IDA - SAT

$367 Find Cheap Flights from Idaho Falls to San Antonio

This is the cheapest round-trip 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 1/22. 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 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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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

Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
1:44 pm - 9:55 pmIDA-SAT
7h 11m1 stop
American Airlines Logo
4:34 pm - 12:20 pmSAT-IDA
20h 46m1 stop
$367American Airlines
Find Deal
Mon, Oct 20 - Wed, Oct 29
Hawaiian Airlines Logo
4:15 pm - 12:04 amIDA-SAT
6h 49m1 stop
Hawaiian Airlines Logo
6:32 am - 3:13 pmSAT-IDA
9h 41m1 stop
$370Hawaiian Airlines
Find Deal
Fri, Oct 17 - Wed, Oct 22
Delta Logo
6:53 pm - 12:31 amIDA-SAT
4h 38m1 stop
Delta Logo
7:30 am - 12:33 pmSAT-IDA
6h 03m1 stop
$371Delta
Find Deal
Mon, Jan 19 - Wed, Jan 28
Delta Logo
6:45 pm - 12:45 amIDA-SAT
5h 00m1 stop
Delta Logo
6:30 am - 6:15 pmSAT-IDA
12h 45m2 stops
$376Delta
Find Deal
Sat, Jan 24 - Wed, Jan 28
Delta Logo
6:00 am - 1:34 pmIDA-SAT
6h 34m1 stop
Delta Logo
12:25 pm - 6:15 pmSAT-IDA
6h 50m1 stop
$377Delta
Find Deal
Sat, Jan 24 - Tue, Jan 27
Delta Logo
6:00 am - 1:34 pmIDA-SAT
6h 34m1 stop
Delta Logo
6:30 am - 6:15 pmSAT-IDA
12h 45m2 stops
$382Delta
Find Deal
Thu, Dec 4 - Mon, Dec 8
United Airlines Logo
2:45 pm - 8:53 pmIDA-SAT
5h 08m1 stop
United Airlines Logo
4:34 pm - 9:12 pmSAT-IDA
5h 38m1 stop
$398United Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
United Airlines Logo
2:45 pm - 10:59 pmIDA-SAT
7h 14m2 stops
United Airlines Logo
4:34 pm - 9:12 pmSAT-IDA
5h 38m1 stop
$404United Airlines
Find Deal
Fri, Jan 23 - Tue, Jan 27
Alaska Airlines Logo
8:00 am - 5:58 pmIDA-SAT
8h 58m1 stop
Alaska Airlines Logo
7:00 pm - 3:23 pmSAT-IDA
21h 23m1 stop
$442Alaska Airlines
Find Deal
Tue, Jan 20 - Sat, Jan 24
Alaska Airlines Logo
8:00 am - 5:58 pmIDA-SAT
8h 58m1 stop
Alaska Airlines Logo
7:00 pm - 3:23 pmSAT-IDA
21h 23m1 stop
$452Alaska Airlines
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $367 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 22% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$367
Overall average: $486
American Airlines
Thu 1/22Mon 1/26
IDA - SAT • 1 stop
Cheapest one-way
Multiple Airlines
Thu 9/18
IDA - SAT • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
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$367
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 16% 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 $367 for a round-trip ticket.

  • 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Idaho Falls and San Antonio, with oneworld 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 $392 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 $485 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 7961 reviews
8.5Crew
7.9Comfort
7.3Food
8.2Boarding
7.9Entertainment
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

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.

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.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

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

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

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

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