$570 Cheap Flights from Trieste (TRS) to Seattle (SEA)

View $570 flight on Thu, Aug 28, 2025Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Trieste to Seattle (TRS-SEA)

Prices were available within the past 7 days and start at $570 for one-way flights and $793 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

ITA Airways
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$793 Roundtrip, found 16 hours ago
$793
Roundtrip
found 16 hours ago
Select ITA Airways flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $793 found 16 hours ago
ITA Airways
Tue, Nov 4 - Tue, Nov 11
TRS
Trieste
SEA
Seattle
$804 Roundtrip, found 4 days ago
$804
Roundtrip
found 4 days ago
Select ITA Airways flight, departing Tue, Nov 4 from Trieste to Seattle, returning Tue, Nov 11, priced at $804 found 4 days ago
Air Dolomiti
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$820 Roundtrip, found 16 hours ago
$820
Roundtrip
found 16 hours ago
Select Air Dolomiti flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $820 found 16 hours ago
Air Dolomiti
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$830 Roundtrip, found 16 hours ago
$830
Roundtrip
found 16 hours ago
Select Air Dolomiti flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $830 found 16 hours ago
Air Dolomiti
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$840 Roundtrip, found 16 hours ago
$840
Roundtrip
found 16 hours ago
Select Air Dolomiti flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $840 found 16 hours ago
Lufthansa
Tue, Nov 4 - Tue, Nov 11
TRS
Trieste
SEA
Seattle
$844 Roundtrip, found 4 days ago
$844
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Nov 4 from Trieste to Seattle, returning Tue, Nov 11, priced at $844 found 4 days ago
Air Dolomiti
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$860 Roundtrip, found 16 hours ago
$860
Roundtrip
found 16 hours ago
Select Air Dolomiti flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $860 found 16 hours ago
Lufthansa
Mon, Nov 3 - Mon, Nov 10
TRS
Trieste
SEA
Seattle
$863 Roundtrip, found 4 days ago
$863
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Mon, Nov 3 from Trieste to Seattle, returning Mon, Nov 10, priced at $863 found 4 days ago
Air France
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$1,046 Roundtrip, found 16 hours ago
$1,046
Roundtrip
found 16 hours ago
Select Air France flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $1,046 found 16 hours ago
KLM
Wed, Sep 3 - Wed, Sep 17
TRS
Trieste
SEA
Seattle
$1,052 Roundtrip, found 16 hours ago
$1,052
Roundtrip
found 16 hours ago
Select KLM flight, departing Wed, Sep 3 from Trieste to Seattle, returning Wed, Sep 17, priced at $1,052 found 16 hours ago
Flights from Trieste (TRS) to Seattle (SEA)
Origin airport
Friuli Venezia Giulia
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air France, KLM, Lufthansa
Roundtrip price
$792
Distance
5459 mi

Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA) cost?
Discover the latest flight deals from TRS to SEA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TRS to SEA?
The cheapest flights from TRS to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TRS to SEA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TRS to SEA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA)?
Direct flights from Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TRS to SEA?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid possible delays on the Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your flight from TRS to SEA right before your journey is generally more expensive. But if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a TRS to SEA flight and hotel package?
Compared with arranging hotels and flights separately, booking a TRS to SEA flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of travel planning. Simply pick your flights and choose from our wide range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Seattle - Tacoma Intl. Airport (SEA)?
Usually, it's possible to reschedule or cancel your TRS to SEA flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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