How do I get Price Alerts for flights from Trieste to San Diego?

Price Alerts will notify you by email when the price for flights to San Diego from Trieste decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Trieste to San Diego with momondo?

By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to San Diego Airport?

Prices for flights from Trieste Ronchi dei Legionari Airport to San Diego Airport were last updated today.

How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to San Diego Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trieste Ronchi dei Legionari Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,306 Cheap Flights from Trieste to San Diego in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Trieste to San Diego

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:35 am - 8:49 pm

TRS

SAN

23h 14m3 stops

7:00 am - 10:25 am

SAN

TRS

18h 25m2 stops

$1,306United Airlines

Thu, Feb 26 - Mon, Mar 2

6:35 am - 8:49 pm

TRS

SAN

23h 14m3 stops

7:50 pm - 10:25 am

SAN

TRS

29h 35m3 stops

$1,399United Airlines

Thu, Feb 26 - Mon, Mar 2

United Airlines flights from Trieste to San Diego

Our best United Airlines deals on Trieste to San Diego flight tickets

United Airlines

Feb 26

TRS6:35 amTrieste Ronchi dei Legionari

23h 14m

3 stops

SAN8:49 pmSan Diego

Mar 2

SAN7:00 amSan Diego

18h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,306

Find similar

United Airlines

Feb 26

TRS6:35 amTrieste Ronchi dei Legionari

23h 14m

3 stops

SAN8:49 pmSan Diego

Mar 2

SAN7:50 pmSan Diego

29h 35m

3 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,399

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Thu 2/26

6:35 am-8:49 pm

3 stops23h 14m

San Diego

Mon 3/2

7:00 am-10:25 am

2 stops18h 25m

$1,306

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Thu 2/26

6:35 am-8:49 pm

3 stops23h 14m

San Diego

Mon 3/2

7:50 pm-10:25 am

3 stops29h 35m

$1,399

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Trieste to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Trieste to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Trieste to San Diego (TRS to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trieste to San Diego

Fastest flight time	36h 17m
Direct flights	None

The fastest flight from Trieste to San Diego takes 36h 17m

There are no direct flights from Trieste to San Diego. There are no popular flight routes from Trieste to San Diego.

Search flight deals

How far is Trieste Ronchi dei Legionari to San Diego by plane?
San Diego is 6209.3 mi away from Trieste Ronchi dei Legionari. 23h 14m is a normal flight duration for this route.
When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to San Diego Airport?
Prices for flights from Trieste Ronchi dei Legionari Airport to San Diego Airport were last updated today.
How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trieste Ronchi dei Legionari Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Trieste to San Diego?
Price Alerts will notify you by email when the price for flights to San Diego from Trieste decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Trieste to San Diego with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Coronado

Chula Vista

El Cajon

Julian

National City

Imperial Beach

Poway

La Mesa

Borrego Springs

San Ysidro

Lemon Grove

Alpine

Santee

Why use momondo?

Why should I use momondo to find a flight deal from Trieste to San Diego?

It is quick and easy to find Trieste to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from Trieste to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from Trieste with this policy.

How can momondo help me find flights from Trieste to San Diego?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Trieste to San Diego.

I’m not ready to book a flight from Trieste to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Trieste and alert you when they change.