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 48m.

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 9h 28m on average, while flying from Baltimore to Venice Marco Polo Airport is 10h 55m 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 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.

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

Rome (FCO) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

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.

$412 Cheap Flights from Washington, D.C. to Trieste in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:30 pm - 6:30 pm

IAD

TRS

20h 00m

1 stop

7:15 pm - 2:30 pm

TRS

IAD

25h 15m

1 stop

$762ITA Airways

Sat, Aug 15 - Sun, Aug 23

4:30 pm - 10:25 am

IAD

TRS

11h 55m

1 stop

11:15 am - 2:30 pm

TRS

IAD

33h 15m

1 stop

$780ITA Airways

Fri, Jul 10 - Wed, Aug 19

10:14 pm - 1:45 pm

IAD

TRS

33h 31m

2 stops

6:10 am - 4:05 pm

TRS

IAD

15h 55m

1 stop

$888Multiple Airlines

Sat, Aug 8 - Wed, Aug 19

5:25 pm - 1:45 pm

IAD

TRS

38h 20m

2 stops

6:10 am - 1:35 pm

TRS

IAD

13h 25m

1 stop

$890Lufthansa

Sat, Aug 8 - Wed, Aug 19

10:14 pm - 1:45 pm

IAD

TRS

33h 31m

2 stops

6:15 am - 8:24 pm

TRS

IAD

20h 09m

2 stops

$896Multiple Airlines

Sat, Aug 8 - Thu, Aug 20

5:25 pm - 1:45 pm

IAD

TRS

38h 20m

2 stops

6:10 am - 9:08 pm

TRS

IAD

20h 58m

2 stops

$905Lufthansa

Sat, Aug 8 - Wed, Aug 19

2:18 pm - 6:30 pm

BWI

TRS

22h 12m

2 stops

6:35 am - 9:23 pm

TRS

BWI

20h 48m

2 stops

$1,001KLM

Fri, Aug 14 - Sun, Aug 23

1:50 pm - 6:30 pm

DCA

TRS

22h 40m

2 stops

6:35 am - 8:33 pm

TRS

DCA

19h 58m

2 stops

$1,001KLM

Sat, Aug 15 - Sun, Aug 23

8:30 pm - 6:30 pm

BWI

TRS

16h 00m

2 stops

6:35 am - 7:40 pm

TRS

BWI

18h 05m

2 stops

$1,115Icelandair

Tue, Oct 20 - Sat, Oct 31

8:30 pm - 6:30 pm

BWI

TRS

16h 00m

2 stops

11:15 am - 10:15 pm

TRS

BWI

17h 00m

2 stops

$1,748Icelandair

Fri, Jul 10 - Wed, Aug 19

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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 15

IAD4:30 pmWashington, D.C. Dulles Intl

20h 00m

1 stop

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 23

TRS7:15 pmTrieste Ronchi dei Legionari

25h 15m

1 stop

IAD2:30 pmWashington, D.C. Dulles Intl

$762

ITA Airways

Jul 10

IAD4:30 pmWashington, D.C. Dulles Intl

11h 55m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Aug 19

TRS11:15 amTrieste Ronchi dei Legionari

33h 15m

1 stop

IAD2:30 pmWashington, D.C. Dulles Intl

$780

ITA Airways

Aug 8

IAD4:30 pmWashington, D.C. Dulles Intl

11h 55m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Aug 20

TRS11:15 amTrieste Ronchi dei Legionari

33h 15m

1 stop

IAD2:30 pmWashington, D.C. Dulles Intl

$782

KLM flights from Washington, D.C. to Trieste

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

KLM

Aug 14

BWI2:18 pmBaltimore/Washington

22h 12m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 23

TRS6:35 amTrieste Ronchi dei Legionari

20h 48m

2 stops

BWI9:23 pmBaltimore/Washington

$1,001

KLM

Aug 3

DCA5:00 pmWashington, D.C. Reagan-National

19h 30m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 10

TRS6:35 amTrieste Ronchi dei Legionari

22h 24m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

$1,104

KLM

Aug 14

DCA12:55 pmWashington, D.C. Reagan-National

23h 35m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Aug 23

TRS6:35 amTrieste Ronchi dei Legionari

19h 58m

2 stops

DCA8:33 pmWashington, D.C. Reagan-National

$1,216

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/15

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

$762

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Fri 7/10

4:30 pm-10:25 am

1 stop11h 55m

Trieste Ronchi dei Legionari

Wed 8/19

11:15 am-2:30 pm

1 stop33h 15m

$780

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

10:14 pm-1:45 pm

2 stops33h 31m

Trieste Ronchi dei Legionari

Wed 8/19

6:10 am-4:05 pm

1 stop15h 55m

$888

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

5:25 pm-1:45 pm

2 stops38h 20m

Trieste Ronchi dei Legionari

Wed 8/19

6:10 am-1:35 pm

1 stop13h 25m

$890

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

10:14 pm-1:45 pm

2 stops33h 31m

Trieste Ronchi dei Legionari

Thu 8/20

6:15 am-8:24 pm

2 stops20h 09m

$896

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 8/8

5:25 pm-1:45 pm

2 stops38h 20m

Trieste Ronchi dei Legionari

Wed 8/19

6:10 am-9:08 pm

2 stops20h 58m

$905

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Fri 8/14

2:18 pm-6:30 pm

2 stops22h 12m

Trieste Ronchi dei Legionari

Sun 8/23

6:35 am-9:23 pm

2 stops20h 48m

$1,001

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Sat 8/15

1:50 pm-6:30 pm

2 stops22h 40m

Trieste Ronchi dei Legionari

Sun 8/23

6:35 am-8:33 pm

2 stops19h 58m

$1,001

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Tue 10/20

8:30 pm-6:30 pm

2 stops16h 00m

Trieste Ronchi dei Legionari

Sat 10/31

6:35 am-7:40 pm

2 stops18h 05m

$1,115

Quickest round-trip

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Fri 7/10

8:30 pm-6:30 pm

2 stops16h 00m

Trieste Ronchi dei Legionari

Wed 8/19

11:15 am-10:15 pm

2 stops17h 00m

$1,748

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

ITA Airways, TAP AIR PORTUGAL, and United Airlines are the most popular carriers 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 10 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.
What is the most popular airline from Washington, D.C. to Trieste?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to Trieste is ITA Airways (100% of total bookings).

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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 $412

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. to Trieste departing on 8/7. 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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