To San Antonio

Cheap Flights from Kansas City to San Antonio

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

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Kansas City to San Antonio

Explore current cheapest deals departing from Kansas City to San Antonio

Round trip

Sort by: Cheapest

August 3 - August 16

Cheapest

MCI - San Antonio

$239

$271

Round trip

August 3 - August 11

Best

MCI - San Antonio

$257

$272

Round trip

July 7 - July 20

Earliest

MCI - San Antonio

$238

$279

Round trip

July 14 - July 20

MCI - San Antonio

$257

$279

Round trip

July 21 - August 4

MCI - San Antonio

$229

$279

Round trip

July 7 - August 4

Earliest

MCI - San Antonio

$232

$287

Round trip

August 29 - August 31

MCI - San Antonio

$287

$338

Round trip

August 22 - August 31

MCI - San Antonio

$265

$338

Round trip

August 22 - September 2

MCI - San Antonio

$252

$340

Round trip

August 29 - September 2

MCI - San Antonio

$285

$340

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from Kansas City to San Antonio

For cheap flights from Kansas City to San Antonio, December stands out as the most affordable month, with a median fare of just $164. January also offers competitive pricing, with a median fare of $204. If you are planning a trip in May, the median fare rises to $355.

Right now, fares for flights from Kansas City to San Antonio are typically between $355–$385, with a median of $365. Current fares are above the typical level for this route. Currently, 0% of recent fares are classified as a good price, indicating that deals are not widely available at this time. New deals appear almost daily, so setting up a price alert could be beneficial.

When flying from Kansas City to San Antonio, most itineraries connect at least once. In fact, 0% of recent fares were for direct flights from Kansas City to San Antonio. For the majority of itineraries that involve connections, the typical number of stopovers is 2.

A typical journey from Kansas City to San Antonio takes about 8h 53m, including connections. This duration accounts for the fact that most itineraries on this route involve at least one stopover.

The distance between Kansas City and San Antonio is approximately 1139 kilometers. This classifies the route as a short-haul flight.

How much is a round trip from Kansas City to San Antonio

Regular price: $227 - $391

Prices for flights from Kansas City to San Antonio are currently within the regular range.

The regular price range for flights from Kansas City to San Antonio is between $227 and $391. The current lowest deal is $247 with Frontier Airlines, for travel from August 19 to August 25.

now $247

Low $227

High $391

The cheapest time to fly from Kansas City to San Antonio

The cheapest month to fly from MKC to SAT is December, with a median price of $164. The most expensive month is June, with a median price of $573. Prices are generally lower from January to December.

December

Cheapest

Flights from $164

June

Most Expensive

Flights from $573

Jan

Feb

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Kansas City to San Antonio

Southwest Airlines

Last-minute flights going from Kansas City to San Antonio

Fri, Jun 19

⌛ Last-Minute

MCI - San Antonio

Kansas City (MCI) - San Antonio (SAT)

United Airlines

$377

$573

One-way

Fri, Jun 19

⌛ Last-Minute

MCI - San Antonio

Kansas City (MCI) - San Antonio (SAT)

United Airlines

$358

$573

One-way

Fri, Jun 19

⌛ Last-Minute

MCI - San Antonio

Kansas City (MCI) - San Antonio (SAT)

United Airlines

$416

$573

One-way

Tue, Jun 23

⌛ Last-Minute

MCI - San Antonio

Kansas City (MCI) - San Antonio (SAT)

United Airlines

$344

$494

One-way

Tue, Jun 23

⌛ Last-Minute

MCI - San Antonio

Kansas City (MCI) - San Antonio (SAT)

Alaska Airlines, Inc.

$390

$1,548

One-way

Tue, Jun 23

⌛ Last-Minute

MCI - San Antonio

Kansas City (MCI) - San Antonio (SAT)

Alaska Airlines, Inc.

$389

$1,551

One-way

Biggest price drops on these dates for flights from Kansas City to San Antonio

8 nights

Aug 3 - Aug 11

$257 → $272

6 nights

Jul 14 - Jul 20

$257 → $279

13 nights

Aug 3 - Aug 16

$239 → $271

13%

13 nights

Jul 7 - Jul 20

$238 → $279

17%

Popular Airports to fly from Kansas City to San Antonio

Kansas City - San Antonio route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Kansas City to San Antonio are above the typical level of $365.

📅 Best time to fly

December is historically the cheapest month

Historically, December is the cheapest month to fly from Kansas City to San Antonio, at $164.

⏱️ Flight duration

Connecting flights take 8h 53m on average

Connecting flights from Kansas City to San Antonio typically take 8h 53m.

✈️ Airlines & availability

Connecting flights are dominant on this route

Connecting flights are dominant, with a median of 2 stopovers for this route.

🏆 Airline highlight

Frontier Airlines offers a recent deal at $247

A recent deal on Frontier Airlines for this route was found at $247.

🎯 Booking tip

Deals are frequent for this route

Deals for flights from Kansas City to San Antonio are frequent, with over 1 deal per day.

Kansas City main airports to depart from

Kansas City International (MCI)

Cheapest

Kansas City International Airport is a great option for flights from Kansas City to San Antonio.

📍 ~20 km from Kansas City (reachable by car)

💸 Flights from ~$247

San Antonio main airports to arrive at

San Antonio International (SAT)

Cheapest

San Antonio International Airport is ideal for reaching San Antonio directly from Kansas City.

📍 ~15 km from city center (reachable by car)

💸 Flights from ~$247

Airports nearby San Antonio used as alternative

Austin–Bergstrom International (AUS)

Cheapest

Austin–Bergstrom International offers significantly more direct flight options, making it a feasible alternative.

📍 ~120 km from San Antonio (reachable by car, though traffic can increase travel time).

💸 Flights from ~$131

Corpus Christi International (CRP)

Corpus Christi International provides additional options for travelers heading towards the Gulf Coast.

📍 ~200 km from San Antonio (reachable by car).

💸 Flights from ~$333

Laredo International (LRD)

Laredo International offers reliable domestic service within the US, useful for southern destinations.

📍 ~240 km from San Antonio (reachable by car).

💸 Flights from ~$292

Killeen–Fort Hood Regional (GRK)

Killeen–Fort Hood Regional is an alternative for travelers on the north side of San Antonio.

📍 ~150 km from San Antonio (reachable by car).

💸 Flights from ~$309

Victoria Regional (VCT)

Victoria Regional is geographically closer than some other regional options, but has limited service.

📍 ~180 km from San Antonio (reachable by car).

💸 Flights from ~$389

Business & First Class Flight Deals to San Antonio

San Antonio, United States

36% AI deal score

$3,042

From MCI

Elite

Jul 10

San Antonio, United States

36% AI deal score

$3,072

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 you discover better deals. Setting up price alerts may notify you when fares drop for your desired route.

Booking flights in advance often provides more options and potentially lower prices, though last-minute deals can sometimes appear. Generally, monitoring prices and booking a few months before your trip may be beneficial. Prices can fluctuate, so consistent checking is often useful.

Comparing nearby airports at both your origin and destination can sometimes reveal more affordable flight options. While it may require additional travel time to and from these airports, the potential savings on airfare can be significant. Always factor in the total cost and convenience.

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