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Cheap flights from Detroit to Trieste from $609

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Trieste departing on 10/15. 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 Detroit to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:50 pm - 1:55 pm
DTW
-
TRS
13h 05m
2 stops
Multiple Airlines Logo
2:50 pm - 1:55 pm
TRS
-
DTW
29h 05m
1 stop
$916Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:30 am - 1:55 pm
DTW
-
TRS
24h 25m
2 stops
Multiple Airlines Logo
6:10 am - 10:45 pm
TRS
-
DTW
22h 35m
2 stops
$921Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Lufthansa Logo
4:00 pm - 1:55 pm
DTW
-
TRS
15h 55m
1 stop
Lufthansa Logo
2:50 pm - 1:55 pm
TRS
-
DTW
29h 05m
1 stop
$946Lufthansa
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
3:00 pm - 4:45 pm
DTW
-
TRS
19h 45m
2 stops
Multiple Airlines Logo
2:50 pm - 6:10 pm
TRS
-
DTW
33h 20m
3 stops
$1,102Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
3:00 pm - 10:55 pm
DTW
-
TRS
25h 55m
3 stops
Multiple Airlines Logo
6:35 am - 9:40 pm
TRS
-
DTW
21h 05m
3 stops
$1,269Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Lufthansa Logo
4:00 pm - 1:55 pm
DTW
-
TRS
15h 55m
1 stop
Lufthansa Logo
2:50 pm - 1:55 pm
TRS
-
DTW
29h 05m
1 stop
$1,383Lufthansa
Fri, Jul 17 - Mon, Jul 20
Multiple Airlines Logo
5:30 pm - 10:25 am
DTW
-
TRS
34h 55m
3 stops
Multiple Airlines Logo
9:00 pm - 9:40 pm
TRS
-
DTW
30h 40m
3 stops
$1,401Multiple Airlines
Sun, Jul 19 - Wed, Jul 22
Multiple Airlines Logo
6:50 pm - 1:55 pm
DTW
-
TRS
13h 05m
2 stops
Multiple Airlines Logo
6:10 am - 1:55 pm
TRS
-
DTW
13h 45m
1 stop
$1,464Multiple Airlines
Fri, Jul 17 - Mon, Jul 20
Lufthansa Logo
2:15 pm - 10:55 pm
DTW
-
TRS
26h 40m
2 stops
Lufthansa Logo
3:15 pm - 2:15 pm
TRS
-
DTW
29h 00m
2 stops
$1,490Lufthansa
Fri, Dec 25 - Fri, Jan 1
Multiple Airlines Logo
2:10 pm - 10:25 am
DTW
-
TRS
14h 15m
2 stops
Multiple Airlines Logo
3:15 pm - 10:19 pm
TRS
-
DTW
37h 04m
2 stops
$1,596Multiple Airlines
Fri, Jul 17 - Mon, Jul 20

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Lufthansa flights from Detroit to Trieste

Our best Lufthansa deals on Detroit to Trieste flight tickets
Lufthansa
Aug 17
DTW4:00 pmDetroit Metropolitan Wayne County
15h 55m
1 stop
TRS1:55 pmTrieste Ronchi dei Legionari
Aug 24
TRS2:50 pmTrieste Ronchi dei Legionari
29h 05m
1 stop
DTW1:55 pmDetroit Metropolitan Wayne County
$946
Lufthansa
Jul 17
DTW4:00 pmDetroit Metropolitan Wayne County
15h 55m
1 stop
TRS1:55 pmTrieste Ronchi dei Legionari
Jul 20
TRS2:50 pmTrieste Ronchi dei Legionari
29h 05m
1 stop
DTW1:55 pmDetroit Metropolitan Wayne County
$1,383
Lufthansa
Dec 25
DTW2:15 pmDetroit Metropolitan Wayne County
26h 40m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Jan 1
TRS3:15 pmTrieste Ronchi dei Legionari
29h 00m
2 stops
DTW2:15 pmDetroit Metropolitan Wayne County
$1,490

KLM flights from Detroit to Trieste

Our best KLM deals on Detroit to Trieste flight tickets
KLM
Dec 25
DTW6:45 pmDetroit Metropolitan Wayne County
22h 10m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
Jan 1
TRS6:35 amTrieste Ronchi dei Legionari
24h 09m
2 stops
DTW12:44 amDetroit Metropolitan Wayne County
$1,897
KLM
Dec 25
DTW6:45 pmDetroit Metropolitan Wayne County
22h 10m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
Jan 1
TRS6:35 amTrieste Ronchi dei Legionari
13h 50m
1 stop
DTW2:25 pmDetroit Metropolitan Wayne County
$2,307

momondo Fare Finder

 
Customize your flight search to find flights from Detroit 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 July 7, 2026.
Use the filters below to find and compare flights from Detroit to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Mon 8/17

6:50 pm-1:55 pm

2 stops13h 05m

Trieste Ronchi dei Legionari

Mon 8/24

2:50 pm-1:55 pm

1 stop29h 05m

$916

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Mon 8/17

7:30 am-1:55 pm

2 stops24h 25m

Trieste Ronchi dei Legionari

Mon 8/24

6:10 am-10:45 pm

2 stops22h 35m

$921

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Mon 8/17

4:00 pm-1:55 pm

1 stop15h 55m

Trieste Ronchi dei Legionari

Mon 8/24

2:50 pm-1:55 pm

1 stop29h 05m

$946

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Mon 8/17

3:00 pm-4:45 pm

2 stops19h 45m

Trieste Ronchi dei Legionari

Mon 8/24

2:50 pm-6:10 pm

3 stops33h 20m

$1,102

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Mon 8/17

3:00 pm-10:55 pm

3 stops25h 55m

Trieste Ronchi dei Legionari

Mon 8/24

6:35 am-9:40 pm

3 stops21h 05m

$1,269

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 7/17

4:00 pm-1:55 pm

1 stop15h 55m

Trieste Ronchi dei Legionari

Mon 7/20

2:50 pm-1:55 pm

1 stop29h 05m

$1,383

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Sun 7/19

5:30 pm-10:25 am

3 stops34h 55m

Trieste Ronchi dei Legionari

Wed 7/22

9:00 pm-9:40 pm

3 stops30h 40m

$1,401
Quickest round-trip

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 7/17

6:50 pm-1:55 pm

2 stops13h 05m

Trieste Ronchi dei Legionari

Mon 7/20

6:10 am-1:55 pm

1 stop13h 45m

$1,464

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 12/25

2:15 pm-10:55 pm

2 stops26h 40m

Trieste Ronchi dei Legionari

Fri 1/1

3:15 pm-2:15 pm

2 stops29h 00m

$1,490

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 7/17

2:10 pm-10:25 am

2 stops14h 15m

Trieste Ronchi dei Legionari

Mon 7/20

3:15 pm-10:19 pm

2 stops37h 04m

$1,596

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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2

See travel insights to Trieste from

How to get the cheapest flight ticket from Detroit 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 Detroit to Trieste Ronchi dei Legionari?

United Airlines is the most popular carrier operating from Detroit to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Delta, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Trieste from Detroit according to our data. Delta is the first choice among our users, with 45% 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 Detroit to Trieste

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

Cheap Detroit to Trieste (DTT to TRS) flight deals and tips

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

Fastest flight time

15h 55m

Direct flights

None
The fastest flight from Detroit to Trieste takes 15h 55m
There are no direct flights from Detroit to Trieste. There are no popular flight routes from Detroit to Trieste.
Search flight deals

Frequently asked questions about flying from Detroit to Trieste

  • How far is Detroit to Trieste Ronchi dei Legionari by plane?

    A flight from Detroit to Trieste Ronchi dei Legionari will travel around 4498.4 mi. In terms of flight time, this usually takes a little over 15h 55m.

  • When did momondo last update prices for flights from Detroit to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Detroit to Trieste Ronchi dei Legionari Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Detroit 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 Detroit 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
Udine
Grado

Why use momondo?

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

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

Yes. All flights to Trieste from Detroit on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Detroit 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 Detroit to Trieste right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Trieste from Detroit. 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
United Airlines
Lufthansa
Air France