HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$335+ Cheap flights from San Antonio to Idaho Falls (SAT - IDA)

SAT — IDA
Oct 9 — Oct 161
Fri 10/9
Fri 10/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Antonio to Idaho Falls

Cheapest flights from San Antonio to Idaho Falls

Mon 11/234:48 pm -
1 stop5h 21m
Fri 11/272:35 pm -
1 stop5h 18m
Deal found 9/6$503
Thu 10/810:34 pm -
1 stop18h 26m
Mon 10/129:33 pm -
2 stops34h 35m
Deal found 9/8$531
Sat 9/194:45 pm -
1 stop5h 33m
Sat 9/265:51 pm -
1 stop5h 07m
Deal found 9/5$598
Mon 11/232:50 pm -
2 stops8h 41m
Fri 11/271:43 pm -
1 stop6h 31m
Deal found 9/6$608
Tue 9/229:10 am -
1 stop5h 19m
Sat 9/265:51 pm -
1 stop5h 07m
Deal found 9/7$616
Fri 11/203:35 pm -
1 stop7h 56m
Fri 11/276:44 am -
1 stop6h 21m
Deal found 9/8$623
Mon 9/283:38 pm -
2 stops24h 42m
Wed 9/302:01 pm -
2 stops23h 38m
Deal found 9/5$649

Find flight deals from San Antonio to Idaho Falls

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$429
(United Airlines)

One-way from

$335
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$338
Provider with most accurate pricing for San Antonio-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Idaho Falls Fanning Field flights.
Search Deals
From San Antonio to Idaho Falls Fanning Field
Search Deals
One-way flight from San Antonio to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San Antonio to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioIdaho Falls

SAT San Antonio - IDA Idaho Falls Fanning Field

SATIDA

San Antonio

Thu 10/8

10:34 pm-4:00 pm

1 stop18h 26m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$335
Quickest round-trip

San AntonioIdaho Falls

SAT San Antonio - IDA Idaho Falls Fanning Field

SATIDA

San Antonio

Sat 1/23

4:45 pm-9:08 pm

1 stop5h 23m

Idaho Falls Fanning Field

Tue 1/26

7:00 am-1:05 pm

1 stop5h 05m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/5

Sorted by cheapest first

Compare providers for flights from San Antonio to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Idaho Falls in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from San Antonio with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

How much does it cost to fly round-trip from San Antonio to Idaho Falls?

Airfare is typical for this route at the moment.

San Antonio to Idaho Falls flights typically cost between $338 and $532 in January.
The cheapest round-trip price found within the last 5 days was $429 on United Airlines (Jan 23-Jan 26).

Reviews of airlines servicing Idaho Falls

Read through reviews of airlines operating flights from San Antonio to Idaho Falls, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,554 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Delta
7.8
Good
8,554 reviews
Delta
7.8
Good
8,554 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
United Airlines
7.4
Good
10,188 reviews
Delta
7.8
Good
8,554 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.

Related info for your journey

  • How long is the flight from San Antonio to Idaho Falls?

    A quick flight from San Antonio to Idaho Falls can take about 5h 23m. United Airlines provides one of the quickest options available for as low as $429. There are 1222 mi between San Antonio and Idaho Falls.

  • What are the cheapest airlines flying from San Antonio to Idaho Falls round-trip?

    Currently priced at $328, Delta will fly you from San Antonio to Idaho Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $338. Delta is 32% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from San Antonio to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on San Antonio to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Idaho Falls.

  • Can I find deals for business class flights from San Antonio to Idaho Falls?

    Yes. Cheapflights offers flight deals from San Antonio to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from San Antonio to Idaho Falls

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$328Average$404FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$338Average$450FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.