$343+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CPR
Sep 7 — Sep 141
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Casper with Cheapflights
1. Tell us where you want to go
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Casper
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Best
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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 August 8, 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 August 8, 2026.
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Thu 8/206:30 am -
1 stop5h 15m
Wed 8/265:15 am -
1 stop4h 50m
Deal found 8/4![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/18:45 am -
1 stop5h 01m
Mon 9/74:15 pm -
1 stop5h 19m
Deal found 8/3![United Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/7. 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 10/912:37 pm -
1 stop6h 40m
Mon 10/126:00 pm -
1 stop5h 27m
Deal found 8/7![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 8/1911:00 am -
1 stop7h 09m
Sun 8/234:28 pm -
1 stop5h 06m
Deal found 8/4![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/7. 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 12/47:00 am -
1 stop4h 35m
Tue 12/811:25 am -
1 stop4h 28m
Deal found 8/7![United Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 8/512:33 pm -
1 stop8h 26m
Wed 9/231:16 pm -
1 stop4h 54m
Deal found 8/4![United Airlines logo]()
$478
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 August 8, 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 August 8, 2026.
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/18:45 am -
1 stop5h 01m
Mon 9/74:15 pm -
1 stop5h 19m
Deal found 8/3![United Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Thu 8/202:24 pm -
2 stops6h 35m
Wed 8/265:15 am -
1 stop4h 50m
Deal found 8/4![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 8/7. 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 10/912:37 pm -
1 stop6h 40m
Mon 10/126:00 pm -
1 stop5h 27m
Deal found 8/7![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 8/6. 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 -
1 stop7h 33m
Wed 8/261:26 pm -
1 stop4h 34m
Deal found 8/6![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 8/1911:00 am -
1 stop7h 09m
Sun 8/234:28 pm -
1 stop5h 06m
Deal found 8/4![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/7. 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 11/107:30 am -
2 stops8h 47m
Wed 11/1111:24 am -
1 stop4h 31m
Deal found 8/7![United Airlines logo]()
$612
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 8/204:07 pm -
1 stop4h 52m
Fri 8/2111:24 am -
1 stop6h 36m
Deal found 8/6![United Airlines logo]()
$756
Last-minute flights from San Diego to CasperDiscover last-minute flight deals from San Diego to Casper. Data last updated August 8, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Casper. Data last updated August 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Mon 8/178:45 am -
1 stop5h 01m
Mon 8/174:15 pm -
1 stop5h 19m
Deal found 8/4![United Airlines logo]()
$951
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 8/1911:00 am -
1 stop7h 09m
Sun 8/234:28 pm -
1 stop5h 06m
Deal found 8/4![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Thu 8/206:30 am -
1 stop5h 15m
Wed 8/265:15 am -
1 stop4h 50m
Deal found 8/4![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 8/204:07 pm -
1 stop4h 52m
Fri 8/2111:24 am -
1 stop6h 36m
Deal found 8/6![United Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/18:45 am -
1 stop5h 01m
Mon 9/74:15 pm -
1 stop5h 19m
Deal found 8/3![United Airlines logo]()
$347
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 August 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $343 (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 2,558,603 searches. Data last updated August 8, 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
Tue 9/1
8:45 am-2:46 pm
1 stop5h 01m
Casper Natrona County
Mon 9/7
4:15 pm-8:34 pm
1 stop5h 19m
$347
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Thu 8/20
2:24 pm-9:59 pm
2 stops6h 35m
Casper Natrona County
Wed 8/26
5:15 am-9:05 am
1 stop4h 50m
$349
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Fri 10/9
12:37 pm-8:17 pm
1 stop6h 40m
Casper Natrona County
Mon 10/12
6:00 pm-10:27 pm
1 stop5h 27m
$362
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Sat 8/22
8:45 am-5:18 pm
1 stop7h 33m
Casper Natrona County
Wed 8/26
1:26 pm-5:00 pm
1 stop4h 34m
$368
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Wed 8/19
11:00 am-7:09 pm
1 stop7h 09m
Casper Natrona County
Sun 8/23
4:28 pm-8:34 pm
1 stop5h 06m
$368
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Tue 11/10
7:30 am-5:17 pm
2 stops8h 47m
Casper Natrona County
Wed 11/11
11:24 am-2:55 pm
1 stop4h 31m
$612
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Thu 8/20
4:07 pm-9:59 pm
1 stop4h 52m
Casper Natrona County
Fri 8/21
11:24 am-5:00 pm
1 stop6h 36m
$756
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 August 8, 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.
Food
6.7
Entertainment
7.1
Crew
8.1
Boarding
7.7
Comfort
7.3
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.7
Entertainment
7.1
Crew
8.1
Boarding
7.7
Comfort
7.3
Overall
7.4
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 2,558,603 searches. Data last updated August 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$363 | Average$453 | FlexibilityNo cancel fee | On-time69% |