When did momondo last update prices for flights from Casper Natrona County Airport to San Antonio Airport?

Prices for flights from Casper Natrona County Airport to San Antonio Airport were last updated today.

How many operators does momondo search for flights from Casper Natrona County Airport to San Antonio Airport?

As of December 2025, there is 1 operator available to choose from for flights from Casper Natrona County Airport to San Antonio Airport.

How old do you have to be to fly from Casper Natrona County Airport to San Antonio Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Casper Natrona County Airport to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$237 Cheap Flights from Casper to San Antonio in 2025/26

1 adult

0 bags

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Find the cheapest flights from Casper to San Antonio

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:28 am - 4:53 pm

CPR

SAT

4h 25m1 stop

4:45 pm - 8:26 pm

SAT

CPR

4h 41m1 stop

$268United Airlines

Wed, Jan 21 - Wed, Mar 4

5:30 am - 3:31 pm

CPR

SAT

9h 01m2 stops

4:45 pm - 8:26 pm

SAT

CPR

4h 41m1 stop

$274United Airlines

Wed, Jan 21 - Wed, Mar 4

11:28 am - 4:53 pm

CPR

SAT

4h 25m1 stop

1:20 pm - 8:40 pm

SAT

CPR

8h 20m1 stop

$348United Airlines

Sat, Jan 24 - Tue, Jan 27

5:30 am - 1:09 pm

CPR

SAT

6h 39m1 stop

11:43 am - 8:40 pm

SAT

CPR

9h 57m2 stops

$354United Airlines

Sat, Jan 24 - Tue, Jan 27

9:00 am - 4:53 pm

CPR

SAT

6h 53m1 stop

11:43 am - 10:14 pm

SAT

CPR

11h 31m2 stops

$389United Airlines

Fri, Jan 16 - Mon, Jan 19

5:30 am - 1:19 pm

CPR

SAT

6h 49m2 stops

9:58 am - 5:01 pm

SAT

CPR

8h 03m2 stops

$414United Airlines

Wed, Jan 21 - Wed, Mar 4

3:17 pm - 10:57 pm

CPR

SAT

6h 40m2 stops

4:04 pm - 10:14 pm

SAT

CPR

7h 10m2 stops

$454United Airlines

Fri, Jan 16 - Mon, Jan 19

11:28 am - 10:57 pm

CPR

SAT

10h 29m2 stops

2:06 pm - 10:14 pm

SAT

CPR

9h 08m2 stops

$479United Airlines

Fri, Jan 16 - Mon, Jan 19

11:26 am - 4:57 pm

CPR

SAT

4h 31m1 stop

4:43 pm - 12:35 pm

SAT

CPR

20h 52m1 stop

$497United Airlines

Mon, Jan 5 - Fri, Jan 9

1:22 pm - 9:00 pm

CPR

SAT

6h 38m1 stop

7:40 am - 4:54 pm

SAT

CPR

10h 14m2 stops

$690United Airlines

Mon, Jan 5 - Fri, Jan 9

United Airlines flights from Casper to San Antonio

Our best United Airlines deals on Casper to San Antonio flight tickets

United Airlines

Jan 21

CPR11:28 amCasper Natrona County

4h 25m

1 stop

SAT4:53 pmSan Antonio

Mar 4

SAT4:45 pmSan Antonio

4h 41m

1 stop

CPR8:26 pmCasper Natrona County

$268

Find similar

United Airlines

Jan 21

CPR5:30 amCasper Natrona County

9h 01m

2 stops

SAT3:31 pmSan Antonio

Mar 4

SAT4:45 pmSan Antonio

4h 41m

1 stop

CPR8:26 pmCasper Natrona County

$274

Find similar

United Airlines

Jan 16

CPR11:28 amCasper Natrona County

8h 16m

1 stop

SAT8:44 pmSan Antonio

Jan 19

SAT1:20 pmSan Antonio

4h 34m

1 stop

CPR4:54 pmCasper Natrona County

$348

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 1/21

11:28 am-4:53 pm

1 stop4h 25m

San Antonio

Wed 3/4

4:45 pm-8:26 pm

1 stop4h 41m

$268

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 1/21

5:30 am-3:31 pm

2 stops9h 01m

San Antonio

Wed 3/4

4:45 pm-8:26 pm

1 stop4h 41m

$274

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Sat 1/24

11:28 am-4:53 pm

1 stop4h 25m

San Antonio

Tue 1/27

1:20 pm-8:40 pm

1 stop8h 20m

$348

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Sat 1/24

5:30 am-1:09 pm

1 stop6h 39m

San Antonio

Tue 1/27

11:43 am-8:40 pm

2 stops9h 57m

$354

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 1/16

9:00 am-4:53 pm

1 stop6h 53m

San Antonio

Mon 1/19

11:43 am-10:14 pm

2 stops11h 31m

$389

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 1/21

5:30 am-1:19 pm

2 stops6h 49m

San Antonio

Wed 3/4

9:58 am-5:01 pm

2 stops8h 03m

$414

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 1/16

3:17 pm-10:57 pm

2 stops6h 40m

San Antonio

Mon 1/19

4:04 pm-10:14 pm

2 stops7h 10m

$454

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 1/16

11:28 am-10:57 pm

2 stops10h 29m

San Antonio

Mon 1/19

2:06 pm-10:14 pm

2 stops9h 08m

$479

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Mon 1/5

11:26 am-4:57 pm

1 stop4h 31m

San Antonio

Fri 1/9

4:43 pm-12:35 pm

1 stop20h 52m

$497

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Mon 1/5

1:22 pm-9:00 pm

1 stop6h 38m

San Antonio

Fri 1/9

7:40 am-4:54 pm

2 stops10h 14m

$690

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Casper to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Thursday when prices can be found for as low as $293. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Tuesday is $488.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the morning. momondo users have found flights departing from Casper to San Antonio in the morning for as low as $388. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the afternoon, with an average ticket price of $420. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Casper to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Casper to San Antonio according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Casper to San Antonio (CPR to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Casper to San Antonio

Fastest flight time	4h 25m
Direct flights	None

The fastest flight from Casper to San Antonio takes 4h 25m

There are no direct flights from Casper to San Antonio. There are no popular flight routes from Casper to San Antonio.

Search flight deals

How far is Casper Natrona County to San Antonio by plane?
The distance between Casper Natrona County and San Antonio is about 1023.5 mi. Typically, this will take 4h 25m by plane in normal conditions.
When did momondo last update prices for flights from Casper Natrona County Airport to San Antonio Airport?
Prices for flights from Casper Natrona County Airport to San Antonio Airport were last updated today.
How many operators does momondo search for flights from Casper Natrona County Airport to San Antonio Airport?
As of December 2025, there is 1 operator available to choose from for flights from Casper Natrona County Airport to San Antonio Airport.
How old do you have to be to fly from Casper Natrona County Airport to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Casper Natrona County Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Casper to San Antonio?
Based on momondo bookings for flights between Casper and San Antonio, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Casper to San Antonio

Compare and see reviews for airlines that fly from Casper to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 9,102 reviews		Search United Airlines flights

New Braunfels

Kerrville

Boerne

Schertz

Pleasanton

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Can I find flights from Casper to San Antonio with flexible booking policies on momondo?

Yes. All flights to San Antonio from Casper on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Casper to San Antonio?

Once you have performed a search for Casper to San Antonio flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Casper to San Antonio right now. Can momondo alert me if prices change?

Price alerts on flights to San Antonio from Casper are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.