SEA - TRS

$282 Find Cheap Flights from Seattle to Trieste - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$965
Typical prices: $932-$1,462
Multiple Airlines
Mon 10/15Mon 10/22
SEA - TRS • 2 stops
Cheapest one-way
$282
Typical prices: $618-$848
Multiple Airlines
Thu 9/27
SEA - TRS • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Seattle and Trieste. You'll need to take a connecting flight to reach the destination.
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Flight Deals

Cheap Flights from Seattle to Trieste (SEA-TRS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Trieste

Thu, Oct 15 - Thu, Oct 22
Multiple Airlines Logo
6:05 pm - 8:15 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
17h 10m2 stops Frankfurt am Main Barcelona-El Prat
Multiple Airlines Logo
3:15 pm - 4:00 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
33h 45m3 stops Rome Fiumicino Barcelona-El Prat Frankfurt am Main
$965Multiple Airlines
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
10:30 am - 4:35 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
21h 05m2 stops Calgary Barcelona-El Prat
Multiple Airlines Logo
6:55 am - 8:40 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
22h 45m2 stops Stockholm Arlanda Reykjavik Keflavik Intl
$1,025Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
Multiple Airlines Logo
9:40 pm - 11:45 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
17h 05m1 stop London Heathrow
Multiple Airlines Logo
6:00 am - 6:05 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
20h 05m1 stop London Stansted
$1,026Multiple Airlines
Thu, Oct 15 - Thu, Oct 22
Lufthansa Logo
2:10 pm - 10:15 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
23h 05m1 stop Frankfurt am Main
Lufthansa Logo
6:15 am - 6:32 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
21h 17m2 stops Frankfurt am Main Vancouver Intl
$1,035Lufthansa
Thu, Oct 15 - Thu, Oct 22
Lufthansa Logo
2:10 pm - 1:55 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
14h 45m1 stop Frankfurt am Main
Lufthansa Logo
6:15 am - 12:20 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
15h 05m1 stop Frankfurt am Main
$1,040Lufthansa
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
5:50 am - 4:35 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
25h 45m3 stops Vancouver Intl Calgary Barcelona-El Prat
Multiple Airlines Logo
6:55 am - 8:40 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
22h 45m2 stops Stockholm Arlanda Reykjavik Keflavik Intl
$1,042Multiple Airlines
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
6:00 pm - 10:15 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
19h 15m1 stop Frankfurt am Main
Multiple Airlines Logo
2:45 pm - 2:55 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
33h 10m1 stop Frankfurt am Main
$1,074Multiple Airlines
Fri, Oct 16 - Sun, Oct 25
Multiple Airlines Logo
3:40 pm - 8:25 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
19h 45m2 stops Reykjavik Keflavik Intl Brussels Bruxelles-National
Multiple Airlines Logo
6:20 pm - 4:55 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
30h 35m2 stops Milan Linate Frankfurt am Main
$1,080Multiple Airlines
Sat, Oct 17 - Sat, Oct 24
Lufthansa Logo
1:56 pm - 10:15 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
23h 19m2 stops Chicago O'Hare Intl Frankfurt am Main
Lufthansa Logo
6:15 am - 12:20 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
15h 05m1 stop Frankfurt am Main
$1,101Lufthansa
Fri, Oct 16 - Sun, Oct 25
Multiple Airlines Logo
9:40 pm - 11:45 pmSEA  Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari
17h 05m1 stop London Heathrow
Multiple Airlines Logo
2:30 pm - 6:05 pmTRS  Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl
35h 35m1 stop London Stansted
$1,109Multiple Airlines
Booking Insights

Price, demand and travel trends for Seattle to Trieste flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Trieste with more confidence.

What is the cheapest airline to fly from Seattle to Trieste?

Lufthansa ($1,035) offered the cheapest round-trip ticket from Seattle to Trieste in the last 5 days.

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Key details for Seattle to Trieste flights

Cheapest flight

$282
Flight from Seattle to Trieste

When to book flights from Seattle to Trieste

Are your dates flexible? Find out the best times to travel from Seattle to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Trieste flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Trieste?

    Flights from Seattle to Trieste usually depart from Seattle/Tacoma Intl (SEA) and arrive at Trieste Ronchi dei Legionari (TRS).

  • What cabin classes can I book on flights from Seattle to Trieste?

    Only Premium Economy Class is available on flights from Seattle to Trieste.

  • Which airports do connecting flights from Seattle to Trieste pass through?

    Most connecting flights from Seattle to Trieste pass through Frankfurt am Main (FRA), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Seattle to Trieste?

    Yes. Being flexible with your travel dates can save you up to 52% on the Seattle to Trieste route. Wednesday is the cheapest departure day at $714 round-trip on average, while Monday is the most expensive at $1,478, a difference of $764. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Seattle to Trieste?

    A nonstop flight from Seattle to Trieste takes 0h 00m, covering 5,456 miles.

  • Do I need a passport to fly from Seattle to Trieste?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Seattle to Trieste looking right now?

    One-way fares from Seattle to Trieste are currently higher than usual. Average one-way flight prices are about $1,941, which is 168% above the typical average for this route.

  • What is the time difference between Seattle and Trieste?

    Trieste is 9 hours ahead of Seattle (Central European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Trieste Ronchi dei Legionari Airport (TRS)?

    Trieste Ronchi dei Legionari Airport (TRS) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:
    · DRIVALIA
    · NOLEGGIARE
    · SICILY BY CAR
    · Europcar
    · Budget

Your guide to booking Seattle to Trieste flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $714 - about $764 less than Monday (52% savings) based on the last 12 months.

More options for your flight from Seattle to Trieste

Complete your trip to Trieste with a hotel stay or car rental

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