IAH - TRS

$870 Find Cheap Flights from Houston to Trieste - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Trieste departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$870
ITA Airways
Mon 11/9Mon 11/16
IAH - TRS • 1 stop
Top airlines
ITA Airways
Cheapest • from $870 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Houston and Trieste. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $905 (round-trip)
Rome (FCO)
Shortest trip • 13h 50m (one-way)
Insights
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Flight Deals

Cheap Flights from Houston to Trieste (IAH-TRS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston to Trieste that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Houston to Trieste

Mon, Nov 9 - Mon, Nov 16
ITA Airways Logo
6:25 pm - 2:30 pm
IAH
-
TRS
13h 05m
1 stop
ITA Airways Logo
6:35 am - 4:25 pm
TRS
-
IAH
16h 50m
1 stop
$870ITA Airways
Wed, Dec 2 - Sun, Dec 6
ITA Airways Logo
6:25 pm - 2:30 pm
IAH
-
TRS
13h 05m
1 stop
ITA Airways Logo
7:15 pm - 4:25 pm
TRS
-
IAH
28h 10m
1 stop
$870ITA Airways
Mon, Nov 9 - Sun, Nov 15
ITA Airways Logo
6:25 pm - 2:30 pm
IAH
-
TRS
13h 05m
1 stop
ITA Airways Logo
7:15 pm - 4:25 pm
TRS
-
IAH
28h 10m
1 stop
$870ITA Airways
Sun, Nov 8 - Fri, Nov 13
KLM Logo
11:20 am - 2:30 pm
IAH
-
TRS
20h 10m
2 stops
KLM Logo
6:35 am - 10:11 pm
TRS
-
IAH
22h 36m
2 stops
$875KLM
Wed, Nov 4 - Wed, Nov 11
ITA Airways Logo
6:25 pm - 6:30 pm
IAH
-
TRS
17h 05m
1 stop
ITA Airways Logo
6:35 am - 4:25 pm
TRS
-
IAH
16h 50m
1 stop
$900ITA Airways
Fri, Nov 13 - Tue, Nov 17
ITA Airways Logo
6:25 pm - 6:30 pm
IAH
-
TRS
17h 05m
1 stop
ITA Airways Logo
7:15 pm - 4:00 pm
TRS
-
IAH
27h 45m
1 stop
$920ITA Airways
Sun, Nov 8 - Sun, Nov 15
KLM Logo
11:20 am - 2:30 pm
IAH
-
TRS
20h 10m
2 stops
KLM Logo
6:35 am - 10:34 pm
TRS
-
IAH
22h 59m
2 stops
$925KLM
Sun, Nov 8 - Thu, Nov 12
Lufthansa Logo
4:35 pm - 6:30 pm
IAH
-
TRS
42h 55m
2 stops
Lufthansa Logo
3:15 pm - 2:00 pm
TRS
-
IAH
29h 45m
2 stops
$1,092Lufthansa
Sun, Nov 8 - Mon, Nov 16
Lufthansa Logo
4:35 pm - 6:30 pm
IAH
-
TRS
42h 55m
2 stops
Lufthansa Logo
11:15 am - 6:15 pm
TRS
-
IAH
38h 00m
2 stops
$1,092Lufthansa
Mon, Nov 9 - Mon, Nov 16
Lufthansa Logo
6:50 pm - 6:30 pm
IAH
-
TRS
40h 40m
2 stops
Lufthansa Logo
6:35 am - 6:15 pm
TRS
-
IAH
42h 40m
2 stops
$1,103Lufthansa
Booking Insights

KAYAK's insights & trends for Houston to Trieste flights

Get data-powered insights and trends into flights from Houston to Trieste to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Houston to Trieste?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Houston to Trieste were found on ITA Airways ($870) and KLM ($875).

Find deals

Good to know

Cheapest flight

$870
Flight from Houston to Trieste

When to book flights from Houston to Trieste

Are your dates flexible? Find out the best times to travel from Houston to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston to Trieste flights

  • What is the cheapest flight from Houston George Bush Intcntl Airport to Trieste?

    In the last 5 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Trieste was $870 for a round-trip ticket.

  • Do I need a passport to fly between Houston and Trieste?

    Yes

  • Which aircraft models fly most regularly from Houston to Trieste?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston to Trieste?

    Star Alliance is the only airline alliance operating flights between Houston and Trieste.

  • How does KAYAK find such low prices on flights from Houston to Trieste?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston to Trieste.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston to Trieste?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Houston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston to Trieste?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Houston with another airline. Booking your flights between Houston and TRS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston to Trieste?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Houston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Houston to Trieste

 
See real verified KAYAK customer reviews for airlines flying from Houston to Trieste. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Houston to Trieste? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 8167 reviews
7.0Boarding
6.8Comfort
6.4Entertainment
7.6Crew
6.3Food
Airline reviews

It started well but flight was cancelled and they created a nightmare rebooking. It is two days later and we still haven’t reached our destination. I am in Amsterdam waiting on transfer desk to open (later than other airlines) to hopefully get a boarding pass. Once that problem is solved we will just pray this flight isn’t cancelled too.

2.0 MediocreAnonymous, Jun 2026
IAH - FRA
Read more Lufthansa reviews

It started well but flight was cancelled and they created a nightmare rebooking. It is two days later and we still haven’t reached our destination. I am in Amsterdam waiting on transfer desk to open (later than other airlines) to hopefully get a boarding pass. Once that problem is solved we will just pray this flight isn’t cancelled too.

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

I liked the crews attentiveness, all food and drink items were tasty, and came out in a timely manner. The entertainment systems were not as responsive and my seat had issues with the auxiliary for the headphones. Seats were OK, and the headrest for my seat could go back only so far. Bathrooms were tight fit.

The United Airlines crew that operated this flight was subpar. They didn’t

Actual flight was smooth but we were delayed 70 minutes. Were promised to make it up to us but were given no refreshments

Did not fly HOU to SAT as flight was cancelled.

Flight crew was among the best I’ve ever seen

Boing 747-8’s are showing their age. The seat back screens are somewhat unresponsive. Even putting the seat “in its original and upright position” required assistance from the guy behind me-after I helped the lady in front of me! I left a ball cap on board. I’ll be flying back in four weeks. I wonder if Lufthansa has a list a found for that kind of stuff in Frankfurt?

I liked that the chairs don't go back too far. I did not like the entertainment system, which was really terrible by industry standards. The crew were unpleasant. The main meal was terrible, the morning meal was quite good.

Houston to Porto flight delayed landing made us miss our connection. Tried to get on standby for the next flight and even though the lady knew we wouldn’t be able to get on it and she sent us down there. We sat there three hours and then we’re told there’s no way you’re getting on this flight. So we had to go to customer service and ended up having to spend the night in Frankfurt and missed a whole day of our vacation in Porto

Everything you need to know for your flight from Houston to Trieste

Information on your arrival and departure airports

Houston (IAH)
Trieste (TRS)