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Cheap flights from District of Columbia to Trieste from $736

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Trieste departing on 7/30. 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
0 bags

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Find the cheapest flights from District of Columbia to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
4:30 pm - 2:30 pm
IAD
-
TRS
16h 00m
1 stop
ITA Airways Logo
6:35 am - 2:30 pm
TRS
-
IAD
13h 55m
1 stop
$757ITA Airways
Fri, Apr 10 - Sun, Apr 19
ITA Airways Logo
4:30 pm - 10:25 am
IAD
-
TRS
11h 55m
1 stop
ITA Airways Logo
7:15 pm - 2:40 pm
TRS
-
IAD
25h 25m
1 stop
$829ITA Airways
Sat, Aug 8 - Wed, Aug 19
ITA Airways Logo
4:30 pm - 6:30 pm
IAD
-
TRS
20h 00m
1 stop
ITA Airways Logo
6:35 am - 9:09 pm
TRS
-
IAD
20h 34m
2 stops
$894ITA Airways
Sat, Aug 8 - Wed, Aug 19
Multiple Airlines Logo
8:30 pm - 6:30 pm
IAD
-
TRS
16h 00m
2 stops
Multiple Airlines Logo
11:15 am - 10:15 pm
TRS
-
IAD
17h 00m
2 stops
$920Multiple Airlines
Wed, May 20 - Wed, May 27
Multiple Airlines Logo
8:30 pm - 9:55 pm
IAD
-
TRS
19h 25m
3 stops
Multiple Airlines Logo
11:15 am - 3:10 pm
TRS
-
IAD
57h 55m
2 stops
$976Multiple Airlines
Fri, Apr 24 - Sun, May 3
ITA Airways Logo
4:30 pm - 10:55 pm
IAD
-
TRS
24h 25m
1 stop
ITA Airways Logo
6:35 am - 2:30 pm
TRS
-
IAD
13h 55m
1 stop
$984ITA Airways
Fri, Apr 17 - Sun, Apr 26
ITA Airways Logo
12:43 pm - 6:30 pm
IAD
-
TRS
23h 47m
2 stops
ITA Airways Logo
6:35 am - 9:09 pm
TRS
-
IAD
20h 34m
2 stops
$994ITA Airways
Sat, Aug 8 - Wed, Aug 19
United Airlines Logo
6:55 pm - 10:25 am
DCA
-
TRS
57h 30m
2 stops
United Airlines Logo
6:35 am - 3:38 pm
TRS
-
DCA
39h 03m
2 stops
$1,060United Airlines
Sat, Aug 8 - Wed, Aug 19
KLM Logo
5:30 pm - 2:30 pm
DCA
-
TRS
15h 00m
2 stops
KLM Logo
6:35 am - 5:00 pm
TRS
-
DCA
16h 25m
2 stops
$1,463KLM
Thu, Apr 2 - Thu, Apr 9
United Airlines Logo
4:20 pm - 10:25 am
DCA
-
TRS
36h 05m
2 stops
United Airlines Logo
6:35 am - 10:19 am
TRS
-
DCA
33h 44m
2 stops
$1,570United Airlines
Wed, May 20 - Wed, May 27

Lufthansa flights from District of Columbia to Trieste

Our best Lufthansa deals on District of Columbia to Trieste flight tickets
Lufthansa
Apr 16
IAD5:55 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
TRS1:55 pmTrieste Ronchi dei Legionari
Apr 23
TRS6:00 amTrieste Ronchi dei Legionari
16h 05m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$892
Lufthansa
Apr 16
IAD10:20 pmWashington, D.C. Dulles Intl
17h 55m
2 stops
TRS10:15 pmTrieste Ronchi dei Legionari
Apr 23
TRS6:00 amTrieste Ronchi dei Legionari
16h 05m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$913
Lufthansa
Apr 16
IAD10:20 pmWashington, D.C. Dulles Intl
17h 55m
2 stops
TRS10:15 pmTrieste Ronchi dei Legionari
Apr 22
TRS2:40 pmTrieste Ronchi dei Legionari
31h 25m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$934

TAP AIR PORTUGAL flights from District of Columbia to Trieste

Our best TAP AIR PORTUGAL deals on District of Columbia to Trieste flight tickets
TAP AIR PORTUGAL
Apr 17
IAD10:50 pmWashington, D.C. Dulles Intl
42h 05m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Apr 22
TRS6:35 amTrieste Ronchi dei Legionari
38h 35m
2 stops
IAD3:10 pmWashington, D.C. Dulles Intl
$955
TAP AIR PORTUGAL
Apr 16
IAD5:45 pmWashington, D.C. Dulles Intl
18h 45m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Apr 23
TRS3:15 pmTrieste Ronchi dei Legionari
29h 55m
2 stops
IAD3:10 pmWashington, D.C. Dulles Intl
$981
TAP AIR PORTUGAL
Jun 7
IAD10:35 pmWashington, D.C. Dulles Intl
18h 20m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Jun 16
TRS11:15 amTrieste Ronchi dei Legionari
33h 55m
2 stops
IAD3:10 pmWashington, D.C. Dulles Intl
$1,169

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 February 18, 2026.
Use the filters below to find and compare flights from District of Columbia to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Fri 4/10

4:30 pm-2:30 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Sun 4/19

6:35 am-2:30 pm

1 stop13h 55m

$757

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

4:30 pm-10:25 am

1 stop11h 55m

Trieste Ronchi dei Legionari

Wed 8/19

7:15 pm-2:40 pm

1 stop25h 25m

$829

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

4:30 pm-6:30 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Wed 8/19

6:35 am-9:09 pm

2 stops20h 34m

$894

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Wed 5/20

8:30 pm-6:30 pm

2 stops16h 00m

Trieste Ronchi dei Legionari

Wed 5/27

11:15 am-10:15 pm

2 stops17h 00m

$920

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Fri 4/24

8:30 pm-9:55 pm

3 stops19h 25m

Trieste Ronchi dei Legionari

Sun 5/3

11:15 am-3:10 pm

2 stops57h 55m

$976

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Fri 4/17

4:30 pm-10:55 pm

1 stop24h 25m

Trieste Ronchi dei Legionari

Sun 4/26

6:35 am-2:30 pm

1 stop13h 55m

$984

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

12:43 pm-6:30 pm

2 stops23h 47m

Trieste Ronchi dei Legionari

Wed 8/19

6:35 am-9:09 pm

2 stops20h 34m

$994

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Sat 8/8

6:55 pm-10:25 am

2 stops57h 30m

Trieste Ronchi dei Legionari

Wed 8/19

6:35 am-3:38 pm

2 stops39h 03m

$1,060

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Thu 4/2

5:30 pm-2:30 pm

2 stops15h 00m

Trieste Ronchi dei Legionari

Thu 4/9

6:35 am-5:00 pm

2 stops16h 25m

$1,463

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Wed 5/20

4:20 pm-10:25 am

2 stops36h 05m

Trieste Ronchi dei Legionari

Wed 5/27

6:35 am-10:19 am

2 stops33h 44m

$1,570

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Trieste from

How to get the cheapest flight ticket from District of Columbia 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 District of Columbia to Trieste Ronchi dei Legionari?

ITA Airways, Icelandair, and United Airlines are the most popular carriers operating from District of Columbia to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

United Airlines, Turkish Airlines and British Airways are the top three most popular airlines that fly to Trieste from District of Columbia according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 10 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

Cheap District of Columbia to Trieste flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Trieste

Fastest flight time

11h 15m

Direct flights

None
The fastest flight from District of Columbia to Trieste takes 11h 15m
There are no direct flights from District of Columbia to Trieste. There are no popular flight routes from District of Columbia to Trieste.
Search flight deals

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

    Prices for flights from District of Columbia to Trieste Ronchi dei Legionari Airport refresh daily.

  • How many operators does momondo search for flights from District of Columbia to Trieste Ronchi dei Legionari Airport?

  • How old do you have to be to fly from District of Columbia to Trieste Ronchi dei Legionari Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia 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.

Best airlines flying from District of Columbia to Trieste

Compare and see reviews for airlines that fly from District of Columbia to Trieste with momondo
Airline
Rating
Free Cancellation
Price
ITA AirwaysPriceFrom $664Free CancellationRating
6.7
1,149 reviews
Search ITA Airways flights

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 District of Columbia to Trieste?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Trieste. momondo saves you time and could save you money on your trip.

Can I find flights from District of Columbia to Trieste with flexible booking policies on momondo?

momondo does allow users to show only those flights to Trieste from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Trieste?

momondo provides multiple filters to help you find the best flight to Trieste from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of District of Columbia to Trieste flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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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
United Airlines
Turkish Airlines
British Airways
ITA Airways
Lufthansa
Delta
TAP AIR PORTUGAL
Aer Lingus
Scandinavian Airlines
SWISS