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Cheap flights from San Diego to Trieste from $574

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Trieste departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Diego to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
12:55 pm - 10:30 pmSAN-TRS
24h 35m2 stops
Lufthansa Logo
2:40 pm - 10:44 pmTRS-SAN
41h 04m2 stops
$574Lufthansa
Find Deal
Thu, Feb 26 - Mon, Mar 2
Lufthansa Logo
7:00 am - 2:05 pmSAN-TRS
22h 05m2 stops
Lufthansa Logo
6:25 am - 5:53 pmTRS-SAN
19h 28m2 stops
$686Lufthansa
Find Deal
Thu, Mar 5 - Sat, Mar 14
Multiple Airlines Logo
2:16 pm - 10:40 pmSAN-TRS
23h 24m2 stops
Multiple Airlines Logo
3:00 pm - 6:50 pmTRS-SAN
36h 50m2 stops
$795Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
Lufthansa Logo
10:45 am - 1:55 pmSAN-TRS
18h 10m2 stops
Lufthansa Logo
2:40 pm - 8:27 pmTRS-SAN
38h 47m2 stops
$893Lufthansa
Find Deal
Thu, Apr 2 - Mon, Apr 6
United Airlines Logo
7:05 am - 10:25 amSAN-TRS
18h 20m2 stops
United Airlines Logo
6:35 am - 8:49 pmTRS-SAN
23h 14m3 stops
$1,326United Airlines
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Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
7:05 am - 10:25 amSAN-TRS
18h 20m2 stops
United Airlines Logo
6:35 am - 8:49 pmTRS-SAN
23h 14m3 stops
$1,327United Airlines
Find Deal
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
5:35 pm - 9:10 pmSAN-TRS
18h 35m2 stops
Multiple Airlines Logo
3:00 pm - 4:45 pmTRS-SAN
33h 45m3 stops
$1,360Multiple Airlines
Find Deal
Thu, Mar 5 - Sat, Mar 14
Multiple Airlines Logo
12:08 pm - 10:40 pmSAN-TRS
25h 32m2 stops
Multiple Airlines Logo
11:15 am - 3:45 pmTRS-SAN
61h 30m2 stops
$1,554Multiple Airlines
Find Deal
Wed, Dec 17 - Tue, Jan 6
Multiple Airlines Logo
2:16 pm - 10:40 pmSAN-TRS
23h 24m2 stops
Multiple Airlines Logo
6:15 am - 8:49 pmTRS-SAN
23h 34m3 stops
$1,882Multiple Airlines
Find Deal
Wed, Dec 17 - Tue, Jan 6
Multiple Airlines Logo
5:35 pm - 12:20 pmSAN-TRS
33h 45m3 stops
Multiple Airlines Logo
2:40 pm - 3:45 pmTRS-SAN
34h 05m3 stops
$2,958Multiple Airlines
Find Deal
Wed, Dec 17 - Tue, Jan 6

United Airlines flights from San Diego to Trieste

Our best United Airlines deals on San Diego to Trieste flight tickets
United Airlines
Feb 26
SAN7:05 amSan Diego
18h 20m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 2
TRS6:35 amTrieste Ronchi dei Legionari
23h 14m
3 stops
SAN8:49 pmSan Diego
$1,326
Find similar
United Airlines
Feb 26
SAN7:05 amSan Diego
18h 20m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 2
TRS6:35 amTrieste Ronchi dei Legionari
23h 14m
3 stops
SAN8:49 pmSan Diego
$1,327
Find similar

Lufthansa flights from San Diego to Trieste

Our best Lufthansa deals on San Diego to Trieste flight tickets
Lufthansa
Feb 26
SAN12:55 pmSan Diego
24h 35m
2 stops
TRS10:30 pmTrieste Ronchi dei Legionari
Mar 2
TRS2:40 pmTrieste Ronchi dei Legionari
41h 04m
2 stops
SAN10:44 pmSan Diego
$574
Find similar
Lufthansa
Mar 5
SAN7:00 amSan Diego
22h 05m
2 stops
TRS2:05 pmTrieste Ronchi dei Legionari
Mar 14
TRS6:25 amTrieste Ronchi dei Legionari
19h 28m
2 stops
SAN5:53 pmSan Diego
$686
Find similar
Lufthansa
Apr 2
SAN10:45 amSan Diego
18h 10m
2 stops
TRS1:55 pmTrieste Ronchi dei Legionari
Apr 6
TRS2:40 pmTrieste Ronchi dei Legionari
38h 47m
2 stops
SAN8:27 pmSan Diego
$893
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego 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, momondo users made 832,500 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from San Diego to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 2/26

12:55 pm-10:30 pm

2 stops24h 35m

Trieste Ronchi dei Legionari

Mon 3/2

2:40 pm-10:44 pm

2 stops41h 04m

$574

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 3/5

7:00 am-2:05 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Sat 3/14

6:25 am-5:53 pm

2 stops19h 28m

$686

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Wed 11/19

2:16 pm-10:40 pm

2 stops23h 24m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-6:50 pm

2 stops36h 50m

$795

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 4/2

10:45 am-1:55 pm

2 stops18h 10m

Trieste Ronchi dei Legionari

Mon 4/6

2:40 pm-8:27 pm

2 stops38h 47m

$893

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 2/26

7:05 am-10:25 am

2 stops18h 20m

Trieste Ronchi dei Legionari

Mon 3/2

6:35 am-8:49 pm

3 stops23h 14m

$1,326

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 2/26

7:05 am-10:25 am

2 stops18h 20m

Trieste Ronchi dei Legionari

Mon 3/2

6:35 am-8:49 pm

3 stops23h 14m

$1,327

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Thu 3/5

5:35 pm-9:10 pm

2 stops18h 35m

Trieste Ronchi dei Legionari

Sat 3/14

3:00 pm-4:45 pm

3 stops33h 45m

$1,360

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Wed 12/17

12:08 pm-10:40 pm

2 stops25h 32m

Trieste Ronchi dei Legionari

Tue 1/6

11:15 am-3:45 pm

2 stops61h 30m

$1,554

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Wed 12/17

2:16 pm-10:40 pm

2 stops23h 24m

Trieste Ronchi dei Legionari

Tue 1/6

6:15 am-8:49 pm

3 stops23h 34m

$1,882

San DiegoTrieste

SAN - TRS

SANTRS

San Diego

Wed 12/17

5:35 pm-12:20 pm

3 stops33h 45m

Trieste Ronchi dei Legionari

Tue 1/6

2:40 pm-3:45 pm

3 stops34h 05m

$2,958

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Trieste from

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

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 airline that flies from San Diego to Trieste Ronchi dei Legionari?

United Airlines is the most popular carrier operating from San Diego to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Lufthansa, British Airways and United Airlines are the top three most popular airlines that fly to Trieste from San Diego according to our data. Lufthansa is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 5 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

When to book flights from San Diego to Trieste

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

Cheap San Diego to Trieste (SAN to TRS) flight deals and tips

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

Direct flights

None
There are no direct flights from San Diego to Trieste. There are no popular flight routes from San Diego to Trieste.
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  • How far is San Diego to Trieste Ronchi dei Legionari by plane?

    San Diego and Trieste Ronchi dei Legionari are 6209.3 mi apart from one another. 18h 10m is a normal flight duration for this route.

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

    Prices for flights from San Diego Airport to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Trieste Ronchi dei Legionari Airport.

  • What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

    The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Udine
Grado

Why use momondo?

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

It is quick and easy to find San Diego to Trieste flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Trieste that suits you.

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

Flights from San Diego to Trieste with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Trieste from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Trieste, momondo offers a useful price alert feature which will track prices for flights to Trieste from San Diego and alert you when they change.

An easier way to manage your Trieste trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Delta
American Airlines
United Airlines
Turkish Airlines
Lufthansa
Frontier
British Airways
Qatar Airways
Spirit Airlines
Ryanair
Alaska Airlines
Emirates