IDA - SAT

$186 Find Cheap Flights from Idaho Falls to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to San Antonio departing on 2/12. 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 San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to San Antonio, 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 Idaho Falls to San Antonio, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$306
Overall average: $486
Alaska Airlines
Fri 1/30Fri 2/6
IDA - SAT • 1 stop
Cheapest one-way
$186
American Airlines
Thu 2/12
IDA - SAT • 1 stop
When to travel
November
Cheapest • 21% price drop
January
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 San Antonio!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Idaho Falls to San Antonio (IDA-SAT)

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

Fri, Jan 30 - Fri, Feb 6
Alaska Airlines Logo
6:58 pm - 5:45 pm
IDA
-
SAT
21h 47m1 stop
Alaska Airlines Logo
6:46 pm - 6:18 pm
SAT
-
IDA
24h 32m1 stop
$306Alaska Airlines
Wed, Jan 28 - Wed, Feb 11
Delta Logo
5:25 am - 1:48 pm
IDA
-
SAT
7h 23m1 stop
Delta Logo
6:20 pm - 10:57 pm
SAT
-
IDA
5h 37m1 stop
$307Delta
Tue, Jan 27 - Mon, Feb 9
Delta Logo
6:35 pm - 9:50 am
IDA
-
SAT
14h 15m2 stops
Delta Logo
1:03 pm - 5:51 pm
SAT
-
IDA
5h 48m1 stop
$312Delta
Tue, Jan 27 - Wed, Feb 4
Delta Logo
6:35 pm - 9:50 am
IDA
-
SAT
14h 15m2 stops
Delta Logo
7:00 am - 5:51 pm
SAT
-
IDA
11h 51m2 stops
$317Delta
Wed, Jan 28 - Mon, Feb 9
Delta Logo
5:25 am - 1:48 pm
IDA
-
SAT
7h 23m1 stop
Delta Logo
7:00 am - 5:51 pm
SAT
-
IDA
11h 51m2 stops
$338Delta
Mon, Feb 2 - Wed, Feb 4
Delta Logo
6:35 pm - 12:41 am
IDA
-
SAT
5h 06m1 stop
Delta Logo
1:03 pm - 5:51 pm
SAT
-
IDA
5h 48m1 stop
$339Delta
Sat, Jan 31 - Tue, Feb 3
Alaska Airlines Logo
9:00 am - 5:45 pm
IDA
-
SAT
7h 45m1 stop
Alaska Airlines Logo
6:46 pm - 10:59 pm
SAT
-
IDA
29h 13m1 stop
$342Alaska Airlines
Tue, Jan 27 - Mon, Feb 9
Delta Logo
6:35 pm - 9:50 am
IDA
-
SAT
14h 15m2 stops
Delta Logo
7:00 am - 5:51 pm
SAT
-
IDA
11h 51m2 stops
$343Delta
Mon, Feb 2 - Mon, Feb 9
Delta Logo
6:35 pm - 9:50 am
IDA
-
SAT
14h 15m2 stops
Delta Logo
7:35 am - 12:34 pm
SAT
-
IDA
5h 59m1 stop
$344Delta
Mon, Feb 2 - Wed, Feb 4
Delta Logo
6:35 pm - 9:50 am
IDA
-
SAT
14h 15m2 stops
Delta Logo
7:00 am - 5:51 pm
SAT
-
IDA
11h 51m2 stops
$349Delta
Booking Insights

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

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

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

Your flight ticket price will generally be cheaper if you fly to San Antonio on a Saturday and more expensive on a Friday. On your return trip to Idaho Falls, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to San Antonio, 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 Idaho Falls to San Antonio is November, where tickets cost $370 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $570 and $549 respectively.

Good to know

Low seasonJuly
Cheapest flight$186
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Idaho Falls to San Antonio

When to book flights from Idaho Falls to San Antonio

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

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

    In the last 3 days, the lowest price for a flight from Idaho Falls to San Antonio was $186 for a one-way ticket and $306 for a round-trip.

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

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

  • Which airports will I be using when flying from Idaho Falls to San Antonio?

    When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at San Antonio, also known as San Antonio.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Idaho Falls to San Antonio are Delta and United Airlines. With an average price for the route of $439 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 $473 and an overall rating of 7.4.

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

    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 Idaho Falls to San Antonio.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Idaho Falls 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 Idaho Falls to San Antonio?

    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 San Antonio with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and SAT 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 Idaho Falls to San Antonio?

    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 San Antonio from Idaho Falls 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 Idaho Falls to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to San Antonio. 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 Idaho Falls to San Antonio? 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 8005 reviews
8.5Crew
7.9Comfort
7.3Food
7.9Entertainment
8.1Boarding
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Even though we were delayed, we were able to make our connection

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

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.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

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

Information on your arrival and departure airports