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$271+ Cheap flights from San Diego to Casper (SAN - CPR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CPR
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$278
(United Airlines)

One-way from

$271
(United Airlines)
From San Diego to Casper Natrona County
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One-way flight from San Diego to Casper Natrona County
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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 9/266:53 amSAN - CPR
1 stop4h 49mUnited Airlines
Tue 9/305:30 amCPR - SAN
1 stop4h 42mUnited Airlines
Deal found 9/11$278
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/411:15 amSAN - CPR
1 stop4h 38mUnited Airlines
Mon 10/66:00 pmCPR - SAN
1 stop5h 15mUnited Airlines
Deal found 9/10$318
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/119:01 amSAN - CPR
1 stop4h 36mUnited Airlines
Mon 10/136:00 pmCPR - SAN
1 stop5h 15mUnited Airlines
Deal found 9/11$359

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 September 11, 2025.
Use the filters below to find and compare flights from San Diego to Casper that are best for you.

Fly from

San Diego

Fly to

Casper

Route

Depart

Return

Price

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Fri 9/26

6:53 am-12:42 pm

1 stop4h 49m

Casper Natrona County

Tue 9/30

5:30 am-9:12 am

1 stop4h 42m

$278

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 10/4

11:15 am-4:53 pm

1 stop4h 38m

Casper Natrona County

Mon 10/6

6:00 pm-10:15 pm

1 stop5h 15m

$318

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Sat 10/11

9:01 am-2:37 pm

1 stop4h 36m

Casper Natrona County

Mon 10/13

6:00 pm-10:15 pm

1 stop5h 15m

$359

San DiegoCasper

SAN - CPR

SANCPR

San Diego

Fri 10/10

11:08 am-8:17 pm

2 stops8h 09m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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 September 11, 2025.
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
8,937 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

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 4h 49m. 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 $263 on this airline.

  • 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.

  • What is the cheapest month to book a flight from San Diego to Casper?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Casper (average of $348). Flying from San Diego to Casper in June is currently the most expensive (average of $500). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$263Average$438FlexibilityNo cancel feeOn-time69%

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