HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$160+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — IDA
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 18, 2026.

This Delta deal was found by Cheapflights users on 2/16. 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.
Sat 3/145:40 am
SFO
-
IDA
1 stop5h 47m
Delta
Sat 3/211:10 pm
IDA
-
SFO
1 stop3h 57m
Delta
Deal found 2/16$251
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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 11/39:15 am
SFO
-
IDA
1 stop5h 14m
Alaska Airlines
Sat 11/74:00 pm
IDA
-
SFO
1 stop4h 49m
Alaska Airlines
Deal found 2/15$305
This Alaska Airlines deal was found by Cheapflights users on 2/16. 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.
Mon 3/97:28 pm
SFO
-
IDA
1 stop27h 08m
Alaska Airlines
Mon 3/165:20 pm
IDA
-
SFO
1 stop5h 35m
Alaska Airlines
Deal found 2/16$309
This Alaska Airlines deal was found by Cheapflights users on 2/18. 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 3/174:21 pm
SFO
-
IDA
1 stop23h 58m
Alaska Airlines
Tue 3/245:59 pm
IDA
-
SFO
1 stop5h 28m
Alaska Airlines
Deal found 2/18$311
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/510:48 am
SFO
-
IDA
1 stop27h 43m
Multiple Airlines
Mon 3/910:30 pm
IDA
-
SFO
2 stops26h 58m
Multiple Airlines
Deal found 2/18$314
This Delta deal was found by Cheapflights users on 2/16. 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 3/25:05 pm
SFO
-
IDA
1 stop4h 16m
Delta
Tue 3/36:35 pm
IDA
-
SFO
1 stop6h 19m
Delta
Deal found 2/16$321
This Alaska Airlines deal was found by Cheapflights users on 2/17. 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.
Mon 5/46:57 pm
SFO
-
IDA
1 stop19h 32m
Alaska Airlines
Fri 5/84:06 pm
IDA
-
SFO
1 stop7h 22m
Alaska Airlines
Deal found 2/17$329
This American Airlines deal was found by Cheapflights users on 2/16. 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.
Sat 4/254:15 pm
SFO
-
IDA
1 stop6h 24m
American Airlines
Mon 4/277:48 am
IDA
-
SFO
2 stops12h 32m
American Airlines
Deal found 2/16$331
This CheapOair deal was found by Cheapflights users on 2/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:52 pm
SFO
-
IDA
1 stop7h 07m
Alaska Airlines
Tue 8/44:14 pm
IDA
-
SFO
1 stop4h 33m
Alaska Airlines
Deal found 2/18$336

Find 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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(Delta)

One-way from

$160
(Alaska Airlines)

Popular in

April

Cheapest in

January

Average price

$492
Provider with most accurate pricing for San Francisco-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Idaho Falls Fanning Field flights.
Search Deals
From San Francisco to Idaho Falls Fanning Field
Search Deals
One-way flight from San Francisco to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 18, 2026.
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

Sat 3/14

5:40 am-12:27 pm

1 stop5h 47m

Idaho Falls Fanning Field

Sat 3/21

1:10 pm-4:07 pm

1 stop3h 57m

$251

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Tue 3/17

4:21 pm-5:19 pm

1 stop23h 58m

Idaho Falls Fanning Field

Tue 3/24

5:59 pm-10:27 pm

1 stop5h 28m

$311

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Thu 3/5

10:48 am-3:31 pm

1 stop27h 43m

Idaho Falls Fanning Field

Mon 3/9

10:30 pm-12:28 am

2 stops26h 58m

$314

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Mon 3/2

5:05 pm-10:21 pm

1 stop4h 16m

Idaho Falls Fanning Field

Tue 3/3

6:35 pm-11:54 pm

1 stop6h 19m

$321

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Mon 5/4

6:57 pm-3:29 pm

1 stop19h 32m

Idaho Falls Fanning Field

Fri 5/8

4:06 pm-9:23 pm

1 stop6h 17m

$329

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Sat 4/25

4:15 pm-11:39 pm

1 stop6h 24m

Idaho Falls Fanning Field

Mon 4/27

7:48 am-7:20 pm

2 stops12h 32m

$331

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Sat 4/25

9:00 am-3:29 pm

1 stop5h 29m

Idaho Falls Fanning Field

Mon 4/27

4:06 pm-10:28 pm

1 stop7h 22m

$366

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Mon 5/4

7:00 am-3:29 pm

1 stop7h 29m

$160

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Sat 2/28

5:45 pm-10:21 pm

1 stop3h 36m

$261

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Sat 2/28

12:47 pm-11:36 pm

2 stops9h 49m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Compare providers for flights from San Francisco to Idaho Falls

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 San Francisco to Idaho Falls in February.
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 San Francisco-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Idaho Falls 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 San Francisco-Idaho Falls 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 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, August is the cheapest month in which you can book a flight from San Francisco to Idaho Falls (average of $84). Flying from San Francisco to Idaho Falls in February is currently the most expensive (average of $318). 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.

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

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 February 18, 2026.
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
11,897 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

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
11,897 reviews
Alaska Airlines
8.0
Very good
11,897 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

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
8,208 reviews
Alaska Airlines
8.0
Very good
11,897 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

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
United Airlines
7.4
Good
9,315 reviews
Alaska Airlines
8.0
Very good
11,897 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

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 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.

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

    Departing from San Francisco to Idaho Falls will take you 5h 47m. The distance between San Francisco and Idaho Falls is about 676 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 flying from San Francisco to Idaho Falls round-trip?

    According to our current data, Delta ($235), Alaska Airlines ($238), and United Airlines ($309) offers the cheapest pricing from San Francisco to Idaho Falls. You may be able to fly from San Francisco to Idaho Falls for 44% less than the average price by searching for these airlines.

  • 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, August is the cheapest month in which you can book a flight from San Francisco to Idaho Falls (average of $84). Flying from San Francisco to Idaho Falls in February is currently the most expensive (average of $318). 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 Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$235Average$396FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$238Average$412FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$309Average$548FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.