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Cheap flights from Las Vegas to Trieste from $938

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Trieste departing on 10/8. 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 Las Vegas to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:50 am - 1:55 pm
LAS
-
TRS
22h 05m
2 stops
Multiple Airlines Logo
6:15 am - 11:43 pm
TRS
-
LAS
26h 28m
2 stops
$938Multiple Airlines
Thu, Oct 8 - Thu, Oct 22
Multiple Airlines Logo
6:50 am - 1:55 pm
LAS
-
TRS
22h 05m
2 stops
Multiple Airlines Logo
2:40 pm - 4:20 pm
TRS
-
LAS
34h 40m
1 stop
$978Multiple Airlines
Thu, Oct 8 - Thu, Oct 22
KLM Logo
7:05 am - 2:30 pm
LAS
-
TRS
22h 25m
2 stops
KLM Logo
6:35 am - 9:55 pm
TRS
-
LAS
24h 20m
2 stops
$1,030KLM
Thu, Oct 8 - Thu, Oct 22
Multiple Airlines Logo
6:00 pm - 10:15 pm
LAS
-
TRS
43h 15m
2 stops
Multiple Airlines Logo
2:50 pm - 9:59 pm
TRS
-
LAS
40h 09m
2 stops
$1,031Multiple Airlines
Sat, Jul 4 - Mon, Jul 20
KLM Logo
7:05 am - 2:30 pm
LAS
-
TRS
22h 25m
2 stops
KLM Logo
6:35 am - 11:55 pm
TRS
-
LAS
26h 20m
2 stops
$1,032KLM
Thu, Oct 8 - Thu, Oct 22
KLM Logo
7:05 am - 2:30 pm
LAS
-
TRS
22h 25m
2 stops
KLM Logo
6:35 am - 9:55 pm
TRS
-
LAS
24h 20m
2 stops
$1,038KLM
Thu, Oct 8 - Thu, Oct 22
Multiple Airlines Logo
6:00 pm - 1:55 pm
LAS
-
TRS
34h 55m
2 stops
Multiple Airlines Logo
6:10 am - 4:20 pm
TRS
-
LAS
19h 10m
1 stop
$1,050Multiple Airlines
Sun, Jul 5 - Sun, Jul 12
Multiple Airlines Logo
6:50 am - 1:45 pm
LAS
-
TRS
21h 55m
2 stops
Multiple Airlines Logo
6:10 am - 4:20 pm
TRS
-
LAS
19h 10m
1 stop
$1,051Multiple Airlines
Sun, Jul 12 - Sun, Jul 19
Multiple Airlines Logo
6:00 pm - 1:55 pm
LAS
-
TRS
34h 55m
2 stops
Multiple Airlines Logo
6:10 am - 12:36 am
TRS
-
LAS
27h 26m
2 stops
$1,056Multiple Airlines
Sun, Jul 5 - Sun, Jul 12
Lufthansa Logo
9:10 pm - 10:15 pm
LAS
-
TRS
16h 05m
1 stop
Lufthansa Logo
6:10 am - 4:20 pm
TRS
-
LAS
19h 10m
1 stop
$1,067Lufthansa
Sun, Jul 12 - Sun, Jul 19

United Airlines flights from Las Vegas to Trieste

Our best United Airlines deals on Las Vegas to Trieste flight tickets
United Airlines
Jul 4
LAS9:56 amLas Vegas Harry Reid Intl
63h 29m
3 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jul 20
TRS6:35 amTrieste Ronchi dei Legionari
24h 44m
2 stops
LAS10:19 pmLas Vegas Harry Reid Intl
$1,652
United Airlines
Jul 4
LAS9:56 amLas Vegas Harry Reid Intl
63h 29m
3 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jul 20
TRS6:35 amTrieste Ronchi dei Legionari
38h 39m
3 stops
LAS12:14 pmLas Vegas Harry Reid Intl
$1,772
United Airlines
Jul 4
LAS9:56 amLas Vegas Harry Reid Intl
63h 29m
3 stops
TRS10:25 amTrieste Ronchi dei Legionari
Jul 20
TRS6:35 amTrieste Ronchi dei Legionari
39h 38m
3 stops
LAS1:13 pmLas Vegas Harry Reid Intl
$1,773

KLM flights from Las Vegas to Trieste

Our best KLM deals on Las Vegas to Trieste flight tickets
KLM
Oct 8
LAS7:05 amLas Vegas Harry Reid Intl
22h 25m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Oct 22
TRS6:35 amTrieste Ronchi dei Legionari
24h 20m
2 stops
LAS9:55 pmLas Vegas Harry Reid Intl
$1,030
KLM
Oct 8
LAS7:05 amLas Vegas Harry Reid Intl
22h 25m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Oct 22
TRS6:35 amTrieste Ronchi dei Legionari
26h 20m
2 stops
LAS11:55 pmLas Vegas Harry Reid Intl
$1,032
KLM
Oct 8
LAS7:05 amLas Vegas Harry Reid Intl
22h 25m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Oct 22
TRS6:35 amTrieste Ronchi dei Legionari
24h 20m
2 stops
LAS9:55 pmLas Vegas Harry Reid Intl
$1,038

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas 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 May 28, 2026.
Use the filters below to find and compare flights from Las Vegas to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

6:50 am-1:55 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Thu 10/22

6:15 am-11:43 pm

2 stops26h 28m

$938

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

6:50 am-1:55 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Thu 10/22

2:40 pm-4:20 pm

1 stop34h 40m

$978

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

7:05 am-2:30 pm

2 stops22h 25m

Trieste Ronchi dei Legionari

Thu 10/22

6:35 am-9:55 pm

2 stops24h 20m

$1,030

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sat 7/4

6:00 pm-10:15 pm

2 stops43h 15m

Trieste Ronchi dei Legionari

Mon 7/20

2:50 pm-9:59 pm

2 stops40h 09m

$1,031

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

7:05 am-2:30 pm

2 stops22h 25m

Trieste Ronchi dei Legionari

Thu 10/22

6:35 am-11:55 pm

2 stops26h 20m

$1,032

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

7:05 am-2:30 pm

2 stops22h 25m

Trieste Ronchi dei Legionari

Thu 10/22

6:35 am-9:55 pm

2 stops24h 20m

$1,038

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sun 7/5

6:00 pm-1:55 pm

2 stops34h 55m

Trieste Ronchi dei Legionari

Sun 7/12

6:10 am-4:20 pm

1 stop19h 10m

$1,050

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sun 7/12

6:50 am-1:45 pm

2 stops21h 55m

Trieste Ronchi dei Legionari

Sun 7/19

6:10 am-4:20 pm

1 stop19h 10m

$1,051

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sun 7/5

6:00 pm-1:55 pm

2 stops34h 55m

Trieste Ronchi dei Legionari

Sun 7/12

6:10 am-12:36 am

2 stops27h 26m

$1,056
Quickest round-trip

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sun 7/12

9:10 pm-10:15 pm

1 stop16h 05m

Trieste Ronchi dei Legionari

Sun 7/19

6:10 am-4:20 pm

1 stop19h 10m

$1,067

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Trieste from

How to get the cheapest flight ticket from Las Vegas 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 airlines fly to Trieste?

British Airways, Condor and United Airlines are the top three most popular airlines that fly to Trieste from Las Vegas according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 6 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 Las Vegas to Trieste

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

Cheap Las Vegas to Trieste (LAS to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Trieste

Fastest flight time

22h 25m

Direct flights

None
The fastest flight from Las Vegas to Trieste takes 22h 25m
There are no direct flights from Las Vegas to Trieste. There are no popular flight routes from Las Vegas to Trieste.
Search flight deals

Frequently asked questions about flying from Las Vegas to Trieste

  • How far is Las Vegas Harry Reid Intl to Trieste Ronchi dei Legionari by plane?

    There are 5946.1 mi between Las Vegas Harry Reid Intl and Trieste Ronchi dei Legionari. Typically, this will take 22h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Trieste Ronchi dei Legionari Airport are updated daily.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Trieste Ronchi dei Legionari Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Trieste Ronchi dei Legionari Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Trieste Ronchi dei Legionari Airport.

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

    The necessary travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Las Vegas to Trieste?

Best airlines flying from Las Vegas to Trieste

Compare and see reviews for airlines that fly from Las Vegas to Trieste with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $843Free CancellationRating
6.8
8,032 reviews
Search Lufthansa flights

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 Las Vegas to Trieste?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Las Vegas to Trieste for you.

Can I find flights from Las Vegas to Trieste with flexible booking policies on momondo?

Flights from Las Vegas 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 Las Vegas to Trieste?

momondo helps you find the best flight between Las Vegas and Trieste 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 Las Vegas to Trieste right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Las Vegas to Trieste flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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
British Airways
Condor
United Airlines
Lufthansa
Delta
SWISS