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$121+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SFO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$240
(Alaska Airlines)

One-way from

$121
(Delta)

Popular in

January

Cheapest in

September

Average price

$289
From Idaho Falls Fanning Field to San Francisco
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One-way flight from Idaho Falls Fanning Field to San Francisco
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Highest demand for flights based on searches. 24% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 11/43:50 pmIDA - SFO
1 stop7h 51mAlaska Airlines
Wed 11/129:00 amSFO - IDA
1 stop5h 13mAlaska Airlines
Deal found 7/30$240
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 8/216:52 pmIDA - SFO
1 stop3h 56mDelta
Mon 8/255:35 amSFO - IDA
1 stop4h 04mDelta
Deal found 7/30$241
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 8/144:13 pmIDA - SFO
1 stop7h 57mUnited Airlines
Mon 8/185:00 amSFO - IDA
1 stop7h 32mUnited Airlines
Deal found 7/30$549

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 July 31, 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

Tue 11/4

3:50 pm-10:41 pm

1 stop7h 51m

San Francisco

Wed 11/12

9:00 am-3:13 pm

1 stop5h 13m

$240

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Thu 8/21

6:52 pm-9:48 pm

1 stop3h 56m

San Francisco

Mon 8/25

5:35 am-10:39 am

1 stop4h 04m

$241

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Thu 8/14

4:13 pm-11:10 pm

1 stop7h 57m

San Francisco

Mon 8/18

5:00 am-1:32 pm

1 stop7h 32m

$549

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Thu 8/21

6:00 am-9:04 am

1 stop4h 04m

$121

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sun 8/31

5:51 pm-12:19 am

1 stop7h 28m

$164

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Wed 8/20

5:00 am-8:10 pm

2 stops16h 10m

$230

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sun 8/31

6:13 am-2:23 pm

2 stops9h 10m

$233

Idaho FallsSan Francisco

IDA - SFO

IDASFO

Idaho Falls Fanning Field

Sat 8/9

7:00 am-6:39 pm

2 stops12h 39m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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, January is the cheapest month in which you can book a flight from Idaho Falls to San Francisco (average of $276). Flying from Idaho Falls to San Francisco in June is currently the most expensive (average of $358). 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 July 31, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Idaho Falls to San Francisco by exploring options for tickets in the morning.

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

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 July 31, 2025.
Read through reviews of airlines operating flights from Idaho Falls to San Francisco, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 Alaska Airlines. Our recent data shows that you can find tickets from as low as $240 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $241 and $549 round-trip. You may be able to fly from Idaho Falls to San Francisco for 51% 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 $121. United Airlines flights start at $230 while deals on Alaska Airlines start at $233 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, January is the cheapest month in which you can book a flight from Idaho Falls to San Francisco (average of $276). Flying from Idaho Falls to San Francisco in June is currently the most expensive (average of $358). 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
Mountain View
Santa Cruz
South San Francisco
Livermore
Turlock
Manteca
Antioch
Hollister
Watsonville
Sunnyvale
Newark
Milpitas
Campbell
Foster City
Capitola
Santa Clara
San Leandro
Burlingame
Redwood City

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Top airline flying from Idaho Falls to San Francisco

Discover the top airline 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$243Average$564FlexibilityNo cancel feeOn-timeN/A

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