Idaho

$69+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOI
Jul 12 — Jul 191
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Cheap 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 June 12, 2026.

This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 8/147:25 pm
SFO
-
BOI
Nonstop1h 42m
Alaska Airlines
Sat 8/1510:52 am
BOI
-
SFO
Nonstop1h 57m
Alaska Airlines
Deal found 6/11$183
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:59 pm
SFO
-
BOI
Nonstop1h 56m
United Airlines
Tue 8/47:05 pm
BOI
-
SFO
Nonstop1h 53m
United Airlines
Deal found 6/9$184
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 8/115:50 am
SFO
-
BOI
2 stops9h 20m
Southwest
Thu 8/133:50 pm
BOI
-
SFO
2 stops6h 45m
Southwest
Deal found 6/11$185
This Expedia deal was found by Cheapflights users on 6/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
SFO
-
BOI
1 stop5h 29m
Multiple Airlines
Tue 8/410:52 am
BOI
-
SFO
Nonstop1h 57m
Multiple Airlines
Deal found 6/9$186
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 9/237:46 pm
SFO
-
BOI
Nonstop1h 41m
Alaska Airlines
Tue 9/292:16 pm
BOI
-
SFO
1 stop4h 44m
Alaska Airlines
Deal found 6/12$187
This Trip.com deal was found by Cheapflights users on 6/11. 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 7/297:03 am
SFO
-
BOI
1 stop4h 44m
Alaska Airlines
Tue 8/410:52 am
BOI
-
SFO
Nonstop1h 57m
Alaska Airlines
Deal found 6/11$188
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:25 am
SFO
-
BOI
1 stop6h 20m
Southwest
Mon 8/104:55 pm
BOI
-
SFO
1 stop7h 00m
Southwest
Deal found 6/9$189
This Priceline deal was found by Cheapflights users on 6/11. 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.
Tue 8/116:00 am
SFO
-
BOI
1 stop5h 29m
Multiple Airlines
Thu 8/1310:52 am
BOI
-
SFO
Nonstop1h 57m
Multiple Airlines
Deal found 6/11$190
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 9/57:46 pm
SFO
-
BOI
Nonstop1h 41m
Alaska Airlines
Sun 9/610:14 am
BOI
-
SFO
Nonstop1h 56m
Alaska Airlines
Deal found 6/11$193
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 8/82:40 pm
SFO
-
BOI
1 stop7h 05m
Alaska Airlines
Wed 8/1210:52 am
BOI
-
SFO
Nonstop1h 57m
Alaska Airlines
Deal found 6/11$195
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:03 am
SFO
-
GEG
1 stop4h 33m
Alaska Airlines
Tue 9/82:02 pm
GEG
-
SFO
Nonstop2h 17m
Alaska Airlines
Deal found 6/8$231
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:00 pm
SFO
-
GEG
2 stops8h 15m
Southwest
Sat 9/1911:05 am
GEG
-
SFO
2 stops9h 30m
Southwest
Deal found 6/8$233

Find 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 June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$183
(Alaska Airlines)

One-way from

$69
(Trip.com)

Popular in

May

Cheapest in

January

Average price

$344

Good round-trip deal

$297 or less

Good one-way deal

$158 or less
Provider with most accurate pricing for San Francisco-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for San Francisco-Boise Air Term. Gowen Fld flights.
From San Francisco to Idaho
One-way flight from San Francisco to Idaho
Highest demand for flights based on searches. 11% potential increase in price ($36 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from San Francisco to Idaho.
Price to beat on a one-way flight from San Francisco to Idaho.

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 June 12, 2026.
Use the filters below to find and compare flights from San Francisco to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 9/29

9:03 am-3:30 pm

1 stop5h 27m

Boise Air Term. Gowen Fld

Wed 9/30

10:14 am-11:10 am

Nonstop1h 56m

$187
Quickest round-trip

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 9/5

7:46 pm-10:27 pm

Nonstop1h 41m

Boise Air Term. Gowen Fld

Sun 9/6

10:14 am-11:10 am

Nonstop1h 56m

$193

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 9/19

9:47 am-4:14 pm

1 stop5h 27m

Boise Air Term. Gowen Fld

Sun 9/27

6:40 pm-11:59 pm

1 stop6h 19m

$213

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 9/5

5:16 pm-10:46 pm

1 stop4h 30m

Boise Air Term. Gowen Fld

Sun 9/6

5:15 pm-11:07 pm

1 stop6h 52m

$213

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 8/12

7:25 pm-10:07 pm

Nonstop1h 42m

Boise Air Term. Gowen Fld

Fri 8/14

8:03 am-2:51 pm

1 stop7h 48m

$215

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Fri 8/21

7:46 pm-10:27 pm

Nonstop1h 41m

Boise Air Term. Gowen Fld

Mon 8/24

10:14 am-11:10 am

Nonstop1h 56m

$219

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Thu 9/10

5:37 pm-11:00 pm

1 stop4h 23m

Boise Air Term. Gowen Fld

Sun 9/13

10:14 am-11:10 am

Nonstop1h 56m

$233

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 9/9

10:00 am-4:48 pm

1 stop5h 48m

Boise Air Term. Gowen Fld

Sun 9/13

6:00 am-9:09 am

1 stop4h 09m

$235

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 9/5

5:16 pm-10:46 pm

1 stop4h 30m

Boise Air Term. Gowen Fld

Thu 9/10

11:35 am-4:23 pm

1 stop5h 48m

$237

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

Tue 10/27

8:15 am-2:11 pm

1 stop5h 56m

Spokane

Sat 10/31

4:38 pm-10:44 pm

1 stop6h 06m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 60 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $44). Flying from San Francisco to Idaho in November is currently the most expensive (average of $147). 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 June 12, 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 morning tend to be the most expensive. A flight at noon could potentially save you up to 29% on airfare.

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 June 12, 2026.

The most flights from SFO to USID are scheduled on a Thursday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).

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

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

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 June 8, 2026.

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

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 June 12, 2026.
Read through reviews of airlines operating flights from San Francisco to Idaho, such as Alaska Airlines,Delta, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 11.0 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?

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

    A quick flight from San Francisco to Idaho can take about 5h 27m. Alaska Airlines provides one of the quickest options available for as low as $187. 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 $68 on Hawaiian Airlines. Other airlines that offer cheap prices include Alaska Airlines from $73 and United Airlines from $78 one-way.

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

  • 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 Emirates (80%), Air New Zealand (71%) and Air Canada (71%).

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

    Looking at all options, your cheapest flight can be booked for $117. While the most popular route (San Francisco - Boise Air Term. Gowen Fld) can be booked for $155 on average, our data indicates $301 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, August is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $44). Flying from San Francisco to Idaho in November is currently the most expensive (average of $147). 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.

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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$215FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$128Average$326FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$131Average$446FlexibilityNo cancel feeOn-time69%
DeltaCheapest$214Average$516FlexibilityNo cancel feeOn-timeN/A

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