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Cheap flights from California to Trieste from $285

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Trieste departing on 2/10. 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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Find the cheapest flights from California to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
3:15 pm - 6:30 pm
LAX
-
TRS
18h 15m1 stop
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
LAX
15h 40m1 stop
$580ITA Airways
qua, abr 29 - qui, mai 14
ITA Airways Logo
3:15 pm - 2:30 pm
LAX
-
TRS
14h 15m1 stop
ITA Airways Logo
7:15 pm - 9:10 pm
TRS
-
LAX
34h 55m2 stops
$612ITA Airways
qua, abr 29 - qui, mai 14
ITA Airways Logo
3:15 pm - 10:25 am
LAX
-
TRS
34h 10m1 stop
ITA Airways Logo
11:15 am - 11:01 pm
TRS
-
LAX
44h 46m2 stops
$621ITA Airways
qua, abr 29 - qui, mai 14
Lufthansa Logo
8:30 am - 6:30 pm
LAX
-
TRS
25h 00m2 stops
Lufthansa Logo
2:40 pm - 1:10 am
TRS
-
LAX
19h 30m2 stops
$627Lufthansa
qua, abr 29 - qui, mai 14
Multiple Airlines Logo
8:30 am - 10:25 am
LAX
-
TRS
16h 55m2 stops
Multiple Airlines Logo
2:40 pm - 1:10 am
TRS
-
LAX
19h 30m2 stops
$685Multiple Airlines
qua, abr 29 - qui, mai 14
Multiple Airlines Logo
8:25 am - 2:00 pm
SFO
-
TRS
20h 35m2 stops
Multiple Airlines Logo
2:40 pm - 12:40 pm
TRS
-
SFO
31h 00m1 stop
$705Multiple Airlines
seg, fev 9 - seg, fev 16
ITA Airways Logo
10:10 am - 2:30 pm
SFO
-
TRS
19h 20m2 stops
ITA Airways Logo
6:35 am - 8:39 pm
TRS
-
SFO
23h 04m2 stops
$710ITA Airways
qua, mai 13 - qua, mai 20
Lufthansa Logo
8:40 am - 10:40 pm
SJC
-
TRS
29h 00m2 stops
Lufthansa Logo
6:15 am - 8:56 pm
TRS
-
SJC
23h 41m2 stops
$735Lufthansa
ter, fev 3 - ter, fev 10
United Airlines Logo
7:00 am - 10:25 am
SAN
-
TRS
18h 25m2 stops
United Airlines Logo
6:35 am - 11:53 am
TRS
-
SAN
38h 18m2 stops
$1,224United Airlines
qua, jan 28 - ter, fev 3
United Airlines Logo
7:00 am - 10:25 am
SAN
-
TRS
18h 25m2 stops
United Airlines Logo
6:35 am - 8:47 pm
TRS
-
SAN
23h 12m2 stops
$1,328United Airlines
qua, jan 28 - seg, fev 2

ITA Airways flights from California to Trieste

Our best ITA Airways deals on California to Trieste flight tickets
ITA Airways
Apr 29
LAX3:15 pmLos Angeles
18h 15m
1 stop
TRS6:30 pmTrieste Ronchi dei Legionari
May 14
TRS6:35 amTrieste Ronchi dei Legionari
15h 40m
1 stop
LAX1:15 pmLos Angeles
$580
Find similar
ITA Airways
Apr 29
LAX3:15 pmLos Angeles
14h 15m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
May 14
TRS7:15 pmTrieste Ronchi dei Legionari
34h 55m
2 stops
LAX9:10 pmLos Angeles
$612
Find similar
ITA Airways
Apr 29
LAX3:15 pmLos Angeles
34h 10m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
May 14
TRS11:15 amTrieste Ronchi dei Legionari
44h 46m
2 stops
LAX11:01 pmLos Angeles
$621
Find similar

Lufthansa flights from California to Trieste

Our best Lufthansa deals on California to Trieste flight tickets
Lufthansa
Apr 29
LAX8:30 amLos Angeles
25h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
May 14
TRS2:40 pmTrieste Ronchi dei Legionari
19h 30m
2 stops
LAX1:10 amLos Angeles
$627
Find similar
Lufthansa
Feb 3
SJC8:40 amSan Jose
29h 00m
2 stops
TRS10:40 pmTrieste Ronchi dei Legionari
Feb 10
TRS6:15 amTrieste Ronchi dei Legionari
23h 41m
2 stops
SJC8:56 pmSan Jose
$735
Find similar
Lufthansa
Feb 9
SFO1:30 pmSan Francisco
20h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Feb 16
TRS11:15 amTrieste Ronchi dei Legionari
34h 25m
2 stops
SFO12:40 pmSan Francisco
$739
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from California to Trieste 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 dezembro 23, 2025.
Use the filters below to find and compare flights from California to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

qua 4/29

3:15 pm-6:30 pm

1 stop18h 15m

Trieste Ronchi dei Legionari

qui 5/14

6:35 am-1:15 pm

1 stop15h 40m

$580

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

qua 4/29

3:15 pm-2:30 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

qui 5/14

7:15 pm-9:10 pm

2 stops34h 55m

$612

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

qua 4/29

3:15 pm-10:25 am

1 stop34h 10m

Trieste Ronchi dei Legionari

qui 5/14

11:15 am-11:01 pm

2 stops44h 46m

$621

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

qua 4/29

8:30 am-6:30 pm

2 stops25h 00m

Trieste Ronchi dei Legionari

qui 5/14

2:40 pm-1:10 am

2 stops19h 30m

$627

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

qua 4/29

8:30 am-10:25 am

2 stops16h 55m

Trieste Ronchi dei Legionari

qui 5/14

2:40 pm-1:10 am

2 stops19h 30m

$685

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

seg 2/9

8:25 am-2:00 pm

2 stops20h 35m

Trieste Ronchi dei Legionari

seg 2/16

2:40 pm-12:40 pm

1 stop31h 00m

$705

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

qua 5/13

10:10 am-2:30 pm

2 stops19h 20m

Trieste Ronchi dei Legionari

qua 5/20

6:35 am-8:39 pm

2 stops23h 04m

$710

San JoseTrieste

SJC - TRS

SJCTRS

San Jose

ter 2/3

8:40 am-10:40 pm

2 stops29h 00m

Trieste Ronchi dei Legionari

ter 2/10

6:15 am-8:56 pm

2 stops23h 41m

$735

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

qua 1/28

7:00 am-10:25 am

2 stops18h 25m

Trieste Ronchi dei Legionari

ter 2/3

6:35 am-11:53 am

2 stops38h 18m

$1,224

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

qua 1/28

7:00 am-10:25 am

2 stops18h 25m

Trieste Ronchi dei Legionari

seg 2/2

6:35 am-8:47 pm

2 stops23h 12m

$1,328

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Trieste from

How to get the cheapest flight ticket from California to Trieste

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Trieste?

The cheapest day to depart on your flight to Trieste is on a Sunday when prices can be found for as low as $924. This is often the case because there is less demand to fly during this day of the week. Flights from California to Trieste on a Friday will generally be more expensive and average around $1,554. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Trieste?

Our most recent data shows that the best time of day to fly to Trieste is in the afternoon. Flights from California to Trieste during this time can be as low as $1,025. Flights to Trieste are more costly in the morning, with an average ticket price of $1,446. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on California to Trieste flights?

You could potentially save up to 30% on your flight if you consider stops on a California to Trieste flight.

Cheap California to Trieste flight deals and tips

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

Fastest flight time

16h 20m

Direct flights

None
The fastest flight from California to Trieste takes 16h 20m
There are no direct flights from California to Trieste. There are no popular flight routes from California to Trieste.
Search flight deals

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

    Prices for flights from California to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from California to Trieste Ronchi dei Legionari Airport?

  • How old do you have to be to fly from California to Trieste Ronchi dei Legionari 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 California to Trieste Ronchi dei Legionari Airport.

  • What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

    The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from California to Trieste

Compare and see reviews for airlines that fly from California to Trieste with momondo
Airline
Rating
Free Cancellation
Price
ITA AirwaysPriceFrom $579Free CancellationRating
6.7
1,112 reviews
Search ITA Airways flights
LufthansaPriceFrom $691Free CancellationRating
6.8
7,649 reviews
Search Lufthansa flights

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Udine
Grado

Why use momondo?

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

It is quick and easy to find California to Trieste 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 Trieste that suits you.

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

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

How can momondo help me find flights from California to Trieste?

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 California to Trieste.

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

Price alerts on flights to Trieste from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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