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Cheap flights from Trieste to San Francisco from $529

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Trieste to San Francisco departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Trieste to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
3:15 pm - 10:55 pm
SFO
-
TRS
22h 40m
1 stop
$529ITA Airways
Fri, May 1 - Sat, May 9
ITA Airways Logo
6:35 am - 6:56 pm
TRS
-
SFO
21h 21m
2 stops
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$531ITA Airways
Fri, May 1 - Sat, May 9
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$537ITA Airways
Tue, Apr 21 - Tue, Apr 28
ITA Airways Logo
6:35 am - 6:57 pm
TRS
-
SFO
21h 22m
2 stops
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$540ITA Airways
Tue, Apr 21 - Tue, Apr 28
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
5:30 am - 10:25 am
SFO
-
TRS
19h 55m
2 stops
$555ITA Airways
Sat, Apr 25 - Sat, May 2
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
3:15 pm - 10:25 am
SFO
-
TRS
34h 10m
1 stop
$558ITA Airways
Sat, Apr 25 - Sat, May 2
ITA Airways Logo
6:35 am - 5:12 pm
TRS
-
SFO
19h 37m
2 stops
ITA Airways Logo
12:00 pm - 2:30 pm
SFO
-
TRS
17h 30m
2 stops
$561ITA Airways
Tue, Apr 21 - Tue, Apr 28
ITA Airways Logo
7:15 pm - 1:15 pm
TRS
-
SFO
27h 00m
1 stop
ITA Airways Logo
3:15 pm - 2:30 pm
SFO
-
TRS
14h 15m
1 stop
$584ITA Airways
Tue, Apr 28 - Fri, May 8
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
12:00 pm - 10:55 pm
SFO
-
TRS
25h 55m
2 stops
$585ITA Airways
Wed, Apr 15 - Sun, Apr 19
ITA Airways Logo
6:35 am - 1:15 pm
TRS
-
SFO
15h 40m
1 stop
ITA Airways Logo
6:30 am - 2:30 pm
SFO
-
TRS
23h 00m
2 stops
$587ITA Airways
Wed, Apr 29 - Tue, May 12

ITA Airways flights from Trieste to San Francisco

Our best ITA Airways deals on Trieste to San Francisco flight tickets
ITA Airways
May 1
TRS6:35 amTrieste Ronchi dei Legionari
15h 40m
1 stop
SFO1:15 pmSan Francisco
May 9
SFO3:15 pmSan Francisco
22h 40m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
$529
ITA Airways
May 1
TRS6:35 amTrieste Ronchi dei Legionari
21h 21m
2 stops
SFO6:56 pmSan Francisco
May 9
SFO3:15 pmSan Francisco
14h 15m
1 stop
TRS2:30 pmTrieste Ronchi dei Legionari
$531
ITA Airways
Mar 16
TRS6:35 amTrieste Ronchi dei Legionari
15h 30m
1 stop
SFO2:05 pmSan Francisco
Mar 23
SFO4:05 pmSan Francisco
22h 50m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
$536

Lufthansa flights from Trieste to San Francisco

Our best Lufthansa deals on Trieste to San Francisco flight tickets
Lufthansa
May 4
TRS6:10 amTrieste Ronchi dei Legionari
15h 30m
1 stop
SFO12:40 pmSan Francisco
May 11
SFO2:40 pmSan Francisco
22h 45m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
$596
Lufthansa
May 2
TRS6:15 amTrieste Ronchi dei Legionari
18h 10m
1 stop
SFO3:25 pmSan Francisco
May 8
SFO1:40 pmSan Francisco
23h 15m
1 stop
TRS9:55 pmTrieste Ronchi dei Legionari
$605
Lufthansa
May 2
TRS6:15 amTrieste Ronchi dei Legionari
17h 15m
2 stops
SFO2:30 pmSan Francisco
May 9
SFO1:40 pmSan Francisco
23h 35m
1 stop
TRS10:15 pmTrieste Ronchi dei Legionari
$651

momondo 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, momondo users made 832,500 searches. Data last updated March 11, 2026.
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

Cheapest round-trip

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Fri 5/1

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

Sat 5/9

3:15 pm-10:55 pm

1 stop22h 40m

$529

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Fri 5/1

6:35 am-6:56 pm

2 stops21h 21m

San Francisco

Sat 5/9

3:15 pm-2:30 pm

1 stop14h 15m

$531
Quickest round-trip

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 4/21

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

Tue 4/28

3:15 pm-2:30 pm

1 stop14h 15m

$537

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 4/21

6:35 am-6:57 pm

2 stops21h 22m

San Francisco

Tue 4/28

3:15 pm-2:30 pm

1 stop14h 15m

$540

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sat 4/25

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

Sat 5/2

5:30 am-10:25 am

2 stops19h 55m

$555

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Sat 4/25

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

Sat 5/2

3:15 pm-10:25 am

1 stop34h 10m

$558

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 4/21

6:35 am-5:12 pm

2 stops19h 37m

San Francisco

Tue 4/28

12:00 pm-2:30 pm

2 stops17h 30m

$561

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Tue 4/28

7:15 pm-1:15 pm

1 stop27h 00m

San Francisco

Fri 5/8

3:15 pm-2:30 pm

1 stop14h 15m

$584

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Wed 4/15

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

Sun 4/19

12:00 pm-10:55 pm

2 stops25h 55m

$585

TriesteSan Francisco

TRS - SFO

TRSSFO

Trieste Ronchi dei Legionari

Wed 4/29

6:35 am-1:15 pm

1 stop15h 40m

San Francisco

Tue 5/12

6:30 am-2:30 pm

2 stops23h 00m

$587

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Trieste to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $650.

Can stopping save me money on Trieste to San Francisco flights?

You could potentially save up to 14% on your flight if you consider stops on a Trieste to San Francisco flight.

When to book flights from Trieste to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Trieste to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Trieste to San Francisco (TRS to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trieste to San Francisco

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from Trieste to San Francisco takes 14h 05m
There are no direct flights from Trieste to San Francisco. There are no popular flight routes from Trieste to San Francisco.
Search flight deals

  • How far is Trieste Ronchi dei Legionari to San Francisco by plane?

    A flight from Trieste Ronchi dei Legionari to San Francisco will travel around 6057.3 mi. A reasonable flight in good conditions will take 14h 05m.

  • When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to San Francisco Airport?

    Prices for flights from Trieste Ronchi dei Legionari Airport to San Francisco Airport were last updated today.

  • How many operators does momondo search for flights from Trieste Ronchi dei Legionari Airport to San Francisco Airport?

  • How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trieste Ronchi dei Legionari Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Trieste to San Francisco?

Best airlines flying from Trieste to San Francisco

Compare and see reviews for airlines that fly from Trieste to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $653Free CancellationRating
6.8
7,843 reviews
Search Lufthansa flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Walnut Creek
Hayward
Berkeley
Santa Clara
Big Sur
Fremont
Calistoga
Vallejo
Salinas
Half Moon Bay
Daly City
South San Francisco
Pacific Grove
Milpitas

Why use momondo?

Why should I use momondo to find a flight deal from Trieste to San Francisco?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Trieste to San Francisco. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Trieste to San Francisco with flexible booking policies on momondo?

All flight searches from Trieste to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Trieste to San Francisco?

momondo helps you find the best flight between Trieste and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Trieste to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Trieste to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

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