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Casper

$308+ Cheap flights from San Diego to Casper (SAN - CPR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CPR
Jul 17 — Jul 241
Fri 7/17
Fri 7/24
1 adult, Economy
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Cheap flight deals from San Diego to Casper

Cheapest flights from San Diego to Casper
Explore the most affordable flight options available from San Diego to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 2026.

This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:45 am
SAN
-
CPR
1 stop7h 33m
United Airlines
Tue 8/255:15 am
CPR
-
SAN
1 stop4h 50m
United Airlines
Deal found 6/14$308
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:07 pm
SAN
-
CPR
1 stop4h 52m
United Airlines
Sat 7/119:26 am
CPR
-
SAN
1 stop6h 29m
United Airlines
Deal found 6/15$384
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:45 am
SAN
-
CPR
1 stop9h 25m
United Airlines
Wed 9/235:15 am
CPR
-
SAN
1 stop4h 50m
United Airlines
Deal found 6/16$388
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:30 am
SAN
-
CPR
2 stops11h 07m
United Airlines
Sat 10/319:10 am
CPR
-
SAN
2 stops9h 19m
United Airlines
Deal found 6/16$399
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:33 pm
SAN
-
CPR
1 stop5h 36m
United Airlines
Mon 8/175:15 am
CPR
-
SAN
2 stops7h 20m
United Airlines
Deal found 6/13$410
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:35 am
SAN
-
CPR
1 stop5h 07m
United Airlines
Wed 7/226:05 pm
CPR
-
SAN
1 stop5h 20m
United Airlines
Deal found 6/17$414
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:33 pm
SAN
-
CPR
1 stop6h 54m
United Airlines
Sun 8/165:15 am
CPR
-
SAN
1 stop4h 50m
United Airlines
Deal found 6/13$432
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:33 pm
SAN
-
CPR
1 stop8h 26m
United Airlines
Thu 7/308:45 am
CPR
-
SAN
1 stop9h 35m
United Airlines
Deal found 6/15$444

Find flight deals from San Diego to Casper

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Casper (CPR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$308
(United Airlines)

Popular in

October

Cheapest in

May

Average price

$479
Provider with most accurate pricing for San Diego-Casper Natrona County flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Casper Natrona County flights.
Search Deals
From San Diego to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 17, 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

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 8/22

6:30 am-12:45 pm

1 stop5h 15m

Casper Natrona County

Tue 8/25

5:15 am-11:35 am

2 stops7h 20m

$314

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Wed 8/5

8:45 am-7:10 pm

1 stop9h 25m

Casper Natrona County

Wed 9/23

5:15 am-9:05 am

1 stop4h 50m

$388

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Tue 10/27

12:45 pm-6:37 pm

1 stop4h 52m

Casper Natrona County

Sat 10/31

3:15 pm-9:08 pm

1 stop6h 53m

$388
Quickest round-trip

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Wed 10/21

12:37 pm-7:09 pm

1 stop5h 32m

Casper Natrona County

Sat 10/24

1:26 pm-5:05 pm

1 stop4h 39m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Diego-Casper flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Casper flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Casper flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Casper flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Casper

Get insights into the airlines that provide service to Casper. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Casper. Reviews last updated June 17, 2026.
Read through reviews of airlines operating flights from San Diego to Casper, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,845 reviews

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,845 reviews
United Airlines
7.4
Good
9,845 reviews

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Casper. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Diego to Casper?

    There are many flights that can get you from San Diego to Casper in 5h 15m. Fly via United Airlines to get the fastest option. The distance from San Diego to Casper is about 913 mi.

  • What is the cheapest airline to fly from San Diego to Casper round-trip?

    Our cheapest airline available from San Diego to Casper is United Airlines. Our recent data shows that you can find tickets from as low as $363 on this airline. This flight start at 28% lower than the current average price 3 months from now.

  • Can I find deals for flights from San Diego to Casper that include hotel bookings?

    Yes. In addition to deals on San Diego to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Casper.

  • Can I find deals for business class flights from San Diego to Casper?

    Yes. Cheapflights offers flight deals from San Diego to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Casper?

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

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Top airline flying from San Diego to Casper

Discover the top airline that operate flights from San Diego to Casper. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$363Average$479FlexibilityNo cancel feeOn-time69%

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