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Cheap flights from District of Columbia to Trieste from $543

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

Multiple Airlines Logo
5:30 pm - 6:30 pmIAD-TRS
19h 00m2 stops
Multiple Airlines Logo
11:15 am - 2:35 pmTRS-IAD
33h 20m3 stops
$764Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
6:00 pm - 9:10 pmIAD-TRS
21h 10m2 stops
Multiple Airlines Logo
1:05 pm - 2:40 pmTRS-IAD
31h 35m2 stops
$779Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
6:00 pm - 10:55 pmIAD-TRS
22h 55m3 stops
Multiple Airlines Logo
6:35 am - 8:05 pmTRS-IAD
19h 30m3 stops
$847Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Turkish Airlines Logo
2:30 pm - 6:30 pmIAD-TRS
23h 00m2 stops
Turkish Airlines Logo
11:15 am - 11:45 amTRS-IAD
30h 30m2 stops
$1,000Turkish Airlines
Find Deal
Mon, Oct 27 - Mon, Nov 3
Lufthansa Logo
6:00 pm - 2:00 pmIAD-TRS
14h 00m1 stop
Lufthansa Logo
2:40 pm - 3:50 pmTRS-IAD
31h 10m1 stop
$1,088Lufthansa
Find Deal
Mon, Nov 10 - Mon, Nov 17
Turkish Airlines Logo
9:15 pm - 2:30 pmIAD-TRS
35h 15m2 stops
Turkish Airlines Logo
11:15 am - 11:45 amTRS-IAD
30h 30m2 stops
$1,129Turkish Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
Multiple Airlines Logo
4:30 pm - 2:00 pmIAD-TRS
15h 30m2 stops
Multiple Airlines Logo
2:40 pm - 3:50 pmTRS-IAD
31h 10m1 stop
$1,181Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Lufthansa Logo
6:00 pm - 2:00 pmIAD-TRS
14h 00m1 stop
Lufthansa Logo
3:00 pm - 3:50 pmTRS-IAD
30h 50m1 stop
$1,269Lufthansa
Find Deal
Sun, Dec 28 - Sat, Jan 3
Austrian Airlines Logo
6:00 pm - 10:55 pmIAD-TRS
22h 55m2 stops
Austrian Airlines Logo
3:15 pm - 2:40 pmTRS-IAD
29h 25m2 stops
$1,551Austrian Airlines
Find Deal
Sat, Dec 27 - Fri, Jan 2
TAP AIR PORTUGAL Logo
5:30 pm - 6:30 pmIAD-TRS
19h 00m2 stops
TAP AIR PORTUGAL Logo
3:15 pm - 3:15 pmTRS-IAD
54h 00m2 stops
$1,610TAP AIR PORTUGAL
Find Deal
Mon, Dec 29 - Sat, Jan 3

Turkish Airlines flights from District of Columbia to Trieste

Our best Turkish Airlines deals on District of Columbia to Trieste flight tickets
Turkish Airlines
Oct 27
IAD2:30 pmWashington, D.C. Dulles Intl
23h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Nov 3
TRS11:15 amTrieste Ronchi dei Legionari
30h 30m
2 stops
IAD11:45 amWashington, D.C. Dulles Intl
$1,000
Find similar
Turkish Airlines
Nov 14
IAD9:15 pmWashington, D.C. Dulles Intl
35h 15m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 18
TRS11:15 amTrieste Ronchi dei Legionari
30h 30m
2 stops
IAD11:45 amWashington, D.C. Dulles Intl
$1,129
Find similar
Turkish Airlines
Nov 21
IAD1:30 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
TRS2:30 pmTrieste Ronchi dei Legionari
Nov 24
TRS11:15 amTrieste Ronchi dei Legionari
30h 30m
2 stops
IAD11:45 amWashington, D.C. Dulles Intl
$1,286
Find similar

Lufthansa flights from District of Columbia to Trieste

Our best Lufthansa deals on District of Columbia to Trieste flight tickets
Lufthansa
Nov 10
IAD6:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Nov 17
TRS2:40 pmTrieste Ronchi dei Legionari
31h 10m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,088
Find similar
Lufthansa
Dec 28
IAD6:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Jan 3
TRS3:00 pmTrieste Ronchi dei Legionari
30h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,269
Find similar
Lufthansa
Dec 28
IAD10:55 pmWashington, D.C. Dulles Intl
17h 30m
2 stops
TRS10:25 pmTrieste Ronchi dei Legionari
Jan 3
TRS3:00 pmTrieste Ronchi dei Legionari
30h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,303
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 September 29, 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

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 11/10

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Mon 11/17

11:15 am-2:35 pm

3 stops33h 20m

$764

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 11/10

6:00 pm-9:10 pm

2 stops21h 10m

Trieste Ronchi dei Legionari

Mon 11/17

1:05 pm-2:40 pm

2 stops31h 35m

$779

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 11/10

6:00 pm-10:55 pm

3 stops22h 55m

Trieste Ronchi dei Legionari

Mon 11/17

6:35 am-8:05 pm

3 stops19h 30m

$847

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 10/27

2:30 pm-6:30 pm

2 stops23h 00m

Trieste Ronchi dei Legionari

Mon 11/3

11:15 am-11:45 am

2 stops30h 30m

$1,000

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 11/10

6:00 pm-2:00 pm

1 stop14h 00m

Trieste Ronchi dei Legionari

Mon 11/17

2:40 pm-3:50 pm

1 stop31h 10m

$1,088

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Fri 11/14

9:15 pm-2:30 pm

2 stops35h 15m

Trieste Ronchi dei Legionari

Tue 11/18

11:15 am-11:45 am

2 stops30h 30m

$1,129

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 11/10

4:30 pm-2:00 pm

2 stops15h 30m

Trieste Ronchi dei Legionari

Mon 11/17

2:40 pm-3:50 pm

1 stop31h 10m

$1,181

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sun 12/28

6:00 pm-2:00 pm

1 stop14h 00m

Trieste Ronchi dei Legionari

Sat 1/3

3:00 pm-3:50 pm

1 stop30h 50m

$1,269

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 12/27

6:00 pm-10:55 pm

2 stops22h 55m

Trieste Ronchi dei Legionari

Fri 1/2

3:15 pm-2:40 pm

2 stops29h 25m

$1,551

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 12/29

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Sat 1/3

3:15 pm-3:15 pm

2 stops54h 00m

$1,610

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

Direct flights

None
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
1,051 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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