SAT - IDA

$391 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 9/20. 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

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
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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

Wed, Nov 5 - Wed, Dec 3
American Airlines Logo
8:34 am - 1:28 pmSAT-IDA
5h 54m1 stop
American Airlines Logo
7:15 am - 10:58 pmIDA-SAT
14h 43m2 stops
$404American Airlines
Find Deal
Wed, Nov 5 - Wed, Dec 3
American Airlines Logo
8:34 am - 1:28 pmSAT-IDA
5h 54m1 stop
American Airlines Logo
1:58 pm - 2:10 pmIDA-SAT
23h 12m1 stop
$419American Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
Delta Logo
6:05 pm - 10:25 pmSAT-IDA
5h 20m1 stop
Delta Logo
6:00 am - 1:32 pmIDA-SAT
6h 32m1 stop
$431Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
7:15 am - 12:26 pmSAT-IDA
6h 11m1 stop
Delta Logo
6:51 pm - 12:19 amIDA-SAT
4h 28m1 stop
$456Delta
Find Deal
Wed, Nov 5 - Wed, Dec 3
United Airlines Logo
11:40 am - 10:52 pmSAT-IDA
12h 12m2 stops
United Airlines Logo
2:45 pm - 10:59 pmIDA-SAT
7h 14m2 stops
$457United Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
United Airlines Logo
5:30 am - 1:33 pmSAT-IDA
9h 03m2 stops
United Airlines Logo
5:00 am - 3:25 pmIDA-SAT
9h 25m2 stops
$482United Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
7:15 am - 12:26 pmSAT-IDA
6h 11m1 stop
Delta Logo
6:51 pm - 2:29 pmIDA-SAT
18h 38m2 stops
$505Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
United Airlines Logo
11:45 am - 8:52 pmSAT-IDA
10h 07m2 stops
United Airlines Logo
10:50 am - 10:35 pmIDA-SAT
10h 45m2 stops
$532United Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
United Airlines Logo
9:06 am - 5:18 pmSAT-IDA
9h 12m1 stop
United Airlines Logo
5:00 am - 1:15 pmIDA-SAT
7h 15m2 stops
$538United Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
United Airlines Logo
11:45 am - 8:52 pmSAT-IDA
10h 07m2 stops
United Airlines Logo
5:00 am - 1:15 pmIDA-SAT
7h 15m2 stops
$546United Airlines
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $404 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 22% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$404
Overall average: $525
American Airlines
Wed 11/5Wed 12/3
SAT - IDA • 1 stop
Cheapest one-way
$391
Typical prices: $355-407
United Airlines
Sat 9/20
SAT - IDA • 1 stop
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!
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 January, where tickets cost $420 (return) on average. On the other hand, the most expensive months are September and March, where the average cost of round-trip tickets is $714 and $668 respectively.

Good to know

Low seasonFebruary
Cheapest flight$391
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 1% 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 $391 for a one-way ticket and $404 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?

    Star Alliance, oneworld, and SkyTeam 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 $511 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 $540 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 7954 reviews
8.5Crew
7.9Comfort
7.9Entertainment
8.2Boarding
7.3Food
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

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.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

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

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