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Cheap flights from Casper to San Diego from $298

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Casper to San Diego departing on 6/25. 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
3:15 pm - 8:46 pm
CPR
-
SAN
6h 31m
1 stop
United Airlines Logo
6:35 am - 2:40 pm
SAN
-
CPR
7h 05m
1 stop
$387United Airlines
Sat, Jun 27 - Tue, Jun 30
United Airlines Logo
5:15 am - 12:46 pm
CPR
-
SAN
8h 31m
1 stop
United Airlines Logo
7:00 am - 12:45 pm
SAN
-
CPR
4h 45m
1 stop
$468United Airlines
Wed, Sep 30 - Mon, Oct 5
United Airlines Logo
7:05 am - 2:55 pm
CPR
-
SAN
8h 50m
1 stop
United Airlines Logo
6:20 am - 8:26 pm
SAN
-
CPR
13h 06m
2 stops
$474United Airlines
Sat, Jun 27 - Tue, Jun 30
United Airlines Logo
1:23 pm - 8:46 pm
CPR
-
SAN
8h 23m
1 stop
United Airlines Logo
12:33 pm - 7:15 pm
SAN
-
CPR
5h 42m
1 stop
$746United Airlines
Mon, Jun 22 - Wed, Jun 24
United Airlines Logo
1:23 pm - 5:20 pm
CPR
-
SAN
4h 57m
1 stop
United Airlines Logo
10:49 am - 9:59 pm
SAN
-
CPR
10h 10m
2 stops
$752United Airlines
Mon, Jun 22 - Tue, Jun 23
United Airlines Logo
1:23 pm - 8:46 pm
CPR
-
SAN
8h 23m
1 stop
United Airlines Logo
10:55 am - 9:59 pm
SAN
-
CPR
10h 04m
1 stop
$824United Airlines
Sun, Jun 21 - Tue, Jun 23
United Airlines Logo
9:26 am - 11:54 pm
CPR
-
SAN
15h 28m
2 stops
United Airlines Logo
6:20 am - 7:10 pm
SAN
-
CPR
11h 50m
2 stops
$924United Airlines
Sat, Jun 27 - Tue, Jun 30
United Airlines Logo
1:23 pm - 11:54 pm
CPR
-
SAN
11h 31m
2 stops
United Airlines Logo
10:49 am - 9:59 pm
SAN
-
CPR
10h 10m
2 stops
$1,137United Airlines
Sun, Jun 21 - Tue, Jun 23
United Airlines Logo
7:05 am - 2:55 pm
CPR
-
SAN
8h 50m
1 stop
United Airlines Logo
6:20 am - 9:59 pm
SAN
-
CPR
14h 39m
3 stops
$1,261United Airlines
Mon, Jun 22 - Wed, Jun 24
United Airlines Logo
3:15 pm - 11:54 pm
CPR
-
SAN
9h 39m
2 stops
United Airlines Logo
6:20 am - 9:59 pm
SAN
-
CPR
14h 39m
3 stops
$1,298United Airlines
Mon, Jun 22 - Wed, Jun 24

United Airlines flights from Casper to San Diego

Our best United Airlines deals on Casper to San Diego flight tickets
United Airlines
Jun 27
CPR3:15 pmCasper Natrona County
6h 31m
1 stop
SAN8:46 pmSan Diego
Jun 30
SAN6:35 amSan Diego
7h 05m
1 stop
CPR2:40 pmCasper Natrona County
$387
United Airlines
Sep 30
CPR5:15 amCasper Natrona County
8h 31m
1 stop
SAN12:46 pmSan Diego
Oct 5
SAN7:00 amSan Diego
4h 45m
1 stop
CPR12:45 pmCasper Natrona County
$468
United Airlines
Jun 27
CPR7:05 amCasper Natrona County
8h 50m
1 stop
SAN2:55 pmSan Diego
Jun 30
SAN6:20 amSan Diego
13h 06m
2 stops
CPR8:26 pmCasper Natrona County
$474

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 June 8, 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

Sat 6/27

3:15 pm-8:46 pm

1 stop6h 31m

San Diego

Tue 6/30

6:35 am-2:40 pm

1 stop7h 05m

$387
Quickest round-trip

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Wed 9/30

5:15 am-12:46 pm

1 stop8h 31m

San Diego

Mon 10/5

7:00 am-12:45 pm

1 stop4h 45m

$468

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Sat 6/27

7:05 am-2:55 pm

1 stop8h 50m

San Diego

Tue 6/30

6:20 am-8:26 pm

2 stops13h 06m

$474

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Mon 6/22

1:23 pm-8:46 pm

1 stop8h 23m

San Diego

Wed 6/24

12:33 pm-7:15 pm

1 stop5h 42m

$746

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Mon 6/22

1:23 pm-5:20 pm

1 stop4h 57m

San Diego

Tue 6/23

10:49 am-9:59 pm

2 stops10h 10m

$752

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Sun 6/21

1:23 pm-8:46 pm

1 stop8h 23m

San Diego

Tue 6/23

10:55 am-9:59 pm

1 stop10h 04m

$824

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Sat 6/27

9:26 am-11:54 pm

2 stops15h 28m

San Diego

Tue 6/30

6:20 am-7:10 pm

2 stops11h 50m

$924

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Sun 6/21

1:23 pm-11:54 pm

2 stops11h 31m

San Diego

Tue 6/23

10:49 am-9:59 pm

2 stops10h 10m

$1,137

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Mon 6/22

7:05 am-2:55 pm

1 stop8h 50m

San Diego

Wed 6/24

6:20 am-9:59 pm

3 stops14h 39m

$1,261

CasperSan Diego

CPR - SAN

CPRSAN

Casper Natrona County

Mon 6/22

3:15 pm-11:54 pm

2 stops9h 39m

San Diego

Wed 6/24

6:20 am-9:59 pm

3 stops14h 39m

$1,298

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 22m

Direct flights

None
The fastest flight from Casper to San Diego takes 5h 22m
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 22m 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
9,781 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
Chula Vista
Coronado
El Cajon
Julian
National City
Poway
San Ysidro
La Mesa
Borrego Springs
Lemon Grove
Imperial Beach
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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