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 47m on average, while flying from Baltimore to Venice Marco Polo Airport is 10h 45m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

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

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

What airlines fly to Trieste?

United Airlines, British Airways and ITA 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 11 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

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 many operators does momondo search for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport?

There is 1 operator available for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport as of August 2025.

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.

$275 Cheap Flights from Washington, D.C. to Trieste in 2025

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

Round-trip

One-way

Cheap round-trip flights

6:00 pm - 2:05 pmIAD-TRS

14h 05m1 stop

6:15 am - 3:50 pmTRS-IAD

15h 35m1 stop

$701Lufthansa

Find Deal

Wed, Dec 3 - Sat, Dec 20

6:10 pm - 2:05 pmIAD-TRS

13h 55m1 stop

6:30 am - 3:50 pmTRS-IAD

15h 20m1 stop

$712Lufthansa

Find Deal

Mon, Sep 15 - Tue, Sep 23

4:30 pm - 2:30 pmIAD-TRS

16h 00m1 stop

7:25 pm - 2:40 pmTRS-IAD

25h 15m1 stop

$737ITA Airways

Find Deal

Sun, Sep 28 - Fri, Oct 3

4:30 pm - 2:30 pmIAD-TRS

16h 00m1 stop

6:35 am - 2:40 pmTRS-IAD

14h 05m1 stop

$748ITA Airways

Find Deal

Mon, Sep 22 - Tue, Sep 30

6:50 pm - 9:20 pmBWI-TRS

20h 30m2 stops

3:15 pm - 11:37 pmTRS-BWI

38h 22m3 stops

$816

Find Deal

Sun, Sep 14 - Sun, Sep 21

6:50 pm - 8:55 pmBWI-TRS

20h 05m3 stops

6:35 am - 5:40 pmTRS-BWI

17h 05m3 stops

$817

Find Deal

Sun, Sep 14 - Sun, Sep 21

1:30 pm - 6:30 pmIAD-TRS

23h 00m2 stops

6:35 am - 11:45 amTRS-IAD

35h 10m2 stops

$941Turkish Airlines

Find Deal

Mon, Sep 15 - Tue, Sep 23

5:25 pm - 10:25 amIAD-TRS

35h 00m2 stops

7:25 pm - 2:35 pmTRS-IAD

25h 10m2 stops

$971Austrian Airlines

Find Deal

Mon, Sep 22 - Wed, Oct 1

5:25 pm - 10:25 amIAD-TRS

35h 00m2 stops

7:15 pm - 2:35 pmTRS-IAD

25h 20m2 stops

$972Austrian Airlines

Find Deal

Mon, Sep 22 - Tue, Sep 30

1:30 pm - 6:30 pmIAD-TRS

23h 00m2 stops

6:35 am - 11:45 amTRS-IAD

35h 10m2 stops

$1,052Turkish Airlines

Find Deal

Mon, Sep 22 - Wed, Oct 1

Lufthansa flights from Washington, D.C. to Trieste

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

Lufthansa

Dec 3

IAD6:00 pmWashington, D.C. Dulles Intl

14h 05m

1 stop

TRS2:05 pmTrieste Ronchi dei Legionari

Dec 20

TRS6:15 amTrieste Ronchi dei Legionari

15h 35m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$701

Find similar

Lufthansa

Sep 15

IAD6:10 pmWashington, D.C. Dulles Intl

13h 55m

1 stop

TRS2:05 pmTrieste Ronchi dei Legionari

Sep 23

TRS6:30 amTrieste Ronchi dei Legionari

15h 20m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$712

Find similar

Lufthansa

Aug 27

IAD10:20 pmWashington, D.C. Dulles Intl

18h 15m

2 stops

TRS10:35 pmTrieste Ronchi dei Legionari

Sep 2

TRS6:30 amTrieste Ronchi dei Legionari

13h 00m

1 stop

IAD1:30 pmWashington, D.C. Dulles Intl

$739

Find similar

Turkish Airlines flights from Washington, D.C. to Trieste

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

Turkish Airlines

Sep 15

IAD1:30 pmWashington, D.C. Dulles Intl

23h 00m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Sep 23

TRS6:35 amTrieste Ronchi dei Legionari

35h 10m

2 stops

IAD11:45 amWashington, D.C. Dulles Intl

$941

Find similar

Turkish Airlines

Sep 22

IAD1:30 pmWashington, D.C. Dulles Intl

23h 00m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Oct 1

TRS6:35 amTrieste Ronchi dei Legionari

35h 10m

2 stops

IAD11:45 amWashington, D.C. Dulles Intl

$1,052

Find similar

Turkish Airlines

Nov 1

IAD10:10 pmWashington, D.C. Dulles Intl

39h 20m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Nov 8

TRS11:15 amTrieste Ronchi dei Legionari

38h 00m

2 stops

IAD7:15 pmWashington, D.C. Dulles Intl

$1,082

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Wed 12/3

6:00 pm-2:05 pm

1 stop14h 05m

Trieste Ronchi dei Legionari

Sat 12/20

6:15 am-3:50 pm

1 stop15h 35m

$701

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 9/15

6:10 pm-2:05 pm

1 stop13h 55m

Trieste Ronchi dei Legionari

Tue 9/23

6:30 am-3:50 pm

1 stop15h 20m

$712

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Sun 9/28

4:30 pm-2:30 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Fri 10/3

7:25 pm-2:40 pm

1 stop25h 15m

$737

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 9/22

4:30 pm-2:30 pm

1 stop16h 00m

Trieste Ronchi dei Legionari

Tue 9/30

6:35 am-2:40 pm

1 stop14h 05m

$748

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Sun 9/14

6:50 pm-9:20 pm

2 stops20h 30m

Trieste Ronchi dei Legionari

Sun 9/21

3:15 pm-11:37 pm

3 stops38h 22m

$816

BaltimoreTrieste

BWI - TRS

BWITRS

Baltimore/Washington

Sun 9/14

6:50 pm-8:55 pm

3 stops20h 05m

Trieste Ronchi dei Legionari

Sun 9/21

6:35 am-5:40 pm

3 stops17h 05m

$817

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 9/15

1:30 pm-6:30 pm

2 stops23h 00m

Trieste Ronchi dei Legionari

Tue 9/23

6:35 am-11:45 am

2 stops35h 10m

$941

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 9/22

5:25 pm-10:25 am

2 stops35h 00m

Trieste Ronchi dei Legionari

Wed 10/1

7:25 pm-2:35 pm

2 stops25h 10m

$971

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 9/22

5:25 pm-10:25 am

2 stops35h 00m

Trieste Ronchi dei Legionari

Tue 9/30

7:15 pm-2:35 pm

2 stops25h 20m

$972

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Mon 9/22

1:30 pm-6:30 pm

2 stops23h 00m

Trieste Ronchi dei Legionari

Wed 10/1

6:35 am-11:45 am

2 stops35h 10m

$1,052

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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

Prices

Airlines

Other information

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. 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.

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

Best Price Found	$275
Fastest flight time	10h 45m
Direct flights	None
Airports in Trieste	1 airport

The best one-way flight to Trieste from Washington, D.C. in the past 72 hours is $275. The best round-trip flight deal from Washington, D.C. to Trieste found on momondo in the last 72 hours is $701.

The fastest flight from Washington, D.C. to Trieste takes 10h 45m

There are no direct flights from Washington, D.C. to Trieste. Popular non-direct routes for this connection are Baltimore/Washington Airport - Trieste Ronchi dei Legionari Airport, Washington, D.C. Reagan-National Airport - Trieste Ronchi dei Legionari Airport and Washington, D.C. Dulles Intl Airport - Trieste Ronchi dei Legionari Airport.

There is 1 airport near Trieste: Trieste Ronchi dei Legionari (TRS)

Search flight deals

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 45m, 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 many operators does momondo search for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport?
There is 1 operator available for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport as of August 2025.
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).

Best airlines flying from Washington, D.C. to Trieste

Compare and see reviews for airlines that fly from Washington, D.C. to Trieste with momondo

Airline	Rating	Free Cancellation	Price
ITA Airways	PriceFrom $665	Free Cancellation	Rating 6.7 1,011 reviews		Search ITA Airways flights

Grado

Udine

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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.

An easier way to manage your Trieste trip

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Cheap flights from Washington, D.C. to Trieste from $275

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 10/4. 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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Lufthansa flights from Washington, D.C. to Trieste

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

Turkish Airlines flights from Washington, D.C. to Trieste

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

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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

What is the cheapest day to depart on your flight to Trieste?

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

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

What airlines fly 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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Trieste

How far is Washington, D.C. to Trieste Ronchi dei Legionari by plane?

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

How many operators does momondo search for flights from Washington, D.C. to Trieste Ronchi dei Legionari Airport?

How old do you have to be to fly 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?

What is the most popular airline from Washington, D.C. to Trieste?

Best airlines flying from Washington, D.C. to Trieste

Compare and see reviews for airlines that fly from Washington, D.C. to Trieste with momondo

Traveling to a place near Trieste?

Why use momondo?

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

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

How can momondo help me find flights from Washington, D.C. to Trieste?

I’m not ready to book a flight from Washington, D.C. to Trieste right now. Can momondo alert me if prices change?

An easier way to manage your Trieste trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Italy

Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo