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Cheap flights from Casper to San Antonio from $278

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Casper to San Antonio departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Casper to San Antonio

Cheap round-trip flights

United Airlines Logo
5:30 am - 12:45 pmCPR-SAT
6h 15m1 stop
United Airlines Logo
1:41 pm - 6:47 pmSAT-CPR
6h 06m1 stop
$278United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
1:32 pm - 9:29 pmCPR-SAT
6h 57m2 stops
United Airlines Logo
1:41 pm - 6:47 pmSAT-CPR
6h 06m1 stop
$284United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
1:32 pm - 10:35 pmCPR-SAT
8h 03m2 stops
United Airlines Logo
5:30 am - 10:47 amSAT-CPR
6h 17m2 stops
$289United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
9:00 am - 4:53 pmCPR-SAT
6h 53m1 stop
United Airlines Logo
4:43 pm - 8:40 pmSAT-CPR
4h 57m1 stop
$328United Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
United Airlines Logo
7:00 am - 4:40 pmCPR-SAT
8h 40m1 stop
United Airlines Logo
9:58 am - 8:35 pmSAT-CPR
11h 37m2 stops
$334United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
1:25 pm - 11:12 pmCPR-SAT
8h 47m2 stops
United Airlines Logo
9:58 am - 7:02 pmSAT-CPR
10h 04m2 stops
$339United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
1:16 pm - 8:44 pmCPR-SAT
6h 28m1 stop
United Airlines Logo
7:40 am - 10:14 pmSAT-CPR
15h 34m2 stops
$369United Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
United Airlines Logo
1:32 pm - 10:35 pmCPR-SAT
8h 03m2 stops
United Airlines Logo
1:23 pm - 7:17 pmSAT-CPR
6h 54m1 stop
$377United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
1:32 pm - 8:55 pmCPR-SAT
6h 23m1 stop
United Airlines Logo
1:23 pm - 7:17 pmSAT-CPR
6h 54m1 stop
$400United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
3:12 pm - 8:55 pmCPR-SAT
4h 43m1 stop
United Airlines Logo
9:00 am - 12:41 pmSAT-CPR
4h 41m1 stop
$421United Airlines
Find Deal
Fri, Oct 10 - Sun, Oct 12

United Airlines flights from Casper to San Antonio

Our best United Airlines deals on Casper to San Antonio flight tickets
United Airlines
Oct 1
CPR5:30 amCasper Natrona County
6h 15m
1 stop
SAT12:45 pmSan Antonio
Oct 5
SAT1:41 pmSan Antonio
6h 06m
1 stop
CPR6:47 pmCasper Natrona County
$278
Find similar
United Airlines
Oct 1
CPR1:32 pmCasper Natrona County
6h 57m
2 stops
SAT9:29 pmSan Antonio
Oct 5
SAT1:41 pmSan Antonio
6h 06m
1 stop
CPR6:47 pmCasper Natrona County
$284
Find similar
United Airlines
Oct 1
CPR1:32 pmCasper Natrona County
8h 03m
2 stops
SAT10:35 pmSan Antonio
Oct 5
SAT5:30 amSan Antonio
6h 17m
2 stops
CPR10:47 amCasper Natrona County
$289
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Casper to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Casper to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 10/1

5:30 am-12:45 pm

1 stop6h 15m

San Antonio

Sun 10/5

1:41 pm-6:47 pm

1 stop6h 06m

$278

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 10/1

1:32 pm-9:29 pm

2 stops6h 57m

San Antonio

Sun 10/5

1:41 pm-6:47 pm

1 stop6h 06m

$284

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Wed 10/1

1:32 pm-10:35 pm

2 stops8h 03m

San Antonio

Sun 10/5

5:30 am-10:47 am

2 stops6h 17m

$289

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

4:43 pm-8:40 pm

1 stop4h 57m

$328

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Sat 2/28

7:00 am-4:40 pm

1 stop8h 40m

San Antonio

Tue 3/3

9:58 am-8:35 pm

2 stops11h 37m

$334

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Sat 2/28

1:25 pm-11:12 pm

2 stops8h 47m

San Antonio

Tue 3/3

9:58 am-7:02 pm

2 stops10h 04m

$339

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 1/16

1:16 pm-8:44 pm

1 stop6h 28m

San Antonio

Mon 1/19

7:40 am-10:14 pm

2 stops15h 34m

$369

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 10/24

1:32 pm-10:35 pm

2 stops8h 03m

San Antonio

Sun 10/26

1:23 pm-7:17 pm

1 stop6h 54m

$377

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 10/24

1:32 pm-8:55 pm

1 stop6h 23m

San Antonio

Sun 10/26

1:23 pm-7:17 pm

1 stop6h 54m

$400

CasperSan Antonio

CPR - SAT

CPRSAT

Casper Natrona County

Fri 10/10

3:12 pm-8:55 pm

1 stop4h 43m

San Antonio

Sun 10/12

9:00 am-12:41 pm

1 stop4h 41m

$421

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Antonio from

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

Direct flights

None
There are no direct flights from Casper to San Antonio. There are no popular flight routes from Casper to San Antonio.
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  • 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 43m 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?

  • 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?

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 AirlinesPriceFrom $300Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Schertz
Pleasanton

Why use momondo?

Why should I use momondo to find a flight deal from Casper to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Casper to San Antonio. momondo saves you time and could save you money on your trip.

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.

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