$87 Cheap Flights from Trieste (TRS) to Sofia (SOF)

View $87 flight on Mon, Sep 1, 2025Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF)

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Cheap Flights from Trieste to Sofia (TRS-SOF)

Prices were available within the past 7 days and start at $87 for one-way flights and $201 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$201 Roundtrip, found 6 days ago
$201
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $201 found 6 days ago
ITA Airways
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$212 Roundtrip, found 6 days ago
$212
Roundtrip
found 6 days ago
Select ITA Airways flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $212 found 6 days ago
Lufthansa
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$219 Roundtrip, found 6 days ago
$219
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $219 found 6 days ago
ITA Airways
Tue, Sep 9 - Fri, Sep 12
TRS
Trieste
SOF
Sofia
$225 Roundtrip, found 6 days ago
$225
Roundtrip
found 6 days ago
Select ITA Airways flight, departing Tue, Sep 9 from Trieste to Sofia, returning Fri, Sep 12, priced at $225 found 6 days ago
Lufthansa
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$227 Roundtrip, found 6 days ago
$227
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $227 found 6 days ago
ITA Airways
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$234 Roundtrip, found 6 days ago
$234
Roundtrip
found 6 days ago
Select ITA Airways flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $234 found 6 days ago
Lufthansa
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$245 Roundtrip, found 6 days ago
$245
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $245 found 6 days ago
ITA Airways
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$263 Roundtrip, found 6 days ago
$263
Roundtrip
found 6 days ago
Select ITA Airways flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $263 found 6 days ago
ITA Airways
Mon, Sep 1 - Mon, Sep 8
TRS
Trieste
SOF
Sofia
$281 Roundtrip, found 6 days ago
$281
Roundtrip
found 6 days ago
Select ITA Airways flight, departing Mon, Sep 1 from Trieste to Sofia, returning Mon, Sep 8, priced at $281 found 6 days ago
Lufthansa
Tue, Sep 9 - Fri, Sep 12
TRS
Trieste
SOF
Sofia
$292 Roundtrip, found 6 days ago
$292
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Tue, Sep 9 from Trieste to Sofia, returning Fri, Sep 12, priced at $292 found 6 days ago
Flights from Trieste (TRS) to Sofia (SOF)
Origin airport
Friuli Venezia Giulia
Destination airport
Sofia
Roundtrip price
$200
Distance
535 mi

Trieste to Sofia Flights

The cheapest times to fly from Trieste to Sofia

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 Trieste to Sofia are during the month of September. You can find some of the cheapest flights from Trieste to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trieste to Sofia

Sunday is one of the best days to book for cheap flights from Trieste to Sofia: 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 Trieste to Sofia

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 Trieste to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $87 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 Trieste to Sofia 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 Trieste to Sofia 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.

 

Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF) cost?
Secure a cheap one-way flight from $87 or cheap return flight from $201 from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF)?
September is the least expensive month to fly from TRS to SOF. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest TRS to SOF flight.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF)?
Nonstop flights from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TRS to SOF?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the season, airline 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 Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF)?
To arrive at Sofia Airport (SOF) on schedule, choose a flight that leaves from Friuli Venezia Giulia Airport (TRS) before 3 PM. The likelihood 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 Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF) last-minute?
Last-minute bookings from TRS to SOF are typically more expensive. To lock in the lowest prices, start searching for flights as early as possible. That being said, if you can play around with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a TRS to SOF flight and hotel package?
Compared with arranging flights and hotels separately, booking a TRS to SOF flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Sofia Airport (SOF)?
It's generally possible to reschedule or cancel your TRS to SOF flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.