$491 Cheap Flights from Seattle (SEA) to Trieste (TRS)

View $491 flight on Mon, Mar 2, 2026Opens in a new window

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

Cheap Flights from Seattle to Trieste (SEA-TRS)

Prices were available within the past 7 days and start at $491 for one-way flights and $564 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Sun, Dec 7 - Wed, Dec 24
SEA
Seattle
TRS
Trieste
$564 Roundtrip, found 5 days ago
$564
Roundtrip
found 5 days ago
Select KLM flight, departing Sun, Dec 7 from Seattle to Trieste, returning Wed, Dec 24, priced at $564 found 5 days ago
Lufthansa
Thu, Nov 27 - Thu, Dec 4
SEA
Seattle
TRS
Trieste
$587 Roundtrip, found 2 days ago
$587
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Nov 27 from Seattle to Trieste, returning Thu, Dec 4, priced at $587 found 2 days ago
United
Mon, Jan 12 - Sat, Jan 24
SEA
Seattle
TRS
Trieste
$593 Roundtrip, found 4 days ago
$593
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jan 12 from Seattle to Trieste, returning Sat, Jan 24, priced at $593 found 4 days ago
Lufthansa
Thu, Nov 27 - Thu, Dec 4
SEA
Seattle
TRS
Trieste
$593 Roundtrip, found 2 days ago
$593
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Nov 27 from Seattle to Trieste, returning Thu, Dec 4, priced at $593 found 2 days ago
United
Tue, Dec 30 - Tue, Jan 13
SEA
Seattle
TRS
Trieste
$597 Roundtrip, found 5 days ago
$597
Roundtrip
found 5 days ago
Select United flight, departing Tue, Dec 30 from Seattle to Trieste, returning Tue, Jan 13, priced at $597 found 5 days ago
United
Tue, Nov 25 - Mon, Dec 8
SEA
Seattle
TRS
Trieste
$597 Roundtrip, found 5 days ago
$597
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 25 from Seattle to Trieste, returning Mon, Dec 8, priced at $597 found 5 days ago
United
Mon, Jan 12 - Tue, Jan 27
SEA
Seattle
TRS
Trieste
$602 Roundtrip, found 4 days ago
$602
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jan 12 from Seattle to Trieste, returning Tue, Jan 27, priced at $602 found 4 days ago
Lufthansa
Wed, Nov 26 - Fri, Dec 12
SEA
Seattle
TRS
Trieste
$606 Roundtrip, found 5 days ago
$606
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Nov 26 from Seattle to Trieste, returning Fri, Dec 12, priced at $606 found 5 days ago
Air Canada
Thu, Nov 27 - Thu, Dec 4
SEA
Seattle
TRS
Trieste
$668 Roundtrip, found 2 days ago
$668
Roundtrip
found 2 days ago
Select Air Canada flight, departing Thu, Nov 27 from Seattle to Trieste, returning Thu, Dec 4, priced at $668 found 2 days ago
Icelandair
Thu, Jan 1 - Mon, Jan 12
SEA
Seattle
TRS
Trieste
$848 Roundtrip, found 5 days ago
$848
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Jan 1 from Seattle to Trieste, returning Mon, Jan 12, priced at $848 found 5 days ago

Alternative airports near Trieste

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Friuli Venezia Giulia TRS. Cheapest and Closest option available. Average driving time to city center is 33 minutes. Flights from $614
TRS
Friuli Venezia Giulia
CheapestClosest
Average driving time to city center33 min
Flights from $614

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS) cost?
Secure a cheap one-way flight from $491 or cheap return flight from $564 from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS)?
December is the least expensive month to fly from SEA to TRS. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SEA to TRS flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS)?
There are no daily nonstop flights departing from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from SEA to TRS?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS)?
To reach Friuli Venezia Giulia Airport (TRS) without delays, select a flight that leaves from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS) last-minute?
Holding off until right before your break to book your flight from SEA to TRS generally means paying more. While you might find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of snagging a bargain.
Is it cheaper to book a SEA to TRS flight and hotel package?
Securing a SEA to TRS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Friuli Venezia Giulia Airport (TRS)?
Generally, it's possible to cancel or reschedule your SEA to TRS flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Friuli Venezia Giulia
Airlines serving
Icelandair, KLM, Lufthansa, Turkish Airlines
Roundtrip price
$563
Distance
5459 mi

Book with confidence

Seattle to Trieste Flights

The cheapest times to fly from Seattle to Trieste

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Trieste are during the month of December. You can find some of the cheapest flights from Seattle to Trieste with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Trieste

Sunday is one of the best days to book for cheap flights from Seattle to Trieste: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Trieste

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Trieste in 2025. You can also book with separate airlines for your outbound and return journeys, from $491 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Trieste flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Trieste airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Trieste Flights

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*Available to One Key members.