Cheap flights from Trieste to San Diego from $456

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trieste to San Diego departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Lufthansa Logo
6:25 am - 5:24 pmTRS-SAN
19h 59m2 stops
Lufthansa Logo
12:45 pm - 2:00 pmSAN-TRS
16h 15m2 stops
$845Lufthansa
Find Deal
Fri, Feb 20 - Tue, Feb 24
Lufthansa Logo
6:25 am - 5:24 pmTRS-SAN
19h 59m2 stops
Lufthansa Logo
4:04 pm - 10:40 pmSAN-TRS
21h 36m2 stops
$847Lufthansa
Find Deal
Fri, Feb 20 - Tue, Feb 24
Lufthansa Logo
6:25 am - 5:24 pmTRS-SAN
19h 59m2 stops
Lufthansa Logo
12:45 pm - 10:40 pmSAN-TRS
24h 55m2 stops
$849Lufthansa
Find Deal
Fri, Feb 20 - Tue, Feb 24
 Logo
3:00 pm - 8:30 pmTRS-SAN
38h 30m2 stops
 Logo
11:41 am - 10:30 pmSAN-TRS
25h 49m2 stops
$5,508
Find Deal
Sun, Nov 30 - Thu, Dec 4

Lufthansa flights from Trieste to San Diego

Our best Lufthansa deals on Trieste to San Diego flight tickets
Lufthansa
Feb 20
TRS6:25 amTrieste Ronchi dei Legionari
19h 59m
2 stops
SAN5:24 pmSan Diego
Feb 24
SAN12:45 pmSan Diego
16h 15m
2 stops
TRS2:00 pmTrieste Ronchi dei Legionari
Lufthansa
Feb 20
TRS6:25 amTrieste Ronchi dei Legionari
19h 59m
2 stops
SAN5:24 pmSan Diego
Feb 24
SAN4:04 pmSan Diego
21h 36m
2 stops
TRS10:40 pmTrieste Ronchi dei Legionari
Lufthansa
Feb 20
TRS6:25 amTrieste Ronchi dei Legionari
19h 59m
2 stops
SAN5:24 pmSan Diego
Feb 24
SAN12:45 pmSan Diego
24h 55m
2 stops
TRS10:40 pmTrieste Ronchi dei Legionari

momondo Fare Finder

 
Customize your flight search to find flights from Trieste to San Diego 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, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Trieste to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Fri 2/20

6:25 am-5:24 pm

2 stops19h 59m

San Diego

Tue 2/24

12:45 pm-2:00 pm

2 stops16h 15m

$845

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Fri 2/20

6:25 am-5:24 pm

2 stops19h 59m

San Diego

Tue 2/24

4:04 pm-10:40 pm

2 stops21h 36m

$847

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Fri 2/20

6:25 am-5:24 pm

2 stops19h 59m

San Diego

Tue 2/24

12:45 pm-10:40 pm

2 stops24h 55m

$849

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Sun 11/30

3:00 pm-8:30 pm

2 stops38h 30m

San Diego

Thu 12/4

11:41 am-10:30 pm

2 stops25h 49m

$5,508

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Wed 9/10

3:15 pm-12:40 pm

2 stops54h 25m

$456

TriesteSan Diego

TRS - SAN

TRSSAN

Trieste Ronchi dei Legionari

Wed 9/10

8:10 pm-12:40 pm

3 stops49h 30m

$471

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

Direct flights

None
There are no direct flights from Trieste to San Diego. There are no popular flight routes from Trieste to San Diego.
  • How far is Trieste Ronchi dei Legionari to San Diego by plane?

    San Diego is 6209.3 mi away from Trieste Ronchi dei Legionari. 19h 59m 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.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
La Mesa
National City
Imperial Beach
Poway
San Ysidro
Borrego Springs
Alpine
Lemon Grove
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.

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1 adult
Tue 9/2
Tue 9/9

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