SAT - IDA

$160 Find Cheap Flights from San Antonio 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 Antonio to Idaho Falls departing on 11/23. 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 Antonio 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 Antonio 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 23% 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.

Everything you should know

Cheapest round-trip
$391
Overall average: $660
Alaska Airlines
Tue 4/28Sat 5/2
SAT - IDA • 1 stop
Cheapest one-way
$160
Multiple Airlines
Sun 11/23
SAT - IDA • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $391 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 27% price drop
August
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 Antonio to Idaho Falls (SAT-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio 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 Antonio to Idaho Falls

Tue, Apr 28 - Sat, May 2
Alaska Airlines Logo
7:00 am - 3:20 pmSAT-IDA
9h 20m1 stop
Alaska Airlines Logo
4:00 pm - 11:45 pmIDA-SAT
6h 45m1 stop
$391Alaska Airlines
Find Deal
Tue, Apr 28 - Sat, May 2
Delta Logo
6:05 pm - 10:14 pmSAT-IDA
5h 09m1 stop
Delta Logo
6:10 am - 9:28 pmIDA-SAT
14h 18m2 stops
$397Delta
Find Deal
Tue, Apr 28 - Sat, May 2
Delta Logo
6:30 am - 6:14 pmSAT-IDA
12h 44m2 stops
Delta Logo
6:10 am - 9:28 pmIDA-SAT
14h 18m2 stops
$423Delta
Find Deal
Tue, Nov 11 - Fri, Nov 14
Delta Logo
7:05 am - 12:34 pmSAT-IDA
6h 29m1 stop
Delta Logo
6:57 pm - 12:35 amIDA-SAT
4h 38m1 stop
$431Delta
Find Deal
Tue, Nov 11 - Fri, Nov 14
Delta Logo
11:50 am - 10:19 pmSAT-IDA
11h 29m2 stops
Delta Logo
6:57 pm - 12:35 amIDA-SAT
4h 38m1 stop
$436Delta
Find Deal
Thu, Mar 5 - Thu, Mar 12
United Airlines Logo
5:30 am - 9:28 amSAT-IDA
4h 58m1 stop
United Airlines Logo
2:35 pm - 9:07 pmIDA-SAT
5h 32m1 stop
$584United Airlines
Find Deal
Tue, Nov 11 - Fri, Nov 14
Delta Logo
6:00 am - 6:17 pmSAT-IDA
13h 17m2 stops
Delta Logo
6:00 am - 5:18 pmIDA-SAT
10h 18m2 stops
$586Delta
Find Deal
Thu, Mar 5 - Thu, Mar 12
Alaska Airlines Logo
1:24 pm - 3:23 pmSAT-IDA
26h 59m2 stops
Alaska Airlines Logo
4:00 pm - 5:58 pmIDA-SAT
24h 58m1 stop
$780Alaska Airlines
Find Deal
Thu, Mar 5 - Thu, Mar 12
Alaska Airlines Logo
7:00 am - 10:38 pmSAT-IDA
16h 38m2 stops
Alaska Airlines Logo
8:00 am - 6:21 pmIDA-SAT
9h 21m2 stops
$1,125Alaska Airlines
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from San Antonio 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 Antonio to Idaho Falls?

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

If you are looking for a flight deal from San Antonio to Idaho Falls, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Idaho Falls, Saturday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from San Antonio 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 Antonio 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 Antonio to Idaho Falls is November, where tickets cost $412 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $856 and $843 respectively.

Good to know

Low seasonFebruary
Cheapest flight$160
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from San Antonio to Idaho Falls

When to book flights from San Antonio to Idaho Falls

Are your dates flexible? Find out the best times to travel from San Antonio 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 Antonio to Idaho Falls

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

    In the last 3 days, the lowest price for a flight from San Antonio to Idaho Falls was $160 for a one-way ticket and $391 for a round-trip.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Antonio to Idaho Falls are Delta and United Airlines. With an average price for the route of $477 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $509 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Antonio 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 Antonio to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio 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 Antonio 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 Antonio 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 Antonio with another airline. Booking your flights between San Antonio 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 Antonio 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 Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

 
See real verified KAYAK customer reviews for airlines flying from San Antonio 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 Antonio 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
DeltaOverall score based on 7992 reviews
8.5Crew
7.9Comfort
7.3Food
7.9Entertainment
8.2Boarding
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Overall it was good. I missed my connection but I was put on another flight.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

Food choices were very limited. Taste of the dishes was average.

Everything you need to know for your flight from San Antonio 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.