SFO - IDA

$120 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 7/15. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights 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, Aug 19 - Sat, Aug 23
Delta Logo
5:03 pm - 10:27 pmSFO-IDA
4h 24m1 stop
Delta Logo
11:20 am - 4:06 pmIDA-SFO
5h 46m1 stop
$247Delta
Find Deal
Tue, Aug 19 - Sat, Aug 23
Alaska Airlines Logo
4:48 pm - 10:39 pmSFO-IDA
28h 51m2 stops
Alaska Airlines Logo
3:57 pm - 8:19 pmIDA-SFO
5h 22m1 stop
$290Alaska Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
Delta Logo
5:08 pm - 10:29 pmSFO-IDA
4h 21m1 stop
Delta Logo
6:00 am - 9:17 amIDA-SFO
4h 17m1 stop
$296Delta
Find Deal
Sat, Jul 26 - Mon, Aug 11
Delta Logo
5:30 am - 10:34 amSFO-IDA
4h 04m1 stop
Delta Logo
6:52 pm - 11:48 pmIDA-SFO
5h 56m1 stop
$301Delta
Find Deal
Tue, Jul 8 - Sat, Jul 12
Delta Logo
5:35 am - 10:34 amSFO-IDA
3h 59m1 stop
Delta Logo
6:52 pm - 10:51 pmIDA-SFO
4h 59m1 stop
$315Delta
Find Deal
Sun, Jul 6 - Tue, Jul 15
Delta Logo
5:35 am - 10:39 amSFO-IDA
4h 04m1 stop
Delta Logo
6:00 am - 5:42 pmIDA-SFO
12h 42m2 stops
$329Delta
Find Deal
Sun, Jul 6 - Sat, Jul 12
Delta Logo
5:35 am - 10:39 amSFO-IDA
4h 04m1 stop
Delta Logo
6:52 pm - 10:51 pmIDA-SFO
4h 59m1 stop
$331Delta
Find Deal
Tue, Aug 19 - Sat, Aug 23
Alaska Airlines Logo
4:48 pm - 10:39 pmSFO-IDA
28h 51m2 stops
Alaska Airlines Logo
6:13 am - 4:57 pmIDA-SFO
11h 44m2 stops
$333Alaska Airlines
Find Deal
Tue, Jul 8 - Tue, Jul 22
United Airlines Logo
10:22 am - 10:51 pmSFO-IDA
11h 29m2 stops
United Airlines Logo
5:00 am - 5:50 pmIDA-SFO
13h 50m2 stops
$493United Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7
United Airlines Logo
4:22 pm - 10:51 pmSFO-IDA
5h 29m1 stop
United Airlines Logo
6:03 pm - 11:10 pmIDA-SFO
6h 07m1 stop
$549United Airlines
Find Deal
Useful Info

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’s the cheapest day of the week to fly from San Francisco to Idaho Falls?

The average price of all round-trip flights from San Francisco to Idaho Falls clicked on KAYAK for each day over the last 12 months.

For San Francisco to Idaho Falls, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Idaho Falls back to San Francisco, the best deals are generally found on Wednesday, with Thursday being the most expensive.

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 June, where tickets cost $309 (return) on average. On the other hand, the most expensive months are April and December, where the average cost of round-trip tickets is $583 and $578 respectively.

Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$120
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 15% 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 3 days, the lowest price for a flight from San Francisco to Idaho Falls was $120 for a one-way ticket and $247 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between San Francisco and Idaho Falls, with SkyTeam 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 $478 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $474 and an overall rating of 8.0.

  • 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.1Boarding
8.5Crew
7.1Entertainment
7.8Comfort
7.1Food
Airline reviews

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

2.0 MediocreDarrilynn, Jun 2025SFO - HNL
Read more Alaska Airlines reviews

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Great, overall. Thicker seat cushion would be nice. My butt hurt the whole flight.

Thicker seat cushion would be nice. My butt hurt the whole flight.

All good! No entertainment on this new plane yet but ok for this short flight. Great on time flight! Thanks

No non-alcoholic drinks available except water and small apple juice cans.

The flight was delayed over two and a half hours thus causing me to miss my best friend’s funeral. All because the flight crew had to get more rest. That was the reason stated. I understand however very unfortunate. Glad everyone is well rested and resting in peace.

All good except both the outbound and return flights were delayed about 1 1/2 hrs.

Not great. My flight was canceled due to a mechanical problem and I could not get rebooked for the same day. I needed to get to my destination yesterday, not today. I was able to book with another airline but it was a layover and ultimately a 1 hour flight took me 12 hours. Normally I like Alaska much more than Southwest, but Southwest came through with a not terrible price for same day.

The plane was late arriving. The Alaska people did a great job of turning it around quickly and getting us off. We took off about 35 minutes after it reached the gate.

I liked the flight attendant named Tyler. He was charismatic and genuine. I like the pilot in my second flight, he was considerate to everyone’s feelings. I liked the people I sat beside. I like the plane size. I like Alaska airlines

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

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

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

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

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.