Cheap flights from Washington, D.C. Dulles Intl Airport to Trieste from $503
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport 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.
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ITA Airways flights from Washington, D.C. Dulles Intl Airport to Trieste
Our best ITA Airways deals on Washington, D.C. Dulles Intl Airport to Trieste flight tickets
Lufthansa flights from Washington, D.C. Dulles Intl Airport to Trieste
Our best Lufthansa deals on Washington, D.C. Dulles Intl Airport to Trieste flight tickets
See travel insights to Trieste from
How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport 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.
What is the cheapest time of day to depart on your flight to Trieste?
Our most recent data shows that the best time of day to fly to Trieste is in the afternoon. Flights from Washington, D.C. Dulles Intl Airport to Trieste during this time can be as low as $969. Flights to Trieste are more costly in the afternoon, with an average ticket price of $969. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari?
ITA Airways and Austrian Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari
What airlines fly to Trieste?
United Airlines, ITA Airways and Turkish Airlines are the top three most popular airlines that fly to Trieste from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 13 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.
When to book flights from Washington, D.C. Dulles Intl Airport to Trieste
Cheap Washington, D.C. Dulles Intl Airport to Trieste (IAD to TRS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Trieste
How far is Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari by plane?
A flight from Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari will travel around 4420.8 mi. By plane, this route typically takes 11h 55m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport are updated daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport?
As of April 2025, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Trieste Ronchi dei Legionari Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport 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.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Trieste?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to Trieste is ITA Airways (76% of total bookings). The next most popular airline is Lufthansa (24%).
Best airlines flying from Washington, D.C. Dulles Intl Airport to Trieste
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Trieste with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $664 | Free Cancellation | Rating 6.7 964 reviews | |||
| PriceFrom $796 | Free Cancellation | Rating 6.7 7,011 reviews |
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Why should I use momondo to find a flight deal from Washington, D.C. to Trieste?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Trieste for you.
Can I find flights from Washington, D.C. to Trieste with flexible booking policies on momondo?
All flight searches from Washington, D.C. to Trieste on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Trieste?
Once you have performed a search for Washington, D.C. to Trieste flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Washington, D.C. to Trieste right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Washington, D.C. to Trieste flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.