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 $737 on this airline. Additional options worth looking into are Delta and ITA Airways, starting at $751 and $812 round-trip. Lufthansa is priced at 4% 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?

$697 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on ITA Airways and TAP AIR PORTUGAL, with prices starting from $731 and $1,248, respectively.

What is the cheapest day to fly from Trieste to San Francisco?

Travelers seeking maximum savings on their Trieste to San Francisco flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Trieste to San Francisco?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 37% on the overall cost on flights from Trieste to San Francisco.

What is the cheapest month to fly from Trieste to San Francisco?

Our data shows that March tends to be the cheapest month to fly to San Francisco from Trieste. Users have commonly found prices around $770 for the month, but tickets can be as low as $568. Due to multiple factors, prepare for potentially higher prices in September.

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.

$697+ Flights from Trieste to San Francisco

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Cheap flight deals from Trieste to San Francisco

Round-trip from	$737 (Lufthansa)
One-way from	$697 (FlightHub)
Popular in	September
Cheapest in	March
Average price	$635

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. 9% potential increase in price ($82 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Tue 12/306:10 amTRS - SFO

1 stop15h 25mLufthansa

Wed 1/77:15 amSFO - TRS

2 stops21h 50mLufthansa

Deal found 6/10

$714

Thu 7/1711:15 amTRS - SFO

2 stops21h 20mDelta

Mon 7/219:35 amSFO - TRS

2 stops19h 55mDelta

Deal found 6/11

$751

Fri 6/136:35 amTRS - SFO

1 stop15h 50mITA Airways

Thu 6/193:48 pmSFO - TRS

2 stops41h 42mITA Airways

Deal found 6/10

$807

Thu 6/196:35 amTRS - SFO

3 stops47h 15mMultiple Airlines

Tue 6/247:30 amSFO - TRS

2 stops30h 25mMultiple Airlines

Deal found 6/11

$1,212

Sun 8/173:15 pmTRS - SFO

2 stops32h 15mTAP AIR PORTUGAL

Tue 9/26:45 pmSFO - TRS

3 stops38h 50mTAP AIR PORTUGAL

Deal found 6/11

$1,215

Best flights from Trieste to San Francisco
Discover carefully curated flight deals from Trieste to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Thu 7/172:45 pmTRS - SFO

2 stops53h 01mLufthansa

Mon 7/211:20 pmSFO - TRS

1 stop24h 05mLufthansa

Deal found 6/11

$737

Thu 7/1711:15 amTRS - SFO

2 stops21h 20mDelta

Mon 7/219:35 amSFO - TRS

2 stops19h 55mDelta

Deal found 6/11

$751

Thu 7/176:35 amTRS - SFO

1 stop15h 50mITA Airways

Mon 7/213:15 pmSFO - TRS

1 stop18h 15mITA Airways

Deal found 6/11

$812

Sun 8/173:15 pmTRS - SFO

2 stops32h 15mTAP AIR PORTUGAL

Tue 9/26:45 pmSFO - TRS

3 stops38h 50mTAP AIR PORTUGAL

Deal found 6/11

$1,215

Thu 7/179:30 amTRS - SFO

3 stops22h 43mMultiple Airlines

Mon 7/218:30 pmSFO - TRS

3 stops33h 00mMultiple Airlines

Deal found 6/11

$1,260

Last-minute flights from Trieste to San Francisco
Discover last-minute flight deals from Trieste to San Francisco. Data last updated June 12, 2025 and is based on user searches.

Fri 6/136:35 amTRS - SFO

1 stop15h 50mITA Airways

Thu 6/193:48 pmSFO - TRS

2 stops41h 42mITA Airways

Deal found 6/10

$807

Thu 6/196:35 amTRS - SFO

1 stop15h 50mITA Airways

Tue 6/243:15 pmSFO - TRS

1 stop22h 40mITA Airways

Deal found 6/11

$819

Thu 6/196:35 amTRS - SFO

3 stops47h 15mMultiple Airlines

Tue 6/247:30 amSFO - TRS

2 stops30h 25mMultiple Airlines

Deal found 6/11

$1,212

Thu 7/172:45 pmTRS - SFO

2 stops53h 01mLufthansa

Mon 7/211:20 pmSFO - TRS

1 stop24h 05mLufthansa

Deal found 6/11

$737

Thu 7/1711:15 amTRS - SFO

2 stops21h 20mDelta

Mon 7/219:35 amSFO - TRS

2 stops19h 55mDelta

Deal found 6/11

$751

One-way flights from Trieste to San Francisco
Search for one-way flight options from Trieste to San Francisco. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Mon 8/186:35 amTRS - SFO

2 stops43h 05mTurkish Airlines

Deal found 6/10

$697

Wed 7/27:15 pmTRS - SFO

1 stop27h 10mITA Airways

Deal found 6/10

$731

Mon 8/183:15 pmTRS - SFO

3 stops34h 30mTAP AIR PORTUGAL

Deal found 6/10

$1,248

Mon 8/183:15 pmTRS - SFO

3 stops34h 30mMultiple Airlines

Deal found 6/11

$1,258

Cheapflights Fare Finder

Use the filters below to find and compare flights from Trieste to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Thu 7/17

2:45 pm-10:46 am

2 stops53h 01m

San Francisco

Mon 7/21

1:20 pm-10:25 pm

1 stop24h 05m

$737

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Thu 7/17

11:15 am-11:35 pm

2 stops21h 20m

San Francisco

Mon 7/21

9:35 am-2:30 pm

2 stops19h 55m

$751

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Thu 7/17

6:35 am-1:25 pm

1 stop15h 50m

San Francisco

Mon 7/21

3:15 pm-6:30 pm

1 stop18h 15m

$812

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

$1,215

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Thu 7/17

9:30 am-11:13 pm

3 stops22h 43m

San Francisco

Mon 7/21

8:30 pm-2:30 pm

3 stops33h 00m

$1,260

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 8/18

6:35 am-4:40 pm

2 stops43h 05m

$697

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Wed 7/2

7:15 pm-1:25 pm

1 stop27h 10m

$731

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 8/18

3:15 pm-4:45 pm

3 stops34h 30m

$1,248

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Mon 8/18

3:15 pm-4:45 pm

3 stops34h 30m

$1,258

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 $364). 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?

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

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

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

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Turkish Airlines

7.3

Good

3,848 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

TAP AIR PORTUGAL

7.1

Good

1,885 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Lufthansa

6.8

Okay

7,136 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

ITA Airways

6.7

Okay

990 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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 $737 on this airline. Additional options worth looking into are Delta and ITA Airways, starting at $751 and $812 round-trip. Lufthansa is priced at 4% 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?
$697 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on ITA Airways and TAP AIR PORTUGAL, with prices starting from $731 and $1,248, 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 $364). 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

Roseville

Mountain View

South San Francisco

Livermore

Turlock

Santa Cruz

Manteca

Fairfield

Watsonville

Antioch

Hollister

Milpitas

Newark

Hayward

Alameda

Sunnyvale

Daly City

Union City

Campbell

Capitola

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Trieste to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$658	Average$798	FlexibilityNo cancel fee	On-time76%

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$697+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Trieste to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Trieste to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Trieste to San Francisco

Cheapest flights from Trieste to San FranciscoExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Trieste to San Francisco that are best for you.

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.

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?

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 June 12, 2025.

Rainfall in San Francisco by month

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

Temperature in San Francisco by month

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

Reviews of airlines servicing San Francisco

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?

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

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

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

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

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

Traveling to a place near Trieste?

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Alternative routes for Trieste to San Francisco

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Top airline flying from Trieste to San Francisco

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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 June 12, 2025.