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Cheap flights from San Diego to Casper from $275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Casper departing on 3/14. 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 San Diego to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 am - 7:02 pm
SAN
-
CPR
9h 02m
1 stop
United Airlines Logo
9:00 am - 3:00 pm
CPR
-
SAN
7h 00m
1 stop
$338United Airlines
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
4:10 pm - 10:09 pm
SAN
-
CPR
4h 59m
1 stop
United Airlines Logo
3:15 pm - 11:40 pm
CPR
-
SAN
9h 25m
2 stops
$344United Airlines
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
7:00 am - 12:35 pm
SAN
-
CPR
4h 35m
1 stop
United Airlines Logo
6:01 pm - 10:28 pm
CPR
-
SAN
5h 27m
1 stop
$459United Airlines
Sun, Jul 12 - Sat, Jul 18
United Airlines Logo
6:30 am - 10:12 pm
SAN
-
CPR
14h 42m
2 stops
United Airlines Logo
6:01 pm - 10:28 pm
CPR
-
SAN
5h 27m
1 stop
$485United Airlines
Sun, Jul 12 - Sat, Jul 18
United Airlines Logo
6:30 am - 10:12 pm
SAN
-
CPR
14h 42m
2 stops
United Airlines Logo
1:25 pm - 11:44 pm
CPR
-
SAN
11h 19m
2 stops
$560United Airlines
Sun, Jul 12 - Sat, Jul 18

United Airlines flights from San Diego to Casper

Our best United Airlines deals on San Diego to Casper flight tickets
United Airlines
Feb 24
SAN9:00 amSan Diego
4h 40m
1 stop
CPR2:40 pmCasper Natrona County
Feb 28
CPR9:00 amCasper Natrona County
7h 00m
1 stop
SAN3:00 pmSan Diego
$338
United Airlines
Feb 24
SAN9:00 amSan Diego
7h 01m
1 stop
CPR5:01 pmCasper Natrona County
Feb 28
CPR3:15 pmCasper Natrona County
9h 25m
2 stops
SAN11:40 pmSan Diego
$344
United Airlines
Jul 12
SAN7:00 amSan Diego
4h 35m
1 stop
CPR12:35 pmCasper Natrona County
Jul 18
CPR6:01 pmCasper Natrona County
5h 27m
1 stop
SAN10:28 pmSan Diego
$459

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Casper 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 January 29, 2026.
Use the filters below to find and compare flights from San Diego to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Tue 2/24

9:00 am-7:02 pm

1 stop9h 02m

Casper Natrona County

Sat 2/28

9:00 am-3:00 pm

1 stop7h 00m

$338

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Tue 2/24

4:10 pm-10:09 pm

1 stop4h 59m

Casper Natrona County

Sat 2/28

3:15 pm-11:40 pm

2 stops9h 25m

$344

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sun 7/12

7:00 am-12:35 pm

1 stop4h 35m

Casper Natrona County

Sat 7/18

6:01 pm-10:28 pm

1 stop5h 27m

$459

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sun 7/12

6:30 am-10:12 pm

2 stops14h 42m

Casper Natrona County

Sat 7/18

6:01 pm-10:28 pm

1 stop5h 27m

$485

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sun 7/12

6:30 am-10:12 pm

2 stops14h 42m

Casper Natrona County

Sat 7/18

1:25 pm-11:44 pm

2 stops11h 19m

$560

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 3/14

6:30 am-12:50 pm

1 stop5h 20m

$275

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 3/14

11:03 am-8:36 pm

2 stops8h 33m

$281

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 airline that flies from San Diego to Casper Natrona County?

United Airlines is the most popular carrier operating from San Diego to Casper Natrona County

When to book flights from San Diego to Casper

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

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

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

Fastest flight time

4h 35m

Direct flights

None
The fastest flight from San Diego to Casper takes 4h 35m
There are no direct flights from San Diego to Casper. There are no popular flight routes from San Diego to Casper.
Search flight deals

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

    The distance between San Diego and Casper Natrona County is about 914.3 mi. In terms of flight time, this usually takes a little over 4h 35m.

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

    Prices for flights from San Diego Airport to Casper Natrona County Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Casper Natrona County Airport.

  • What documentation or ID do you need to fly to Casper Natrona County Airport?

    The necessary travel and health documents for your Casper Natrona County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Diego to Casper?

Best airlines flying from San Diego to Casper

Compare and see reviews for airlines that fly from San Diego to Casper with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $308Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins
Evansville
Douglas

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

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

Yes. momondo enables you to select and highlight flights to Casper from San Diego with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Diego to Casper.

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

If you are simply researching potential flights to Casper, momondo offers a useful price alert feature which will track prices for flights to Casper from San Diego and alert you when they change.

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