$378 Cheap Flights from Johnstown (JST) to San Diego (SAN)

View $378 flight on Sun, May 11, 2025Opens in a new window

Popular airlines from Johnstown, PA (JST-John Murtha Johnstown - Cambria County) to San Diego Intl. Airport (SAN)

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Cheap Flights from Johnstown to San Diego (JST-SAN)

Prices were available within the past 7 days and start at $378 for one-way flights and $310 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$310 Roundtrip, found 13 hours ago
$310
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $310 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$319 Roundtrip, found 13 hours ago
$319
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $319 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$328 Roundtrip, found 13 hours ago
$328
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $328 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$338 Roundtrip, found 13 hours ago
$338
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $338 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$340 Roundtrip, found 13 hours ago
$340
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $340 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$346 Roundtrip, found 13 hours ago
$346
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $346 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$349 Roundtrip, found 13 hours ago
$349
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $349 found 13 hours ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$356 Roundtrip, found 13 hours ago
$356
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $356 found 13 hours ago
United
Thu, Jun 5 - Mon, Jun 9
JST
Johnstown
SAN
San Diego
$404 Roundtrip, found 1 day ago
$404
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 5 from Johnstown to San Diego, returning Mon, Jun 9, priced at $404 found 1 day ago
United
Fri, May 30 - Thu, Jun 5
JST
Johnstown
SAN
San Diego
$410 Roundtrip, found 13 hours ago
$410
Roundtrip
found 13 hours ago
Select United flight, departing Fri, May 30 from Johnstown to San Diego, returning Thu, Jun 5, priced at $410 found 13 hours ago
Flights from Johnstown (JST) to San Diego (SAN)
Origin airport
John Murtha Johnstown - Cambria County
Destination airport
San Diego Intl.
Airlines serving
United
Roundtrip price
$309
Distance
2175 mi

Johnstown to San Diego Flights

The cheapest times to fly from Johnstown to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Johnstown to San Diego are during the month of May. You can find some of the cheapest flights from Johnstown to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Johnstown to San Diego

Sunday is one of the best days to book for cheap flights from Johnstown to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Johnstown to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Johnstown to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $378 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Johnstown to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Johnstown to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from John Murtha Johnstown - Cambria County Airport (JST) to San Diego Intl. Airport (SAN) cost?
Discover the latest flight deals from JST to SAN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from JST to SAN?
The cheapest flights from JST to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from JST to SAN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from JST to SAN. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from John Murtha Johnstown - Cambria County Airport (JST) to San Diego Intl. Airport (SAN)?
There are no daily direct flights from John Murtha Johnstown - Cambria County Airport (JST) to San Diego Intl. Airport (SAN). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you’ll be on your way in no time.
What day of the week has the most flights from JST to SAN?
Generally you’ll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from John Murtha Johnstown - Cambria County Airport (JST) to San Diego Intl. Airport (SAN)?
To land at San Diego Intl. Airport (SAN) on schedule, pick a flight that leaves John Murtha Johnstown - Cambria County Airport (JST) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from John Murtha Johnstown - Cambria County Airport (JST) to San Diego Intl. Airport (SAN) last-minute?
Waiting until just before your departure to book a ticket from JST to SAN generally means paying more. While you might find some last-minute deals, they’re not always guaranteed. Keep your travel plans flexible for the best chance of landing a bargain.
Is it cheaper to book a JST to SAN flight and hotel package?
Compared with arranging flights and hotels separately, booking a JST to SAN flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the stress out of travel planning. Just pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from John Murtha Johnstown - Cambria County Airport (JST) to San Diego Intl. Airport (SAN)?
Generally, it’s possible to cancel or reschedule your JST to SAN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.