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Trieste

$681+ Cheap flights from Seattle (SEA) to Trieste (TRS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TRS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Seattle to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$681
(Gotogate)
From Seattle/Tacoma Intl to Trieste Ronchi dei Legionari
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Find flight deals from Seattle to Trieste

Cheapest flights from Seattle to Trieste
Explore the most affordable flight options available from Seattle to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2610:05 amSEA - TRS
2 stops19h 55mMultiple Airlines
Sun 11/23:00 pmTRS - SEA
1 stop30h 10mMultiple Airlines
Deal found 9/11$681
This Lufthansa deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amSEA - TRS
2 stops30h 40mLufthansa
Sun 11/233:00 pmTRS - SEA
1 stop30h 10mLufthansa
Deal found 9/10$696
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:20 pmSEA - TRS
3 stops24h 35mMultiple Airlines
Sat 11/16:10 pmTRS - SEA
2 stops28h 10mMultiple Airlines
Deal found 9/10$856
This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:20 pmSEA - TRS
1 stop15h 45mLufthansa
Sat 11/13:15 pmTRS - SEA
2 stops31h 05mLufthansa
Deal found 9/10$1,119

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Trieste 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Seattle to Trieste that are best for you.

Fly from

Seattle

Fly to

Trieste

Route

Depart

Return

Price

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 10/26

10:05 am-2:00 pm

2 stops19h 55m

Trieste Ronchi dei Legionari

Sun 11/2

3:00 pm-12:10 pm

1 stop30h 10m

$681

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Wed 11/19

7:00 am-10:40 pm

2 stops30h 40m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-12:10 pm

1 stop30h 10m

$696

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sat 10/25

2:20 pm-11:55 pm

3 stops24h 35m

Trieste Ronchi dei Legionari

Sat 11/1

6:10 pm-2:20 pm

2 stops28h 10m

$856

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sat 10/25

2:20 pm-3:05 pm

1 stop15h 45m

Trieste Ronchi dei Legionari

Sat 11/1

3:15 pm-2:20 pm

2 stops31h 05m

$1,119

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Seattle to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Trieste?

    Airlines like Lufthansa fly from Seattle to Trieste in about 30h 40m. The time it takes to get you to your destination can typically vary by up to . The distance between Seattle and Trieste is about 5456 mi.

  • Can I find deals for flights from Seattle to Trieste that include hotel bookings?

    Yes. In addition to deals on Seattle to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Trieste.

  • Can I find deals for business class flights from Seattle to Trieste?

    Yes. Cheapflights offers flight deals from Seattle to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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