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Cheap flights from Las Vegas to Trieste from $959

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 8/31. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Las Vegas to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
9:10 pm - 10:25 pm
LAS
-
TRS
16h 15m
1 stop
Lufthansa Logo
2:50 pm - 11:20 pm
TRS
-
LAS
41h 30m
2 stops
$959Lufthansa
Mon, Aug 31 - Mon, Sep 7
Lufthansa Logo
2:20 pm - 10:25 pm
LAS
-
TRS
23h 05m
2 stops
Lufthansa Logo
2:50 pm - 5:46 pm
TRS
-
LAS
35h 56m
2 stops
$986Lufthansa
Mon, Aug 31 - Mon, Sep 7
Lufthansa Logo
9:10 pm - 10:25 pm
LAS
-
TRS
16h 15m
1 stop
Lufthansa Logo
6:10 am - 4:20 pm
TRS
-
LAS
19h 10m
1 stop
$993Lufthansa
Mon, Aug 31 - Mon, Sep 7
Multiple Airlines Logo
5:15 pm - 10:15 pm
LAS
-
TRS
20h 00m
1 stop
Multiple Airlines Logo
6:15 am - 3:15 pm
TRS
-
LAS
18h 00m
1 stop
$1,055Multiple Airlines
Thu, Oct 8 - Thu, Oct 22
Multiple Airlines Logo
5:15 pm - 10:15 pm
LAS
-
TRS
20h 00m
1 stop
Multiple Airlines Logo
6:15 am - 3:15 pm
TRS
-
LAS
18h 00m
1 stop
$1,057Multiple Airlines
Thu, Oct 8 - Thu, Oct 22
Multiple Airlines Logo
5:15 pm - 10:15 pm
LAS
-
TRS
20h 00m
1 stop
Multiple Airlines Logo
6:15 am - 3:15 pm
TRS
-
LAS
18h 00m
1 stop
$1,099Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
5:15 pm - 10:25 am
LAS
-
TRS
32h 10m
2 stops
Multiple Airlines Logo
6:15 am - 3:15 pm
TRS
-
LAS
18h 00m
1 stop
$1,135Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Lufthansa Logo
10:44 am - 1:55 pm
LAS
-
TRS
18h 11m
2 stops
Lufthansa Logo
6:15 am - 8:04 pm
TRS
-
LAS
22h 49m
2 stops
$1,172Lufthansa
Thu, Oct 8 - Thu, Oct 22
Lufthansa Logo
10:44 am - 1:55 pm
LAS
-
TRS
18h 11m
2 stops
Lufthansa Logo
6:15 am - 8:04 pm
TRS
-
LAS
22h 49m
2 stops
$1,174Lufthansa
Thu, Oct 8 - Thu, Oct 22
Lufthansa Logo
10:44 am - 1:55 pm
LAS
-
TRS
18h 11m
2 stops
Lufthansa Logo
2:40 pm - 4:20 pm
TRS
-
LAS
34h 40m
1 stop
$1,182Lufthansa
Thu, Oct 8 - Thu, Oct 22

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United Airlines flights from Las Vegas to Trieste

Our best United Airlines deals on Las Vegas to Trieste flight tickets
United Airlines
Aug 20
LAS9:08 amLas Vegas Harry Reid Intl
16h 17m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Aug 27
TRS6:35 amTrieste Ronchi dei Legionari
21h 24m
2 stops
LAS6:59 pmLas Vegas Harry Reid Intl
$1,382
United Airlines
Oct 16
LAS9:00 amLas Vegas Harry Reid Intl
16h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Oct 30
TRS6:35 amTrieste Ronchi dei Legionari
23h 28m
2 stops
LAS10:03 pmLas Vegas Harry Reid Intl
$1,419
United Airlines
Aug 19
LAS7:15 amLas Vegas Harry Reid Intl
18h 10m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Aug 23
TRS6:35 amTrieste Ronchi dei Legionari
50h 19m
3 stops
LAS11:54 pmLas Vegas Harry Reid Intl
$1,714

Lufthansa flights from Las Vegas to Trieste

Our best Lufthansa deals on Las Vegas to Trieste flight tickets
Lufthansa
Aug 31
LAS9:10 pmLas Vegas Harry Reid Intl
16h 15m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
Sep 7
TRS2:50 pmTrieste Ronchi dei Legionari
41h 30m
2 stops
LAS11:20 pmLas Vegas Harry Reid Intl
$959
Lufthansa
Aug 31
LAS2:20 pmLas Vegas Harry Reid Intl
23h 05m
2 stops
TRS10:25 pmTrieste Ronchi dei Legionari
Sep 7
TRS2:50 pmTrieste Ronchi dei Legionari
35h 56m
2 stops
LAS5:46 pmLas Vegas Harry Reid Intl
$986
Lufthansa
Aug 31
LAS9:10 pmLas Vegas Harry Reid Intl
16h 15m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
Sep 7
TRS6:10 amTrieste Ronchi dei Legionari
19h 10m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
$993

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 July 21, 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

Mon 8/31

9:10 pm-10:25 pm

1 stop16h 15m

Trieste Ronchi dei Legionari

Mon 9/7

2:50 pm-11:20 pm

2 stops41h 30m

$959

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Mon 8/31

2:20 pm-10:25 pm

2 stops23h 05m

Trieste Ronchi dei Legionari

Mon 9/7

2:50 pm-5:46 pm

2 stops35h 56m

$986
Quickest round-trip

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Mon 8/31

9:10 pm-10:25 pm

1 stop16h 15m

Trieste Ronchi dei Legionari

Mon 9/7

6:10 am-4:20 pm

1 stop19h 10m

$993

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

5:15 pm-10:15 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Thu 10/22

6:15 am-3:15 pm

1 stop18h 00m

$1,055

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

5:15 pm-10:15 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Thu 10/22

6:15 am-3:15 pm

1 stop18h 00m

$1,057

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 9/3

5:15 pm-10:15 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Thu 9/10

6:15 am-3:15 pm

1 stop18h 00m

$1,099

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 9/3

5:15 pm-10:25 am

2 stops32h 10m

Trieste Ronchi dei Legionari

Thu 9/10

6:15 am-3:15 pm

1 stop18h 00m

$1,135

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

10:44 am-1:55 pm

2 stops18h 11m

Trieste Ronchi dei Legionari

Thu 10/22

6:15 am-8:04 pm

2 stops22h 49m

$1,172

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

10:44 am-1:55 pm

2 stops18h 11m

Trieste Ronchi dei Legionari

Thu 10/22

6:15 am-8:04 pm

2 stops22h 49m

$1,174

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Thu 10/8

10:44 am-1:55 pm

2 stops18h 11m

Trieste Ronchi dei Legionari

Thu 10/22

2:40 pm-4:20 pm

1 stop34h 40m

$1,182

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 Delta 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 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 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

20h 00m

Direct flights

None
The fastest flight from Las Vegas to Trieste takes 20h 00m
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 20h 00m 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
8,152 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.

An easier way to manage your Trieste trip

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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
Delta
Lufthansa
United Airlines