Are direct flights from Sioux Falls to San Antonio always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers. However, connecting flights can sometimes be more affordable, especially if you are willing to spend extra time traveling. The 'best' option often depends on your priorities for cost versus convenience.

Can flexible travel dates help on Sioux Falls to San Antonio flights?

Yes, being flexible with your travel dates can often lead to finding more budget-friendly flights. Prices can vary significantly even within the same week. Shifting your departure or return by a day or two may unlock lower fares.

What extra costs should I check before booking Sioux Falls to San Antonio flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes or making changes to your reservation. Being aware of these can help you calculate the total cost.

Flights From Sioux Falls

To San Antonio

Cheap Flights from Sioux Falls to San Antonio

Browse current best options from Sioux Falls. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Sioux Falls

RatePunk searches hundreds of travel sites at once for deals on flights to San Antonio

Prices updated 6 days ago

454 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Aug 24, 2026.)

Today’s best flight deals from Sioux Falls to San Antonio

Explore current cheapest deals departing from Sioux Falls to San Antonio

2026-10-16 – 2026-11-05
FSD - San Antonio
44% AI deal score
$287
$293
Round trip
2026-11-09 – 2026-12-02
FSD - San Antonio
47% AI deal score
$304
$294
Round trip
2026-09-28 – 2026-10-28
FSD - San Antonio
44% AI deal score
$281
$301
Round trip
2026-10-05 – 2026-10-28
FSD - San Antonio
44% AI deal score
$284
$303
Round trip
2026-10-02 – 2026-10-28
FSD - San Antonio
44% AI deal score
$284
$303
Round trip
2026-11-06 – 2026-12-02
FSD - San Antonio
43% AI deal score
$303
$349
Round trip
2026-10-29 – 2026-11-11
FSD - San Antonio
43% AI deal score
$305
$367
Round trip
2026-11-06 – 2026-11-11
FSD - San Antonio
44% AI deal score
$355
$369
Round trip
2026-10-29 – 2026-11-18
FSD - San Antonio
42% AI deal score
$297
$377
Round trip
2026-11-05 – 2026-12-02
FSD - San Antonio
42% AI deal score
$303
$383
Round trip

Sioux Falls to San Antonio: Overview

Insights for flights from Sioux Falls to San Antonio

Only 3% of recent fares from Sioux Falls to San Antonio were classified as a good price. Right now, fares for cheap flights from Sioux Falls to San Antonio typically range from $335–$383, with a median of $383. Current fares are near the typical level for this route. New deals show up several times a week, so setting up a price alert can help you track fare changes.

When is the cheapest time to fly from Sioux Falls to San Antonio? The data shows that August and September are typically the most affordable months, both with a median fare of $325. October follows closely, with a median fare of $335, making it another good option for budget-conscious travelers.

Most itineraries from Sioux Falls to San Antonio connect at least once, as 0% of recent fares were for non-stop flights. For connecting itineraries, the typical number of stopovers is 2, meaning you should anticipate at least two connections on your journey.

A typical journey from Sioux Falls to San Antonio, including connections, covers a distance of 1570 kilometers. This falls into the category of a medium-haul flight. While the exact flight time can vary based on the number and duration of connections, planning for a multi-leg trip is essential for this route.

How much is a round trip from Sioux Falls to San Antonio

Regular price: $249 - $460

Prices for flights from Sioux Falls to San Antonio are currently within the regular range.

The regular price range for flights from Sioux Falls to San Antonio is between $249 and $460. The current lowest deal is $304 with Frontier Airlines for travel from Oct 16-Nov 5.

now $304

Low $249

High $460

The cheapest time to fly from Sioux Falls to San Antonio

The cheapest month to fly from FSD to SAT is September, with a median price of $335. The most expensive month is December, with a median price of $1486. Prices are generally lower from July to October.

September

Cheapest

Flights from $335

December

Most Expensive

Flights from $1,486

May

Jul

Aug

Sep

Oct

Dec

Direct flights from Sioux Falls to San Antonio

Frontier Airlines

Allegiant Air

United Airlines

American Airlines

Last-minute flights going from Sioux Falls to San Antonio

Wed, Sep 2

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

United Airlines

$459

$481

One-way

Fri, Sep 4

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

Deutsche Luft Hansa

$559

$477

One-way

Wed, Sep 9

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

United Airlines

$366

$426

One-way

Fri, Sep 11

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

American Airlines

$401

$342

One-way

Sun, Sep 13

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

Allegiant Air

$388

$510

One-way

Sun, Sep 13

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

United Airlines

$352

$588

One-way

Biggest price drops on these dates for flights from Sioux Falls to San Antonio

3 nights

Sep 4 - Sep 7

$559 → $477

15%

4 nights

Sep 11 - Sep 15

$401 → $342

15%

4 nights

Oct 7 - Oct 11

$350 → $317

3 nights

Sep 21 - Sep 24

$353 → $352

Popular Airports to fly from Sioux Falls to San Antonio

Sioux Falls - San Antonio route insights

💸 Price insights

Recent fares are near the typical level

Recent fares for Sioux Falls to San Antonio are near the typical level at $304.

📅 Best time to fly

Fly in August, September, or October for best prices

Historically, the cheapest months to fly are August, September, and October, with median prices around $325.

⏱️ Flight duration

Connecting flights are typical for this route

This medium-haul route typically involves connecting flights, with 2 stopovers being common.

✈️ Airlines & availability

Connecting flights are available from multiple airlines

Frontier Airlines, Allegiant Air, United Airlines, and American Airlines offer connecting flights.

🏆 Airline highlight

Frontier Airlines offers the most deals

Frontier Airlines has 64 deals, making it a frequent option for this route.

🎯 Booking tip

Deals appear regularly for this route

Deals for flights from Sioux Falls to San Antonio appear regularly, about every 30 days.

Sioux Falls main airports to depart from

Sioux Falls Regional (FSD)

Cheapest

Sioux Falls Regional Airport is a convenient option for flights from Sioux Falls to San Antonio.

📍 ~4 km from city center (reachable by car)

💸 Flights from ~$250

San Antonio main airports to arrive at

San Antonio International (SAT)

Cheapest

San Antonio International Airport is a convenient arrival choice for flights from Sioux Falls to San Antonio.

📍 ~12 km from San Antonio (reachable by car)

💸 Flights from ~$303

Airports nearby San Antonio used as alternative

Austin–Bergstrom International (AUS)

Cheapest

Austin–Bergstrom International is a major international hub with an extensive flight network, offering many flight options.

📍 ~120 km from San Antonio (reachable by car)

💸 Flights from ~$230

Business & First Class Flight Deals to San Antonio

Alaska Airlines, Inc., +1

Business Class

From FSD

Elite

Oct 04

San Antonio, United States

38% AI deal score

$7,699

Alaska Airlines, Inc., +1

Business Class

From FSD

Elite

Sep 03

San Antonio, United States

38% AI deal score

$7,735

Alaska Airlines, Inc., +1

Business Class

From FSD

Elite

Sep 03

San Antonio, United States

38% AI deal score

$8,246

Alaska Airlines, Inc., +1

Business Class

From FSD

Elite

Sep 03

San Antonio, United States

38% AI deal score

$8,259

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to San Antonio

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can also help uncover better deals. Sometimes, flying on weekdays or during off-peak seasons may result in lower fares.

Booking flights in advance often provides more options and potentially better prices. However, last-minute deals can sometimes appear, though they are less common. Monitoring price trends for your desired travel period may help you decide when to book.

Comparing nearby airports can sometimes reveal additional flight options or different pricing. While it may add to your ground travel, the potential savings on airfare could be significant. It's often worth checking if other airports in the region serve your destination.

Related routes

More routes from Sioux Falls

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Flights to San Antonio from other cities

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Sioux Falls to San Antonio: Overview

Insights for flights from Sioux Falls to San Antonio

How much is a round trip from Sioux Falls to San Antonio

Regular price: $249 - $460

Prices for flights from Sioux Falls to San Antonio are currently within the regular range.

The regular price range for flights from Sioux Falls to San Antonio is between $249 and $460. The current lowest deal is $304 with Frontier Airlines for travel from Oct 16-Nov 5.

now $304

Low $249

High $460

The cheapest time to fly from Sioux Falls to San Antonio

September

Cheapest

Flights from $335

December

Most Expensive

Flights from $1,486

May

Jul

Aug

Sep

Oct

Dec

Direct flights from Sioux Falls to San Antonio

Frontier Airlines

Allegiant Air

United Airlines

American Airlines

Last-minute flights going from Sioux Falls to San Antonio

Wed, Sep 2

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

United Airlines

$459

$481

One-way

Fri, Sep 4

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

Deutsche Luft Hansa

$559

$477

One-way

Wed, Sep 9

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

United Airlines

$366

$426

One-way

Fri, Sep 11

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

American Airlines

$401

$342

One-way

Sun, Sep 13

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

Allegiant Air

$388

$510

One-way

Sun, Sep 13

⌛ Last-Minute

FSD - San Antonio

Sioux Falls (FSD) - San Antonio (SAT)

United Airlines

$352

$588

One-way

Biggest price drops on these dates for flights from Sioux Falls to San Antonio

3 nights

Sep 4 - Sep 7

$559 → $477

15%

4 nights

Sep 11 - Sep 15

$401 → $342

15%

4 nights

Oct 7 - Oct 11

$350 → $317

3 nights

Sep 21 - Sep 24

$353 → $352

Popular Airports to fly from Sioux Falls to San Antonio