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Cheap flights from Detroit to Trieste from $585

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 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Detroit to Trieste

Cheap round-trip flights

Lufthansa Logo
4:00 pm - 2:05 pmDTW-TRS
16h 05m1 stop
Lufthansa Logo
6:25 am - 3:10 pmTRS-DTW
13h 45m1 stop
$647Lufthansa
Find Deal
Tue, Oct 21 - Fri, Oct 31
Lufthansa Logo
6:05 pm - 10:35 pmDTW-TRS
22h 30m2 stops
Lufthansa Logo
6:25 am - 3:10 pmTRS-DTW
13h 45m1 stop
$651Lufthansa
Find Deal
Tue, Oct 21 - Fri, Oct 31
Multiple Airlines Logo
4:10 pm - 10:35 pmDTW-TRS
24h 25m2 stops
Multiple Airlines Logo
6:25 am - 8:19 pmTRS-DTW
42h 54m2 stops
$669Multiple Airlines
Find Deal
Tue, Oct 21 - Fri, Oct 31
Lufthansa Logo
4:00 pm - 2:05 pmDTW-TRS
16h 05m1 stop
Lufthansa Logo
6:25 am - 2:10 pmTRS-DTW
13h 45m1 stop
$677Lufthansa
Find Deal
Fri, Nov 7 - Tue, Nov 11
Lufthansa Logo
4:00 pm - 2:05 pmDTW-TRS
16h 05m1 stop
Lufthansa Logo
6:25 am - 10:15 pmTRS-DTW
21h 50m2 stops
$687Lufthansa
Find Deal
Fri, Nov 7 - Tue, Nov 11
Lufthansa Logo
4:15 pm - 2:00 pmDTW-TRS
15h 45m1 stop
Lufthansa Logo
2:40 pm - 1:55 pmTRS-DTW
29h 15m1 stop
$733Lufthansa
Find Deal
Sun, Dec 28 - Tue, Jan 6
Multiple Airlines Logo
6:15 pm - 2:00 pmDTW-TRS
37h 45m2 stops
Multiple Airlines Logo
3:00 pm - 5:35 pmTRS-DTW
56h 35m2 stops
$782Multiple Airlines
Find Deal
Sat, Nov 15 - Sun, Nov 30
Multiple Airlines Logo
6:15 pm - 2:00 pmDTW-TRS
37h 45m2 stops
Multiple Airlines Logo
3:00 pm - 1:55 pmTRS-DTW
28h 55m1 stop
$785Multiple Airlines
Find Deal
Sat, Nov 15 - Sun, Nov 30
Turkish Airlines Logo
8:05 pm - 2:30 pmDTW-TRS
36h 25m2 stops
Turkish Airlines Logo
11:15 am - 6:10 pmTRS-DTW
36h 55m2 stops
$1,028Turkish Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
Turkish Airlines Logo
8:05 pm - 6:30 pmDTW-TRS
40h 25m2 stops
Turkish Airlines Logo
3:15 pm - 6:10 pmTRS-DTW
32h 55m2 stops
$1,641Turkish Airlines
Find Deal
Tue, Dec 30 - Sun, Jan 4

Turkish Airlines flights from Detroit to Trieste

Our best Turkish Airlines deals on Detroit to Trieste flight tickets
Turkish Airlines
Nov 7
DTW8:05 pmDetroit Metropolitan Wayne County
36h 25m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 11
TRS11:15 amTrieste Ronchi dei Legionari
36h 55m
2 stops
DTW6:10 pmDetroit Metropolitan Wayne County
$1,028
Find similar
Turkish Airlines
Sep 23
DTW9:00 pmDetroit Metropolitan Wayne County
35h 30m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 12
TRS3:15 pmTrieste Ronchi dei Legionari
32h 55m
2 stops
DTW6:10 pmDetroit Metropolitan Wayne County
$1,196
Find similar
Turkish Airlines
Sep 21
DTW9:00 pmDetroit Metropolitan Wayne County
19h 55m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Nov 16
TRS3:15 pmTrieste Ronchi dei Legionari
56h 55m
2 stops
DTW6:10 pmDetroit Metropolitan Wayne County
$1,265
Find similar

Lufthansa flights from Detroit to Trieste

Our best Lufthansa deals on Detroit to Trieste flight tickets
Lufthansa
Oct 21
DTW4:00 pmDetroit Metropolitan Wayne County
16h 05m
1 stop
TRS2:05 pmTrieste Ronchi dei Legionari
Oct 31
TRS6:25 amTrieste Ronchi dei Legionari
13h 45m
1 stop
DTW3:10 pmDetroit Metropolitan Wayne County
$647
Find similar
Lufthansa
Oct 21
DTW6:05 pmDetroit Metropolitan Wayne County
22h 30m
2 stops
TRS10:35 pmTrieste Ronchi dei Legionari
Oct 31
TRS6:25 amTrieste Ronchi dei Legionari
13h 45m
1 stop
DTW3:10 pmDetroit Metropolitan Wayne County
$651
Find similar
Lufthansa
Nov 7
DTW4:00 pmDetroit Metropolitan Wayne County
16h 05m
1 stop
TRS2:05 pmTrieste Ronchi dei Legionari
Nov 11
TRS6:25 amTrieste Ronchi dei Legionari
13h 45m
1 stop
DTW2:10 pmDetroit Metropolitan Wayne County
$677
Find similar

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 September 17, 2025.
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

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Tue 10/21

4:00 pm-2:05 pm

1 stop16h 05m

Trieste Ronchi dei Legionari

Fri 10/31

6:25 am-3:10 pm

1 stop13h 45m

$647

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Tue 10/21

6:05 pm-10:35 pm

2 stops22h 30m

Trieste Ronchi dei Legionari

Fri 10/31

6:25 am-3:10 pm

1 stop13h 45m

$651

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Tue 10/21

4:10 pm-10:35 pm

2 stops24h 25m

Trieste Ronchi dei Legionari

Fri 10/31

6:25 am-8:19 pm

2 stops42h 54m

$669

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 11/7

4:00 pm-2:05 pm

1 stop16h 05m

Trieste Ronchi dei Legionari

Tue 11/11

6:25 am-2:10 pm

1 stop13h 45m

$677

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 11/7

4:00 pm-2:05 pm

1 stop16h 05m

Trieste Ronchi dei Legionari

Tue 11/11

6:25 am-10:15 pm

2 stops21h 50m

$687

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Sun 12/28

4:15 pm-2:00 pm

1 stop15h 45m

Trieste Ronchi dei Legionari

Tue 1/6

2:40 pm-1:55 pm

1 stop29h 15m

$733

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Sat 11/15

6:15 pm-2:00 pm

2 stops37h 45m

Trieste Ronchi dei Legionari

Sun 11/30

3:00 pm-5:35 pm

2 stops56h 35m

$782

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Sat 11/15

6:15 pm-2:00 pm

2 stops37h 45m

Trieste Ronchi dei Legionari

Sun 11/30

3:00 pm-1:55 pm

1 stop28h 55m

$785

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Fri 11/7

8:05 pm-2:30 pm

2 stops36h 25m

Trieste Ronchi dei Legionari

Tue 11/11

11:15 am-6:10 pm

2 stops36h 55m

$1,028

DetroitTrieste

DTW - TRS

DTWTRS

Detroit Metropolitan Wayne County

Tue 12/30

8:05 pm-6:30 pm

2 stops40h 25m

Trieste Ronchi dei Legionari

Sun 1/4

3:15 pm-6:10 pm

2 stops32h 55m

$1,641

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Lufthansa and Turkish Airlines are the most popular carriers operating from Detroit to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

Delta, Turkish Airlines and KLM 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 54% 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 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

Direct flights

None
There are no direct flights from Detroit to Trieste. There are no popular flight routes from Detroit to Trieste.
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  • 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 14h 30m.

  • 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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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
American Airlines
United Airlines
Turkish Airlines
Lufthansa
Frontier
British Airways
Qatar Airways
Spirit Airlines
Ryanair
Emirates
Alaska Airlines