SFO - IDA

$112 Find Cheap Flights from San Francisco to Idaho Falls

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 4/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Idaho Falls, as well as popular online travel agencies
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$254
Overall average: $377
Alaska Airlines
Tue 4/28Sat 5/2
SFO - IDA • 1 stop
Cheapest one-way
$112
Multiple Airlines
Sun 4/5
SFO - IDA • 1 stop
Top airlines
Cheapest • from $254 (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 14m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 43% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Tue, Apr 28 - Sat, May 2
Alaska Airlines Logo
7:00 am - 3:29 pm
SFO
-
IDA
7h 29m
1 stop
Alaska Airlines Logo
6:00 am - 10:28 pm
IDA
-
SFO
17h 28m
1 stop
$254Alaska Airlines
Tue, Apr 28 - Sat, May 2
Alaska Airlines Logo
9:00 am - 3:29 pm
SFO
-
IDA
5h 29m
1 stop
Alaska Airlines Logo
6:00 am - 8:14 pm
IDA
-
SFO
15h 14m
1 stop
$267Alaska Airlines
Sun, Jun 14 - Mon, Aug 3
Multiple Airlines Logo
10:24 pm - 4:08 pm
SFO
-
IDA
16h 44m
1 stop
Multiple Airlines Logo
10:47 pm - 1:29 pm
IDA
-
SFO
15h 42m
1 stop
$273Multiple Airlines
Thu, Jun 11 - Mon, Aug 3
Multiple Airlines Logo
10:24 pm - 4:08 pm
SFO
-
IDA
16h 44m
1 stop
Multiple Airlines Logo
10:47 pm - 1:29 pm
IDA
-
SFO
15h 42m
1 stop
$276Multiple Airlines
Mon, Jun 15 - Mon, Aug 3
Multiple Airlines Logo
8:43 am - 4:08 pm
SFO
-
IDA
6h 25m
1 stop
Multiple Airlines Logo
10:47 pm - 1:29 pm
IDA
-
SFO
15h 42m
1 stop
$278Multiple Airlines
Sat, May 9 - Tue, May 12
Delta Logo
5:55 pm - 10:42 pm
SFO
-
IDA
3h 47m
1 stop
Delta Logo
6:54 pm - 12:27 am
IDA
-
SFO
6h 33m
1 stop
$281Delta
Thu, Jun 4 - Mon, Jun 8
Multiple Airlines Logo
7:15 pm - 4:08 pm
SFO
-
IDA
19h 53m
2 stops
Multiple Airlines Logo
10:56 pm - 1:29 pm
IDA
-
SFO
15h 33m
1 stop
$282Multiple Airlines
Tue, Apr 28 - Sat, May 2
Alaska Airlines Logo
7:00 am - 3:29 pm
SFO
-
IDA
7h 29m
1 stop
Alaska Airlines Logo
6:00 am - 9:23 pm
IDA
-
SFO
16h 23m
1 stop
$292Alaska Airlines
Fri, Jun 12 - Mon, Aug 3
Multiple Airlines Logo
8:43 am - 4:08 pm
SFO
-
IDA
6h 25m
1 stop
Multiple Airlines Logo
10:47 pm - 1:29 pm
IDA
-
SFO
15h 42m
1 stop
$298Multiple Airlines
Fri, Jun 12 - Mon, Jun 15
Multiple Airlines Logo
8:43 am - 4:08 pm
SFO
-
IDA
6h 25m
1 stop
Multiple Airlines Logo
10:56 pm - 6:25 pm
IDA
-
SFO
20h 29m
1 stop
$304Multiple 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 March and July, where the average cost of round-trip tickets is $560 and $505 respectively.

Good to know

Low seasonMarch
Cheapest flight$112
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly and prices are also 1% lower on average.
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 3 days, the lowest price for a flight from San Francisco to Idaho Falls was $112 for a one-way ticket and $254 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?

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

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Idaho Falls are Delta and Alaska Airlines. With an average price for the route of $373 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $412 and an overall rating of 7.9.

  • 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.

Reviews of the top 3 airlines serving 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 12052 reviews
8.5Crew
7.8Comfort
7.0Entertainment
8.1Boarding
7.1Food
Airline reviews

Nice crew, healthy snacks and drinks available. Flight to Seattle was short and comfortable.

10.0 ExcellentAnonymous, Feb 2026
SFO - SEA
Read more Alaska Airlines reviews

Nice crew, healthy snacks and drinks available. Flight to Seattle was short and comfortable.

had to be rerouted due to a medical emergency onboard. Alaska crew treated the patient with utmost respect and continued to keep the passengers updated the entire way through, which I appreciate. But it took 4 hours from landing until we were able to be airborne again, causing us to not get into SFO until ~2 am. I understand it was a tough situation for everyone, but that was an indecent wait.

I love Alaska! We arrived on the later side without seat assignments only to find the had oversold the flight by 1. The attendants worked extra hard to find a way for our party of 7 to stay together and we made it on the flight! Loved the free WiFi also!

Delay for switching planes. Then delay after delay (mechanical) after boarding so that we were almost 3 hrs late, getting in at 230am. Crew was good.

The he whole flight was very smooth on every aspects.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

The stewardess are very nice and pleasant, Someone onboard had a medical attention, and they attended that person non-stop all throughout the flight, and yet, did not forget to serve and help other passengers.

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

The flight was excellent and very friendly and helpful staff. Will travel again and recommend to friends. Thank you

Did not have In flight service on my round trip due to turbulence. I did not partake in In flight entertainment. Flight descending into LAX was very turbulent. It would have been nice if the pilot communicated with us during that rough descent into LAX to ease the minds of some of us more nervous flyers.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

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 One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

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

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

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

Information on your arrival and departure airports