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: 67% 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 40m.

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 41m on average, while flying from Baltimore to Venice Marco Polo Airport is 11h 30m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

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.

$526 Cheap Flights from Washington, D.C. to Trieste in 2026

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9:55 am - 11:05 pm

IAD

TRS

31h 10m

3 stops

1:30 pm - 3:10 pm

TRS

IAD

31h 40m

2 stops

$891Multiple Airlines

Sun, Aug 23 - Tue, Aug 25

4:30 pm - 6:30 pm

IAD

TRS

20h 00m

1 stop

3:15 pm - 2:30 pm

TRS

IAD

29h 15m

1 stop

$903ITA Airways

Tue, Sep 8 - Sun, Sep 13

8:20 pm - 11:05 pm

IAD

TRS

20h 45m

2 stops

1:30 pm - 3:10 pm

TRS

IAD

31h 40m

2 stops

$915Multiple Airlines

Sun, Aug 23 - Tue, Aug 25

4:30 pm - 2:30 pm

IAD

TRS

16h 00m

1 stop

7:15 pm - 2:30 pm

TRS

IAD

25h 15m

1 stop

$947ITA Airways

Sat, Oct 3 - Mon, Oct 12

5:55 pm - 2:00 pm

IAD

TRS

14h 05m

1 stop

6:10 am - 1:35 pm

TRS

IAD

13h 25m

1 stop

$1,038Lufthansa

Wed, Aug 12 - Wed, Aug 19

10:20 pm - 10:25 pm

IAD

TRS

18h 05m

2 stops

6:10 am - 1:35 pm

TRS

IAD

13h 25m

1 stop

$1,058Lufthansa

Wed, Aug 12 - Wed, Aug 19

11:20 pm - 6:30 pm

BWI

TRS

37h 10m

2 stops

11:15 am - 7:25 pm

TRS

BWI

38h 10m

2 stops

$1,270Icelandair

Sat, Oct 3 - Mon, Oct 12

4:20 pm - 10:25 am

DCA

TRS

36h 05m

2 stops

6:35 am - 9:48 pm

TRS

DCA

21h 13m

2 stops

$1,335United Airlines

Sun, Jul 19 - Thu, Jul 30

1:00 pm - 10:25 am

DCA

TRS

15h 25m

2 stops

6:35 am - 10:18 am

TRS

DCA

33h 43m

2 stops

$1,336United Airlines

Mon, Jul 20 - Wed, Jul 29

8:30 pm - 6:30 pm

BWI

TRS

16h 00m

2 stops

11:15 am - 10:15 pm

TRS

BWI

17h 00m

2 stops

$1,613Icelandair

Tue, Aug 11 - Thu, Aug 20

Lufthansa flights from Washington, D.C. to Trieste

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

Lufthansa

Aug 12

IAD5:55 pmWashington, D.C. Dulles Intl

14h 05m

1 stop

TRS2:00 pmTrieste Ronchi dei Legionari

Aug 19

TRS6:10 amTrieste Ronchi dei Legionari

13h 25m

1 stop

IAD1:35 pmWashington, D.C. Dulles Intl

$1,038

Lufthansa

Aug 12

IAD10:20 pmWashington, D.C. Dulles Intl

18h 05m

2 stops

TRS10:25 pmTrieste Ronchi dei Legionari

Aug 19

TRS6:10 amTrieste Ronchi dei Legionari

13h 25m

1 stop

IAD1:35 pmWashington, D.C. Dulles Intl

$1,058

Lufthansa

Aug 9

IAD3:25 pmWashington, D.C. Dulles Intl

16h 20m

1 stop

TRS1:45 pmTrieste Ronchi dei Legionari

Aug 20

TRS6:15 amTrieste Ronchi dei Legionari

13h 20m

1 stop

IAD1:35 pmWashington, D.C. Dulles Intl

$1,061

TAP AIR PORTUGAL flights from Washington, D.C. to Trieste

Our best TAP AIR PORTUGAL deals on Washington, D.C. to Trieste flight tickets

TAP AIR PORTUGAL

Aug 31

IAD10:35 pmWashington, D.C. Dulles Intl

18h 20m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

Sep 15

TRS11:15 amTrieste Ronchi dei Legionari

15h 20m

2 stops

IAD8:35 pmWashington, D.C. Dulles Intl

$1,140

TAP AIR PORTUGAL

May 12

IAD10:35 pmWashington, D.C. Dulles Intl

42h 20m

2 stops

TRS10:55 pmTrieste Ronchi dei Legionari

May 26

TRS6:35 amTrieste Ronchi dei Legionari

38h 35m

2 stops

IAD3:10 pmWashington, D.C. Dulles Intl

$1,158

TAP AIR PORTUGAL

Oct 11

IAD10:35 pmWashington, D.C. Dulles Intl

37h 55m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Oct 21

TRS11:15 amTrieste Ronchi dei Legionari

15h 20m

2 stops

IAD8:35 pmWashington, D.C. Dulles Intl

$1,170

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sun 8/23

9:55 am-11:05 pm

3 stops31h 10m

Trieste Ronchi dei Legionari

Tue 8/25

1:30 pm-3:10 pm

2 stops31h 40m

$891

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Tue 9/8

4:30 pm-6:30 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Sun 9/13

3:15 pm-2:30 pm

1 stop29h 15m

$903

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sun 8/23

8:20 pm-11:05 pm

2 stops20h 45m

Trieste Ronchi dei Legionari

Tue 8/25

1:30 pm-3:10 pm

2 stops31h 40m

$915

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sat 10/3

4:30 pm-2:30 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Mon 10/12

7:15 pm-2:30 pm

1 stop25h 15m

$947

Quickest round-trip

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Wed 8/12

5:55 pm-2:00 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Wed 8/19

6:10 am-1:35 pm

1 stop13h 25m

$1,038

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Wed 8/12

10:20 pm-10:25 pm

2 stops18h 05m

Trieste Ronchi dei Legionari

Wed 8/19

6:10 am-1:35 pm

1 stop13h 25m

$1,058

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Sat 10/3

11:20 pm-6:30 pm

2 stops37h 10m

Trieste Ronchi dei Legionari

Mon 10/12

11:15 am-7:25 pm

2 stops38h 10m

$1,270

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Sun 7/19

4:20 pm-10:25 am

2 stops36h 05m

Trieste Ronchi dei Legionari

Thu 7/30

6:35 am-9:48 pm

2 stops21h 13m

$1,335

Washington, D.C.Trieste

DCA - TRS

DCATRS

Washington, D.C. Reagan-National

Mon 7/20

1:00 pm-10:25 am

2 stops15h 25m

Trieste Ronchi dei Legionari

Wed 7/29

6:35 am-10:18 am

2 stops33h 43m

$1,336

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Tue 8/11

8:30 pm-6:30 pm

2 stops16h 00m

Trieste Ronchi dei Legionari

Thu 8/20

11:15 am-10:15 pm

2 stops17h 00m

$1,613

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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?

Icelandair, ITA Airways, and TAP AIR PORTUGAL 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 British Airways 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 49% 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

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Fastest flight time	13h 26m
Direct flights	None

The fastest flight from Washington, D.C. to Trieste takes 13h 26m

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 13h 26m, 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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Why should I use momondo to find a flight deal from Washington, D.C. to Trieste?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Trieste. momondo saves you time and could save you money on your trip.

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 $526

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 6/23. 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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How to get the cheapest flight ticket from Washington, D.C. to Trieste

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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?

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