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Idaho Falls

$109+ Cheap flights from San Francisco to Idaho Falls (SFO - IDA)

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — IDA
juil. 6 — juil. 131
dim. 7/6
dim. 7/13
1 adult, Economy
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Cheap flight deals from San Francisco to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Idaho Falls (IDA). 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 juillet 1, 2025.

Round-trip from

$236
(Alaska Airlines)

One-way from

$109
(Trip.com)

Popular in

April

Cheapest in

June

Average price

$535
From San Francisco to Idaho Falls Fanning Field
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One-way flight from San Francisco to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 5% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 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 San Francisco to Idaho Falls

Cheapest flights from San Francisco to Idaho Falls
Explore the most affordable flight options available from San Francisco to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 1, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/29. 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. 9/29:19 pmSFO - IDA
1 stop17h 01mAlaska Airlines
ven. 9/56:13 amIDA - SFO
1 stop5h 19mAlaska Airlines
Deal found 6/29$236
This Delta deal was found by Cheapflights users on 6/30. 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.
jeu. 8/145:35 amSFO - IDA
1 stop4h 04mDelta
lun. 8/186:52 pmIDA - SFO
1 stop5h 56mDelta
Deal found 6/30$237

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to Idaho Falls 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 juillet 1, 2025.
Use the filters below to find and compare flights from San Francisco to Idaho Falls that are best for you.

Fly from

San Francisco

Fly to

Idaho Falls

Route

Depart

Return

Price

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

mar. 9/2

9:19 pm-3:20 pm

1 stop17h 01m

Idaho Falls Fanning Field

ven. 9/5

6:13 am-10:32 am

1 stop5h 19m

$236

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

jeu. 8/14

5:35 am-10:39 am

1 stop4h 04m

Idaho Falls Fanning Field

lun. 8/18

6:52 pm-11:48 pm

1 stop5h 56m

$237

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

jeu. 8/7

6:37 am-5:04 pm

1 stop9h 27m

$109

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

dim. 9/21

8:00 am-3:20 pm

1 stop6h 20m

$118

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

sam. 9/27

1:30 pm-6:11 pm

1 stop3h 41m

$119

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

mer. 7/23

6:30 am-3:29 pm

1 stop7h 59m

$240

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

lun. 7/14

2:45 pm-10:39 pm

1 stop6h 54m

$260

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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

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

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

Currently, October is the cheapest month in which you can book a flight from San Francisco to Idaho Falls (average of $380). Flying from San Francisco to Idaho Falls in December is currently the most expensive (average of $578). 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 IDA?

Find hourly flight availability from San Francisco to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juillet 1, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Idaho Falls in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Falls. Reviews last updated juillet 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United Airlines from San Francisco to Idaho Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

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

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

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
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

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
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

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 San Francisco to Idaho Falls. 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 San Francisco to Idaho Falls round-trip?

    According to our current data, Alaska Airlines ($236), and Delta ($237) offers the cheapest pricing from San Francisco to Idaho Falls. You may be able to fly from San Francisco to Idaho Falls for 50% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $118. Delta flights start at $119 while deals on United Airlines start at $275 one-way.

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

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

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

    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 Falls.

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

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

    Currently, October is the cheapest month in which you can book a flight from San Francisco to Idaho Falls (average of $380). Flying from San Francisco to Idaho Falls in December is currently the most expensive (average of $578). 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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Top 3 airlines flying from San Francisco to Idaho Falls

Discover the top 3 airlines that operate flights from San Francisco to Idaho Falls. 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 juillet 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$244Average$470FlexibilityNo cancel feeOn-time75%
DeltaCheapest$245Average$466FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$387Average$572FlexibilityNo cancel feeOn-time69%

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