$463 Cheap Flights from San Diego (SAN) to Trieste (TRS)

View $463 flight on Mon, Nov 10, 2025Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS)

Cheap Flights from San Diego to Trieste (SAN-TRS)

Prices were available within the past 7 days and start at $463 for one-way flights and $674 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sun, Mar 8 - Sat, Mar 14
SAN
San Diego
TRS
Trieste
$674 Roundtrip, found 4 days ago
$674
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sun, Mar 8 from San Diego to Trieste, returning Sat, Mar 14, priced at $674 found 4 days ago
Lufthansa
Sun, Mar 8 - Sat, Mar 14
SAN
San Diego
TRS
Trieste
$690 Roundtrip, found 4 days ago
$690
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Sun, Mar 8 from San Diego to Trieste, returning Sat, Mar 14, priced at $690 found 4 days ago
Lufthansa
Wed, Nov 19 - Tue, Dec 2
SAN
San Diego
TRS
Trieste
$850 Roundtrip, found 13 hours ago
$850
Roundtrip
found 13 hours ago
Select Lufthansa flight, departing Wed, Nov 19 from San Diego to Trieste, returning Tue, Dec 2, priced at $850 found 13 hours ago
Lufthansa
Wed, Apr 1 - Sat, Apr 11
SAN
San Diego
TRS
Trieste
$873 Roundtrip, found 1 day ago
$873
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Apr 1 from San Diego to Trieste, returning Sat, Apr 11, priced at $873 found 1 day ago
Lufthansa
Wed, Apr 1 - Sat, Apr 11
SAN
San Diego
TRS
Trieste
$889 Roundtrip, found 1 day ago
$889
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Apr 1 from San Diego to Trieste, returning Sat, Apr 11, priced at $889 found 1 day ago
Lufthansa
Wed, Apr 1 - Sat, Apr 11
SAN
San Diego
TRS
Trieste
$923 Roundtrip, found 1 day ago
$923
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Apr 1 from San Diego to Trieste, returning Sat, Apr 11, priced at $923 found 1 day ago
United
Wed, Nov 19 - Tue, Dec 2
SAN
San Diego
TRS
Trieste
$929 Roundtrip, found 13 hours ago
$929
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 19 from San Diego to Trieste, returning Tue, Dec 2, priced at $929 found 13 hours ago
Lufthansa
Wed, Apr 1 - Sat, Apr 11
SAN
San Diego
TRS
Trieste
$939 Roundtrip, found 1 day ago
$939
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Apr 1 from San Diego to Trieste, returning Sat, Apr 11, priced at $939 found 1 day ago
Brussels Airlines
Sun, Mar 8 - Sat, Mar 14
SAN
San Diego
TRS
Trieste
$1,680 Roundtrip, found 4 days ago
$1,680
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Sun, Mar 8 from San Diego to Trieste, returning Sat, Mar 14, priced at $1,680 found 4 days ago
ITA Airways
Wed, Apr 1 - Sat, Apr 11
SAN
San Diego
TRS
Trieste
$1,873 Roundtrip, found 1 day ago
$1,873
Roundtrip
found 1 day ago
Select ITA Airways flight, departing Wed, Apr 1 from San Diego to Trieste, returning Sat, Apr 11, priced at $1,873 found 1 day ago

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS) cost?
Get a cheap one-way flight from $463 or cheap return flight from $674 from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS)?
March is the least expensive month to fly from SAN to TRS. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS)?
To find the cheapest airline that'll fly you from SAN to TRS, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS)?
Nonstop flights from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAN to TRS?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS)?
Book a flight from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS) last-minute?
Last-minute bookings from SAN to TRS are typically more expensive. To secure the best rates, start looking for flights as early as possible. That said, if you can play around with your travel dates, it's possible to land a cheap fare right before your trip.
Is it cheaper to book a SAN to TRS flight and hotel package?
You'll generally save money by securing a SAN to TRS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your ideal flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Friuli Venezia Giulia Airport (TRS)?
If you reserved your SAN to TRS flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
San Diego Intl.
Destination airport
Friuli Venezia Giulia
Airlines serving
Brussels Airlines, Lufthansa
Roundtrip price
$674
Distance
6195 mi

Book with confidence

San Diego to Trieste Flights

The cheapest times to fly from San Diego to Trieste

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 San Diego to Trieste are during the month of March. You can find some of the cheapest flights from San Diego to Trieste with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Diego to Trieste: 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 San Diego to Trieste

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 San Diego to Trieste in 2025. You can also book with separate airlines for your outbound and return journeys, from $463 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 San Diego to Trieste 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 San Diego to Trieste 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.

 

San Diego to Trieste Flights

Explore a world of travel with Expedia

*Available to One Key members.