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Cheap flights from San Diego to Casper from $318

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Casper departing on 10/4. 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

United Airlines Logo
11:15 am - 6:47 pmSAN-CPR
6h 32m1 stop
United Airlines Logo
6:00 pm - 10:15 pmCPR-SAN
5h 15m1 stop
$318United Airlines
Find Deal
Sat, Oct 4 - Mon, Oct 6
United Airlines Logo
6:15 am - 6:47 pmSAN-CPR
11h 32m2 stops
United Airlines Logo
6:00 pm - 10:15 pmCPR-SAN
5h 15m1 stop
$324United Airlines
Find Deal
Sat, Oct 4 - Mon, Oct 6
United Airlines Logo
6:15 am - 4:53 pmSAN-CPR
9h 38m2 stops
United Airlines Logo
3:12 pm - 11:41 pmCPR-SAN
9h 29m2 stops
$369United Airlines
Find Deal
Sat, Oct 4 - Mon, Oct 6
United Airlines Logo
8:00 am - 8:17 pmSAN-CPR
11h 17m2 stops
United Airlines Logo
1:32 pm - 11:41 pmCPR-SAN
11h 09m2 stops
$444United Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 13

United Airlines flights from San Diego to Casper

Our best United Airlines deals on San Diego to Casper flight tickets
United Airlines
Oct 4
SAN11:15 amSan Diego
6h 32m
1 stop
CPR6:47 pmCasper Natrona County
Oct 6
CPR6:00 pmCasper Natrona County
5h 15m
1 stop
SAN10:15 pmSan Diego
$318
Find similar
United Airlines
Oct 4
SAN6:15 amSan Diego
11h 32m
2 stops
CPR6:47 pmCasper Natrona County
Oct 6
CPR6:00 pmCasper Natrona County
5h 15m
1 stop
SAN10:15 pmSan Diego
$324
Find similar
United Airlines
Oct 4
SAN6:15 amSan Diego
9h 38m
2 stops
CPR4:53 pmCasper Natrona County
Oct 6
CPR3:12 pmCasper Natrona County
9h 29m
2 stops
SAN11:41 pmSan Diego
$369
Find similar

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 September 15, 2025.
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

Sat 10/4

11:15 am-6:47 pm

1 stop6h 32m

Casper Natrona County

Mon 10/6

6:00 pm-10:15 pm

1 stop5h 15m

$318

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 10/4

6:15 am-6:47 pm

2 stops11h 32m

Casper Natrona County

Mon 10/6

6:00 pm-10:15 pm

1 stop5h 15m

$324

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 10/4

6:15 am-4:53 pm

2 stops9h 38m

Casper Natrona County

Mon 10/6

3:12 pm-11:41 pm

2 stops9h 29m

$369

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 10/11

8:00 am-8:17 pm

2 stops11h 17m

Casper Natrona County

Mon 10/13

1:32 pm-11:41 pm

2 stops11h 09m

$444

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 day to depart on your flight to Casper?

The cheapest day to depart from San Diego to Casper is on a Tuesday when prices can be found for as low as $347. The most expensive day to fly to Casper is Sunday, with ticket prices averaging around $549.

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

The cheapest time of day to fly to Casper is in the afternoon when flights can be purchased for as low as $378. Flights to Casper are more costly in the morning, with an average ticket price of $438. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
There are no direct flights from San Diego to Casper. There are no popular flight routes from San Diego to Casper.
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  • 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 6h 32m.

  • 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 $263Free CancellationRating
7.4
8,929 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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