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Cheap flights from Washington, D.C. Dulles Intl Airport to Trieste from $430

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
5:00 pm - 2:30 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
15h 30m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino
KLM Logo
6:35 am - 8:11 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
19h 36m2 stops Rome Fiumicino Atlanta Hartsfield-Jackson
$863KLM
Wed, Dec 9 - Wed, Dec 16
Multiple Airlines Logo
10:55 pm - 2:30 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
33h 35m3 stops Munich Franz Josef Strauss Naples Rome Fiumicino
Multiple Airlines Logo
3:45 pm - 8:05 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
34h 20m2 stops Naples Munich Franz Josef Strauss
$883Multiple Airlines
Wed, Dec 9 - Wed, Dec 16
Multiple Airlines Logo
10:55 pm - 10:55 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
18h 00m3 stops Munich Franz Josef Strauss Naples Rome Fiumicino
Multiple Airlines Logo
6:35 am - 8:05 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
19h 30m3 stops Rome Fiumicino Naples Munich Franz Josef Strauss
$1,012Multiple Airlines
Wed, Dec 9 - Wed, Dec 16
Multiple Airlines Logo
1:30 pm - 5:50 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
22h 20m2 stops Istanbul Tirana Rinas
Multiple Airlines Logo
11:15 am - 2:30 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
33h 15m1 stop Rome Fiumicino
$1,111Multiple Airlines
Wed, Dec 9 - Wed, Dec 16
TAP AIR PORTUGAL Logo
9:35 pm - 10:55 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
19h 20m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
6:35 am - 8:35 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
20h 00m2 stops Rome Fiumicino Lisbon Humberto Delgado
$1,125TAP AIR PORTUGAL
Sat, Apr 24 - Fri, Apr 30
Multiple Airlines Logo
9:55 am - 1:40 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
21h 45m3 stops Montreal Pierre Elliott Trudeau Intl Zurich Naples
Multiple Airlines Logo
6:35 am - 8:35 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
20h 00m2 stops Rome Fiumicino Lisbon Humberto Delgado
$1,167Multiple Airlines
Sat, Apr 24 - Fri, Apr 30
ITA Airways Logo
4:30 pm - 10:55 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
24h 25m1 stop Rome Fiumicino
ITA Airways Logo
6:35 am - 2:30 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
13h 55m1 stop Rome Fiumicino
$1,173ITA Airways
Sun, Dec 27 - Tue, Jan 5
Multiple Airlines Logo
9:55 am - 1:40 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
21h 45m3 stops Montreal Pierre Elliott Trudeau Intl Zurich Naples
Multiple Airlines Logo
6:00 am - 7:00 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
19h 00m3 stops Naples Barcelona-El Prat Casablanca Mohamed V
$1,182Multiple Airlines
Sat, Apr 24 - Fri, Apr 30
Multiple Airlines Logo
1:30 pm - 10:55 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
27h 25m2 stops Istanbul Rome Fiumicino
Multiple Airlines Logo
6:35 am - 11:45 amTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
35h 10m2 stops Rome Fiumicino Istanbul
$1,183Multiple Airlines
Sun, Dec 27 - Tue, Jan 5
TAP AIR PORTUGAL Logo
5:25 pm - 10:55 pmIAD  Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari
23h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino
TAP AIR PORTUGAL Logo
3:15 pm - 3:15 pmTRS  Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl
30h 00m2 stops Rome Fiumicino Lisbon Humberto Delgado
$1,185TAP AIR PORTUGAL
Sat, Nov 14 - Wed, Nov 18

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TAP AIR PORTUGAL flights from Washington, D.C. Dulles Intl Airport to Trieste

Our best TAP AIR PORTUGAL deals on Washington, D.C. Dulles Intl Airport to Trieste flight tickets
TAP AIR PORTUGAL
Apr 24
IAD9:35 pmWashington, D.C. Dulles Intl
19h 20m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Apr 30
TRS6:35 amTrieste Ronchi dei Legionari
20h 00m
2 stops
IAD8:35 pmWashington, D.C. Dulles Intl
$1,125
TAP AIR PORTUGAL
Nov 14
IAD5:25 pmWashington, D.C. Dulles Intl
23h 30m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Nov 18
TRS3:15 pmTrieste Ronchi dei Legionari
30h 00m
2 stops
IAD3:15 pmWashington, D.C. Dulles Intl
$1,185
TAP AIR PORTUGAL
Nov 14
IAD5:25 pmWashington, D.C. Dulles Intl
23h 30m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Nov 18
TRS3:15 pmTrieste Ronchi dei Legionari
30h 00m
2 stops
IAD3:15 pmWashington, D.C. Dulles Intl
$1,214

United Airlines flights from Washington, D.C. Dulles Intl Airport to Trieste

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Trieste flight tickets
United Airlines
Dec 12
IAD5:16 pmWashington, D.C. Dulles Intl
35h 09m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Dec 19
TRS6:35 amTrieste Ronchi dei Legionari
14h 50m
1 stop
IAD3:25 pmWashington, D.C. Dulles Intl
$1,774
United Airlines
Nov 14
IAD5:50 pmWashington, D.C. Dulles Intl
34h 35m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Nov 18
TRS6:35 amTrieste Ronchi dei Legionari
14h 30m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
$2,534

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Trieste that are best for you.

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Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Wed 12/9

5:00 pm-2:30 pm

2 stops15h 30m

Trieste Ronchi dei Legionari

Wed 12/16

6:35 am-8:11 pm

2 stops19h 36m

$863

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Wed 12/9

10:55 pm-2:30 pm

3 stops33h 35m

Trieste Ronchi dei Legionari

Wed 12/16

3:45 pm-8:05 pm

2 stops34h 20m

$883

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Wed 12/9

10:55 pm-10:55 pm

3 stops18h 00m

Trieste Ronchi dei Legionari

Wed 12/16

6:35 am-8:05 pm

3 stops19h 30m

$1,012

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Wed 12/9

1:30 pm-5:50 pm

2 stops22h 20m

Trieste Ronchi dei Legionari

Wed 12/16

11:15 am-2:30 pm

1 stop33h 15m

$1,111

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sat 4/24

9:35 pm-10:55 pm

2 stops19h 20m

Trieste Ronchi dei Legionari

Fri 4/30

6:35 am-8:35 pm

2 stops20h 00m

$1,125

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sat 4/24

9:55 am-1:40 pm

3 stops21h 45m

Trieste Ronchi dei Legionari

Fri 4/30

6:35 am-8:35 pm

2 stops20h 00m

$1,167

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sun 12/27

4:30 pm-10:55 pm

1 stop24h 25m

Trieste Ronchi dei Legionari

Tue 1/5

6:35 am-2:30 pm

1 stop13h 55m

$1,173

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sat 4/24

9:55 am-1:40 pm

3 stops21h 45m

Trieste Ronchi dei Legionari

Fri 4/30

6:00 am-7:00 pm

3 stops19h 00m

$1,182

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sun 12/27

1:30 pm-10:55 pm

2 stops27h 25m

Trieste Ronchi dei Legionari

Tue 1/5

6:35 am-11:45 am

2 stops35h 10m

$1,183

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sat 11/14

5:25 pm-10:55 pm

2 stops23h 30m

Trieste Ronchi dei Legionari

Wed 11/18

3:15 pm-3:15 pm

2 stops30h 00m

$1,185

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl 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 Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari?

TAP AIR PORTUGAL is the most popular carrier operating from Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

United Airlines, Turkish Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Trieste from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 9 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 Washington, D.C. Dulles Intl Airport to Trieste

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

Cheap Washington, D.C. Dulles Intl Airport to Trieste (IAD to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Trieste

Best Price Found

$430

Fastest flight time

11h 55m

Direct flights

None
The best one-way flight to Trieste from Washington, D.C. Dulles Intl Airport in the past 72 hours is $430. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Trieste found on momondo in the last 72 hours is $863.
The fastest flight from Washington, D.C. Dulles Intl Airport to Trieste takes 11h 55m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Trieste. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Trieste.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Trieste

  • How far is Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari by plane?

    A flight from Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari will travel around 4420.8 mi. By plane, this route typically takes 11h 55m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl 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 Washington, D.C. Dulles Intl 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.

Traveling to a place near Trieste?

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

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Why should I use momondo to find a flight deal from Washington, D.C. 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 Washington, D.C. to Trieste for you.

Can I find flights from Washington, D.C. to Trieste with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Trieste on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Trieste?

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

Yes. momondo can track prices for Washington, D.C. 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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TAP AIR PORTUGAL
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