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?

Four cabin classes are available on flights from Seattle to Trieste: • Economy Class • Premium Economy Class • Business Class • First Class Prices vary by airline.

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

Connecting flights from Seattle to Trieste most commonly pass through: • Frankfurt am Main (FRA) - 78% of one-stop connections • Rome Fiumicino (FCO) - 22% of one-stop connections

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

Yes. Flexible dates can save you up to 52% on flights from Seattle to Trieste. 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 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 much time can I save by choosing a different layover airport from Seattle to Trieste?

Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 14h 42m, compared with 15h 46m via Rome Fiumicino (FCO).

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 $10 for economy cars. Top options include: • DRIVALIA • NOLEGGIARE • SICILY BY CAR • Europcar • Budget

How much is a round-trip flight from Seattle to Trieste?

Round-trip flights from Seattle to Trieste typically range from $1,040 to $1,462. The lowest price found in the past 5 days was $863, on KLM.

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

KLM ($863) and ITA Airways ($1,211) are the cheapest airlines to fly round-trip from Seattle to Trieste according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Seattle to Trieste?

Frankfurt am Main (FRA) is the most popular layover for the Seattle to Trieste route. 78% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via FRA.

What is the cheapest layover airport when flying from Seattle to Trieste?

Flights via Frankfurt am Main (FRA) offer the most affordable fares, with an average round-trip price of $1,220. Based on KAYAK data over the past 3 months.

When flying from Seattle to Trieste which airport offers the shortest layover?

Frankfurt am Main (FRA) had the shortest average connection time for Seattle to Trieste layovers at 9h 04m over the past 3 months.

$863 CHEAP FLIGHTS from Seattle to Trieste (SEA - TRS)

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Cheapest round-trip

$863

Typical prices: $1,040-$1,462

KLM

Sun 12/2Sun 12/9

SEA - TRS • 2 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.

Insights

Top layover airports

Frankfurt am Main (FRA)

Cheapest • Avg $1,220 (round-trip)

Rome Fiumicino (FCO)

Shortest trip • 15h 46m (one-way)

Insights

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Cheap Flights from Seattle to Trieste (SEA-TRS)

Cheap flights from Seattle to Trieste with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Wed, Dec 2 - Wed, Dec 9

6:00 am - 2:30 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

23h 30m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino

6:35 am - 11:09 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

25h 34m2 stops Rome Fiumicino New York John F Kennedy Intl

$863KLM

Thu, Dec 3 - Thu, Dec 10

8:25 am - 2:30 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

21h 05m2 stops Minneapolis St Paul Rome Fiumicino

6:35 am - 10:04 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

24h 29m2 stops Rome Fiumicino Detroit Metropolitan Wayne County

$913KLM

Wed, Dec 2 - Wed, Dec 9

2:35 pm - 10:55 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

23h 20m3 stops Reykjavik Keflavik Intl London Heathrow Rome Fiumicino

7:15 pm - 8:04 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

33h 49m3 stops Rome Fiumicino Lisbon Humberto Delgado Los Angeles

$1,133Multiple Airlines

Thu, Dec 3 - Thu, Dec 10

7:45 am - 10:55 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

30h 10m3 stops Toronto Pearson Intl Frankfurt am Main Rome Fiumicino

3:15 pm - 1:00 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

30h 45m3 stops Rome Fiumicino Frankfurt am Main Munich Franz Josef Strauss

$1,157Multiple Airlines

Wed, Dec 2 - Wed, Dec 9

2:35 pm - 10:55 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

23h 20m3 stops Reykjavik Keflavik Intl London Heathrow Rome Fiumicino

3:45 pm - 5:10 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

34h 25m2 stops Naples Istanbul

$1,183Multiple Airlines

Sat, Dec 5 - Sat, Jan 9

9:01 am - 2:30 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

20h 29m2 stops San Francisco Rome Fiumicino

3:15 pm - 6:32 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

36h 17m2 stops Rome Fiumicino San Francisco

$1,211ITA Airways

Sat, Dec 12 - Sat, Jan 9

11:25 pm - 2:30 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

30h 05m2 stops Newark Rome Fiumicino

3:15 pm - 12:00 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

29h 45m2 stops Rome Fiumicino Frankfurt am Main

$1,314Multiple Airlines

Thu, Dec 3 - Thu, Dec 10

2:35 pm - 10:55 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

23h 20m3 stops Reykjavik Keflavik Intl London Heathrow Rome Fiumicino

7:15 pm - 5:10 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

30h 55m2 stops Rome Fiumicino Istanbul

$1,327Multiple Airlines

Sat, Dec 5 - Sat, Jan 9

2:35 pm - 6:30 pmSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

18h 55m2 stops Reykjavik Keflavik Intl Rome Fiumicino

6:35 am - 9:59 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

24h 24m3 stops Rome Fiumicino Reykjavik Keflavik Intl Denver Intl

$1,458Icelandair

Sun, Dec 6 - Thu, Dec 10

7:00 am - 10:25 amSEA Seattle/Tacoma Intl-TRS Trieste Ronchi dei Legionari

18h 25m2 stops Chicago O'Hare Intl Rome Fiumicino

6:35 am - 1:22 pmTRS Trieste Ronchi dei Legionari-SEA Seattle/Tacoma Intl

39h 47m3 stops Rome Fiumicino Toronto Pearson Intl Houston George Bush Intcntl

$1,493United Airlines

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 with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Seattle to Trieste? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Trieste departing in december.

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Cheapest flight	$863

Round-trip 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

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Seattle to Trieste?
Four cabin classes are available on flights from Seattle to Trieste:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.
How long is a flight from Seattle to Trieste?
A nonstop flight from Seattle to Trieste takes 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.
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 $10 for economy cars. Top options include:

• DRIVALIA
• NOLEGGIARE
• SICILY BY CAR
• Europcar
• Budget
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).
Which airports do connecting flights from Seattle to Trieste pass through?
Connecting flights from Seattle to Trieste most commonly pass through:

• Frankfurt am Main (FRA) - 78% of one-stop connections
• Rome Fiumicino (FCO) - 22% of one-stop connections
Can I save money by using flexible dates for flights from Seattle to Trieste?
Yes. Flexible dates can save you up to 52% on flights from Seattle to Trieste. 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 much time can I save by choosing a different layover airport from Seattle to Trieste?
Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 14h 42m, compared with 15h 46m via Rome Fiumicino (FCO).
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.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $714, about $764 less than Monday fares (52% savings) based on the last 12 months.

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SEA - TRS

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Everything you should know

Cheap Flights from Seattle to Trieste (SEA-TRS)

Cheap flights from Seattle to Trieste with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Price, demand and travel trends for Seattle to Trieste flights

How much is a round-trip flight from Seattle to Trieste?

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

What’s the most popular layover airport when flying from Seattle to Trieste?

What is the cheapest layover airport when flying from Seattle to Trieste?

When flying from Seattle to Trieste which airport offers the shortest layover?

Key details for Seattle to Trieste flights

Cheapest flight

When to book flights from Seattle to Trieste

Your Seattle to Trieste flight questions, answered

Your guide to booking Seattle to Trieste flights

More options for your flight from Seattle to Trieste

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

Information on your arrival and departure airports

Cabin class types available on flights from Seattle to Trieste

Find direct flights to and from Seattle and Trieste

Flights from domestic origins to Trieste

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