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Cheap flights from Trieste to San Francisco from $545

1 adult
1 adult, Economy, 0 bags

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 - 1:10 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
15h 35m1 stop Rome Fiumicino
ITA Airways Logo
3:05 pm - 6:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
18h 25m1 stop Rome Fiumicino
$978ITA Airways
Thu, Dec 17 - Tue, Jan 5
Multiple Airlines Logo
6:35 am - 8:08 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
22h 33m2 stops Rome Fiumicino Los Angeles
Multiple Airlines Logo
3:05 pm - 6:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
18h 25m1 stop Rome Fiumicino
$1,033Multiple Airlines
Thu, Dec 17 - Tue, Jan 5
ITA Airways Logo
6:35 am - 1:10 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
15h 35m1 stop Rome Fiumicino
ITA Airways Logo
3:05 pm - 10:55 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
22h 50m1 stop Rome Fiumicino
$1,181ITA Airways
Thu, Dec 17 - Sun, Jan 3
Multiple Airlines Logo
6:35 am - 8:08 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
22h 33m2 stops Rome Fiumicino Los Angeles
Multiple Airlines Logo
3:05 pm - 2:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
14h 25m1 stop Rome Fiumicino
$1,186Multiple Airlines
Thu, Dec 17 - Sun, Jan 3
Multiple Airlines Logo
6:35 am - 8:08 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
22h 33m2 stops Rome Fiumicino Los Angeles
Multiple Airlines Logo
6:01 am - 10:25 amSFO  San Francisco-TRS Trieste Ronchi dei Legionari
19h 24m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
$1,317Multiple Airlines
Thu, Dec 17 - Tue, Jan 5
Multiple Airlines Logo
11:15 am - 7:25 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
41h 10m2 stops Rome Fiumicino Washington, D.C. Dulles Intl
Multiple Airlines Logo
10:13 am - 2:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
19h 17m2 stops Los Angeles Rome Fiumicino
$1,342Multiple Airlines
Mon, Jan 4 - Sat, Jan 30
United Airlines Logo
6:35 am - 5:35 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
20h 00m2 stops Rome Fiumicino Chicago O'Hare Intl
United Airlines Logo
5:00 am - 10:25 amSFO  San Francisco-TRS Trieste Ronchi dei Legionari
20h 25m2 stops Chicago O'Hare Intl Rome Fiumicino
$1,379United Airlines
Thu, Dec 17 - Sun, Jan 3
Lufthansa Logo
11:15 am - 2:50 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
36h 35m2 stops Rome Fiumicino Munich Franz Josef Strauss
Lufthansa Logo
1:40 pm - 6:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
19h 50m2 stops Munich Franz Josef Strauss Rome Fiumicino
$1,432Lufthansa
Mon, Jan 4 - Sat, Jan 30
Multiple Airlines Logo
7:15 pm - 1:10 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
26h 55m1 stop Rome Fiumicino
Multiple Airlines Logo
6:18 am - 2:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
23h 12m2 stops Los Angeles Rome Fiumicino
$1,517Multiple Airlines
Mon, Jan 4 - Sat, Jan 30
Multiple Airlines Logo
7:15 pm - 1:10 pmTRS  Trieste Ronchi dei Legionari-SFO San Francisco
26h 55m1 stop Rome Fiumicino
Multiple Airlines Logo
6:18 am - 2:30 pmSFO  San Francisco-TRS Trieste Ronchi dei Legionari
23h 12m2 stops Los Angeles Rome Fiumicino
$1,519Multiple Airlines
Mon, Jan 4 - Sat, Jan 30

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ITA Airways flights from Trieste to San Francisco

Our best ITA Airways deals on Trieste to San Francisco flight tickets
ITA Airways
Nov 5
TRS6:35 amTrieste Ronchi dei Legionari
15h 35m
1 stop
SFO1:10 pmSan Francisco
Nov 10
SFO3:05 pmSan Francisco
34h 20m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
$547
ITA Airways
Dec 17
TRS6:35 amTrieste Ronchi dei Legionari
15h 35m
1 stop
SFO1:10 pmSan Francisco
Jan 5
SFO3:05 pmSan Francisco
18h 25m
1 stop
TRS6:30 pmTrieste Ronchi dei Legionari
$978
ITA Airways
Dec 17
TRS6:35 amTrieste Ronchi dei Legionari
15h 35m
1 stop
SFO1:10 pmSan Francisco
Jan 3
SFO3:05 pmSan Francisco
22h 50m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
$1,181

United Airlines flights from Trieste to San Francisco

Our best United Airlines deals on Trieste to San Francisco flight tickets
United Airlines
Dec 17
TRS6:35 amTrieste Ronchi dei Legionari
20h 00m
2 stops
SFO5:35 pmSan Francisco
Jan 3
SFO5:00 amSan Francisco
20h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
$1,379
United Airlines
Nov 23
TRS6:35 amTrieste Ronchi dei Legionari
22h 28m
2 stops
SFO8:03 pmSan Francisco
Nov 30
SFO5:00 amSan Francisco
20h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
$1,780
United Airlines
Nov 12
TRS6:35 amTrieste Ronchi dei Legionari
23h 54m
2 stops
SFO9:29 pmSan Francisco
Nov 16
SFO9:30 pmSan Francisco
27h 55m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
$2,154

momondo Fare Finder

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

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Price

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Quickest round-trip

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Thu 12/17

6:35 am-1:10 pm

1 stop15h 35m

San Francisco

Tue 1/5

3:05 pm-6:30 pm

1 stop18h 25m

$978

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Thu 12/17

6:35 am-8:08 pm

2 stops22h 33m

San Francisco

Tue 1/5

3:05 pm-6:30 pm

1 stop18h 25m

$1,033

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Thu 12/17

6:35 am-1:10 pm

1 stop15h 35m

San Francisco

Sun 1/3

3:05 pm-10:55 pm

1 stop22h 50m

$1,181

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Thu 12/17

6:35 am-8:08 pm

2 stops22h 33m

San Francisco

Sun 1/3

3:05 pm-2:30 pm

1 stop14h 25m

$1,186

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Thu 12/17

6:35 am-8:08 pm

2 stops22h 33m

San Francisco

Tue 1/5

6:01 am-10:25 am

2 stops19h 24m

$1,317

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Mon 1/4

11:15 am-7:25 pm

2 stops41h 10m

San Francisco

Sat 1/30

10:13 am-2:30 pm

2 stops19h 17m

$1,342

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Thu 12/17

6:35 am-5:35 pm

2 stops20h 00m

San Francisco

Sun 1/3

5:00 am-10:25 am

2 stops20h 25m

$1,379

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Mon 1/4

11:15 am-2:50 pm

2 stops36h 35m

San Francisco

Sat 1/30

1:40 pm-6:30 pm

2 stops19h 50m

$1,432

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Mon 1/4

7:15 pm-1:10 pm

1 stop26h 55m

San Francisco

Sat 1/30

6:18 am-2:30 pm

2 stops23h 12m

$1,517

TriesteSan Francisco

TRS Trieste Ronchi dei Legionari - SFO San Francisco

TRSSFO

Trieste Ronchi dei Legionari

Mon 1/4

7:15 pm-1:10 pm

1 stop26h 55m

San Francisco

Sat 1/30

6:18 am-2:30 pm

2 stops23h 12m

$1,519

Flights are sorted by cheapest round-trip flights 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 September is also cheap. Prices for this month can be found on momondo for an average of $571.

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

You could potentially save up to 34% 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

Best Price Found

$672

Fastest flight time

15h 35m

Direct flights

None
The best one-way flight to San Francisco from Trieste in the past 72 hours is $672. The best round-trip flight deal from Trieste to San Francisco found on momondo in the last 72 hours is $978.
The fastest flight from Trieste to San Francisco takes 15h 35m
There are no direct flights from Trieste to San Francisco. There are no popular flight routes from Trieste to San Francisco.
Search flight deals

Frequently asked questions about flying from Trieste to San Francisco

  • 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 6057.7 mi. A reasonable flight in good conditions will take 15h 35m.

  • 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 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.

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
South San Francisco
Hayward
Santa Clara
Walnut Creek
Bodega Bay
Fremont
Berkeley
Sunnyvale
Half Moon Bay
Vallejo
Roseville
Salinas
Sonoma
Milpitas
Palo Alto
Daly City
Pacific Grove

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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