5h 13m

Spokane

lun. 11/17

7:15 pm-11:55 pm

1 stop4h 40m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

jue. 11/13

10:30 am-2:53 pm

1 stop4h 23m

Spokane

jue. 11/13

7:15 pm-11:55 pm

1 stop4h 40m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

mié. 11/12

4:37 pm-12:10 am

1 stop7h 33m

Spokane

sáb. 11/15

5:00 am-9:35 am

1 stop4h 35m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

vie. 11/14

5:00 pm-11:59 pm

1 stop6h 59m

Spokane

mar. 11/18

7:15 pm-11:55 pm

1 stop4h 40m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

dom. 11/16

6:00 am-10:39 am

1 stop4h 39m

Spokane

dom. 11/16

7:15 pm-11:55 pm

1 stop4h 40m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

vie. 11/14

5:00 pm-11:59 pm

1 stop6h 59m

Spokane

lun. 11/17

4:43 pm-10:03 pm

1 stop5h 20m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

dom. 12/7

6:00 am-12:10 pm

1 stop6h 10m

Spokane

mié. 12/10

2:46 pm-8:24 pm

1 stop5h 38m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

lun. 11/24

6:00 am-10:39 am

1 stop4h 39m

Spokane

mar. 12/2

4:35 pm-12:03 am

1 stop7h 28m

$137

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

jue. 12/4

5:50 am-10:39 am

1 stop4h 49m

Spokane

dom. 12/7

4:35 pm-12:03 am

1 stop7h 28m

$138

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

mié. 12/31

7:25 pm-10:07 pm

Nonstop1h 42m

Boise Air Term. Gowen Fld

mar. 1/6

8:07 am-9:26 am

Nonstop2h 19m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

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, January is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $43). Flying from San Francisco to Idaho in September is currently the most expensive (average of $137). 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 octubre 16, 2025.

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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 32% 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 October 12, 2025.

Travelers seeking maximum savings on their San Francisco to Idaho flight should consider departing on Tuesday evenings 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 octubre 16, 2025.

The most flights from SFO to USID 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 (12 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 octubre 16, 2025.
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
11,102 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,102 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,781 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,982 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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, 7 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 42m. Delta provides one of the quickest options available for as low as $147. 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 cheapest airlines to fly from San Francisco to Idaho one-way?

    One-way options have recently been found by users for as low as $59 on United Airlines. Other airlines that offer cheap prices include Alaska Airlines from $59 and Frontier from $68 one-way.

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

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

  • 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 Hawaiian Airlines (94%), Alaska Airlines (94%) and Iberia (92%).

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

    Looking at all options, your cheapest flight can be booked for $57. While the most popular route (San Francisco - Spokane) can be booked for $117 on average, our data indicates $248 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, January is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $43). Flying from San Francisco to Idaho in September is currently the most expensive (average of $137). 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

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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 octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$217FlexibilityNo cancel feeOn-time85%
DeltaCheapest$108Average$420FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$140Average$458FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$151Average$351FlexibilityNo cancel feeOn-time75%

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