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

The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$747 Cheap Flights from Houston George Bush Intcntl Airport to Trieste in 2026

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Find the cheapest flights from Houston George Bush Intcntl Airport to Trieste

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6:10 pm - 10:25 amIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

33h 15m1 stop Rome Fiumicino

7:15 pm - 3:40 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

27h 25m1 stop Rome Fiumicino

$747ITA Airways

Wed, Sep 23 - Sun, Sep 27

6:25 pm - 2:30 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

13h 05m1 stop Rome Fiumicino

7:15 pm - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

27h 45m1 stop Rome Fiumicino

$764ITA Airways

Mon, Nov 9 - Sun, Nov 15

6:25 pm - 2:30 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

13h 05m1 stop Rome Fiumicino

7:15 pm - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

27h 45m1 stop Rome Fiumicino

$764ITA Airways

Mon, Nov 9 - Tue, Nov 17

6:25 pm - 2:30 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

13h 05m1 stop Rome Fiumicino

6:35 am - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

16h 25m1 stop Rome Fiumicino

$764ITA Airways

Mon, Nov 9 - Mon, Nov 16

6:25 pm - 10:55 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

21h 30m1 stop Rome Fiumicino

7:15 pm - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

27h 45m1 stop Rome Fiumicino

$789ITA Airways

Wed, Nov 4 - Tue, Nov 17

6:25 pm - 6:30 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

17h 05m1 stop Rome Fiumicino

6:35 am - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

16h 25m1 stop Rome Fiumicino

$789ITA Airways

Wed, Nov 4 - Mon, Nov 16

6:25 pm - 6:30 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

17h 05m1 stop Rome Fiumicino

7:15 pm - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

27h 45m1 stop Rome Fiumicino

$789ITA Airways

Wed, Nov 4 - Sun, Nov 15

6:25 pm - 6:30 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

17h 05m1 stop Rome Fiumicino

6:35 am - 4:00 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

16h 25m1 stop Rome Fiumicino

$789ITA Airways

Wed, Nov 4 - Wed, Nov 11

3:35 pm - 1:55 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 20m1 stop Frankfurt am Main

6:20 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 15m1 stop Frankfurt am Main

$888Lufthansa

Mon, Sep 21 - Tue, Sep 29

6:40 pm - 10:15 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

20h 35m2 stops Chicago O'Hare Intl Frankfurt am Main

6:20 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 15m1 stop Frankfurt am Main

$892Lufthansa

Sun, Sep 20 - Tue, Sep 29

Cheap last minute flights

Enter your travel dates to find the best prices.

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:10 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 25m1 stop Frankfurt am Main

$888Lufthansa

Tue, Sep 15 - Wed, Sep 23

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:20 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 15m1 stop Frankfurt am Main

$888Lufthansa

Tue, Sep 15 - Tue, Sep 29

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:15 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 20m1 stop Frankfurt am Main

$888Lufthansa

Tue, Sep 15 - Thu, Sep 24

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:10 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 25m1 stop Frankfurt am Main

$888Lufthansa

Tue, Sep 15 - Fri, Sep 25

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:15 am - 12:30 amTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

25h 15m2 stops Frankfurt am Main Chicago O'Hare Intl

$898Lufthansa

Tue, Sep 15 - Thu, Sep 24

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:20 am - 5:17 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

17h 57m2 stops Frankfurt am Main Dallas/Fort Worth

$898Lufthansa

Tue, Sep 15 - Tue, Sep 29

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

6:10 am - 10:45 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

23h 35m2 stops Frankfurt am Main Chicago O'Hare Intl

$898Lufthansa

Tue, Sep 15 - Wed, Sep 23

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

2:50 pm - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

29h 45m1 stop Frankfurt am Main

$908Lufthansa

Tue, Sep 15 - Mon, Sep 28

3:35 pm - 1:45 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Frankfurt am Main

2:50 pm - 5:17 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

33h 27m2 stops Frankfurt am Main Dallas/Fort Worth

$918Lufthansa

Tue, Sep 15 - Mon, Sep 28

6:40 pm - 10:15 pmIAH Houston George Bush Intcntl-TRS Trieste Ronchi dei Legionari

20h 35m2 stops Chicago O'Hare Intl Frankfurt am Main

6:10 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAH Houston George Bush Intcntl

14h 25m1 stop Frankfurt am Main

$1,085Lufthansa

Tue, Sep 15 - Fri, Sep 25

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United Airlines flights from Houston George Bush Intcntl Airport to Trieste

Our best United Airlines deals on Houston George Bush Intcntl Airport to Trieste flight tickets

United Airlines

Dec 7

IAH10:56 amHouston George Bush Intcntl

16h 29m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Dec 11

TRS6:35 amTrieste Ronchi dei Legionari

21h 59m

2 stops

IAH9:34 pmHouston George Bush Intcntl

$1,089

United Airlines

Jan 17

IAH6:00 amHouston George Bush Intcntl

21h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Jan 21

TRS6:35 amTrieste Ronchi dei Legionari

33h 30m

2 stops

IAH9:05 amHouston George Bush Intcntl

$1,099

United Airlines

Nov 3

IAH12:00 pmHouston George Bush Intcntl

15h 25m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Nov 12

TRS6:35 amTrieste Ronchi dei Legionari

19h 35m

2 stops

IAH7:10 pmHouston George Bush Intcntl

$1,126

ITA Airways flights from Houston George Bush Intcntl Airport to Trieste

Our best ITA Airways deals on Houston George Bush Intcntl Airport to Trieste flight tickets

ITA Airways

Sep 23

IAH6:10 pmHouston George Bush Intcntl

33h 15m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Sep 27

TRS7:15 pmTrieste Ronchi dei Legionari

27h 25m

1 stop

IAH3:40 pmHouston George Bush Intcntl

$747

ITA Airways

Nov 9

IAH6:25 pmHouston George Bush Intcntl

13h 05m

1 stop

TRS2:30 pmTrieste Ronchi dei Legionari

Nov 16

TRS6:35 amTrieste Ronchi dei Legionari

16h 25m

1 stop

IAH4:00 pmHouston George Bush Intcntl

$764

ITA Airways

Nov 4

IAH6:25 pmHouston George Bush Intcntl

17h 05m

1 stop

TRS6:30 pmTrieste Ronchi dei Legionari

Nov 15

TRS7:15 pmTrieste Ronchi dei Legionari

27h 45m

1 stop

IAH4:00 pmHouston George Bush Intcntl

$789

momondo Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Trieste that are best for you.

Fly from

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Route

Depart

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Price

Cheapest round-trip

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Wed 9/23

6:10 pm-10:25 am

1 stop33h 15m

Trieste Ronchi dei Legionari

Sun 9/27

7:15 pm-3:40 pm

1 stop27h 25m

$747

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Mon 11/9

6:25 pm-2:30 pm

1 stop13h 05m

Trieste Ronchi dei Legionari

Sun 11/15

7:15 pm-4:00 pm

1 stop27h 45m

$764

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Mon 11/9

6:25 pm-2:30 pm

1 stop13h 05m

Trieste Ronchi dei Legionari

Tue 11/17

7:15 pm-4:00 pm

1 stop27h 45m

$764

Quickest round-trip

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Mon 11/9

6:25 pm-2:30 pm

1 stop13h 05m

Trieste Ronchi dei Legionari

Mon 11/16

6:35 am-4:00 pm

1 stop16h 25m

$764

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Wed 11/4

6:25 pm-10:55 pm

1 stop21h 30m

Trieste Ronchi dei Legionari

Tue 11/17

7:15 pm-4:00 pm

1 stop27h 45m

$789

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Wed 11/4

6:25 pm-6:30 pm

1 stop17h 05m

Trieste Ronchi dei Legionari

Mon 11/16

6:35 am-4:00 pm

1 stop16h 25m

$789

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Wed 11/4

6:25 pm-6:30 pm

1 stop17h 05m

Trieste Ronchi dei Legionari

Sun 11/15

7:15 pm-4:00 pm

1 stop27h 45m

$789

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Wed 11/4

6:25 pm-6:30 pm

1 stop17h 05m

Trieste Ronchi dei Legionari

Wed 11/11

6:35 am-4:00 pm

1 stop16h 25m

$789

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Mon 9/21

3:35 pm-1:55 pm

1 stop15h 20m

Trieste Ronchi dei Legionari

Tue 9/29

6:20 am-1:35 pm

1 stop14h 15m

$888

HoustonTrieste

IAH Houston George Bush Intcntl - TRS Trieste Ronchi dei Legionari

IAHTRS

Houston George Bush Intcntl

Sun 9/20

6:40 pm-10:15 pm

2 stops20h 35m

Trieste Ronchi dei Legionari

Tue 9/29

6:20 am-1:35 pm

1 stop14h 15m

$892

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport 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 is the cheapest airline that flies from Houston George Bush Intcntl to Trieste Ronchi dei Legionari?

United Airlines is the most popular carrier operating from Houston George Bush Intcntl to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Turkish Airlines, United Airlines and British Airways are the top three most popular airlines that fly to Trieste from Houston George Bush Intcntl Airport according to our data. Turkish Airlines is the first choice among our users, with 54% 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 Houston George Bush Intcntl Airport to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Trieste according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Trieste (IAH to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Trieste

Best Price Found	$1,014
Fastest flight time	16h 29m
Direct flights	None

The best one-way flight to Trieste from Houston George Bush Intcntl Airport in the past 72 hours is $1,014. The best round-trip flight deal from Houston George Bush Intcntl Airport to Trieste found on momondo in the last 72 hours is $747.

The fastest flight from Houston George Bush Intcntl Airport to Trieste takes 16h 29m

There are no direct flights from Houston George Bush Intcntl Airport to Trieste. There are no popular flight routes from Houston George Bush Intcntl Airport to Trieste.

Search flight deals

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Trieste

How far is Houston George Bush Intcntl to Trieste Ronchi dei Legionari by plane?
The distance between Houston George Bush Intcntl and Trieste Ronchi dei Legionari is about 5581.8 mi. By plane, this route typically takes 16h 29m.
When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Trieste Ronchi dei Legionari Airport?
Prices for flights from Houston George Bush Intcntl Airport to Trieste Ronchi dei Legionari Airport were last updated today.
How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Trieste Ronchi dei Legionari Airport?
As of September 2026, there is 1 operator available to choose from for flights from Houston George Bush Intcntl Airport to Trieste Ronchi dei Legionari Airport.
How old do you have to be to fly from Houston George Bush Intcntl Airport to Trieste Ronchi dei Legionari Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Trieste Ronchi dei Legionari Airport.
What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?
The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Houston George Bush Intcntl Airport to Trieste?
Based on momondo bookings for flights between Houston George Bush Intcntl Airport and Trieste, the leading airline is Lufthansa, making up 100% of the total bookings.

Best airlines flying from Houston George Bush Intcntl Airport to Trieste

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Trieste with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $650	Free Cancellation	Rating 6.8 8,216 reviews		Search Lufthansa flights

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Why should I use momondo to find a flight deal from Houston 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 Houston to Trieste for you.

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

Yes. momondo enables you to select and highlight flights to Trieste from Houston with this policy.

How can momondo help me find flights from Houston to Trieste?

Once you have performed a search for Houston to Trieste flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Houston to Trieste right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Houston 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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United Airlines flights from Houston George Bush Intcntl Airport to Trieste

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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Trieste

What is the cheapest airline that flies from Houston George Bush Intcntl to Trieste Ronchi dei Legionari?

What airlines fly to Trieste?

When to book flights from Houston George Bush Intcntl Airport to Trieste

Cheap Houston George Bush Intcntl Airport to Trieste (IAH to TRS) flight deals and tips

Best Price Found

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Frequently asked questions about flying from Houston George Bush Intcntl Airport to Trieste

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An easier way to manage your Trieste trip

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