$405 Find Cheap Flights from Trieste to California

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Trieste to California departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trieste to California, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trieste to California, as well as popular online travel agencies
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Flights Deals

Best California Flight Deals from Trieste

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Los Angeles
Los Angeles1 stop$623
San Francisco
San Francisco1 stop$625
Los Angeles
Los Angeles1 stop$623
San Francisco
San Francisco1 stop$625

Cheap Flight Deals from Trieste to California (TRS-USCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trieste to California that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Trieste to California

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Trieste to California.
Discover the best prices for you by selecting your travel dates on KAYAK.
ITA Airways Logo
6:35 am - 1:15 pmTRS-LAX
15h 40m1 stop
ITA Airways Logo
11:05 am - 2:30 pmLAX-TRS
18h 25m2 stops
$623ITA Airways
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Wed, Sep 3 - Tue, Sep 30
ITA Airways Logo
7:25 pm - 1:15 pmTRS-SFO
26h 50m1 stop
ITA Airways Logo
3:15 pm - 2:30 pmSFO-TRS
14h 15m1 stop
$625ITA Airways
Find Deal
Mon, Sep 1 - Wed, Oct 1
ITA Airways Logo
7:25 pm - 1:15 pmTRS-LAX
26h 50m1 stop
ITA Airways Logo
7:00 am - 2:30 pmLAX-TRS
22h 30m2 stops
$627ITA Airways
Find Deal
Mon, Sep 1 - Tue, Sep 30
ITA Airways Logo
6:35 am - 7:54 pmTRS-LAX
22h 19m2 stops
ITA Airways Logo
7:00 am - 10:25 amLAX-TRS
18h 25m2 stops
$629ITA Airways
Find Deal
Wed, Sep 3 - Tue, Sep 30
ITA Airways Logo
6:35 am - 5:47 pmTRS-SFO
20h 12m2 stops
ITA Airways Logo
3:15 pm - 6:35 pmSFO-TRS
18h 20m1 stop
$631ITA Airways
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Wed, Sep 3 - Tue, Sep 30
Lufthansa Logo
6:30 am - 4:00 pmTRS-SFO
18h 30m1 stop
Lufthansa Logo
8:25 am - 2:05 pmSFO-TRS
20h 40m2 stops
$724Lufthansa
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Thu, Sep 4 - Mon, Sep 29
Lufthansa Logo
6:30 am - 1:00 pmTRS-LAX
15h 30m1 stop
Lufthansa Logo
8:15 am - 10:25 pmLAX-TRS
29h 10m2 stops
$724Lufthansa
Find Deal
Fri, Sep 5 - Thu, Oct 2
TAP AIR PORTUGAL Logo
6:35 am - 2:35 pmTRS-SFO
41h 00m2 stops
TAP AIR PORTUGAL Logo
4:20 pm - 6:35 pmSFO-TRS
41h 15m2 stops
$743TAP AIR PORTUGAL
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Tue, Sep 2 - Wed, Oct 1
TAP AIR PORTUGAL Logo
6:35 am - 4:45 pmTRS-SFO
43h 10m3 stops
TAP AIR PORTUGAL Logo
4:20 pm - 6:35 pmSFO-TRS
41h 15m2 stops
$754TAP AIR PORTUGAL
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Mon, Sep 1 - Wed, Oct 1
Air France Logo
3:15 pm - 12:50 pmTRS-SFO
30h 35m2 stops
Air France Logo
3:05 pm - 6:30 pmSFO-TRS
18h 25m2 stops
$1,315Air France
Find Deal
Sat, May 31 - Thu, Jun 5
Useful Info

KAYAK's insights & trends for Trieste to California flights

Get data-powered insights and trends into flights from Trieste to California to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Trieste to California?

The average price of all round-trip flights from Trieste to California clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to California on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Trieste to California. For your return ticket, we recommend flying on a Sunday and avoiding Fridays for the best deals.

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Good to know

Low seasonJanuary
High seasonApril
Cheapest flight$405
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Trieste to San Francisco

FAQs - booking California flights

  • How does KAYAK find such low prices on flights from Trieste to California?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trieste to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trieste to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Trieste to California is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Trieste to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Trieste to California with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trieste to California?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Trieste to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally at night, when round-trip flights cost $581 on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is $674.

Top airline flying from Trieste to California

 
See real verified KAYAK customer reviews for airlines flying from Trieste to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Trieste to California? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
LufthansaOverall score based on 7046 reviews
6.2Food
6.7Comfort
7.5Crew
6.4Entertainment
6.9Boarding
Airline reviews

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

10.0 ExcellentAnonymous, Apr 2025FCO - SFO
Read more Lufthansa reviews

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I wasn’t allowed to board with my children. I was charged outrageous costs for basic carry on size luggage. The entertainment screens were outdated and not user friendly.

I was very happy with everything, thank you for the smooth flight ✈️

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

I enjoyed my flight back with Lufthansa because the food was good, and the flight attendants were nice and helped you when you asked a question. The flight attendants always came around and asked if you needed anything which I liked a lot.

Entertainment system is old. Food can be tastier Need to provide toothbrush and toothpaste at least when asked.

The flight was cancelled due to tech problem with the plane

Everything you need to know for your flight from Trieste to California

Information on your arrival and departure airports

Trieste (TRS)

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