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Trieste

$214+ Cheap flights from California to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — TRS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from California to Trieste

Keep the following information in mind while searching for California to Trieste flight deals. Data was last updated June 12, 2025.

Round-trip from

$490
(Delta)

One-way from

$214
(Kiwi.com)
From California to Trieste Ronchi dei Legionari
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One-way flight from California to Trieste Ronchi dei Legionari
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Find flight deals from California to Trieste

Cheapest flights from California to Trieste
Explore the most affordable flight options available from California to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:00 amLAX - TRS
2 stops42h 25mDelta
Tue 9/166:35 amTRS - LAX
2 stops25h 49mDelta
Deal found 6/10$490
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/82:55 pmLAX - TRS
1 stop14h 10mLufthansa
Thu 9/186:30 amTRS - LAX
1 stop15h 30mLufthansa
Deal found 6/11$609
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/303:15 pmLAX - TRS
1 stop18h 15mITA Airways
Wed 8/136:35 amTRS - LAX
2 stops19h 38mITA Airways
Deal found 6/12$760
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/74:40 pmLAX - TRS
2 stops40h 55mTAP AIR PORTUGAL
Thu 9/183:15 pmTRS - LAX
2 stops32h 20mTAP AIR PORTUGAL
Deal found 6/10$783
This Justfly.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:35 pmLAX - TRS
2 stops18h 20mMultiple Airlines
Wed 9/176:35 amTRS - LAX
2 stops18h 55mMultiple Airlines
Deal found 6/10$857
This Lufthansa deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/132:40 pmSFO - TRS
1 stop22h 55mLufthansa
Tue 7/226:30 amTRS - SFO
1 stop15h 10mLufthansa
Deal found 6/11$925
This United deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/31:20 pmSFO - TRS
1 stop24h 05mMultiple Airlines
Thu 7/106:30 amTRS - SFO
1 stop15h 10mMultiple Airlines
Deal found 6/10$988
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:00 pmSFO - TRS
2 stops27h 25mDelta
Thu 7/1711:15 amTRS - SFO
2 stops21h 20mDelta
Deal found 6/10$995
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:55 amSFO - TRS
2 stops18h 35mITA Airways
Thu 7/177:15 pmTRS - SFO
1 stop27h 10mITA Airways
Deal found 6/10$1,016
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/259:12 amLAS - TRS
2 stops28h 43mMultiple Airlines
Fri 8/16:20 amTRS - LAS
3 stops47h 11mMultiple Airlines
Deal found 6/10$1,062
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/257:10 amLAS - TRS
2 stops22h 20mDelta
Fri 8/16:35 amTRS - LAS
2 stops26h 36mDelta
Deal found 6/10$1,094
This Lufthansa deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2210:05 amSMF - TRS
2 stops19h 00mLufthansa
Mon 10/66:30 amTRS - SMF
2 stops20h 33mLufthansa
Deal found 6/11$1,174

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from California to Trieste that are best for you.

Fly from

California

Fly to

Trieste

Route

Depart

Return

Price

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Sun 9/7

7:00 am-10:25 am

2 stops42h 25m

Trieste Ronchi dei Legionari

Tue 9/16

6:35 am-11:24 pm

2 stops25h 49m

$490

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Mon 9/8

2:55 pm-2:05 pm

1 stop14h 10m

Trieste Ronchi dei Legionari

Thu 9/18

6:30 am-1:00 pm

1 stop15h 30m

$609

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Wed 7/30

3:15 pm-6:30 pm

1 stop18h 15m

Trieste Ronchi dei Legionari

Wed 8/13

6:35 am-5:13 pm

2 stops19h 38m

$760

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Sun 9/7

4:40 pm-6:35 pm

2 stops40h 55m

Trieste Ronchi dei Legionari

Thu 9/18

3:15 pm-2:35 pm

2 stops32h 20m

$783

Los AngelesTrieste

LAX - TRS

LAXTRS

Los Angeles

Sun 9/7

7:35 pm-10:55 pm

2 stops18h 20m

Trieste Ronchi dei Legionari

Wed 9/17

6:35 am-4:30 pm

2 stops18h 55m

$857

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sun 7/13

2:40 pm-10:35 pm

1 stop22h 55m

Trieste Ronchi dei Legionari

Tue 7/22

6:30 am-12:40 pm

1 stop15h 10m

$925

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Thu 7/3

1:20 pm-10:25 pm

1 stop24h 05m

Trieste Ronchi dei Legionari

Thu 7/10

6:30 am-12:40 pm

1 stop15h 10m

$988

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Thu 7/10

10:00 pm-10:25 am

2 stops27h 25m

Trieste Ronchi dei Legionari

Thu 7/17

11:15 am-11:35 pm

2 stops21h 20m

$995

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Thu 7/10

10:55 am-2:30 pm

2 stops18h 35m

Trieste Ronchi dei Legionari

Thu 7/17

7:15 pm-1:25 pm

1 stop27h 10m

$1,016

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Fri 7/25

9:12 am-10:55 pm

2 stops28h 43m

Trieste Ronchi dei Legionari

Fri 8/1

6:20 am-8:31 pm

3 stops47h 11m

$1,062

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 33 results
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Best time to book a flight from California to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from California with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from CA to TRS?

Find hourly flight availability from California to Trieste. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from California to Trieste, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Trieste by month

Plan your trip to Trieste by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

Temperature in Trieste by month

Plan your trip to Trieste by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trieste, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated June 12, 2025.
See what other customers who have flown with Emirates, Delta and Austrian Airlines from California to Trieste have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Delta
8.0
Very good
7,950 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Austrian Airlines
7.6
Good
802 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,848 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
TAP AIR PORTUGAL
7.1
Good
1,885 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from California to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trieste from California?

    Located just 18.2 mi from the city center, Trieste Ronchi dei Legionari (TRS) is the airport most travelers will use when flying to Trieste from California.

  • What are the cheapest airlines to fly from California to Trieste one-way?

    The cheapest airlines for a one-way flight from California to Trieste are Lufthansa ($432), Delta ($529), and Austrian Airlines ($648).

  • What are the most popular routes from California to Trieste?

    When deciding which route to take from California to Trieste consider San Francisco - Trieste Ronchi dei Legionari, Los Angeles - Trieste Ronchi dei Legionari or San Jose - Trieste Ronchi dei Legionari as they are the most popular.

  • Can I find deals for flights from California to Trieste that include hotel bookings?

    Yes. In addition to deals on California to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Trieste.

  • Can I find deals for business class flights from California to Trieste?

    Yes. Cheapflights offers flight deals from California to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 2 airlines flying from California to Trieste

Discover the top 2 airlines that operate flights from California to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$599Average$1,133FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$693Average$1,346FlexibilityNo cancel feeOn-time76%

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