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Cheap flights from Trieste to California from $411

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 California departing on 1/12. 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

Enter your travel dates to find the best prices.
ITA Airways Logo
7:15 pm - 7:13 pm
TRS
-
SFO
32h 58m2 stops
ITA Airways Logo
3:15 pm - 6:30 pm
SFO
-
TRS
18h 15m1 stop
$550ITA Airways
mar., abr. 14 - mar., abr. 28
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m1 stop
$551ITA Airways
mar., abr. 14 - mar., abr. 28
ITA Airways Logo
6:35 am - 1:30 pm
TRS
-
LAX
15h 55m1 stop
ITA Airways Logo
3:20 pm - 10:55 pm
LAX
-
TRS
22h 35m1 stop
$557ITA Airways
dom., ene. 25 - dom., feb. 1
ITA Airways Logo
6:35 am - 1:30 pm
TRS
-
LAX
15h 55m1 stop
ITA Airways Logo
3:20 pm - 6:30 pm
LAX
-
TRS
18h 10m1 stop
$563ITA Airways
mié., feb. 18 - mié., feb. 25
Multiple Airlines Logo
11:15 am - 8:46 pm
TRS
-
SNA
18h 31m2 stops
Multiple Airlines Logo
1:22 pm - 2:30 pm
SNA
-
TRS
16h 08m2 stops
$896Multiple Airlines
mar., abr. 14 - mar., abr. 28
Multiple Airlines Logo
11:15 am - 8:46 pm
TRS
-
SNA
18h 31m2 stops
Multiple Airlines Logo
1:22 pm - 2:30 pm
SNA
-
TRS
16h 08m2 stops
$989Multiple Airlines
jue., abr. 16 - mar., abr. 28
Lufthansa Logo
6:15 am - 9:18 pm
TRS
-
SNA
24h 03m2 stops
Lufthansa Logo
3:41 pm - 10:30 pm
SNA
-
TRS
21h 49m2 stops
$1,013Lufthansa
jue., ene. 8 - jue., ene. 15
United Airlines Logo
6:35 am - 7:54 pm
TRS
-
SNA
22h 19m2 stops
United Airlines Logo
6:45 am - 10:25 am
SNA
-
TRS
18h 40m2 stops
$1,038United Airlines
jue., feb. 19 - lun., feb. 23
United Airlines Logo
6:35 am - 7:54 pm
TRS
-
SNA
22h 19m2 stops
United Airlines Logo
6:50 am - 10:25 am
SNA
-
TRS
42h 35m3 stops
$1,166United Airlines
jue., feb. 19 - lun., feb. 23
KLM Logo
6:35 am - 8:56 pm
TRS
-
LAS
23h 21m2 stops
KLM Logo
11:28 pm - 6:30 pm
LAS
-
TRS
34h 02m2 stops
$1,252KLM
vie., dic. 26 - mar., dic. 30

ITA Airways flights from Trieste to California

Our best ITA Airways deals on Trieste to California flight tickets
ITA Airways
Apr 14
TRS7:15 pmTrieste Ronchi dei Legionari
32h 58m
2 stops
SFO7:13 pmSan Francisco
Apr 28
SFO3:15 pmSan Francisco
18h 15m
1 stop
TRS6:30 pmTrieste Ronchi dei Legionari
$550
Find similar
ITA Airways
Apr 14
TRS6:35 amTrieste Ronchi dei Legionari
15h 40m
1 stop
SFO1:15 pmSan Francisco
Apr 28
SFO3:15 pmSan Francisco
14h 15m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
$551
Find similar
ITA Airways
Jan 25
TRS6:35 amTrieste Ronchi dei Legionari
15h 55m
1 stop
LAX1:30 pmLos Angeles
Feb 1
LAX3:20 pmLos Angeles
22h 35m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
$557
Find similar

KLM flights from Trieste to California

Our best KLM deals on Trieste to California flight tickets
KLM
Feb 17
TRS6:35 amTrieste Ronchi dei Legionari
25h 48m
2 stops
LAX11:23 pmLos Angeles
Feb 24
LAX7:45 amLos Angeles
21h 45m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
$860
Find similar
KLM
Feb 17
TRS6:35 amTrieste Ronchi dei Legionari
25h 48m
2 stops
LAX11:23 pmLos Angeles
Feb 26
LAX10:10 amLos Angeles
19h 20m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
$871
Find similar
KLM
Dec 26
TRS6:35 amTrieste Ronchi dei Legionari
23h 21m
2 stops
LAS8:56 pmLas Vegas Harry Reid Intl
Dec 30
LAS11:28 pmLas Vegas Harry Reid Intl
34h 02m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$1,252
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Trieste to California 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 diciembre 11, 2025.
Use the filters below to find and compare flights from Trieste to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

mar. 4/14

7:15 pm-7:13 pm

2 stops32h 58m

San Francisco

mar. 4/28

3:15 pm-6:30 pm

1 stop18h 15m

$550

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

mar. 4/14

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

mar. 4/28

3:15 pm-2:30 pm

1 stop14h 15m

$551

TriesteLos Angeles

TRS - LAX

TRSLAX

Trieste Ronchi dei Legionari

dom. 1/25

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

dom. 2/1

3:20 pm-10:55 pm

1 stop22h 35m

$557

TriesteLos Angeles

TRS - LAX

TRSLAX

Trieste Ronchi dei Legionari

mié. 2/18

6:35 am-1:30 pm

1 stop15h 55m

Los Angeles

mié. 2/25

3:20 pm-6:30 pm

1 stop18h 10m

$563

TriesteSanta Ana

TRS - SNA

TRSSNA

Trieste Ronchi dei Legionari

mar. 4/14

11:15 am-8:46 pm

2 stops18h 31m

Santa Ana J. Wayne/Orange Cnty

mar. 4/28

1:22 pm-2:30 pm

2 stops16h 08m

$896

TriesteSanta Ana

TRS - SNA

TRSSNA

Trieste Ronchi dei Legionari

jue. 4/16

11:15 am-8:46 pm

2 stops18h 31m

Santa Ana J. Wayne/Orange Cnty

mar. 4/28

1:22 pm-2:30 pm

2 stops16h 08m

$989

TriesteSanta Ana

TRS - SNA

TRSSNA

Trieste Ronchi dei Legionari

jue. 1/8

6:15 am-9:18 pm

2 stops24h 03m

Santa Ana J. Wayne/Orange Cnty

jue. 1/15

3:41 pm-10:30 pm

2 stops21h 49m

$1,013

TriesteSanta Ana

TRS - SNA

TRSSNA

Trieste Ronchi dei Legionari

jue. 2/19

6:35 am-7:54 pm

2 stops22h 19m

Santa Ana J. Wayne/Orange Cnty

lun. 2/23

6:45 am-10:25 am

2 stops18h 40m

$1,038

TriesteSanta Ana

TRS - SNA

TRSSNA

Trieste Ronchi dei Legionari

jue. 2/19

6:35 am-7:54 pm

2 stops22h 19m

Santa Ana J. Wayne/Orange Cnty

lun. 2/23

6:50 am-10:25 am

3 stops42h 35m

$1,166

TriesteLas Vegas

TRS - LAS

TRSLAS

Trieste Ronchi dei Legionari

vie. 12/26

6:35 am-8:56 pm

2 stops23h 21m

Las Vegas Harry Reid Intl

mar. 12/30

11:28 pm-6:30 pm

2 stops34h 02m

$1,252

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to California from

How to get the cheapest flight ticket from Trieste to California

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 month to fly to California?

The month of April is another great option to travel to California, with average flight prices from Trieste averaging around $537.

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

The cheapest day to depart from Trieste to California is on a Thursday. Travelers who choose to depart for California on a Thursday will often find tickets for as low as $541. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to California on Monday is $734.

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

The cheapest time of day to fly to California is in the evening when flights can be purchased for as low as $581. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $674 on average. Flights to California from Trieste in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Trieste to California flights?

You could potentially save up to 5% on your flight if you consider stops on a Trieste to California flight.

Cheap Trieste to California flight deals and tips

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

Fastest flight time

15h 25m

Direct flights

None
The fastest flight from Trieste to California takes 15h 25m
There are no direct flights from Trieste to California. There are no popular flight routes from Trieste to California.
Search flight deals

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

    Prices for flights from Trieste Ronchi dei Legionari Airport to California refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to California.

  • What documentation or ID do you need to fly to California?

    The required travel and health documents for your California trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at California. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Trieste to California

Compare and see reviews for airlines that fly from Trieste to California with momondo
Airline
Rating
Free Cancellation
Price
ITA AirwaysPriceFrom $512Free CancellationRating
6.7
1,100 reviews
Search ITA Airways flights
LufthansaPriceFrom $653Free CancellationRating
6.8
7,626 reviews
Search Lufthansa flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Trieste to California. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Trieste to California flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to California from Trieste. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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