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$109+ Cheap flights from Idaho Falls to San Francisco (IDA - 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SFO
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Idaho Falls to San Francisco

Cheapest flights from Idaho Falls to San Francisco
Explore the most affordable flight options available from Idaho Falls to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:20 pm
IDA
-
SFO
1 stop5h 35m
Alaska Airlines
Thu 2/268:42 am
SFO
-
IDA
1 stop7h 01m
Alaska Airlines
Deal found 1/28$333
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Thu 2/197:14 pm
IDA
-
SFO
1 stop14h 03m
Multiple Airlines
Thu 2/2610:48 am
SFO
-
IDA
1 stop27h 42m
Multiple Airlines
Deal found 1/28$346
This Delta deal was found by Cheapflights users on 1/26. 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.
Mon 2/165:25 am
IDA
-
SFO
1 stop4h 35m
Delta
Sat 2/215:45 pm
SFO
-
IDA
1 stop3h 36m
Delta
Deal found 1/26$348
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Fri 5/14:17 pm
IDA
-
SFO
1 stop5h 17m
Multiple Airlines
Sun 5/35:47 pm
SFO
-
IDA
1 stop26h 44m
Multiple Airlines
Deal found 1/27$352
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/1610:31 pm
IDA
-
SFO
2 stops24h 30m
Multiple Airlines
Mon 2/239:03 am
SFO
-
IDA
1 stop5h 28m
Multiple Airlines
Deal found 1/26$362
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/1610:31 pm
IDA
-
SFO
1 stop20h 49m
Multiple Airlines
Sun 2/229:16 pm
SFO
-
IDA
2 stops23h 25m
Multiple Airlines
Deal found 1/26$368
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:20 pm
IDA
-
SFO
1 stop6h 36m
Alaska Airlines
Wed 2/186:30 am
SFO
-
IDA
1 stop16h 06m
Alaska Airlines
Deal found 1/28$402
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:00 am
IDA
-
SFO
1 stop5h 56m
Alaska Airlines
Sun 5/39:10 pm
SFO
-
IDA
1 stop24h 30m
Alaska Airlines
Deal found 1/27$417

Find flight deals from Idaho Falls to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$333
(Alaska Airlines)

One-way from

$109
(Delta)

Popular in

February

Cheapest in

November

Average price

$340
Provider with most accurate pricing for Idaho Falls Fanning Field-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-San Francisco flights.
Search Deals
From Idaho Falls Fanning Field to San Francisco
Search Deals
One-way flight from Idaho Falls Fanning Field to San Francisco
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 January 29, 2026.
Use the filters below to find and compare flights from Idaho Falls to San Francisco that are best for you.

Fly from

Idaho Falls

Fly to

San Francisco

Route

Depart

Return

Price

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Thu 2/19

7:14 pm-8:17 am

1 stop14h 03m

San Francisco

Thu 2/26

10:48 am-3:30 pm

1 stop27h 42m

$346

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Mon 2/16

5:25 am-9:00 am

1 stop4h 35m

San Francisco

Sat 2/21

5:45 pm-10:21 pm

1 stop3h 36m

$348

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Mon 2/16

10:31 pm-10:01 pm

2 stops24h 30m

San Francisco

Mon 2/23

9:03 am-3:31 pm

1 stop5h 28m

$362

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Mon 2/16

10:31 pm-6:20 pm

1 stop20h 49m

San Francisco

Sun 2/22

9:16 pm-9:41 pm

2 stops23h 25m

$368

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Fri 5/1

4:17 pm-8:34 pm

1 stop5h 17m

San Francisco

Sun 5/3

6:41 pm-9:31 pm

2 stops25h 50m

$372

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sat 2/14

5:20 pm-10:56 pm

1 stop6h 36m

San Francisco

Wed 2/18

6:30 am-11:36 pm

1 stop16h 06m

$402

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Wed 2/25

8:00 am-7:47 pm

2 stops12h 47m

San Francisco

Thu 2/26

8:42 am-4:43 pm

1 stop7h 01m

$402

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Thu 4/30

6:00 am-10:56 am

1 stop5h 56m

San Francisco

Sun 5/3

9:10 pm-10:40 pm

1 stop24h 30m

$417

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sun 2/22

7:14 pm-5:58 pm

1 stop23h 44m

San Francisco

Sun 3/8

9:08 pm-9:40 pm

2 stops23h 32m

$436

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sat 3/14

6:55 pm-10:15 pm

1 stop4h 20m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 17 results
1
2

Compare providers for flights from Idaho Falls to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to San Francisco in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Idaho Falls-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Idaho Falls to San Francisco

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

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

Currently, August is the cheapest month in which you can book a flight from Idaho Falls to San Francisco (average of $90). Flying from Idaho Falls to San Francisco in November is currently the most expensive (average of $279). 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.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated January 29, 2026.
Read through reviews of airlines operating flights from Idaho Falls to San Francisco, such as Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,808 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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
11,808 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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
8,127 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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 Idaho Falls to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like Delta fly from Idaho Falls to San Francisco in about 4h 35m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 676 mi.

  • What are the cheapest airlines flying from Idaho Falls to San Francisco round-trip?

    Our cheapest airline available from Idaho Falls to San Francisco is Delta. Our recent data shows that you can find tickets from as low as $240 on this airline. An additional option worth looking into is Alaska Airlines, starting at $247. You may be able to fly from Idaho Falls to San Francisco for 47% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Idaho Falls to San Francisco one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $137. Alaska Airlines flights start at $145 while deals on United Airlines start at $240 one-way.

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Idaho Falls to San Francisco (average of $90). Flying from Idaho Falls to San Francisco in November is currently the most expensive (average of $279). 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 Cruz
Roseville
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Davis
Hollister
Redwood City
Union City

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Alternative routes for Idaho Falls to San Francisco

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Top 2 airlines flying from Idaho Falls to San Francisco

Discover the top 2 airlines that operate flights from Idaho Falls 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$240Average$473FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$247Average$335FlexibilityNo cancel feeOn-time75%

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