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Cheap flights from Atlanta to Trieste from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Trieste departing on 9/14. 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

Find the cheapest flights from Atlanta to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
3:55 pm - 1:55 pmATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
16h 00m1 stop Frankfurt am Main
Lufthansa Logo
6:10 am - 7:37 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
19h 27m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$1,042Lufthansa
Thu, Sep 10 - Wed, Sep 16
Lufthansa Logo
2:33 pm - 1:55 pmATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
17h 22m2 stops Washington, D.C. Dulles Intl Frankfurt am Main
Lufthansa Logo
6:10 am - 7:37 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
19h 27m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$1,043Lufthansa
Thu, Sep 10 - Wed, Sep 16
Lufthansa Logo
3:55 pm - 1:55 pmATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
16h 00m1 stop Frankfurt am Main
Lufthansa Logo
2:40 pm - 1:45 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
29h 05m1 stop Frankfurt am Main
$1,055Lufthansa
Thu, Sep 10 - Wed, Sep 16
Multiple Airlines Logo
12:55 pm - 9:15 pmATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
26h 20m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Milan Linate
Multiple Airlines Logo
3:15 pm - 7:45 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
34h 30m2 stops Tirana Rinas Istanbul
$1,409Multiple Airlines
Thu, Sep 10 - Wed, Sep 16
United Airlines Logo
6:30 am - 10:25 amATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
21h 55m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 9:29 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
20h 54m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl
$1,478United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
6:30 am - 10:25 amATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
21h 55m2 stops Newark Rome Fiumicino
United Airlines Logo
6:35 am - 9:29 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
20h 54m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl
$1,481United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
9:50 am - 10:25 amATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
18h 35m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
United Airlines Logo
6:35 am - 12:27 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
35h 52m3 stops Rome Fiumicino Newark Chicago O'Hare Intl
$1,500United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
9:50 am - 10:25 amATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
18h 35m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
United Airlines Logo
6:35 am - 12:27 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
35h 52m3 stops Rome Fiumicino Newark Chicago O'Hare Intl
$1,503United Airlines
Thu, Oct 15 - Mon, Oct 19
Multiple Airlines Logo
1:05 pm - 9:15 pmATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
26h 10m3 stops Toronto Pearson Intl Frankfurt am Main Milan Linate
Multiple Airlines Logo
2:40 pm - 7:45 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
35h 05m3 stops Frankfurt am Main Madrid Barajas Istanbul
$1,707Multiple Airlines
Thu, Sep 10 - Wed, Sep 16
United Airlines Logo
1:23 pm - 10:25 amATL  Atlanta Hartsfield-Jackson-TRS Trieste Ronchi dei Legionari
15h 02m2 stops Chicago O'Hare Intl Rome Fiumicino
United Airlines Logo
6:35 am - 7:23 pmTRS  Trieste Ronchi dei Legionari-ATL Atlanta Hartsfield-Jackson
18h 48m2 stops Rome Fiumicino Newark
$1,884United Airlines
Sat, Sep 26 - Sat, Oct 3

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United Airlines flights from Atlanta to Trieste

Our best United Airlines deals on Atlanta to Trieste flight tickets
United Airlines
Oct 15
ATL6:30 amAtlanta Hartsfield-Jackson
21h 55m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Oct 19
TRS6:35 amTrieste Ronchi dei Legionari
20h 54m
2 stops
ATL9:29 pmAtlanta Hartsfield-Jackson
$1,478
United Airlines
Oct 15
ATL6:30 amAtlanta Hartsfield-Jackson
21h 55m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Oct 19
TRS6:35 amTrieste Ronchi dei Legionari
20h 54m
2 stops
ATL9:29 pmAtlanta Hartsfield-Jackson
$1,481
United Airlines
Oct 15
ATL9:50 amAtlanta Hartsfield-Jackson
18h 35m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Oct 19
TRS6:35 amTrieste Ronchi dei Legionari
35h 52m
3 stops
ATL12:27 pmAtlanta Hartsfield-Jackson
$1,500

Lufthansa flights from Atlanta to Trieste

Our best Lufthansa deals on Atlanta to Trieste flight tickets
Lufthansa
Sep 10
ATL3:55 pmAtlanta Hartsfield-Jackson
16h 00m
1 stop
TRS1:55 pmTrieste Ronchi dei Legionari
Sep 16
TRS6:10 amTrieste Ronchi dei Legionari
19h 27m
2 stops
ATL7:37 pmAtlanta Hartsfield-Jackson
$1,042
Lufthansa
Sep 10
ATL2:33 pmAtlanta Hartsfield-Jackson
17h 22m
2 stops
TRS1:55 pmTrieste Ronchi dei Legionari
Sep 16
TRS6:10 amTrieste Ronchi dei Legionari
19h 27m
2 stops
ATL7:37 pmAtlanta Hartsfield-Jackson
$1,043
Lufthansa
Sep 10
ATL3:55 pmAtlanta Hartsfield-Jackson
16h 00m
1 stop
TRS1:55 pmTrieste Ronchi dei Legionari
Sep 16
TRS2:40 pmTrieste Ronchi dei Legionari
29h 05m
1 stop
ATL1:45 pmAtlanta Hartsfield-Jackson
$1,055

momondo Fare Finder

 
Customize your flight search to find flights from Atlanta 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 August 12, 2026.
Use the filters below to find and compare flights from Atlanta to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 9/10

3:55 pm-1:55 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Wed 9/16

6:10 am-7:37 pm

2 stops19h 27m

$1,042

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 9/10

2:33 pm-1:55 pm

2 stops17h 22m

Trieste Ronchi dei Legionari

Wed 9/16

6:10 am-7:37 pm

2 stops19h 27m

$1,043

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 9/10

3:55 pm-1:55 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Wed 9/16

2:40 pm-1:45 pm

1 stop29h 05m

$1,055

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 9/10

12:55 pm-9:15 pm

3 stops26h 20m

Trieste Ronchi dei Legionari

Wed 9/16

3:15 pm-7:45 pm

2 stops34h 30m

$1,409

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 10/15

6:30 am-10:25 am

2 stops21h 55m

Trieste Ronchi dei Legionari

Mon 10/19

6:35 am-9:29 pm

2 stops20h 54m

$1,478

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 10/15

6:30 am-10:25 am

2 stops21h 55m

Trieste Ronchi dei Legionari

Mon 10/19

6:35 am-9:29 pm

2 stops20h 54m

$1,481

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 10/15

9:50 am-10:25 am

2 stops18h 35m

Trieste Ronchi dei Legionari

Mon 10/19

6:35 am-12:27 pm

3 stops35h 52m

$1,500

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 10/15

9:50 am-10:25 am

2 stops18h 35m

Trieste Ronchi dei Legionari

Mon 10/19

6:35 am-12:27 pm

3 stops35h 52m

$1,503

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Thu 9/10

1:05 pm-9:15 pm

3 stops26h 10m

Trieste Ronchi dei Legionari

Wed 9/16

2:40 pm-7:45 pm

3 stops35h 05m

$1,707
Quickest round-trip

AtlantaTrieste

ATL Atlanta Hartsfield-Jackson - TRS Trieste Ronchi dei Legionari

ATLTRS

Atlanta Hartsfield-Jackson

Sat 9/26

1:23 pm-10:25 am

2 stops15h 02m

Trieste Ronchi dei Legionari

Sat 10/3

6:35 am-7:23 pm

2 stops18h 48m

$1,884

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Trieste from

How to get the cheapest flight ticket from Atlanta 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 Atlanta Hartsfield-Jackson to Trieste Ronchi dei Legionari?

United Airlines is the most popular carrier operating from Atlanta Hartsfield-Jackson to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Delta, Turkish Airlines and Air France are the top three most popular airlines that fly to Trieste from Atlanta according to our data. Delta is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 7 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 Atlanta to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Atlanta to Trieste according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Atlanta to Trieste (ATL to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Atlanta to Trieste

Fastest flight time

16h 00m

Direct flights

None
The fastest flight from Atlanta to Trieste takes 16h 00m
There are no direct flights from Atlanta to Trieste. There are no popular flight routes from Atlanta to Trieste.
Search flight deals

Frequently asked questions about flying from Atlanta to Trieste

  • How far is Atlanta Hartsfield-Jackson to Trieste Ronchi dei Legionari by plane?

    There are 4947.0 mi between Atlanta Hartsfield-Jackson and Trieste Ronchi dei Legionari. Flights usually cover this in 16h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Atlanta Hartsfield-Jackson Airport to Trieste Ronchi dei Legionari Airport are updated daily.

  • How old do you have to be to fly from Atlanta Hartsfield-Jackson Airport to Trieste Ronchi dei Legionari Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Atlanta Hartsfield-Jackson Airport to Trieste Ronchi dei Legionari Airport.

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

    The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Grado
Udine

Why use momondo?

Why should I use momondo to find a flight deal from Atlanta to Trieste?

It is quick and easy to find Atlanta to Trieste flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Trieste that suits you.

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

Yes. momondo allows you to filter the results for Atlanta to Trieste flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Trieste from Atlanta.

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

Yes momondo offers price alerts on flights to Trieste from Atlanta. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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
Delta
Turkish Airlines
Air France
KLM
Lufthansa
British Airways
Scandinavian Airlines