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

Prices for flights from Trieste Ronchi dei Legionari Airport to Washington refresh daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$496 Cheap Flights from Trieste to Washington in 2026

Find the cheapest flights from Trieste to Washington

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:35 am - 1:00 pm

TRS

SEA

38h 25m

3 stops

3:15 pm - 10:55 pm

SEA

TRS

22h 40m

3 stops

$1,037Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

6:35 am - 11:49 pm

TRS

SEA

25h 14m

2 stops

7:20 am - 2:30 pm

SEA

TRS

22h 10m

2 stops

$1,067Air France

Sun, Nov 1 - Sun, Nov 8

6:10 am - 9:07 pm

TRS

SEA

23h 57m

2 stops

5:45 am - 10:15 pm

SEA

TRS

31h 30m

2 stops

$1,119Multiple Airlines

Fri, Jul 10 - Tue, Jul 14

6:35 am - 3:51 pm

TRS

SEA

42h 16m

2 stops

5:21 pm - 10:25 am

SEA

TRS

56h 04m

2 stops

$1,179United Airlines

Fri, Oct 2 - Sun, Oct 4

6:35 am - 3:51 pm

TRS

SEA

42h 16m

2 stops

11:14 pm - 10:25 am

SEA

TRS

26h 11m

2 stops

$1,180United Airlines

Fri, Oct 2 - Sun, Oct 4

6:35 am - 3:51 pm

TRS

SEA

42h 16m

2 stops

5:21 pm - 10:25 am

SEA

TRS

56h 04m

2 stops

$1,182United Airlines

Fri, Oct 2 - Sun, Oct 4

6:10 am - 6:32 pm

TRS

SEA

21h 22m

2 stops

2:10 pm - 1:45 pm

SEA

TRS

14h 35m

1 stop

$1,205Multiple Airlines

Fri, Jul 10 - Tue, Jul 14

6:35 am - 3:51 pm

TRS

SEA

42h 16m

2 stops

8:30 am - 10:25 am

SEA

TRS

40h 55m

3 stops

$1,218United Airlines

Fri, Oct 2 - Sun, Oct 4

6:35 am - 3:51 pm

TRS

SEA

42h 16m

2 stops

8:30 am - 10:25 am

SEA

TRS

40h 55m

3 stops

$1,220United Airlines

Fri, Oct 2 - Sun, Oct 4

6:35 am - 3:51 pm

TRS

SEA

42h 16m

2 stops

8:30 am - 10:25 am

SEA

TRS

40h 55m

3 stops

$1,222United Airlines

Fri, Oct 2 - Sun, Oct 4

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United Airlines flights from Trieste to State of Washington

Our best United Airlines deals on Trieste to State of Washington flight tickets

United Airlines

Oct 2

TRS6:35 amTrieste Ronchi dei Legionari

42h 16m

2 stops

SEA3:51 pmSeattle/Tacoma Intl

Oct 4

SEA5:21 pmSeattle/Tacoma Intl

56h 04m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,179

United Airlines

Oct 2

TRS6:35 amTrieste Ronchi dei Legionari

42h 16m

2 stops

SEA3:51 pmSeattle/Tacoma Intl

Oct 4

SEA11:14 pmSeattle/Tacoma Intl

26h 11m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,180

United Airlines

Oct 2

TRS6:35 amTrieste Ronchi dei Legionari

42h 16m

2 stops

SEA3:51 pmSeattle/Tacoma Intl

Oct 4

SEA5:21 pmSeattle/Tacoma Intl

56h 04m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,182

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Sun 11/1

6:35 am-1:00 pm

3 stops38h 25m

Seattle/Tacoma Intl

Sun 11/8

3:15 pm-10:55 pm

3 stops22h 40m

$1,037

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Sun 11/1

6:35 am-11:49 pm

2 stops25h 14m

Seattle/Tacoma Intl

Sun 11/8

7:20 am-2:30 pm

2 stops22h 10m

$1,067

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 7/10

6:10 am-9:07 pm

2 stops23h 57m

Seattle/Tacoma Intl

Tue 7/14

5:45 am-10:15 pm

2 stops31h 30m

$1,119

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 10/2

6:35 am-3:51 pm

2 stops42h 16m

Seattle/Tacoma Intl

Sun 10/4

5:21 pm-10:25 am

2 stops56h 04m

$1,179

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 10/2

6:35 am-3:51 pm

2 stops42h 16m

Seattle/Tacoma Intl

Sun 10/4

11:14 pm-10:25 am

2 stops26h 11m

$1,180

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 10/2

6:35 am-3:51 pm

2 stops42h 16m

Seattle/Tacoma Intl

Sun 10/4

5:21 pm-10:25 am

2 stops56h 04m

$1,182

Quickest round-trip

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 7/10

6:10 am-6:32 pm

2 stops21h 22m

Seattle/Tacoma Intl

Tue 7/14

2:10 pm-1:45 pm

1 stop14h 35m

$1,205

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 10/2

6:35 am-3:51 pm

2 stops42h 16m

Seattle/Tacoma Intl

Sun 10/4

8:30 am-10:25 am

3 stops40h 55m

$1,218

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 10/2

6:35 am-3:51 pm

2 stops42h 16m

Seattle/Tacoma Intl

Sun 10/4

8:30 am-10:25 am

3 stops40h 55m

$1,220

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 10/2

6:35 am-3:51 pm

2 stops42h 16m

Seattle/Tacoma Intl

Sun 10/4

8:30 am-10:25 am

3 stops40h 55m

$1,222

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Trieste to State of Washington

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 airlines fly to State of Washington?

British Airways, Condor and United Airlines are the top three most popular airlines that fly to State of Washington from Trieste according to our data. British Airways is the first choice among our users, with 33% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 3 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

Cheap Trieste to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trieste to State of Washington

Fastest flight time	38h 25m
Direct flights	None

The fastest flight from Trieste to State of Washington takes 38h 25m

There are no direct flights from Trieste to State of Washington. There are no popular flight routes from Trieste to State of Washington.

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Frequently asked questions about flying from Trieste to Washington

When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to Washington?
Prices for flights from Trieste Ronchi dei Legionari Airport to Washington refresh daily.
How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Trieste to Washington?

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 from Trieste.

Can I find flights from Trieste to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Trieste to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Trieste to Washington?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Trieste to Washington.

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

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