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Cheap flights from San Diego to Casper from $308

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 8/4. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
6:35 am - 12:42 pm
SAN
-
CPR
5h 07m
1 stop
United Airlines Logo
8:45 am - 2:50 pm
CPR
-
SAN
7h 05m
1 stop
$308United Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
4:07 pm - 9:59 pm
SAN
-
CPR
4h 52m
1 stop
United Airlines Logo
5:15 am - 12:13 pm
CPR
-
SAN
7h 58m
2 stops
$314United Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
8:45 am - 5:24 pm
SAN
-
CPR
7h 39m
1 stop
United Airlines Logo
8:45 am - 5:10 pm
CPR
-
SAN
9h 25m
1 stop
$388United Airlines
Wed, Aug 5 - Wed, Sep 23
United Airlines Logo
12:33 pm - 9:59 pm
SAN
-
CPR
8h 26m
1 stop
United Airlines Logo
1:26 pm - 8:02 pm
CPR
-
SAN
7h 36m
2 stops
$394United Airlines
Wed, Aug 5 - Wed, Sep 23
United Airlines Logo
1:31 pm - 10:12 pm
SAN
-
CPR
7h 41m
2 stops
United Airlines Logo
9:10 am - 5:17 pm
CPR
-
SAN
9h 07m
2 stops
$399United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:24 pm - 9:59 pm
SAN
-
CPR
6h 35m
2 stops
United Airlines Logo
1:26 pm - 7:55 pm
CPR
-
SAN
7h 29m
2 stops
$404United Airlines
Fri, Aug 21 - Mon, Aug 24
United Airlines Logo
6:35 am - 2:40 pm
SAN
-
CPR
7h 05m
1 stop
United Airlines Logo
6:13 pm - 10:25 pm
CPR
-
SAN
5h 12m
1 stop
$521United Airlines
Mon, Aug 3 - Sun, Aug 9
United Airlines Logo
6:35 am - 12:42 pm
SAN
-
CPR
5h 07m
1 stop
United Airlines Logo
8:45 am - 2:55 pm
CPR
-
SAN
7h 10m
1 stop
$536United Airlines
Fri, Jul 17 - Tue, Jul 21
United Airlines Logo
6:35 am - 12:42 pm
SAN
-
CPR
5h 07m
1 stop
United Airlines Logo
1:23 pm - 7:51 pm
CPR
-
SAN
7h 28m
2 stops
$602United Airlines
Fri, Jul 17 - Tue, Jul 21
United Airlines Logo
6:20 am - 5:34 pm
SAN
-
CPR
10h 14m
2 stops
United Airlines Logo
6:13 pm - 10:25 pm
CPR
-
SAN
5h 12m
1 stop
$623United Airlines
Mon, Aug 3 - Sun, Aug 9

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United Airlines flights from San Diego to Casper

Our best United Airlines deals on San Diego to Casper flight tickets
United Airlines
Aug 4
SAN6:35 amSan Diego
5h 07m
1 stop
CPR12:42 pmCasper Natrona County
Aug 11
CPR8:45 amCasper Natrona County
7h 05m
1 stop
SAN2:50 pmSan Diego
$308
United Airlines
Aug 4
SAN4:07 pmSan Diego
4h 52m
1 stop
CPR9:59 pmCasper Natrona County
Aug 11
CPR5:15 amCasper Natrona County
7h 58m
2 stops
SAN12:13 pmSan Diego
$314
United Airlines
Aug 5
SAN8:45 amSan Diego
7h 39m
1 stop
CPR5:24 pmCasper Natrona County
Sep 23
CPR8:45 amCasper Natrona County
9h 25m
1 stop
SAN5:10 pmSan Diego
$388

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 July 6, 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

Cheapest round-trip
Quickest round-trip

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Tue 8/4

6:35 am-12:42 pm

1 stop5h 07m

Casper Natrona County

Tue 8/11

8:45 am-2:50 pm

1 stop7h 05m

$308

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Tue 8/4

4:07 pm-9:59 pm

1 stop4h 52m

Casper Natrona County

Tue 8/11

5:15 am-12:13 pm

2 stops7h 58m

$314

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Wed 8/5

8:45 am-5:24 pm

1 stop7h 39m

Casper Natrona County

Wed 9/23

8:45 am-5:10 pm

1 stop9h 25m

$388

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Wed 8/5

12:33 pm-9:59 pm

1 stop8h 26m

Casper Natrona County

Wed 9/23

1:26 pm-8:02 pm

2 stops7h 36m

$394

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Tue 10/27

1:31 pm-10:12 pm

2 stops7h 41m

Casper Natrona County

Sat 10/31

9:10 am-5:17 pm

2 stops9h 07m

$399

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Fri 8/21

2:24 pm-9:59 pm

2 stops6h 35m

Casper Natrona County

Mon 8/24

1:26 pm-7:55 pm

2 stops7h 29m

$404

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Mon 8/3

6:35 am-2:40 pm

1 stop7h 05m

Casper Natrona County

Sun 8/9

6:13 pm-10:25 pm

1 stop5h 12m

$521

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Fri 7/17

6:35 am-12:42 pm

1 stop5h 07m

Casper Natrona County

Tue 7/21

8:45 am-2:55 pm

1 stop7h 10m

$536

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Fri 7/17

6:35 am-12:42 pm

1 stop5h 07m

Casper Natrona County

Tue 7/21

1:23 pm-7:51 pm

2 stops7h 28m

$602

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Mon 8/3

6:20 am-5:34 pm

2 stops10h 14m

Casper Natrona County

Sun 8/9

6:13 pm-10:25 pm

1 stop5h 12m

$623

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Casper from

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 month to fly to Casper?

In general, April is the cheapest month to fly from San Diego to Casper. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel during the month of April, then book flights to Casper from San Diego during January instead. Flights to Casper in January, while not as cheap as those in April, still average around $0.

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 52m

Direct flights

None
The fastest flight from San Diego to Casper takes 4h 52m
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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Frequently asked questions about flying from San Diego to Casper

  • 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 52m.

  • 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 $363Free CancellationRating
7.4
9,938 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
Douglas
Evansville

Why use momondo?

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

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

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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