Which layover airport has the shortest connection time from Washington, D.C. to Trieste?

Rome (FCO) has the shortest average layover time for this route: 2h 18m.

How long does it take to fly to Trieste?

Average flight duration from Washington, D.C. to Trieste depends on which airport you fly into and out of. Flying from Washington, D.C. to Venice Marco Polo Airport is 11h 35m on average, while flying from Baltimore to Venice Marco Polo Airport is 12h 15m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

Which layover airport offers the lowest fares from Washington, D.C. to Trieste?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $667.

Which airport is the most popular layover for flights between Washington, D.C. and Trieste?

Rome (FCO) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Washington, D.C. to Trieste?

Flights connecting via Rome (FCO) have the shortest average one-way travel time: 11h 50m.

When did momondo last update prices for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport?

Prices for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport are updated daily.

How old do you have to be to fly from Washington, D.C. to Trieste Ronchi dei Legionari Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Trieste Ronchi dei Legionari Airport.

What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

The travel and health documents you'll need for your trip to Trieste Ronchi dei Legionari Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$780 Cheap Flights from Washington, D.C. to Trieste in 2026

Find the cheapest flights from Washington, D.C. to Trieste

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:30 pm - 6:30 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

20h 00m1 stop Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

13h 55m1 stop Rome Fiumicino

$780ITA Airways

Mon, Aug 17 - Tue, Aug 25

4:30 pm - 10:55 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

24h 25m1 stop Rome Fiumicino

7:25 pm - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

25h 05m1 stop Rome Fiumicino

$780ITA Airways

Mon, Aug 17 - Mon, Aug 24

4:30 pm - 10:25 amIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

11h 55m1 stop Rome Fiumicino

11:15 am - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

33h 15m1 stop Rome Fiumicino

$812ITA Airways

Sun, Oct 11 - Sat, Oct 17

1:15 pm - 9:55 pmDCA Washington, D.C. Reagan-National-TRS Trieste Ronchi dei Legionari

26h 40m2 stops Boston Logan Intl Frankfurt am Main

6:15 am - 6:34 pmTRS Trieste Ronchi dei Legionari-DCA Washington, D.C. Reagan-National

18h 19m2 stops Frankfurt am Main Boston Logan Intl

$870Multiple Airlines

Fri, Sep 11 - Thu, Sep 17

4:30 pm - 6:30 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

20h 00m1 stop Rome Fiumicino

7:15 pm - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

25h 15m1 stop Rome Fiumicino

$880ITA Airways

Mon, Aug 17 - Sun, Aug 23

4:30 pm - 2:30 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

16h 00m1 stop Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

13h 55m1 stop Rome Fiumicino

$897ITA Airways

Mon, Sep 14 - Sun, Sep 27

4:30 pm - 10:25 amIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

11h 55m1 stop Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

13h 55m1 stop Rome Fiumicino

$926ITA Airways

Sun, Sep 20 - Tue, Sep 29

1:00 pm - 9:55 pmBWI Baltimore/Washington-TRS Trieste Ronchi dei Legionari

26h 55m2 stops Boston Logan Intl Frankfurt am Main

6:15 am - 10:40 pmTRS Trieste Ronchi dei Legionari-BWI Baltimore/Washington

22h 25m2 stops Frankfurt am Main Boston Logan Intl

$950Multiple Airlines

Fri, Sep 11 - Thu, Sep 17

4:30 pm - 2:30 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

16h 00m1 stop Rome Fiumicino

6:35 am - 2:30 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

13h 55m1 stop Rome Fiumicino

$959ITA Airways

Mon, Sep 14 - Mon, Sep 28

1:15 pm - 3:00 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

19h 45m2 stops Istanbul Tirana Rinas

4:15 pm - 7:00 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

32h 45m2 stops Valencia Casablanca Mohamed V

$960Multiple Airlines

Sun, Sep 20 - Sun, Sep 27

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ITA Airways flights from Washington, D.C. to Trieste

Our best ITA Airways deals on Washington, D.C. to Trieste flight tickets

ITA Airways

Aug 17

IAD4:30 pmWashington, D.C. Dulles Intl

20h 00m

1 stop

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 25

TRS6:35 amTrieste Ronchi dei Legionari

13h 55m

1 stop

IAD2:30 pmWashington, D.C. Dulles Intl

$780

ITA Airways

Oct 11

IAD4:30 pmWashington, D.C. Dulles Intl

11h 55m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Oct 17

TRS11:15 amTrieste Ronchi dei Legionari

33h 15m

1 stop

IAD2:30 pmWashington, D.C. Dulles Intl

$812

ITA Airways

Aug 15

IAD4:30 pmWashington, D.C. Dulles Intl

20h 00m

1 stop

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 24

TRS7:25 pmTrieste Ronchi dei Legionari

25h 05m

1 stop

IAD2:30 pmWashington, D.C. Dulles Intl

$830

Icelandair flights from Washington, D.C. to Trieste

Our best Icelandair deals on Washington, D.C. to Trieste flight tickets

Icelandair

Aug 17

IAD8:30 pmWashington, D.C. Dulles Intl

16h 00m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 25

TRS11:15 amTrieste Ronchi dei Legionari

38h 05m

2 stops

IAD7:20 pmWashington, D.C. Dulles Intl

$1,235

Icelandair

Aug 16

BWI11:20 pmBaltimore/Washington

37h 10m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 25

TRS11:15 amTrieste Ronchi dei Legionari

38h 10m

2 stops

BWI7:25 pmBaltimore/Washington

$1,246

Icelandair

Aug 16

BWI11:20 pmBaltimore/Washington

37h 10m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 24

TRS11:15 amTrieste Ronchi dei Legionari

38h 10m

2 stops

BWI7:25 pmBaltimore/Washington

$1,392

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Mon 8/17

4:30 pm-6:30 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Tue 8/25

6:35 am-2:30 pm

1 stop13h 55m

$780

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Mon 8/17

4:30 pm-10:55 pm

1 stop24h 25m

Trieste Ronchi dei Legionari

Mon 8/24

7:25 pm-2:30 pm

1 stop25h 05m

$780

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sun 10/11

4:30 pm-10:25 am

1 stop11h 55m

Trieste Ronchi dei Legionari

Sat 10/17

11:15 am-2:30 pm

1 stop33h 15m

$812

Washington, D.C.Trieste

DCA Washington, D.C. Reagan-National - TRS Trieste Ronchi dei Legionari

DCATRS

Washington, D.C. Reagan-National

Fri 9/11

1:15 pm-9:55 pm

2 stops26h 40m

Trieste Ronchi dei Legionari

Thu 9/17

6:15 am-6:34 pm

2 stops18h 19m

$870

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Mon 8/17

4:30 pm-6:30 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Sun 8/23

7:15 pm-2:30 pm

1 stop25h 15m

$880

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Mon 9/14

4:30 pm-2:30 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Sun 9/27

6:35 am-2:30 pm

1 stop13h 55m

$897

Quickest round-trip

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sun 9/20

4:30 pm-10:25 am

1 stop11h 55m

Trieste Ronchi dei Legionari

Tue 9/29

6:35 am-2:30 pm

1 stop13h 55m

$926

BaltimoreTrieste

BWI Baltimore/Washington - TRS Trieste Ronchi dei Legionari

BWITRS

Baltimore/Washington

Fri 9/11

1:00 pm-9:55 pm

2 stops26h 55m

Trieste Ronchi dei Legionari

Thu 9/17

6:15 am-10:40 pm

2 stops22h 25m

$950

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Mon 9/14

4:30 pm-2:30 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Mon 9/28

6:35 am-2:30 pm

1 stop13h 55m

$959

Washington, D.C.Trieste

IAD Washington, D.C. Dulles Intl - TRS Trieste Ronchi dei Legionari

IADTRS

Washington, D.C. Dulles Intl

Sun 9/20

1:15 pm-3:00 pm

2 stops19h 45m

Trieste Ronchi dei Legionari

Sun 9/27

4:15 pm-7:00 pm

2 stops32h 45m

$960

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. 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

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Other information

What is the cheapest airline that flies from Washington, D.C. to Trieste Ronchi dei Legionari?

TAP AIR PORTUGAL is the most popular carrier operating from Washington, D.C. to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

United Airlines, Turkish Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Trieste from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 9 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. to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Trieste according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Trieste (WAS to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Trieste

Fastest flight time	10h 50m
Direct flights	None

The fastest flight from Washington, D.C. to Trieste takes 10h 50m

There are no direct flights from Washington, D.C. to Trieste. There are no popular flight routes from Washington, D.C. to Trieste.

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Frequently asked questions about flying from Washington, D.C. to Trieste

How far is Washington, D.C. to Trieste Ronchi dei Legionari by plane?
A flight from Washington, D.C. to Trieste Ronchi dei Legionari will travel around 4405.3 mi. Flights usually cover this in 10h 50m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport?
Prices for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport are updated daily.
How old do you have to be to fly from Washington, D.C. to Trieste Ronchi dei Legionari Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Trieste Ronchi dei Legionari Airport.
What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?
The travel and health documents you'll need for your trip to Trieste Ronchi dei Legionari Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Can I find flights from Washington, D.C. to Trieste with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Trieste flights to just show those with 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?

If you are simply researching potential flights to Trieste, momondo offers a useful price alert feature which will track prices for flights to Trieste from Washington, D.C. and alert you when they change.

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Cheap flights from Washington, D.C. to Trieste from $780

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Trieste departing on 8/17. 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. to Trieste

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How to get the cheapest flight ticket from Washington, D.C. to Trieste

What is the cheapest airline that flies from Washington, D.C. to Trieste Ronchi dei Legionari?

What airlines fly to Trieste?

Which airport is the most popular layover for flights between Washington, D.C. and Trieste?

Which layover airport offers the lowest fares from Washington, D.C. to Trieste?

Which layover airport has the shortest travel time from Washington, D.C. to Trieste?

Which layover airport has the shortest connection time from Washington, D.C. to Trieste?

How long does it take to fly to Trieste?

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

Cheap Washington, D.C. to Trieste (WAS to TRS) flight deals and tips

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Frequently asked questions about flying from Washington, D.C. to Trieste

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List of cabin classes available on flights landing in Trieste. Availability may vary depending on flight origin and airline.

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