CPR - SAN

$308 Find Cheap Flights from Casper to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Casper to San Diego departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Casper to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Casper to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$343
United Airlines
Fri 5/15Tue 5/19
CPR - SAN • 1 stop
Cheapest one-way
$308
United Airlines
Sun 5/31
CPR - SAN • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Casper and San Diego. You'll need at least 1 connection.
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We hope you love your trip to San Diego!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Casper to San Diego (CPR-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Casper to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Casper to San Diego

Fri, May 15 - Tue, May 19
United Airlines Logo
6:10 pm - 10:16 pm
CPR
-
SAN
5h 06m
1 stop
United Airlines Logo
4:04 pm - 10:10 pm
SAN
-
CPR
5h 06m
1 stop
$343United Airlines
Fri, May 15 - Tue, May 19
United Airlines Logo
6:10 pm - 10:16 pm
CPR
-
SAN
5h 06m
1 stop
United Airlines Logo
10:55 am - 8:17 pm
SAN
-
CPR
8h 22m
2 stops
$349United Airlines
Tue, May 12 - Sat, May 16
United Airlines Logo
9:00 am - 2:56 pm
CPR
-
SAN
6h 56m
1 stop
United Airlines Logo
6:32 am - 12:41 pm
SAN
-
CPR
5h 09m
1 stop
$358United Airlines
Tue, May 12 - Sat, May 16
United Airlines Logo
1:17 pm - 8:14 pm
CPR
-
SAN
7h 57m
2 stops
United Airlines Logo
6:32 am - 12:41 pm
SAN
-
CPR
5h 09m
1 stop
$364United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
9:25 am - 5:00 pm
CPR
-
SAN
8h 35m
1 stop
United Airlines Logo
12:33 pm - 7:14 pm
SAN
-
CPR
5h 41m
1 stop
$408United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
5:15 am - 1:44 pm
CPR
-
SAN
9h 29m
2 stops
United Airlines Logo
12:33 pm - 7:14 pm
SAN
-
CPR
5h 41m
1 stop
$414United Airlines
Fri, May 29 - Wed, Jun 10
United Airlines Logo
6:13 pm - 10:25 pm
CPR
-
SAN
5h 12m
1 stop
United Airlines Logo
10:55 am - 8:33 pm
SAN
-
CPR
8h 38m
1 stop
$423United Airlines
Fri, May 29 - Wed, Jun 10
United Airlines Logo
11:21 am - 12:30 am
CPR
-
SAN
14h 09m
2 stops
United Airlines Logo
10:55 am - 8:33 pm
SAN
-
CPR
8h 38m
1 stop
$429United Airlines
Thu, May 14 - Mon, May 18
United Airlines Logo
6:10 pm - 10:16 pm
CPR
-
SAN
5h 06m
1 stop
United Airlines Logo
4:04 pm - 10:10 pm
SAN
-
CPR
5h 06m
1 stop
$431United Airlines
Tue, Jun 2 - Wed, Jun 10
United Airlines Logo
11:21 am - 11:54 pm
CPR
-
SAN
13h 33m
2 stops
United Airlines Logo
10:55 am - 8:33 pm
SAN
-
CPR
8h 38m
1 stop
$444United Airlines
Useful Info

Good to know

Cheapest flight$308
Flight from Casper to San Diego

When to book flights from Casper to San Diego

Are your dates flexible? Find out the best times to travel from Casper to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Casper to San Diego

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

    In the last 3 days, the lowest price for a flight from Casper to San Diego was $308 for a one-way ticket and $343 for a round-trip.

  • Do I need a passport to fly between Casper and San Diego?

    No

  • Which airports will I be using when flying from Casper to San Diego?

    On your way to San Diego, you’ll fly out from Casper Natrona County. You’ll be landing at San Diego.

  • Which aircraft models fly most regularly from Casper to San Diego?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Casper to San Diego?

    Star Alliance is the only airline alliance operating flights between Casper and San Diego.

  • How does KAYAK find such low prices on flights from Casper to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Casper to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Casper to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Casper is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Casper to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Casper with another airline. Booking your flights between Casper and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Casper to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Casper up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Casper to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Casper to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Casper to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9677 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

10.0 ExcellentAnonymous, Apr 2026
SFO - LAX
Read more United Airlines reviews

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Terrible, if possible won't be flying again anytime soon!

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

Everything you need to know for your flight from Casper to San Diego

Information on your arrival and departure airports

Casper (CPR)
San Diego (SAN)