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Trieste

$396+ Cheap flights from San Francisco (SFO) 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — TRS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Find cheap flights from San Francisco to Trieste with Cheapflights

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Cheap flight deals from San Francisco to Trieste

Cheapest flights from San Francisco to Trieste
Explore the most affordable flight options available from San Francisco to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Travelocity deal was found by Cheapflights users on 1/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:20 am
SFO
-
TRS
2 stops17h 25m
Multiple Airlines
Wed 5/206:10 am
TRS
-
SFO
2 stops23h 52m
Multiple Airlines
Deal found 1/28$703
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:15 pm
SFO
-
TRS
1 stop22h 40m
ITA Airways
Wed 5/203:15 pm
TRS
-
SFO
1 stop31h 00m
ITA Airways
Deal found 1/28$707
This ITA Airways deal was found by Cheapflights users on 1/29. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:15 pm
SFO
-
TRS
1 stop14h 15m
ITA Airways
Wed 4/156:35 am
TRS
-
SFO
1 stop15h 50m
ITA Airways
Deal found 1/29$757
This ITA Airways deal was found by Cheapflights users on 1/29. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:10 am
SFO
-
TRS
2 stops19h 20m
ITA Airways
Tue 4/147:15 pm
TRS
-
SFO
1 stop27h 10m
ITA Airways
Deal found 1/29$761
This ITA Airways deal was found by Cheapflights users on 1/29. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:15 pm
SFO
-
TRS
1 stop14h 15m
ITA Airways
Mon 4/137:15 pm
TRS
-
SFO
1 stop27h 00m
ITA Airways
Deal found 1/29$785
This ITA Airways deal was found by Cheapflights users on 1/29. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:49 am
SFO
-
TRS
2 stops20h 41m
ITA Airways
Mon 4/137:15 pm
TRS
-
SFO
1 stop27h 00m
ITA Airways
Deal found 1/29$789
This KAYAK deal was found by Cheapflights users on 1/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:05 pm
SFO
-
TRS
2 stops16h 20m
Lufthansa
Wed 4/156:10 am
TRS
-
SFO
2 stops27h 09m
Lufthansa
Deal found 1/29$808
This Ovago deal was found by Cheapflights users on 1/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:57 pm
SFO
-
TRS
2 stops38h 58m
ITA Airways
Wed 2/256:35 am
TRS
-
SFO
2 stops21h 20m
ITA Airways
Deal found 1/28$824
This Ovago deal was found by Cheapflights users on 1/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/132:35 pm
SFO
-
TRS
1 stop15h 30m
Lufthansa
Fri 3/206:25 am
TRS
-
SFO
1 stop18h 30m
Lufthansa
Deal found 1/26$835
This KAYAK deal was found by Cheapflights users on 1/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:05 pm
SFO
-
TRS
2 stops16h 20m
Lufthansa
Tue 4/146:10 am
TRS
-
SFO
2 stops20h 02m
Lufthansa
Deal found 1/29$862
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:24 am
SFO
-
TRS
2 stops24h 06m
ITA Airways
Fri 3/66:35 am
TRS
-
SFO
2 stops21h 27m
ITA Airways
Deal found 1/28$865

Find flight deals from San Francisco to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$703
(Travelocity)

One-way from

$396
(Kiwi.com)
Provider with most accurate pricing for San Francisco-Trieste Ronchi dei Legionari flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Trieste Ronchi dei Legionari flights.
Search Deals
From San Francisco to Trieste Ronchi dei Legionari
Search Deals
One-way flight from San Francisco to Trieste Ronchi dei Legionari
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 January 29, 2026.
Use the filters below to find and compare flights from San Francisco to Trieste that are best for you.

Fly from

San Francisco

Fly to

Trieste

Route

Depart

Return

Price

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Tue 4/7

3:15 pm-2:30 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Fri 4/17

6:35 am-1:15 pm

1 stop15h 40m

$757

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Tue 4/7

3:15 pm-2:30 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Tue 4/14

7:15 pm-1:25 pm

1 stop27h 10m

$757

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Wed 4/1

10:10 am-2:30 pm

2 stops19h 20m

Trieste Ronchi dei Legionari

Tue 4/14

7:15 pm-1:25 pm

1 stop27h 10m

$761

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Mon 4/6

12:00 pm-2:30 pm

2 stops17h 30m

Trieste Ronchi dei Legionari

Thu 4/16

7:15 pm-1:15 pm

1 stop27h 00m

$761

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Sun 4/5

10:10 am-2:30 pm

2 stops19h 20m

Trieste Ronchi dei Legionari

Fri 4/17

6:35 am-1:15 pm

1 stop15h 40m

$761

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Wed 4/1

8:49 am-2:30 pm

2 stops20h 41m

Trieste Ronchi dei Legionari

Mon 4/13

7:15 pm-1:15 pm

1 stop27h 00m

$789

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Fri 3/13

2:35 pm-2:05 pm

1 stop15h 30m

Trieste Ronchi dei Legionari

Fri 3/20

6:25 am-4:55 pm

1 stop18h 30m

$835

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Mon 4/6

4:25 pm-6:30 pm

1 stop17h 05m

Trieste Ronchi dei Legionari

Wed 4/15

6:10 am-12:40 pm

1 stop15h 30m

$877

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Thu 4/2

8:49 am-10:55 pm

2 stops29h 06m

Trieste Ronchi dei Legionari

Fri 4/17

6:35 am-1:15 pm

1 stop15h 40m

$886

San FranciscoTrieste

SFO - TRS

SFOTRS

San Francisco

Thu 4/2

8:49 am-2:30 pm

2 stops20h 41m

Trieste Ronchi dei Legionari

Tue 4/14

7:15 pm-1:25 pm

1 stop27h 10m

$886

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 20 results
1
2

Compare providers for flights from San Francisco to Trieste

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Trieste in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Trieste flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Trieste flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Trieste flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from San Francisco 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 San Francisco to Trieste

What is the cheapest month to book a flight from San Francisco to Trieste?

Currently, October is the cheapest month in which you can book a flight from San Francisco to Trieste (average of $441). Flying from San Francisco to Trieste in June is currently the most expensive (average of $798). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 January 29, 2026.
See what other customers who have flown with Lufthansa and ITA Airways from San Francisco 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.
Lufthansa
6.8
Okay
7,756 reviews

Food

6.3

Boarding

7.0

Comfort

6.8

Crew

7.6

Entertainment

6.5

Overall

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
Lufthansa
6.8
Okay
7,756 reviews
Lufthansa
6.8
Okay
7,756 reviews

Food

6.3

Boarding

7.0

Comfort

6.8

Crew

7.6

Entertainment

6.5

Overall

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
ITA Airways
6.7
Okay
1,137 reviews
Lufthansa
6.8
Okay
7,756 reviews

Food

6.3

Boarding

7.0

Comfort

6.8

Crew

7.6

Entertainment

6.5

Overall

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.

Related info for your journey

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

  • How long is the flight from San Francisco to Trieste?

    A quick flight from San Francisco to Trieste can take about 14h 15m. ITA Airways provides one of the quickest options available for as low as $757. Airlines will cover a distance of 6049 mi.

  • What are the cheapest airlines flying from San Francisco to Trieste round-trip?

    Our cheapest airline available from San Francisco to Trieste is Lufthansa. Our recent data shows that you can find tickets from as low as $693 on this airline. An additional option worth looking into is ITA Airways, starting at $762.

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

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

  • How can I find direct flights from San Francisco to Trieste?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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.

  • What is the cheapest month to book a flight from San Francisco to Trieste?

    Currently, October is the cheapest month in which you can book a flight from San Francisco to Trieste (average of $441). Flying from San Francisco to Trieste in June is currently the most expensive (average of $798). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from San Francisco to Trieste

Discover the top 2 airlines that operate flights from San Francisco 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$693Average$1,459FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$762Average$1,191FlexibilityNo cancel feeOn-time81%

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