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Washington, D.C.

$718+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — WAS
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
1 adult, Economy
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Cheap 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 February 10, 2026.

This ITA Airways deal was found by Cheapflights users on 2/6. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:35 am
TRS
-
IAD
1 stop14h 05m
ITA Airways
Mon 9/284:30 pm
IAD
-
TRS
1 stop24h 25m
ITA Airways
Deal found 2/6$718
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/6. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:35 am
TRS
-
IAD
2 stops20h 00m
TAP AIR PORTUGAL
Mon 9/285:40 pm
IAD
-
TRS
2 stops18h 50m
TAP AIR PORTUGAL
Deal found 2/6$907
This Mytrip deal was found by Cheapflights users on 2/7. 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.
Mon 2/236:15 pm
TRS
-
IAD
2 stops26h 20m
Multiple Airlines
Fri 2/276:05 pm
IAD
-
TRS
2 stops17h 00m
Multiple Airlines
Deal found 2/7$918

Find 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 February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$918
(Mytrip)
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.
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From Trieste Ronchi dei Legionari to Washington, D.C. (WAS)
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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 February 10, 2026.
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

Mon 2/23

6:15 pm-2:35 pm

2 stops26h 20m

Washington, D.C. Dulles Intl

Fri 2/27

6:05 pm-5:05 pm

2 stops17h 00m

$918

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Mon 2/23

2:40 pm-8:15 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Fri 2/27

5:40 pm-10:55 pm

1 stop23h 15m

$1,187

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Mon 2/23

6:35 am-4:40 pm

2 stops40h 05m

Washington, D.C. Dulles Intl

Fri 2/27

8:30 pm-10:55 pm

2 stops20h 25m

$1,203

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

  • Most accurate provider: When it comes to deals on Trieste-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trieste-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $730). 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..

  • 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 $730). 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
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Fredericksburg
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