$313+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CPR
Oct 25 — Nov 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 25, 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 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/237:00 am -
1 stop4h 39m
Fri 10/305:15 am -
1 stop4h 55m
Deal found 9/25![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/64:11 pm -
1 stop4h 53m
Sat 10/101:20 pm -
2 stops8h 25m
Deal found 9/21![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/197:00 am -
1 stop9h 11m
Mon 10/263:13 pm -
1 stop6h 23m
Deal found 9/23![United Airlines logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/22. 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 12/86:20 am -
2 stops13h 22m
Sat 12/121:21 pm -
1 stop8h 20m
Deal found 9/22![United Airlines logo]()
$469
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 25, 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 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/237:00 am -
1 stop4h 39m
Fri 10/305:15 am -
1 stop4h 55m
Deal found 9/25![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/611:00 am -
1 stop5h 03m
Sat 10/103:11 pm -
1 stop6h 28m
Deal found 9/21![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/197:00 am -
1 stop9h 11m
Mon 10/263:13 pm -
1 stop6h 23m
Deal found 9/23![United Airlines logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/23. 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 12/86:20 am -
2 stops13h 22m
Sat 12/121:21 pm -
1 stop8h 20m
Deal found 9/23![United Airlines logo]()
$469
Last-minute flights from San Diego to CasperDiscover last-minute flight deals from San Diego to Casper. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Casper. Data last updated September 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/64:11 pm -
1 stop4h 53m
Sat 10/101:20 pm -
2 stops8h 25m
Deal found 9/21![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/197:00 am -
1 stop9h 11m
Mon 10/263:13 pm -
1 stop6h 23m
Deal found 9/23![United Airlines logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/237:00 am -
1 stop4h 39m
Fri 10/305:15 am -
1 stop4h 55m
Deal found 9/25![United Airlines logo]()
$338
One-way flights from San Diego to CasperSearch for one-way flight options from San Diego to Casper. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
Search for one-way flight options from San Diego to Casper. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/296:45 am -
1 stop5h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/57:00 am -
1 stop4h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Sun 10/47:00 am -
1 stop4h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$483
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/14:11 pm -
1 stop4h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 9/24. 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 9/3011:00 am -
1 stop5h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/37:41 pm -
3 stops15h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$562
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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $414 (United Airlines) |
One-way from | $313 (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 25, 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
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Thu 10/29
6:45 am-12:48 pm
1 stop5h 03m
Casper Natrona County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$313
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Fri 10/23
7:00 am-12:39 pm
1 stop4h 39m
Casper Natrona County
Fri 10/30
5:15 am-9:10 am
1 stop4h 55m
$338
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Tue 10/6
11:00 am-5:03 pm
1 stop5h 03m
Casper Natrona County
Sat 10/10
3:11 pm-8:39 pm
1 stop6h 28m
$461
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Mon 10/19
7:00 am-5:11 pm
1 stop9h 11m
Casper Natrona County
Mon 10/26
3:13 pm-8:36 pm
1 stop6h 23m
$463
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Tue 12/8
6:20 am-8:42 pm
2 stops13h 22m
Casper Natrona County
Sat 12/12
1:21 pm-8:41 pm
1 stop8h 20m
$469
Quickest round-trip
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Sun 10/4
7:00 am-12:39 pm
1 stop4h 39m
Casper Natrona County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$488
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Thu 10/1
4:11 pm-10:04 pm
1 stop4h 53m
Casper Natrona County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$488
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Sat 10/3
7:30 am-8:17 pm
2 stops11h 47m
Casper Natrona County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$494
San DiegoCasper
SAN San Diego - CPR Casper Natrona County
SANCPR
San Diego
Wed 9/30
11:00 am-5:03 pm
1 stop5h 03m
Casper Natrona County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$503
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.
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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Casper flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Diego
Popular flights