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.

$646 Cheap Flights from Trieste to Washington in 2026

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Find the cheapest flights from Trieste to Washington

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

2:10 pm - 1:45 pm

SEA

TRS

14h 35m

1 stop

$646Lufthansa

Fri, Apr 10 - Tue, Apr 14

2:40 pm - 12:20 pm

TRS

SEA

30h 40m

1 stop

8:00 am - 1:45 pm

SEA

TRS

20h 45m

2 stops

$725Lufthansa

Fri, Apr 10 - Tue, Apr 14

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

6:50 pm - 9:55 pm

SEA

TRS

18h 05m

2 stops

$730Lufthansa

Fri, May 8 - Fri, May 15

6:10 am - 4:59 pm

TRS

SEA

19h 49m

2 stops

6:50 pm - 9:55 pm

SEA

TRS

18h 05m

2 stops

$775Lufthansa

Fri, May 8 - Fri, May 15

6:35 am - 11:48 am

TRS

SEA

38h 13m

2 stops

8:55 am - 10:25 am

SEA

TRS

40h 30m

2 stops

$838United Airlines

Wed, Apr 22 - Sun, Apr 26

6:10 am - 7:20 pm

TRS

SEA

22h 10m

2 stops

10:20 am - 1:45 pm

SEA

TRS

18h 25m

2 stops

$915Multiple Airlines

Fri, Apr 10 - Tue, Apr 14

6:10 am - 12:20 pm

TRS

SEA

15h 10m

1 stop

2:10 pm - 9:55 pm

SEA

TRS

22h 45m

1 stop

$934Lufthansa

Fri, May 8 - Fri, May 15

6:35 am - 10:25 am

TRS

SEA

36h 50m

3 stops

8:00 am - 8:00 pm

SEA

TRS

27h 00m

3 stops

$1,132Multiple Airlines

Fri, Apr 10 - Tue, Apr 14

6:35 am - 8:57 pm

TRS

SEA

23h 22m

2 stops

7:08 am - 6:30 pm

SEA

TRS

26h 22m

2 stops

$1,321ITA Airways

Wed, Apr 29 - Sun, May 3

6:35 am - 7:45 pm

TRS

SEA

22h 10m

2 stops

7:08 am - 6:30 pm

SEA

TRS

26h 22m

2 stops

$1,323ITA Airways

Wed, Apr 29 - Sun, May 3

United Airlines flights from Trieste to State of Washington

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

United Airlines

Apr 22

TRS6:35 amTrieste Ronchi dei Legionari

38h 13m

2 stops

SEA11:48 amSeattle/Tacoma Intl

Apr 26

SEA8:55 amSeattle/Tacoma Intl

40h 30m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$838

United Airlines

Apr 29

TRS6:35 amTrieste Ronchi dei Legionari

46h 09m

3 stops

SEA7:44 pmSeattle/Tacoma Intl

May 3

SEA7:36 pmSeattle/Tacoma Intl

53h 49m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,330

United Airlines

Apr 29

TRS6:35 amTrieste Ronchi dei Legionari

46h 09m

3 stops

SEA7:44 pmSeattle/Tacoma Intl

May 3

SEA7:05 pmSeattle/Tacoma Intl

54h 20m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

$1,642

Lufthansa flights from Trieste to State of Washington

Our best Lufthansa deals on Trieste to State of Washington flight tickets

Lufthansa

Apr 10

TRS6:10 amTrieste Ronchi dei Legionari

15h 10m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

Apr 14

SEA2:10 pmSeattle/Tacoma Intl

14h 35m

1 stop

TRS1:45 pmTrieste Ronchi dei Legionari

$646

Lufthansa

Apr 10

TRS2:40 pmTrieste Ronchi dei Legionari

30h 40m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

Apr 14

SEA8:00 amSeattle/Tacoma Intl

20h 45m

2 stops

TRS1:45 pmTrieste Ronchi dei Legionari

$725

Lufthansa

May 8

TRS6:10 amTrieste Ronchi dei Legionari

15h 10m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

May 15

SEA6:50 pmSeattle/Tacoma Intl

18h 05m

2 stops

TRS9:55 pmTrieste Ronchi dei Legionari

$730

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 4/10

6:10 am-12:20 pm

1 stop15h 10m

Seattle/Tacoma Intl

Tue 4/14

2:10 pm-1:45 pm

1 stop14h 35m

$646

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 4/10

2:40 pm-12:20 pm

1 stop30h 40m

Seattle/Tacoma Intl

Tue 4/14

8:00 am-1:45 pm

2 stops20h 45m

$725

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 5/8

6:10 am-12:20 pm

1 stop15h 10m

Seattle/Tacoma Intl

Fri 5/15

6:50 pm-9:55 pm

2 stops18h 05m

$730

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 5/8

6:10 am-4:59 pm

2 stops19h 49m

Seattle/Tacoma Intl

Fri 5/15

6:50 pm-9:55 pm

2 stops18h 05m

$775

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Wed 4/22

6:35 am-11:48 am

2 stops38h 13m

Seattle/Tacoma Intl

Sun 4/26

8:55 am-10:25 am

2 stops40h 30m

$838

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 4/10

6:10 am-7:20 pm

2 stops22h 10m

Seattle/Tacoma Intl

Tue 4/14

10:20 am-1:45 pm

2 stops18h 25m

$915

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 5/8

6:10 am-12:20 pm

1 stop15h 10m

Seattle/Tacoma Intl

Fri 5/15

2:10 pm-9:55 pm

1 stop22h 45m

$934

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Fri 4/10

6:35 am-10:25 am

3 stops36h 50m

Seattle/Tacoma Intl

Tue 4/14

8:00 am-8:00 pm

3 stops27h 00m

$1,132

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Wed 4/29

6:35 am-8:57 pm

2 stops23h 22m

Seattle/Tacoma Intl

Sun 5/3

7:08 am-6:30 pm

2 stops26h 22m

$1,321

TriesteSeattle

TRS - SEA

TRSSEA

Trieste Ronchi dei Legionari

Wed 4/29

6:35 am-7:45 pm

2 stops22h 10m

Seattle/Tacoma Intl

Sun 5/3

7:08 am-6:30 pm

2 stops26h 22m

$1,323

Flights are sorted by cheapest round-trip flights first.

Sorted 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, United Airlines and Delta 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 34% 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	23h 22m
Direct flights	None

The fastest flight from Trieste to State of Washington takes 23h 22m

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

Search flight deals

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.