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Trieste

$432+ Cheap flights from Seattle (SEA) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TRS
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$907
(Delta)

One-way from

$432
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Trieste Ronchi dei Legionari flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Trieste Ronchi dei Legionari flights.
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From Seattle/Tacoma Intl to Trieste Ronchi dei Legionari
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One-way flight 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 March 31, 2025.

This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2310:00 pmSEA - TRS
2 stops27h 25mDelta
Fri 9/56:35 amTRS - SEA
2 stops24h 35mDelta
Deal found 3/30$907
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/242:20 pmSEA - TRS
1 stop14h 45mLufthansa
Fri 9/56:30 amTRS - SEA
2 stops16h 46mLufthansa
Deal found 3/30$913
This Orbitz deal was found by Cheapflights users on 3/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/235:15 pmSEA - TRS
1 stop20h 10mMultiple Airlines
Sat 9/66:30 amTRS - SEA
2 stops21h 39mMultiple Airlines
Deal found 3/30$960
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/233:45 pmSEA - TRS
2 stops17h 45mIcelandair
Sun 9/711:15 amTRS - SEA
2 stops18h 25mIcelandair
Deal found 3/30$1,191

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 March 31, 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

Sat 8/23

10:00 pm-10:25 am

2 stops27h 25m

Trieste Ronchi dei Legionari

Fri 9/5

6:35 am-10:10 pm

2 stops24h 35m

$907

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 8/24

2:20 pm-2:05 pm

1 stop14h 45m

Trieste Ronchi dei Legionari

Fri 9/5

6:30 am-2:16 pm

2 stops16h 46m

$913

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sat 8/23

12:10 pm-2:05 pm

2 stops40h 55m

Trieste Ronchi dei Legionari

Sat 9/6

2:45 pm-7:31 pm

2 stops37h 46m

$960

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sat 8/23

3:45 pm-6:30 pm

2 stops17h 45m

Trieste Ronchi dei Legionari

Sun 9/7

11:15 am-8:40 pm

2 stops18h 25m

$1,191

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 5/11

3:45 pm-8:55 pm

3 stops20h 10m

$432

SeattleTrieste

SEA - TRS

SEATRS

Seattle/Tacoma Intl

Sun 5/11

2:15 pm-2:05 pm

1 stop14h 50m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Compare providers for flights from Seattle to Trieste

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Trieste in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Trieste flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Trieste flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Trieste flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Trieste

Rainfall in Trieste by month

Plan your trip to Trieste by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

Temperature in Trieste by month

Plan your trip to Trieste by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trieste, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated March 31, 2025.
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Icelandair
7.0
Good
476 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Lufthansa
6.7
Okay
6,961 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines flying from Seattle to Trieste round-trip?

    According to our current data, Delta ($907), Lufthansa ($913), and Icelandair ($1,191) offers the cheapest pricing from Seattle to Trieste.

  • 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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Top airline flying from Seattle to Trieste

Discover the top airline that operate flights from Seattle to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$924Average$1,227FlexibilityNo cancel feeOn-time76%
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