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Cheap flights from District of Columbia to Trieste from $412

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 10/13. 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

Logo
9:20 pm - 10:25 pmDCA-TRS
43h 05m2 stops
Logo
6:15 am - 9:56 pmTRS-DCA
21h 41m2 stops
$709
Find Deal
Sat, Jan 10 - Sat, Jan 24
TAP AIR PORTUGAL Logo
5:30 pm - 6:30 pmIAD-TRS
19h 00m2 stops
TAP AIR PORTUGAL Logo
3:15 pm - 9:00 pmTRS-IAD
35h 45m2 stops
$719TAP AIR PORTUGAL
Find Deal
Sat, Jan 10 - Sat, Jan 24
ITA Airways Logo
4:30 pm - 6:30 pmIAD-TRS
20h 00m1 stop
ITA Airways Logo
6:35 am - 2:40 pmTRS-IAD
14h 05m1 stop
$737ITA Airways
Find Deal
Thu, Sep 25 - Thu, Oct 2
ITA Airways Logo
4:30 pm - 8:55 pmIAD-TRS
22h 25m2 stops
ITA Airways Logo
6:35 am - 2:40 pmTRS-IAD
14h 05m1 stop
$752ITA Airways
Find Deal
Thu, Sep 25 - Thu, Oct 2
Logo
5:15 pm - 1:45 pmIAD-TRS
14h 30m1 stop
Logo
6:15 am - 2:35 pmTRS-IAD
14h 20m1 stop
$753
Find Deal
Sat, Jan 10 - Sat, Jan 24
Lufthansa Logo
6:00 pm - 1:55 pmIAD-TRS
13h 55m1 stop
Lufthansa Logo
2:45 pm - 3:50 pmTRS-IAD
31h 05m1 stop
$808Lufthansa
Find Deal
Thu, Nov 27 - Sun, Nov 30
KLM Logo
1:15 pm - 2:30 pmDCA-TRS
19h 15m2 stops
KLM Logo
3:15 pm - 8:33 pmTRS-DCA
35h 18m2 stops
$828KLM
Find Deal
Thu, Oct 16 - Mon, Oct 20
KLM Logo
5:00 pm - 10:55 pmDCA-TRS
23h 55m2 stops
KLM Logo
3:15 pm - 6:59 pmTRS-DCA
33h 44m2 stops
$911KLM
Find Deal
Thu, Oct 16 - Mon, Oct 20
Austrian Airlines Logo
5:25 pm - 10:55 pmIAD-TRS
23h 30m2 stops
Austrian Airlines Logo
7:25 pm - 2:35 pmTRS-IAD
25h 10m2 stops
$1,895Austrian Airlines
Find Deal
Thu, Sep 25 - Thu, Oct 2
Austrian Airlines Logo
5:25 pm - 10:55 pmIAD-TRS
47h 30m2 stops
Austrian Airlines Logo
6:35 am - 2:35 pmTRS-IAD
38h 00m2 stops
$6,810Austrian Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 19

KLM flights from District of Columbia to Trieste

Our best KLM deals on District of Columbia to Trieste flight tickets
KLM
Oct 16
DCA1:15 pmWashington, D.C. Reagan-National
19h 15m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Oct 20
TRS3:15 pmTrieste Ronchi dei Legionari
35h 18m
2 stops
DCA8:33 pmWashington, D.C. Reagan-National
$828
Find similar
KLM
Oct 16
DCA5:00 pmWashington, D.C. Reagan-National
23h 55m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Oct 20
TRS3:15 pmTrieste Ronchi dei Legionari
33h 44m
2 stops
DCA6:59 pmWashington, D.C. Reagan-National
$911
Find similar
KLM
Oct 16
DCA12:15 pmWashington, D.C. Reagan-National
28h 40m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Oct 20
TRS3:15 pmTrieste Ronchi dei Legionari
32h 45m
2 stops
DCA6:00 pmWashington, D.C. Reagan-National
$998
Find similar

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
Jan 10
IAD5:30 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Jan 24
TRS3:15 pmTrieste Ronchi dei Legionari
35h 45m
2 stops
IAD9:00 pmWashington, D.C. Dulles Intl
$719
Find similar
TAP AIR PORTUGAL
Nov 27
IAD5:30 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Nov 30
TRS11:15 amTrieste Ronchi dei Legionari
57h 20m
2 stops
IAD2:35 pmWashington, D.C. Dulles Intl
$779
Find similar
TAP AIR PORTUGAL
Aug 20
IAD10:20 pmWashington, D.C. Dulles Intl
18h 35m
2 stops
TRS10:55 pmTrieste Ronchi dei Legionari
Aug 31
TRS6:35 amTrieste Ronchi dei Legionari
20h 15m
2 stops
IAD8:50 pmWashington, D.C. Dulles Intl
$3,308
Find similar

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 August 12, 2025.
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

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Sat 1/10

9:20 pm-10:25 pm

2 stops43h 05m

Trieste Ronchi dei Legionari

Sat 1/24

6:15 am-9:56 pm

2 stops21h 41m

$709

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 1/10

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Sat 1/24

3:15 pm-9:00 pm

2 stops35h 45m

$719

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Thu 9/25

4:30 pm-6:30 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Thu 10/2

6:35 am-2:40 pm

1 stop14h 05m

$737

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Thu 9/25

4:30 pm-8:55 pm

2 stops22h 25m

Trieste Ronchi dei Legionari

Thu 10/2

6:35 am-2:40 pm

1 stop14h 05m

$752

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 1/10

5:15 pm-1:45 pm

1 stop14h 30m

Trieste Ronchi dei Legionari

Sat 1/24

6:15 am-2:35 pm

1 stop14h 20m

$753

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Thu 11/27

6:00 pm-1:55 pm

1 stop13h 55m

Trieste Ronchi dei Legionari

Sun 11/30

2:45 pm-3:50 pm

1 stop31h 05m

$808

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Thu 10/16

1:15 pm-2:30 pm

2 stops19h 15m

Trieste Ronchi dei Legionari

Mon 10/20

3:15 pm-8:33 pm

2 stops35h 18m

$828

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Thu 10/16

5:00 pm-10:55 pm

2 stops23h 55m

Trieste Ronchi dei Legionari

Mon 10/20

3:15 pm-6:59 pm

2 stops33h 44m

$911

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Thu 9/25

5:25 pm-10:55 pm

2 stops23h 30m

Trieste Ronchi dei Legionari

Thu 10/2

7:25 pm-2:35 pm

2 stops25h 10m

$1,895

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Wed 10/8

5:25 pm-10:55 pm

2 stops47h 30m

Trieste Ronchi dei Legionari

Sun 10/19

6:35 am-2:35 pm

2 stops38h 00m

$6,810

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 day to depart on your flight to Trieste?

The cheapest day to depart on your flight to Trieste is on a Tuesday when prices can be found for as low as $866. This is often the case because there is less demand to fly during this day of the week. Flights from District of Columbia to Trieste on a Friday will generally be more expensive and average around $988. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Best Price Found

$412

Fastest flight time

13h 55m

Direct flights

None

Airports in Trieste

1 airport
The best one-way flight to Trieste from District of Columbia in the past 72 hours is $412. The best round-trip flight deal from District of Columbia to Trieste found on momondo in the last 72 hours is $709.
The fastest flight from District of Columbia to Trieste takes 13h 55m
There are no direct flights from District of Columbia to Trieste. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Trieste Ronchi dei Legionari Airport and Washington, D.C. Dulles Intl Airport - Trieste Ronchi dei Legionari Airport.
There is 1 airport near Trieste: Trieste Ronchi dei Legionari (TRS)
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  • 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 $665Free CancellationRating
6.7
1,018 reviews
Search ITA Airways flights

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 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?

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