SFO - IDA

$101 Find Cheap Flights from San Francisco to Idaho Falls - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Idaho Falls departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$183
Typical prices: $396-$733
Multiple Airlines
Thu 9/17Mon 9/21
SFO - IDA • 1 stop
Cheapest one-way
$101
Typical prices: $45-$659
Multiple Airlines
Thu 8/20
SFO - IDA • 1 stop
Top airlines
Cheapest • from $303 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Idaho Falls. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $377 (round-trip)
Shortest trip • 4h 06m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 49% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Idaho Falls (SFO-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Idaho Falls

Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
10:24 pm - 12:04 pm
SFO
-
IDA
12h 40m
1 stop
Multiple Airlines Logo
6:21 pm - 8:14 am
IDA
-
SFO
14h 53m
1 stop
$183Multiple Airlines
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
9:00 am - 12:04 pm
SFO
-
IDA
26h 04m
2 stops
Multiple Airlines Logo
6:21 pm - 8:14 am
IDA
-
SFO
14h 53m
1 stop
$195Multiple Airlines
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
11:00 am - 10:47 am
SFO
-
IDA
22h 47m
1 stop
Multiple Airlines Logo
5:33 pm - 7:56 pm
IDA
-
SFO
27h 23m
1 stop
$203Multiple Airlines
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
10:24 pm - 12:04 pm
SFO
-
IDA
12h 40m
1 stop
Multiple Airlines Logo
6:21 pm - 8:14 am
IDA
-
SFO
14h 53m
1 stop
$206Multiple Airlines
Tue, Nov 10 - Sat, Nov 14
Alaska Airlines Logo
8:56 pm - 1:16 pm
SFO
-
IDA
15h 20m
1 stop
Alaska Airlines Logo
3:54 pm - 7:48 pm
IDA
-
SFO
4h 54m
1 stop
$303Alaska Airlines
Tue, Sep 15 - Tue, Sep 22
Alaska Airlines Logo
7:23 am - 1:24 pm
SFO
-
IDA
5h 01m
1 stop
Alaska Airlines Logo
3:57 pm - 7:54 pm
IDA
-
SFO
4h 57m
1 stop
$303Alaska Airlines
Mon, Sep 7 - Thu, Sep 10
Delta Logo
5:50 am - 10:50 am
SFO
-
IDA
4h 00m
1 stop
Delta Logo
6:57 pm - 11:01 pm
IDA
-
SFO
5h 04m
1 stop
$321Delta
Wed, Sep 9 - Tue, Sep 15
Delta Logo
5:19 pm - 10:22 pm
SFO
-
IDA
4h 03m
1 stop
Delta Logo
6:00 am - 9:00 am
IDA
-
SFO
4h 00m
1 stop
$321Delta
Wed, Sep 9 - Tue, Sep 15
Delta Logo
5:19 pm - 10:22 pm
SFO
-
IDA
4h 03m
1 stop
Delta Logo
6:57 pm - 11:59 pm
IDA
-
SFO
6h 02m
1 stop
$321Delta
Sat, Aug 29 - Sat, Sep 5
Alaska Airlines Logo
7:23 am - 1:24 pm
SFO
-
IDA
5h 01m
1 stop
Alaska Airlines Logo
3:57 pm - 9:07 am
IDA
-
SFO
18h 10m
1 stop
$323Alaska Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Idaho Falls flights

Get data-powered insights and trends into flights from San Francisco to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Idaho Falls is January, where tickets cost $238 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $598 and $566 respectively.

Good to know

Low season

March

Cheapest flight

$101
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from San Francisco to Idaho Falls

When to book flights from San Francisco to Idaho Falls

Are your dates flexible? Find out the best times to travel from San Francisco to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Idaho Falls

  • What is the cheapest flight from San Francisco to Idaho Falls?

    In the last 5 days, the lowest price for a flight from San Francisco to Idaho Falls was $101 for a one-way ticket and $183 for a round-trip.

  • Do I need a passport to fly between San Francisco and Idaho Falls?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from San Francisco to Idaho Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Idaho Falls?

    oneworld, and SkyTeam are the airline alliances operating flights between San Francisco and Idaho Falls, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from San Francisco to Idaho Falls, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to Idaho Falls are Alaska Airlines and Delta. With an average price for the route of $447 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $494 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Francisco to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from San Francisco to Idaho Falls?

    In the past 5 days, the cheapest round-trip tickets from San Francisco to Idaho Falls were found on Alaska Airlines ($303) and Delta ($321).

Reviews of the top airlines flying from San Francisco to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12755 reviews
8.5Crew
8.1Boarding
7.8Comfort
7.0Food
7.0Entertainment
Airline reviews

Poor transfer conditions at LAX almost missed flight. Long walk and delayed shuttle ..avoid at all costs

8.0 ExcellentAnonymous, Aug 2026
SFO - LAX
Read more Alaska Airlines reviews

Poor transfer conditions at LAX almost missed flight. Long walk and delayed shuttle ..avoid at all costs

The plane was freezing. A few other customers mentioned how they can’t get their temperature right on their flights lately.

The food was fine, I was in economy so wasn’t expecting more. Would have liked an entree like pasta/lasagna. Entertainment/movies were ok. I have Apple TV & HBO so I was searching for new releases. But these are just my preferences for food & entertainment. The flight was good. I like the design of your seat backs/tray tables with the extra cup holder and screen holders

Quick, easy, on time. I couldn't ask for more great staff

The app booked me on a flight for July 1st as opposed to August 1st like it was supposed to be. No problem with Alaska Airlines, except they took a while to refund my money. But it was as taken instantly. So, yeah.

Not able to get boarding pass for domestic connection flight when check in at international airport. I was told I need to get connection flight boarding pass after I entered US. It us very inconvenient.

They called me 2 hours before my original flight from SFO was to depart to let me know it was delayed and that I would miss my connection. They then rebooked on a different flight leaving a half hour earlier to a different connecting airport, so that I would not miss my connection. It all worked out and I arrived at my destination without a problem and 15 minutes earlier than the original flight would have. Nice!

The crew was great and everything went smoothly coming and going.

Flight crew and flight were good. But it departed two hours late.

Nobody’s fault but turbulence all the way meant no service and no access to the bathroom,

Internet connectivity still seems to be touchy on these flights, making it difficult to rely on it for getting work done.

Crew was absolutely fantastic and we’re so welcoming and friendly ❤️

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

Everything you need to know for your flight from San Francisco to Idaho Falls

Information on your arrival and departure airports