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Trieste

$789+ Cheap flights from Las Vegas (LAS) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — TRS
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Las Vegas to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$1,090
(United Airlines)

One-way from

$789
(United Airlines)
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Trieste Ronchi dei Legionari flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Trieste Ronchi dei Legionari flights.
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From Las Vegas Harry Reid Intl to Trieste Ronchi dei Legionari
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One-way flight from Las Vegas Harry Reid Intl to Trieste Ronchi dei Legionari
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Find flight deals from Las Vegas to Trieste

Cheapest flights from Las Vegas to Trieste
Explore the most affordable flight options available from Las Vegas to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This ITA Airways deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/227:25 amLAS - TRS
2 stops18h 00mMultiple Airlines
Fri 11/286:35 amTRS - LAS
2 stops21h 53mMultiple Airlines
Deal found 10/28$2,243

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Las Vegas to Trieste that are best for you.

Fly from

Las Vegas

Fly to

Trieste

Route

Depart

Return

Price

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Mon 3/16

7:10 am-10:25 am

2 stops19h 15m

Trieste Ronchi dei Legionari

Wed 3/25

6:35 am-10:18 pm

2 stops23h 43m

$1,090

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sat 2/28

3:42 pm-10:25 pm

2 stops45h 43m

Trieste Ronchi dei Legionari

Wed 3/4

2:40 pm-5:59 pm

2 stops36h 19m

$1,444

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sat 11/22

7:25 am-10:25 am

2 stops18h 00m

Trieste Ronchi dei Legionari

Fri 11/28

6:35 am-7:28 pm

2 stops21h 53m

$2,243

Las VegasTrieste

LAS - TRS

LASTRS

Las Vegas Harry Reid Intl

Sat 11/22

7:10 am-10:25 am

2 stops18h 15m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Las Vegas to Trieste

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Trieste in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Trieste flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Las Vegas-Trieste flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Las Vegas-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Trieste flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Las Vegas to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Las Vegas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to Trieste

What is the cheapest month to book a flight from Las Vegas to Trieste?

Currently, December is the cheapest month in which you can book a flight from Las Vegas to Trieste (average of $543). Flying from Las Vegas to Trieste in June is currently the most expensive (average of $901). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated October 29, 2025.
Get a feel of what it's like to fly with Lufthansa from Las Vegas to Trieste by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,541 reviews

Overall

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
Lufthansa
6.8
Okay
7,541 reviews
Lufthansa
6.8
Okay
7,541 reviews

Overall

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Las Vegas to Trieste?

    United Airlines and Lufthansa can get you from Las Vegas to Trieste in just under 19h 15m. Your travel time can differ by up to 26h 28m. There are 5934 mi between Las Vegas and Trieste. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Las Vegas to Trieste that include hotel bookings?

    Yes. In addition to deals on Las Vegas to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Las Vegas to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Trieste.

  • Can I find deals for business class flights from Las Vegas to Trieste?

    Yes. Cheapflights offers flight deals from Las Vegas to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Las Vegas to Trieste?

    Currently, December is the cheapest month in which you can book a flight from Las Vegas to Trieste (average of $543). Flying from Las Vegas to Trieste in June is currently the most expensive (average of $901). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Las Vegas to Trieste

Discover the top airline that operate flights from Las Vegas to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$1,176Average$1,323FlexibilityNo cancel feeOn-time76%

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