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Cheap flights from Casper to San Diego from $328

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 Diego departing on 8/13. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Casper to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:10 pm - 10:27 pm
CPR
-
SAN
5h 17m
1 stop
United Airlines Logo
6:30 am - 2:36 pm
SAN
-
CPR
7h 06m
1 stop
$328United Airlines
Thu, Aug 13 - Tue, Aug 18
United Airlines Logo
1:26 pm - 7:55 pm
CPR
-
SAN
7h 29m
2 stops
United Airlines Logo
6:30 am - 12:45 pm
SAN
-
CPR
5h 15m
1 stop
$334United Airlines
Thu, Aug 13 - Tue, Aug 18
United Airlines Logo
1:21 pm - 5:16 pm
CPR
-
SAN
4h 55m
1 stop
United Airlines Logo
11:00 am - 8:26 pm
SAN
-
CPR
8h 26m
2 stops
$364United Airlines
Tue, Apr 21 - Sat, Apr 25
United Airlines Logo
3:14 pm - 9:12 pm
CPR
-
SAN
6h 58m
1 stop
United Airlines Logo
11:00 am - 8:17 pm
SAN
-
CPR
8h 17m
1 stop
$408United Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
1:17 pm - 10:37 pm
CPR
-
SAN
10h 20m
2 stops
United Airlines Logo
4:04 pm - 10:10 pm
SAN
-
CPR
5h 06m
1 stop
$414United Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
1:26 pm - 7:55 pm
CPR
-
SAN
7h 29m
2 stops
United Airlines Logo
2:24 pm - 9:58 pm
SAN
-
CPR
6h 34m
2 stops
$419United Airlines
Thu, Aug 13 - Tue, Aug 18
United Airlines Logo
6:13 pm - 10:25 pm
CPR
-
SAN
5h 12m
1 stop
United Airlines Logo
6:35 am - 12:42 pm
SAN
-
CPR
5h 07m
1 stop
$423United Airlines
Fri, Jun 12 - Wed, Jun 17
United Airlines Logo
9:00 am - 5:19 pm
CPR
-
SAN
9h 19m
1 stop
United Airlines Logo
8:54 am - 6:57 pm
SAN
-
CPR
9h 03m
1 stop
$428United Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
9:26 am - 11:54 pm
CPR
-
SAN
15h 28m
2 stops
United Airlines Logo
6:35 am - 12:42 pm
SAN
-
CPR
5h 07m
1 stop
$429United Airlines
Fri, Jun 12 - Wed, Jun 17
United Airlines Logo
9:00 am - 12:47 pm
CPR
-
SAN
4h 47m
1 stop
United Airlines Logo
11:04 am - 10:10 pm
SAN
-
CPR
10h 06m
2 stops
$434United Airlines
Tue, May 5 - Sat, May 9

United Airlines flights from Casper to San Diego

Our best United Airlines deals on Casper to San Diego flight tickets
United Airlines
Aug 13
CPR6:10 pmCasper Natrona County
5h 17m
1 stop
SAN10:27 pmSan Diego
Aug 18
SAN6:30 amSan Diego
7h 06m
1 stop
CPR2:36 pmCasper Natrona County
$328
United Airlines
Aug 13
CPR1:26 pmCasper Natrona County
7h 29m
2 stops
SAN7:55 pmSan Diego
Aug 18
SAN6:30 amSan Diego
5h 15m
1 stop
CPR12:45 pmCasper Natrona County
$334
United Airlines
Apr 21
CPR1:21 pmCasper Natrona County
4h 55m
1 stop
SAN5:16 pmSan Diego
Apr 25
SAN11:00 amSan Diego
8h 26m
2 stops
CPR8:26 pmCasper Natrona County
$364

momondo Fare Finder

 
Customize your flight search to find flights from Casper to San Diego 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 April 10, 2026.
Use the filters below to find and compare flights from Casper to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Thu 8/13

6:10 pm-10:27 pm

1 stop5h 17m

San Diego

Tue 8/18

6:30 am-2:36 pm

1 stop7h 06m

$328

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Thu 8/13

1:26 pm-7:55 pm

2 stops7h 29m

San Diego

Tue 8/18

6:30 am-12:45 pm

1 stop5h 15m

$334

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Tue 4/21

1:21 pm-5:16 pm

1 stop4h 55m

San Diego

Sat 4/25

11:00 am-8:26 pm

2 stops8h 26m

$364

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Tue 5/5

3:14 pm-9:12 pm

1 stop6h 58m

San Diego

Sat 5/9

11:00 am-8:17 pm

1 stop8h 17m

$408

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Tue 5/5

1:17 pm-10:37 pm

2 stops10h 20m

San Diego

Sat 5/9

4:04 pm-10:10 pm

1 stop5h 06m

$414

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Thu 8/13

1:26 pm-7:55 pm

2 stops7h 29m

San Diego

Tue 8/18

2:24 pm-9:58 pm

2 stops6h 34m

$419
Quickest round-trip

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Fri 6/12

6:13 pm-10:25 pm

1 stop5h 12m

San Diego

Wed 6/17

6:35 am-12:42 pm

1 stop5h 07m

$423

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Tue 5/5

9:00 am-5:19 pm

1 stop9h 19m

San Diego

Sat 5/9

8:54 am-6:57 pm

1 stop9h 03m

$428

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Fri 6/12

9:26 am-11:54 pm

2 stops15h 28m

San Diego

Wed 6/17

6:35 am-12:42 pm

1 stop5h 07m

$429

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Tue 5/5

9:00 am-12:47 pm

1 stop4h 47m

San Diego

Sat 5/9

11:04 am-10:10 pm

2 stops10h 06m

$434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

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

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

Can stopping save me money on Casper to San Diego flights?

You could potentially save up to 14% on your flight if you consider stops on a Casper to San Diego flight.

When to book flights from Casper to San Diego

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

Cheap Casper to San Diego (CPR to SAN) flight deals and tips

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

Fastest flight time

5h 12m

Direct flights

None
The fastest flight from Casper to San Diego takes 5h 12m
There are no direct flights from Casper to San Diego. There are no popular flight routes from Casper to San Diego.
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Frequently asked questions about flying from Casper to San Diego

  • How far is Casper Natrona County to San Diego by plane?

    There are 914.3 mi between Casper Natrona County and San Diego. Typically, this will take 5h 12m by plane in normal conditions.

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

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

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

  • How old do you have to be to fly from Casper Natrona County Airport to San Diego 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 Diego Airport.

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

    The travel and health documents required for your trip to San Diego 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 Diego 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 Diego?

Best airlines flying from Casper to San Diego

Compare and see reviews for airlines that fly from Casper to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,562 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Poway
San Ysidro
Imperial Beach
La Mesa
Lemon Grove
Borrego Springs
Alpine
Santee

Why use momondo?

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

It is quick and easy to find Casper to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

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

Flights from Casper to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Casper to San Diego 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 Diego right now. Can momondo alert me if prices change?

Price alerts on flights to San Diego 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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