$356+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CPR
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
Cheapest flights from San Diego to CasperExplore 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 4, 2026.
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 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/167:00 am -
1 stop4h 39m
Mon 10/196:00 pm -
1 stop5h 27m
Deal found 9/2![United Airlines logo]()
$356
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/196:30 am -
1 stop7h 16m
Wed 9/234:15 pm -
1 stop5h 19m
Deal found 9/4![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/1. 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 12/86:45 am -
1 stop9h 32m
Sat 12/123:14 pm -
1 stop6h 54m
Deal found 9/1![United Airlines logo]()
$398
Best flights from San Diego to CasperDiscover carefully curated flight deals from San Diego to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from San Diego to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/167:00 am -
1 stop4h 39m
Mon 10/195:15 am -
2 stops7h 20m
Deal found 9/2![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/196:30 am -
1 stop7h 16m
Wed 9/234:15 pm -
1 stop5h 19m
Deal found 9/4![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/3. 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 12/86:45 am -
1 stop9h 32m
Sat 12/123:14 pm -
1 stop6h 54m
Deal found 9/3![United Airlines logo]()
$398
Last-minute flights from San Diego to CasperDiscover last-minute flight deals from San Diego to Casper. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Casper. Data last updated September 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/811:00 am -
1 stop6h 59m
Wed 9/91:16 pm -
1 stop4h 54m
Deal found 9/1![United Airlines logo]()
$956
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/196:30 am -
1 stop7h 16m
Wed 9/234:15 pm -
1 stop5h 19m
Deal found 9/4![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/167:00 am -
1 stop4h 39m
Mon 10/196:00 pm -
1 stop5h 27m
Deal found 9/2![United Airlines logo]()
$356
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 September 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $356 (United Airlines) |
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 7,457,451 searches. Data last updated September 4, 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
Cheapest round-trip
Quickest round-trip
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Fri 10/16
7:00 am-12:39 pm
1 stop4h 39m
Casper Natrona County
Mon 10/19
5:15 am-11:35 am
2 stops7h 20m
$361
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Sat 9/19
6:30 am-2:46 pm
1 stop7h 16m
Casper Natrona County
Wed 9/23
4:15 pm-8:34 pm
1 stop5h 19m
$368
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Tue 12/8
6:45 am-5:17 pm
1 stop9h 32m
Casper Natrona County
Sat 12/12
3:14 pm-9:08 pm
1 stop6h 54m
$398
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.
SAN-CPR
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 4, 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.
Entertainment
7.1
Crew
8.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Crew
8.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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.
Traveling to a place near Casper?
Book flights to Casper if you plan to visit one of these locationsRawlins
Douglas
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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 7,457,451 searches. Data last updated September 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$363 | Average$453 | FlexibilityNo cancel fee | On-time69% |