Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Trieste to Washington, D.C. from $588

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trieste to Washington, D.C. departing on 7/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:15 am - 2:35 pm
TRS
-
IAD
14h 20m
1 stop
Lufthansa Logo
6:20 pm - 2:05 pm
IAD
-
TRS
13h 45m
2 stops
$696Lufthansa
Thu, Feb 12 - Sat, Feb 28
Lufthansa Logo
6:15 am - 3:50 pm
TRS
-
IAD
15h 35m
1 stop
Lufthansa Logo
6:00 pm - 2:05 pm
IAD
-
TRS
14h 05m
1 stop
$699Lufthansa
Thu, Feb 12 - Sat, Feb 28
Lufthansa Logo
6:15 am - 3:30 pm
TRS
-
IAD
15h 15m
2 stops
Lufthansa Logo
6:20 pm - 2:05 pm
IAD
-
TRS
13h 45m
2 stops
$736Lufthansa
Thu, Feb 12 - Sat, Feb 28
Multiple Airlines Logo
7:15 pm - 3:50 pm
TRS
-
IAD
26h 35m
3 stops
Multiple Airlines Logo
5:15 pm - 10:55 pm
IAD
-
TRS
23h 40m
3 stops
$770Multiple Airlines
Mon, Feb 2 - Fri, Feb 20
Multiple Airlines Logo
6:35 am - 8:54 pm
TRS
-
IAD
20h 19m
2 stops
Multiple Airlines Logo
6:00 pm - 2:05 pm
IAD
-
TRS
14h 05m
1 stop
$789Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
11:15 am - 4:05 pm
TRS
-
IAD
34h 50m
3 stops
Multiple Airlines Logo
6:05 pm - 10:25 am
IAD
-
TRS
34h 20m
3 stops
$794Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
TAP AIR PORTUGAL Logo
6:35 am - 9:00 pm
TRS
-
IAD
20h 25m
2 stops
TAP AIR PORTUGAL Logo
10:30 pm - 6:30 pm
IAD
-
TRS
38h 00m
2 stops
$801TAP AIR PORTUGAL
Wed, Feb 25 - Wed, Mar 4
Lufthansa Logo
6:35 am - 3:25 pm
TRS
-
IAD
14h 50m
1 stop
Lufthansa Logo
5:15 pm - 2:05 pm
IAD
-
TRS
14h 50m
1 stop
$833Lufthansa
Wed, Feb 25 - Wed, Mar 4
TAP AIR PORTUGAL Logo
6:35 am - 3:15 pm
TRS
-
IAD
38h 40m
2 stops
TAP AIR PORTUGAL Logo
10:30 pm - 6:30 pm
IAD
-
TRS
38h 00m
2 stops
$859TAP AIR PORTUGAL
Wed, Feb 11 - Sun, Feb 15
TAP AIR PORTUGAL Logo
11:15 am - 3:15 pm
TRS
-
IAD
58h 00m
2 stops
TAP AIR PORTUGAL Logo
5:30 pm - 6:30 pm
IAD
-
TRS
19h 00m
2 stops
$866TAP AIR PORTUGAL
Tue, Feb 10 - Mon, Feb 16

Lufthansa flights from Trieste to Washington, D.C.

Our best Lufthansa deals on Trieste to Washington, D.C. flight tickets
Lufthansa
Feb 12
TRS6:15 amTrieste Ronchi dei Legionari
14h 20m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
Feb 28
IAD6:20 pmWashington, D.C. Dulles Intl
13h 45m
2 stops
TRS2:05 pmTrieste Ronchi dei Legionari
$696
Lufthansa
Feb 12
TRS6:15 amTrieste Ronchi dei Legionari
15h 35m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
Feb 28
IAD6:00 pmWashington, D.C. Dulles Intl
14h 05m
1 stop
TRS2:05 pmTrieste Ronchi dei Legionari
$699
Lufthansa
Feb 12
TRS6:15 amTrieste Ronchi dei Legionari
15h 15m
2 stops
IAD3:30 pmWashington, D.C. Dulles Intl
Feb 28
IAD6:20 pmWashington, D.C. Dulles Intl
13h 45m
2 stops
TRS2:05 pmTrieste Ronchi dei Legionari
$736

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

Our best TAP AIR PORTUGAL deals on Trieste to Washington, D.C. flight tickets
TAP AIR PORTUGAL
Feb 25
TRS6:35 amTrieste Ronchi dei Legionari
20h 25m
2 stops
IAD9:00 pmWashington, D.C. Dulles Intl
Mar 4
IAD10:30 pmWashington, D.C. Dulles Intl
38h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$801
TAP AIR PORTUGAL
Feb 11
TRS6:35 amTrieste Ronchi dei Legionari
38h 40m
2 stops
IAD3:15 pmWashington, D.C. Dulles Intl
Feb 16
IAD5:30 pmWashington, D.C. Dulles Intl
19h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$859
TAP AIR PORTUGAL
Feb 10
TRS11:15 amTrieste Ronchi dei Legionari
58h 00m
2 stops
IAD3:15 pmWashington, D.C. Dulles Intl
Feb 15
IAD10:30 pmWashington, D.C. Dulles Intl
38h 00m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
$866

momondo Fare Finder

 
Customize your flight search to find flights from Trieste to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 13, 2026.
Use the filters below to find and compare flights from Trieste to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Thu 2/12

6:15 am-2:35 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Sat 2/28

6:20 pm-2:05 pm

2 stops13h 45m

$696

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Thu 2/12

6:15 am-3:50 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sat 2/28

6:00 pm-2:05 pm

1 stop14h 05m

$699

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Thu 2/12

6:15 am-3:30 pm

2 stops15h 15m

Washington, D.C. Dulles Intl

Sat 2/28

6:20 pm-2:05 pm

2 stops13h 45m

$736

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Mon 2/2

7:15 pm-3:50 pm

3 stops26h 35m

Washington, D.C. Dulles Intl

Fri 2/20

5:15 pm-10:55 pm

3 stops23h 40m

$770

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 2/25

6:35 am-8:54 pm

2 stops20h 19m

Washington, D.C. Dulles Intl

Wed 3/4

6:00 pm-2:05 pm

1 stop14h 05m

$789

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 2/25

11:15 am-4:05 pm

3 stops34h 50m

Washington, D.C. Dulles Intl

Wed 3/4

6:05 pm-10:25 am

3 stops34h 20m

$794

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 2/25

6:35 am-9:00 pm

2 stops20h 25m

Washington, D.C. Dulles Intl

Wed 3/4

10:30 pm-6:30 pm

2 stops38h 00m

$801

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 2/25

6:35 am-3:25 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

Wed 3/4

5:15 pm-2:05 pm

1 stop14h 50m

$833

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Wed 2/11

6:35 am-3:15 pm

2 stops38h 40m

Washington, D.C. Dulles Intl

Sun 2/15

10:30 pm-6:30 pm

2 stops38h 00m

$859

TriesteWashington, D.C.

TRS - IAD

TRSIAD

Trieste Ronchi dei Legionari

Tue 2/10

11:15 am-3:15 pm

2 stops58h 00m

Washington, D.C. Dulles Intl

Mon 2/16

5:30 pm-6:30 pm

2 stops19h 00m

$866

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

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

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 airline that flies from Trieste Ronchi dei Legionari to Washington, D.C.?

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

What airlines fly to Washington, D.C.?

United Airlines, British Airways and Lufthansa are the top three most popular airlines that fly to Washington, D.C. from Trieste according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

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

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

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

Fastest flight time

15h 35m

Direct flights

None
The fastest flight from Trieste to Washington, D.C. takes 15h 35m
There are no direct flights from Trieste to Washington, D.C.. There are no popular flight routes from Trieste to Washington, D.C..
Search flight deals

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

    Washington, D.C. is 4405.3 mi away from Trieste Ronchi dei Legionari. Typically, this will take 15h 35m by plane in normal conditions.

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

    Prices for flights from Trieste Ronchi dei Legionari Airport to Washington, D.C. are refreshed on a daily basis.

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

    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 Trieste Ronchi dei Legionari Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Glen Burnie
Linthicum Heights
Reston

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Trieste.

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

momondo does allow users to show only those flights to Washington, D.C. from Trieste which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Trieste.

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

Of course. momondo tracks the price of Trieste to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Washington, D.C. 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 2/12
Thu 2/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport