HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$659+ Cheap flights from Trieste (TRS) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — WAS
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Trieste to Washington, D.C. 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 Trieste to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$659
(Lufthansa)
Provider with most accurate pricing for Trieste Ronchi dei Legionari-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trieste Ronchi dei Legionari-Washington, D.C. (WAS) flights.
Search Deals
From Trieste Ronchi dei Legionari to Washington, D.C. (WAS)
Search Deals

Find flight deals from Trieste to Washington, D.C.

Cheapest flights from Trieste to Washington, D.C.
Explore the most affordable flight options available from Trieste to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Lufthansa deal was found by Cheapflights users on 10/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:25 amTRS - IAD
1 stop19h 50mLufthansa
Tue 11/185:15 pmIAD - TRS
1 stop14h 45mLufthansa
Deal found 10/29$659
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:15 amTRS - IAD
3 stops33h 25mMultiple Airlines
Tue 11/188:30 pmIAD - TRS
2 stops16h 20mMultiple Airlines
Deal found 10/29$769
This Emirates deal was found by Cheapflights users on 10/29. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:15 amTRS - IAD
2 stops26h 55mEmirates
Fri 1/210:30 amIAD - TRS
2 stops50h 00mEmirates
Deal found 10/29$4,249

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trieste to Washington, D.C. 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 October 29, 2025.
Use the filters below to find and compare flights from Trieste to Washington, D.C. that are best for you.

Fly from

Trieste

Fly to

Washington, D.C.

Route

Depart

Return

Price

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 3/11

2:40 pm-9:15 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 3/15

7:00 pm-2:00 pm

1 stop14h 00m

$677

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 3/11

7:15 pm-3:40 pm

1 stop25h 25m

Washington, D.C. Dulles Intl

Sun 3/15

5:45 pm-10:25 am

1 stop11h 40m

$708

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 3/11

6:35 am-10:00 pm

2 stops20h 25m

Washington, D.C. Dulles Intl

Sun 3/15

11:30 pm-6:30 pm

2 stops38h 00m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Trieste to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Trieste to Washington, D.C. in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Trieste-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Trieste-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Trieste-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trieste-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trieste-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Trieste to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Trieste 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 Trieste to Washington, D.C.

What is the cheapest month to book a flight from Trieste to Washington, D.C.?

Currently, September is the cheapest month in which you can book a flight from Trieste to Washington, D.C. (average of $524). Flying from Trieste to Washington, D.C. in December is currently the most expensive (average of $698). 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 Trieste to Washington, D.C.. 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 from for flights from Trieste to Washington, D.C.?

    Located just 18.2 mi from the city center, Trieste Ronchi dei Legionari is the airport most travelers will use when flying to Washington, D.C. from Trieste. Booking flights from Ronchi dei Legionari (TRS) to Washington, D.C. should be relatively easy as there are 0 daily outbound flights to Washington, D.C. from 0 different airlines.

  • How long is the flight from Trieste to Washington, D.C.?

    Departing from Trieste to Washington, D.C. will take you 11h 35m. There are 4403 mi between Trieste and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Trieste to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Trieste to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trieste to Washington, D.C.?

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

  • Can I find deals for business class flights from Trieste to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Trieste to Washington, D.C. 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 Trieste to Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from Trieste to Washington, D.C. (average of $524). Flying from Trieste to Washington, D.C. in December is currently the most expensive (average of $698). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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 Trieste to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Vicenza to Reagan-National flights
Vicenza to Dulles Intl flights

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.