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$542+ Cheap flights from Trieste (TRS) to San Francisco (SFO)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — SFO
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Trieste to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) to San Francisco (SFO). 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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$640
(Lufthansa)

One-way from

$542
(oojo)

Popular in

November

Cheapest in

April

Average price

$675
Provider with most accurate pricing for Trieste Ronchi dei Legionari-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Trieste Ronchi dei Legionari-San Francisco flights.
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From Trieste Ronchi dei Legionari to San Francisco
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One-way flight from Trieste Ronchi dei Legionari to San Francisco
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Highest demand for flights based on searches. 13% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Trieste to San Francisco

Cheapest flights from Trieste to San Francisco
Explore the most affordable flight options available from Trieste to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Lufthansa deal was found by Cheapflights users on 3/31. 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.
Wed 4/166:30 amTRS - SFO
1 stop15h 10mLufthansa
Sun 4/207:15 pmSFO - TRS
1 stop18h 20mLufthansa
Deal found 3/31$640
This ITA Airways deal was found by Cheapflights users on 3/31. 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 4/166:35 amTRS - SFO
2 stops23h 17mITA Airways
Sun 4/2011:09 amSFO - TRS
2 stops18h 21mITA Airways
Deal found 3/31$747
This Expedia deal was found by Cheapflights users on 3/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:35 amTRS - SFO
2 stops21h 17mAir France
Sun 8/38:25 pmSFO - TRS
2 stops17h 30mAir France
Deal found 3/31$888
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/31. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/173:15 pmTRS - SFO
2 stops32h 15mTAP AIR PORTUGAL
Tue 9/26:45 pmSFO - TRS
3 stops38h 50mTAP AIR PORTUGAL
Deal found 3/31$1,111
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Tue 7/291:00 pmTRS - SFO
3 stops34h 30mMultiple Airlines
Sun 8/34:30 pmSFO - TRS
3 stops21h 25mMultiple Airlines
Deal found 3/31$1,357

Cheapflights Fare Finder

Customize your flight search to find flights from Trieste to San Francisco 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 March 31, 2025.
Use the filters below to find and compare flights from Trieste to San Francisco that are best for you.

Fly from

Trieste

Fly to

San Francisco

Route

Depart

Return

Price

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Wed 4/16

6:30 am-12:40 pm

1 stop15h 10m

San Francisco

Sun 4/20

7:15 pm-10:35 pm

1 stop18h 20m

$640

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Wed 4/16

6:35 am-8:52 pm

2 stops23h 17m

San Francisco

Sun 4/20

11:09 am-2:30 pm

2 stops18h 21m

$747

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 7/29

6:35 am-6:52 pm

2 stops21h 17m

San Francisco

Sun 8/3

8:25 pm-10:55 pm

2 stops17h 30m

$888

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sun 8/17

3:15 pm-2:30 pm

2 stops32h 15m

San Francisco

Tue 9/2

6:45 pm-6:35 pm

3 stops38h 50m

$1,111

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 7/29

1:00 pm-2:30 pm

3 stops34h 30m

San Francisco

Sun 8/3

4:30 pm-10:55 pm

3 stops21h 25m

$1,357

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 9/2

6:35 am-1:15 pm

1 stop15h 40m

$542

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sat 7/19

3:15 pm-10:35 am

2 stops28h 20m

$781

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 9/2

11:15 am-12:07 pm

3 stops33h 52m

$1,049

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 7/14

3:15 pm-4:45 pm

3 stops34h 30m

$1,234

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 7/1

3:15 pm-2:00 pm

2 stops55h 45m

$1,872

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Compare providers for flights from Trieste to San Francisco

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 Trieste to San Francisco in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 Trieste-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trieste-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Trieste-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trieste-San Francisco 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 Trieste-San Francisco 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 Trieste to San Francisco

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

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

Currently, January is the cheapest month in which you can book a flight from Trieste to San Francisco (average of $276). Flying from Trieste to San Francisco in June is currently the most expensive (average of $393). 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.

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

Find hourly flight availability from Trieste to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 20% on flights from Trieste to San Francisco by exploring options for tickets in the morning.

Rainfall in San Francisco by month

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

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

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

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated March 31, 2025.
Emirates
8.0
Very good
3,192 reviews

Crew

8.3

Entertainment

8.2

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.0
Very good
3,192 reviews
Emirates
8.0
Very good
3,192 reviews

Crew

8.3

Entertainment

8.2

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Air France
7.4
Good
1,425 reviews
Emirates
8.0
Very good
3,192 reviews

Crew

8.3

Entertainment

8.2

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Turkish Airlines
7.3
Good
3,748 reviews
Emirates
8.0
Very good
3,192 reviews

Crew

8.3

Entertainment

8.2

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
TAP AIR PORTUGAL
7.1
Good
1,831 reviews
Emirates
8.0
Very good
3,192 reviews

Crew

8.3

Entertainment

8.2

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Icelandair
7.0
Good
476 reviews
Emirates
8.0
Very good
3,192 reviews

Crew

8.3

Entertainment

8.2

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Related info for your journey

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

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

    Our cheapest airline available from Trieste to San Francisco is Lufthansa. Our recent data shows that you can find tickets from as low as $640 on this airline. Additional options worth looking into are ITA Airways and Air France, starting at $747 and $888 round-trip. Lufthansa is priced at 13% lower than the current average price of a flight leaving 3 months from now.

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

    $542 is the cheapest one-way deal found within the past few days, from ITA Airways. You may also be able to find cheap deals on Turkish Airlines and Icelandair, with prices starting from $781 and $1,049, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trieste to San Francisco 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 Trieste to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Trieste to San Francisco (average of $276). Flying from Trieste to San Francisco in June is currently the most expensive (average of $393). 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

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Roseville
Mountain View
Santa Cruz
Turlock
Fairfield
South San Francisco
Manteca
Sausalito
Richmond
Watsonville
Hollister
Milpitas
Antioch
Hayward
Vallejo
Newark
Alameda
Sunnyvale
Campbell
Daly City

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Top airline flying from Trieste to San Francisco

Discover the top airline that operate flights from Trieste to San Francisco. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$508Average$763FlexibilityNo cancel feeOn-time76%
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