Cheap Flights from Washington D.C. (WASA) to Trieste (TRS)

Compare Washington D.C. to Trieste flight deals

Find the cheapest month or even day of the year to fly to Trieste

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Flight deals from Washington D.C. to Trieste

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Trieste Airport? If you want to travel next month, return fares start from $1,379. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington D.C. to Trieste

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Trieste flights are currently cheapest in September.

Washington D.C. to Trieste: Alternative routes

Compare routes from Washington D.C. to Trieste below. You may find an airport to fly into that's cheaper, faster, or easier than Trieste.

Washington D.C. to Trieste: Flight information

The things to know before you go.
Cheapest flight found$1,163
Cheapest month to flySeptember

Finding cheap flights from Washington D.C. to Trieste: Frequently asked questions

The best price we found for a return flight from Washington D.C. to Trieste is $1,163. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington D.C. to Trieste. But we found flights with one stop from $1,163.
As of June 2026, there are no flights flying from Washington D.C. to Trieste.
The cheapest month to fly from Washington D.C. to Trieste is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Trieste Airport on Saturday, 12 September 2026.
No airlines currently offer direct flights between Washington D.C. and Trieste Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Trieste but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Trieste is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Trieste is Condor .

Travelling from Washington DC to Trieste Ronchi dei Legionari Airport (TRS): What you need to know

  • Trieste is six hours ahead of Washington DC. Trieste Ronchi dei Legionari Airport is located in Trieste, which runs on the UTC+1 timezone.

  • Your flight from Washington DC to TRS won't wait if you're running late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • If you're getting away during a popular month like July, head to the airport even earlier. It's smart to arrive up to four hours before an international flight and two hours ahead of a domestic departure. You can expect lines to be longer during high seasons like Christmas, New Year and spring break.

Airports in Washington DC

Ronald Reagan Washington National Airport (DCA)

  • Located around 6 kilometres from the centre of Washington DC, DCA can be reached in about 10 minutes by car (depending on traffic). The journey on public transport will take roughly 25 minutes.

  • Booked an early flight from Washington DC to Trieste Ronchi dei Legionari Airport? Avoid the last-minute rush to the terminal (and sneak in some extra snooze time) by picking one of these stays close to Ronald Reagan Washington National Airport:

  • When it comes to Ronald Reagan Washington National Airport's on-time performance, 71% of flights arrive within the expected time frame.

  • You'll find DCA at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Add a little extra to your holiday with a stopover on your flight from Washington DC to Trieste Ronchi dei Legionari Airport. Here's where you can connect between Washington Dulles International Airport and TRS:

    • Barcelona-El Prat Airport (BCN)

    • Rome Leonardo da Vinci Fiumicino Airport (FCO)

    • Dublin Airport (DUB)

  • Using public transport, you can travel from central Washington DC to IAD in about 1 hour 10 minutes. The terminal is roughly 40 kilometres away, and getting there by car takes approximately 45 minutes.

  • Get a head start on your holiday with an additional night away from home. Before your Washington DC to TRS flight, stay in one of these hotels close to Washington Dulles International Airport:

  • Washington Dulles International Airport has an on-time performance rate of 77%. This figure highlights how often flights that take off from this airport arrive on schedule.

  • IAD is located at 1 Saarinen Circle.

Baltimore Washington International Airport (BWI)

  • From central Washington DC, BWI is around 48 kilometres away. It takes roughly 40 minutes to arrive by car and 50 minutes or so if you take public transport.

  • Set yourself up for a smooth departure — stay close to Baltimore Washington International Airport and know you'll make it to your boarding gate with time to spare. Get comfy at one of these hotels the day before if you have an early Washington DC to Trieste Ronchi dei Legionari Airport flight:

  • Airports have an on-time performance rating that measures how often flights reach their destinations within the expected time frame. At BWI, that figure is 77%.

About Trieste Ronchi dei Legionari Airport (TRS)

  • The last thing you need is a long journey to your hotel if you're arriving on a late flight from Washington DC to Trieste Ronchi dei Legionari Airport. Book one of these accommodation options near TRS instead:

  • To secure the lowest price, book your ride around three weeks in advance of your Washington DC to Trieste Ronchi dei Legionari Airport flight.

Getting from Trieste Ronchi dei Legionari Airport (TRS) to central Trieste

  • Trieste Ronchi dei Legionari Airport is around 32 kilometres from central Trieste. It takes around 35 minutes or so to get to the city by car.

  • Travelling on public transport takes roughly 45 minutes.

How to find the cheapest flights from Washington DC to Trieste Ronchi dei Legionari Airport (TRS)

  • Right now, $766 is the best price we've found for a one-way ticket from Washington DC to Trieste Ronchi dei Legionari Airport. The cheapest price for a return flight is $1,163. Remember fares can change due to demand at the time of booking.

  • Don't leave everything to the last minute. You're more likely to find cheap flights from Washington DC to TRS if you book ahead. Airlines often offer some fantastic early bird deals.

  • If you're flexible with your trip dates, use the 'Whole month' search tool. It'll give you the cheapest price across the month when searching for your Washington DC to Trieste Ronchi dei Legionari Airport ticket.

  • There's no need to check every day to find out if fares have dropped when you set up a Price Alert. We'll notify you as soon as a better deal comes up on plane tickets from Washington DC to TRS.

  • Filters make it easier to dig up a deal for your flight from Washington DC to Trieste Ronchi dei Legionari Airport. Pick the departure times, carriers and stops that look good to you. Then sort the results by 'Cheapest' to bring up the lowest fares right away.

The best time to fly from Washington DC to Trieste Ronchi dei Legionari Airport (TRS)

  • It's time to work out your travel dates for your flight from Washington DC to Trieste Ronchi dei Legionari Airport (TRS). August is the most popular month to visit Trieste. If you're all about a more relaxed kind of trip, go in December.

  • Lock in a Washington DC to TRS plane ticket departing in August if you want to experience the city during its warmest month. You can expect temperatures in Trieste to range from 17ºC (63ºF) to 31ºC (88ºF).

  • Look for cheap tickets from Washington DC to Trieste Ronchi dei Legionari Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF).

More about Trieste

  • Once you've booked your flight from Washington DC to Trieste Ronchi dei Legionari Airport, find a hotel that's got location and comfort covered. Make one of these accommodation options your base for exploring Trieste:

  • There are loads of awesome things to do in Trieste when you're in the mood to sightsee. Make your way to Canale Grande followed by Miramare Castle and Riserva Naturale Marina di Miramare.

Explore more of Italy

  • Trieste has plenty going for it, but there are so many other parts of Italy you'll want to see. About 225 kilometres southwest of Trieste, a visit to Bologna will keep your itinerary packed. Don't miss top attractions like Piazza Maggiore, St. Peter's Basilica Church and Two Towers.

  • If there's time to check out another side of Italy, head for Florence, roughly 290 kilometres southwest of Trieste. Brunelleschi's Dome, David of Michelangelo and Uffizi Gallery are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.