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$238+ Cheap flights from Idaho Falls to San Francisco (IDA - SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SFO
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:00 amIDA - SFO
1 stop5h 45mUnited Airlines
Wed 12/318:35 amSFO - IDA
1 stop5h 47mUnited Airlines
Deal found 12/14$605
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:52 pmIDA - SFO
2 stops26h 32mMultiple Airlines
Fri 1/26:00 amSFO - IDA
1 stop9h 12mMultiple Airlines
Deal found 12/14$612
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:05 pmIDA - SFO
1 stop8h 00mUnited Airlines
Sat 12/278:50 pmSFO - IDA
1 stop12h 08mUnited Airlines
Deal found 12/12$633
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:00 amIDA - SFO
1 stop6h 23mAmerican Airlines
Thu 1/13:51 pmSFO - IDA
1 stop5h 30mAmerican Airlines
Deal found 12/13$681
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:30 pmIDA - SFO
1 stop6h 24mUnited Airlines
Thu 1/15:00 amSFO - IDA
1 stop7h 30mUnited Airlines
Deal found 12/13$720
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:00 amIDA - SFO
2 stops7h 41mUnited Airlines
Tue 12/305:00 amSFO - IDA
1 stop7h 30mUnited Airlines
Deal found 12/14$782
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:00 amIDA - SFO
2 stops7h 41mUnited Airlines
Fri 1/22:29 pmSFO - IDA
1 stop7h 30mUnited Airlines
Deal found 12/14$788

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$238
(Alaska Airlines)

Popular in

April

Cheapest in

November

Average price

$599
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
Highest demand for flights based on searches. 4% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 15, 2025.
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

Wed 1/21

9:00 am-3:50 pm

1 stop7h 50m

San Francisco

Wed 1/28

4:46 pm-10:59 pm

1 stop5h 13m

$238

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Tue 2/17

6:25 pm-3:56 pm

2 stops22h 31m

San Francisco

Tue 2/24

9:55 am-5:44 pm

1 stop6h 49m

$261

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sat 2/21

5:25 am-9:30 am

2 stops29h 05m

San Francisco

Wed 2/25

9:55 am-5:44 pm

1 stop6h 49m

$261

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Wed 2/18

6:25 pm-1:48 pm

2 stops20h 23m

San Francisco

Sat 2/21

5:45 pm-10:21 pm

1 stop3h 36m

$261

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Wed 2/18

6:25 pm-3:56 pm

2 stops22h 31m

San Francisco

Wed 2/25

9:55 am-5:44 pm

1 stop6h 49m

$261

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Thu 2/19

6:25 pm-11:54 pm

1 stop6h 29m

San Francisco

Wed 2/25

9:55 am-5:44 pm

1 stop6h 49m

$275

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Wed 2/18

6:25 pm-11:54 pm

1 stop6h 29m

San Francisco

Thu 2/26

9:50 am-5:44 pm

1 stop6h 54m

$275

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Wed 2/18

6:25 pm-11:54 pm

1 stop6h 29m

San Francisco

Sun 2/22

6:00 am-12:27 pm

1 stop5h 27m

$280

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Tue 2/3

9:00 am-3:50 pm

1 stop7h 50m

San Francisco

Sun 2/8

12:00 pm-6:18 pm

1 stop5h 18m

$283

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sat 2/21

5:25 am-9:30 am

2 stops29h 05m

San Francisco

Mon 2/23

5:05 pm-10:21 pm

1 stop4h 16m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 14 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-San Francisco flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 March is currently the most expensive (average of $309). 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 IDA to SFO?

Find hourly flight availability from Idaho Falls 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 December 15, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 52% on flights from Idaho Falls to San Francisco by exploring options for tickets in the morning.

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 December 15, 2025.
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
11,452 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

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
11,452 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

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
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

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 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 Alaska Airlines and Delta fly from Idaho Falls to San Francisco in about 7h 50m. The time it takes to get you to your destination can typically vary by up to 14h 41m. Airlines will cover a distance of 676 mi. This flight may include one or multiple stops.

  • 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 46% 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 $274 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 March is currently the most expensive (average of $309). 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
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Redwood City
Sunnyvale
Santa Clara
San Bruno
Daly City
San Carlos
Vallejo
Hollister
San Ramon
Foster City
Union City
Davis
Emeryville

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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$243Average$473FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$247Average$335FlexibilityNo cancel feeOn-time75%

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