HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Trieste

$690+ Cheap flights from District of Columbia to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TRS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to Trieste with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to Trieste

Cheapest flights from District of Columbia to Trieste
Explore the most affordable flight options available from District of Columbia to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This KAYAK deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 pmIAD - TRS
1 stop14h 00mLufthansa
Sat 1/36:25 amTRS - IAD
1 stop19h 50mLufthansa
Deal found 12/17$2,232
This KAYAK deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:30 pmIAD - TRS
2 stops23h 00mTurkish Airlines
Sat 1/311:15 amTRS - IAD
2 stops38h 05mTurkish Airlines
Deal found 12/16$2,916
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:59 pmDCA - TRS
2 stops15h 26mUnited Airlines
Sat 1/36:35 amTRS - DCA
2 stops17h 30mUnited Airlines
Deal found 12/15$3,438
This Turkish Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/191:30 pmIAD - TRS
2 stops27h 25mMultiple Airlines
Thu 12/2511:15 amTRS - IAD
2 stops30h 30mMultiple Airlines
Deal found 12/17$8,033

Find flight deals from District of Columbia to Trieste

Keep the following information in mind while searching for District of Columbia to Trieste flight deals. Data was last updated December 18, 2025.

Round-trip from

$724
(Mytrip)

One-way from

$690
(Turkish Airlines)

Popular in

February

Cheapest in

April
From District of Columbia to Trieste Ronchi dei Legionari
Search Deals
One-way flight from District of Columbia to Trieste Ronchi dei Legionari
Search Deals
Highest demand for flights based on searches. 37% potential increase in price ($630 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 20% potential price decrease ($177 potential savings vs. average RT price).
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from District of Columbia to Trieste that are best for you.

Fly from

District of Columbia

Fly to

Trieste

Route

Depart

Return

Price

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 1/31

7:40 pm-12:20 pm

3 stops34h 40m

Trieste Ronchi dei Legionari

Sat 2/7

6:35 am-6:30 pm

3 stops17h 55m

$768

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Fri 1/30

10:30 pm-10:45 pm

2 stops18h 15m

Trieste Ronchi dei Legionari

Fri 2/6

7:15 pm-3:15 pm

3 stops26h 00m

$791

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Fri 1/30

4:15 pm-10:55 pm

3 stops24h 40m

Trieste Ronchi dei Legionari

Fri 2/6

6:35 am-9:58 pm

3 stops21h 23m

$894

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Sat 1/31

4:15 pm-9:10 pm

3 stops22h 55m

Trieste Ronchi dei Legionari

Sat 2/7

8:00 am-7:59 pm

3 stops17h 59m

$895

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Thu 1/29

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Mon 2/2

11:15 am-2:35 pm

2 stops33h 20m

$958

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Thu 1/29

1:35 pm-10:25 am

2 stops14h 50m

Trieste Ronchi dei Legionari

Thu 2/5

6:35 am-6:54 pm

2 stops18h 19m

$962

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Sun 4/12

11:05 am-1:55 pm

2 stops20h 50m

Trieste Ronchi dei Legionari

Tue 5/5

6:20 am-3:39 pm

2 stops15h 19m

$1,164

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Wed 1/28

12:59 pm-10:25 am

2 stops15h 26m

Trieste Ronchi dei Legionari

Sun 2/1

6:35 am-10:35 pm

2 stops22h 00m

$1,908

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Tue 12/30

12:59 pm-10:25 am

2 stops15h 26m

Trieste Ronchi dei Legionari

Sat 1/3

6:35 am-6:05 pm

2 stops17h 30m

$3,438

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Tue 2/10

9:15 pm-10:55 pm

2 stops19h 40m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 11 results
1
2

Best time to book a flight from District of Columbia to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Trieste

What is the cheapest month to book a flight from District of Columbia to Trieste?

Currently, June is the cheapest month in which you can book a flight from District of Columbia to Trieste (average of $446). Flying from District of Columbia to Trieste in December is currently the most expensive (average of $771). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trieste from District of Columbia?

    For a flight from District of Columbia to Trieste, you will be flying into Ronchi dei Legionari. Trieste Ronchi dei Legionari (TRS) is just 18.2 mi from the center of the city.

  • Can I find deals for flights from District of Columbia to Trieste that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Trieste.

  • Can I find deals for business class flights from District of Columbia to Trieste?

    Yes. Cheapflights offers flight deals from District of Columbia to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Trieste?

    Currently, June is the cheapest month in which you can book a flight from District of Columbia to Trieste (average of $446). Flying from District of Columbia to Trieste in December is currently the most expensive (average of $771). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Trieste

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Vicenza flights
Newark to Vicenza flights
Boston to Vicenza flights
LaGuardia to Vicenza flights
Dulles Intl to Vicenza flights
San Francisco to Vicenza flights
Dallas/Fort Worth to Vicenza flights
Atlanta to Vicenza flights
O'Hare Intl to Vicenza flights
Los Angeles to Vicenza flights
Denver to Vicenza flights
Detroit to Vicenza flights
Hobby to Vicenza flights
Baltimore to Vicenza flights
Reagan-National to Vicenza flights
Philadelphia to Vicenza flights
Minneapolis to Vicenza flights
Miami to Vicenza flights
Seattle to Vicenza flights
Tampa to Vicenza flights
Orlando to Vicenza flights
Sky Harbor Intl to Vicenza flights
George Bush Intcntl to Vicenza flights
Midway to Vicenza flights
Charlotte to Vicenza flights
Portland to Vicenza flights
Indianapolis to Vicenza flights
Austin to Vicenza flights
Kansas City to Vicenza flights
Raleigh to Vicenza flights
Cleveland to Vicenza flights
Grand Rapids to Vicenza flights
Love Field to Vicenza flights
Norfolk to Vicenza flights
San Jose to Vicenza flights
San Diego to Vicenza flights
Salt Lake City to Vicenza flights
Cincinnati to Vicenza flights
San Antonio to Vicenza flights
Fort Lauderdale to Vicenza flights
John F Kennedy Intl to Trieste flights
Columbus to Vicenza flights
Las Vegas to Vicenza flights
Santa Ana to Vicenza flights
Ontario to Vicenza flights
Nashville to Vicenza flights
West Palm Beach to Vicenza flights
Des Moines to Vicenza flights
Richmond to Vicenza flights
Pensacola to Vicenza flights

Top airline flying from District of Columbia to Trieste

Discover the top airline that operate flights from District of Columbia to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$664Average$910FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.