IAH - TRS

$551 Find Cheap Flights from Houston to Trieste

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Trieste departing on 6/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Trieste

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Trieste, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Trieste, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$710
Lufthansa
Wed 3/18Sun 3/22
IAH - TRS • 1 stop
Cheapest one-way
$514
Multiple Airlines
Mon 6/15
IAH - TRS • 2 stops
Top airlines
Lufthansa
Cheapest • from $710 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
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We hope you love your trip to Trieste!
Flight Deals
Booking Insights
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

Wed, Mar 18 - Sun, Mar 22
Lufthansa Logo
5:30 pm - 2:05 pm
IAH
-
TRS
14h 35m
1 stop
Lufthansa Logo
3:00 pm - 12:09 am
TRS
-
IAH
39h 09m
2 stops
$710Lufthansa
Wed, Mar 18 - Sun, Mar 22
Lufthansa Logo
6:45 pm - 10:40 pm
IAH
-
TRS
21h 55m
2 stops
Lufthansa Logo
3:00 pm - 12:09 am
TRS
-
IAH
39h 09m
2 stops
$714Lufthansa
Thu, Feb 12 - Mon, Feb 16
Lufthansa Logo
4:30 pm - 2:05 pm
IAH
-
TRS
14h 35m
1 stop
Lufthansa Logo
2:40 pm - 5:25 pm
TRS
-
IAH
33h 45m
2 stops
$732Lufthansa
Wed, Mar 18 - Mon, Mar 23
Lufthansa Logo
5:30 pm - 2:05 pm
IAH
-
TRS
14h 35m
1 stop
Lufthansa Logo
2:40 pm - 3:10 pm
TRS
-
IAH
30h 30m
1 stop
$811Lufthansa
Wed, Mar 18 - Mon, Mar 23
Lufthansa Logo
6:45 pm - 10:40 pm
IAH
-
TRS
21h 55m
2 stops
Lufthansa Logo
2:40 pm - 3:10 pm
TRS
-
IAH
30h 30m
1 stop
$815Lufthansa
Wed, Mar 18 - Mon, Mar 23
Lufthansa Logo
11:56 am - 10:40 pm
IAH
-
TRS
28h 44m
2 stops
Lufthansa Logo
11:15 am - 3:10 pm
TRS
-
IAH
33h 55m
2 stops
$825Lufthansa
Wed, Mar 18 - Sun, Mar 22
Lufthansa Logo
5:30 pm - 2:05 pm
IAH
-
TRS
14h 35m
1 stop
Lufthansa Logo
3:00 pm - 7:15 pm
TRS
-
IAH
34h 15m
1 stop
$839Lufthansa
Wed, Mar 18 - Sun, Mar 22
Lufthansa Logo
5:30 pm - 2:05 pm
IAH
-
TRS
14h 35m
1 stop
Lufthansa Logo
3:00 pm - 3:10 pm
TRS
-
IAH
30h 10m
1 stop
$912Lufthansa
Wed, Mar 18 - Sun, Mar 22
Lufthansa Logo
6:45 pm - 10:40 pm
IAH
-
TRS
21h 55m
2 stops
Lufthansa Logo
3:00 pm - 3:10 pm
TRS
-
IAH
30h 10m
1 stop
$916Lufthansa
Wed, Mar 18 - Sun, Mar 22
Lufthansa Logo
11:56 am - 10:40 pm
IAH
-
TRS
28h 44m
2 stops
Lufthansa Logo
3:00 pm - 12:09 am
TRS
-
IAH
39h 09m
2 stops
$926Lufthansa
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Houston to Trieste were found on Lufthansa ($710) and ITA Airways ($1,436).

Good to know

Cheapest flight$514
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 3 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Trieste was $551 for a one-way ticket and $710 for a round-trip.

  • 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 7754 reviews
7.6Crew
6.4Entertainment
6.3Food
6.8Comfort
7.0Boarding
Airline reviews

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

10.0 ExcellentGretchen, Jan 2026
SFO - FRA
Read more Lufthansa reviews

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

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

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

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.

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

Information on your arrival and departure airports