IAD - TRS

$665 Find Cheap Flights from Washington, D.C. to Trieste

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Trieste departing on 3/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Trieste

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Trieste, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Trieste, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$665
ITA Airways
Sun 3/22Tue 3/31
IAD - TRS • 1 stop
Cheapest one-way
$735
ITA Airways
Fri 4/10
IAD - TRS • 1 stop
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We hope you love your trip to Trieste!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Trieste (IAD-TRS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Trieste that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Trieste

Sun, Mar 22 - Tue, Mar 31
ITA Airways Logo
5:45 pm - 10:25 am
IAD
-
TRS
11h 40m1 stop
ITA Airways Logo
6:35 am - 2:40 pm
TRS
-
IAD
14h 05m1 stop
$665ITA Airways
Sun, Mar 22 - Tue, Mar 31
ITA Airways Logo
5:45 pm - 9:10 pm
IAD
-
TRS
22h 25m2 stops
ITA Airways Logo
6:35 am - 2:40 pm
TRS
-
IAD
14h 05m1 stop
$710ITA Airways
Sun, Apr 12 - Tue, May 5
ITA Airways Logo
4:30 pm - 10:25 am
IAD
-
TRS
11h 55m1 stop
ITA Airways Logo
6:35 am - 2:40 pm
TRS
-
IAD
14h 05m1 stop
$729ITA Airways
Sun, Mar 22 - Tue, Mar 31
Multiple Airlines Logo
8:40 pm - 12:20 pm
IAD
-
TRS
34h 40m3 stops
Multiple Airlines Logo
6:35 am - 7:20 pm
TRS
-
IAD
18h 45m3 stops
$767Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
10:30 pm - 10:45 pm
IAD
-
TRS
18h 15m2 stops
Multiple Airlines Logo
7:15 pm - 3:15 pm
TRS
-
IAD
26h 00m3 stops
$791Multiple Airlines
Sun, Mar 22 - Tue, Mar 31
Multiple Airlines Logo
1:13 pm - 2:00 pm
IAD
-
TRS
19h 47m2 stops
Multiple Airlines Logo
6:20 am - 7:40 pm
TRS
-
IAD
19h 20m2 stops
$797Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
7:40 pm - 10:55 pm
IAD
-
TRS
21h 15m3 stops
Multiple Airlines Logo
6:35 am - 6:30 pm
TRS
-
IAD
17h 55m3 stops
$806Multiple Airlines
Sun, Apr 12 - Tue, May 5
Multiple Airlines Logo
10:35 pm - 10:55 pm
IAD
-
TRS
18h 20m2 stops
Multiple Airlines Logo
11:15 am - 8:35 pm
TRS
-
IAD
15h 20m2 stops
$853Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
10:30 pm - 10:45 pm
IAD
-
TRS
18h 15m2 stops
Multiple Airlines Logo
8:30 pm - 3:15 pm
TRS
-
IAD
24h 45m2 stops
$895Multiple Airlines
Sun, Apr 12 - Tue, May 5
Multiple Airlines Logo
5:40 pm - 10:25 am
IAD
-
TRS
34h 45m3 stops
Multiple Airlines Logo
7:15 pm - 8:35 pm
TRS
-
IAD
31h 20m3 stops
$909Multiple Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Trieste flights

Get data-powered insights and trends into flights from Washington, D.C. to Trieste to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Trieste?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Trieste.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Trieste direct and that is ITA Airways. The best round-trip deal found from ITA Airways for the route is $664.

Find deals

Good to know

Cheapest flight$665
Flight from Washington, D.C. to Trieste

When to book flights from Washington, D.C. to Trieste

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to Trieste flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Trieste?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Trieste was $735 for a one-way ticket and $665 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Trieste?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Trieste.

  • Which aircraft models fly most regularly from Washington, D.C. to Trieste?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Trieste?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Trieste.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Trieste?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Trieste?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Washington, D.C. with another airline. Booking your flights between Washington, D.C. and TRS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Trieste?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Washington, D.C. to Trieste

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Trieste. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Trieste? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
ITA AirwaysOverall score based on 1107 reviews
7.4Crew
6.6Comfort
6.2Entertainment
6.0Food
6.9Boarding
Airline reviews

The check in process is chaotic. It says partially checked-in. Never heard of such a thing. Then lost our reserved seats when we finally checked in at the airport. The seats don’t recline. Then we had to get mew boarding passes at the connection. Last, my companion lost her baggage and up to now there’s no update. We’re already half-way through our vacation and still no news what happened to the luggage.

4.0 OkayAnonymous, Dec 2025
JFK - FCO
Read more ITA Airways reviews

The check in process is chaotic. It says partially checked-in. Never heard of such a thing. Then lost our reserved seats when we finally checked in at the airport. The seats don’t recline. Then we had to get mew boarding passes at the connection. Last, my companion lost her baggage and up to now there’s no update. We’re already half-way through our vacation and still no news what happened to the luggage.

Wonderful! Everyone very helpful and kind. Returning flight was cancelled but rebooking was easy.

Pretty normal flight was delayed due to traffic could have missed connecting flight to Venice but crew kept us well informed so we made it

Flight was on time and pretty standard. No Hiccups. I have no complaints, which is a lot to say about a 12 hour flight.

-The seats could be roomier -The entertainment in English could be more current! The moves were very old!!! -They served too many carbs! What happened to fruit and yogurt!!!!

We upgraded to premium economy and it made a difference in a 12 hr flight. I didn’t like that we had to deplane in the tarmac with our carryon luggage. Other than that, it was ok.

Everything was much better than I had expected, since I hadn’t heard of your airline before. I hope to take advantage of your excellent service again.

Staff were nice, we left on time and arrived early, food was good. Unfortunately, they lost one of our bags and have been unable to find it. So we are in Italy for a week for my husband‘s birthday and he does not have any of his clothing.

They gave us sandwiches as a meal twice. Snacks mid flight with cookies and a tuna panini. Then just the same tuna panini for dinner. That was it.

Top notch re cleanliness, comfort, operational. Attendants attentive, cheerful, courteous and professional. An unusually high-grade experience all around.

Everything you need to know for your flight from Washington, D.C. to Trieste

Information on your arrival and departure airports

Washington, D.C. (IAD)
Trieste (TRS)