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Flights from Trieste to Sofia

Find the cheapest flight options from Trieste to Sofia over the next three months. Book one-way tickets from US$113 and round-trip tickets from US$178.

      • TRS 06:35
        4h 30m
        1 stop
        SOF 12:05
        Trieste - Sofia | Wed, Apr 1 | ITA Airways
        SOF 18:00
        5h 55m
        1 stop
        TRS 22:55
        Sofia - Trieste | Sun, Apr 5 | ITA Airways
        US$178 US$228
        22% off
        22% off
        US$228 US$178
      • TRS 06:35
        4h 30m
        1 stop
        SOF 12:05
        Trieste - Sofia | Mon, Apr 6 | ITA Airways
        SOF 18:00
        5h 55m
        1 stop
        TRS 22:55
        Sofia - Trieste | Fri, Apr 10 | ITA Airways
        US$181 US$228
        21% off
        21% off
        US$228 US$181
      • TRS 06:10
        6h 10m
        1 stop
        SOF 13:20
        Trieste - Sofia | Fri, Apr 24 | Lufthansa
        SOF 06:10
        8h 45m
        1 stop
        TRS 13:55
        Sofia - Trieste | Tue, Apr 28 | Lufthansa
        US$188 US$228
        18% off
        18% off
        US$228 US$188
      • TRS 19:15
        20h 55m
        1 stop
        SOF 17:10
        Trieste - Sofia | Thu, Apr 2 | ITA Airways
        SOF 18:00
        5h 55m
        1 stop
        TRS 22:55
        Sofia - Trieste | Sun, Apr 5 | ITA Airways
        US$188
        18% off
        US$228 US$188
      • TRS 06:15
        6h
        1 stop
        SOF 13:15
        Trieste - Sofia | Sat, Apr 11 | Lufthansa
        SOF 13:50
        9h 25m
        1 stop
        TRS 22:15
        Sofia - Trieste | Wed, Apr 15 | Lufthansa
        US$188
        18% off
        US$228 US$188
      • TRS 06:20
        6h 5m
        1 stop
        SOF 13:25
        Trieste - Sofia | Tue, Apr 28 | Lufthansa
        SOF 11:50
        11h 25m
        1 stop
        TRS 22:15
        Sofia - Trieste | Wed, May 6 | Lufthansa
        US$190
        17% off
        US$228 US$190
      • TRS 06:15
        6h 35m
        1 stop
        SOF 13:50
        Trieste - Sofia | Thu, Mar 19 | Lufthansa
        SOF 14:20
        9h 5m
        1 stop
        TRS 22:25
        Sofia - Trieste | Mon, Mar 23 | Lufthansa
        US$193
        15% off
        US$228 US$193
      • TRS 14:40
        7h 5m
        1 stop
        SOF 22:45
        Trieste - Sofia | Wed, Mar 25 | Lufthansa
        SOF 13:50
        9h 25m
        1 stop
        TRS 22:15
        Sofia - Trieste | Wed, Apr 1 | Lufthansa
        US$195
        14% off
        US$228 US$195
      • TRS 06:25
        6h 10m
        1 stop
        SOF 13:35
        Trieste - Sofia | Sat, Mar 21 | Lufthansa
        SOF 06:00
        9h
        1 stop
        TRS 14:00
        Sofia - Trieste | Tue, Mar 24 | Lufthansa
        US$196
        14% off
        US$228 US$196
      • TRS 06:10
        11h
        1 stop
        SOF 18:10
        Trieste - Sofia | Mon, May 4 | Lufthansa
        SOF 13:55
        9h
        1 stop
        TRS 21:55
        Sofia - Trieste | Sat, May 9 | Lufthansa
        US$198
        13% off
        US$228 US$198
      • TRS 13:00
        17h 25m
        1 stop
        SOF Invalid Date
        Trieste - Sofia | Tue, Mar 17 | Normal Airline
        SOF 15:00
        6h
        Direct
        TRS 16:00
        Sofia - Trieste | Thu, Mar 19 | Normal Airline
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      • TRS 15:15
        24h 55m
        1 stop
        SOF 17:10
        Trieste - Sofia | Thu, Apr 2 | ITA Airways
        US$113 US$353
        68% off
        68% off
        US$353 US$113
      • TRS 06:35
        4h 45m
        1 stop
        SOF 12:20
        Trieste - Sofia | Tue, Mar 24 | ITA Airways
        US$199 US$353
        44% off
        44% off
        US$353 US$199
      • TRS 06:15
        6h 10m
        1 stop
        SOF 13:25
        Trieste - Sofia | Tue, Mar 24 | Lufthansa
        US$260 US$353
        26% off
        26% off
        US$353 US$260
      • TRS 06:15
        15h 30m
        1 stop
        SOF 22:45
        Trieste - Sofia | Tue, Mar 24 | Air Dolomiti
        US$300
        15% off
        US$353 US$300
      • TRS 06:00
        15h 40m
        1 stop
        SOF 22:40
        Trieste - Sofia | Fri, Apr 3 | Air Dolomiti
        US$307
        13% off
        US$353 US$307
      • TRS 14:40
        7h 10m
        1 stop
        SOF 22:50
        Trieste - Sofia | Thu, Apr 2 | Air Dolomiti
        US$307
        13% off
        US$353 US$307
      • TRS 13:00
        17h 25m
        1 stop
        SOF Invalid Date
        Trieste - Sofia | Tue, Mar 17 | Normal Airline
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Displayed flight fares from Trieste to Sofia are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Trieste to Sofia

The distance between Trieste and Sofia is 863.56km. Based on Trip.com's data, travel demand peaks in January. The off-season for travel is November.

Cheapest one-way flight priceUS$113
Cheapest return ticket priceUS$178
Off-season travel monthNovember
Peak season for travelJanuary
Flight distance863.56km
Flight statistics for the Trieste–Sofia route are based on aggregated booking data from Trip.com over the past 12 months.

Flight FAQs

  • Which airlines offer the cheapest flights from Trieste (TRS) to Sofia (SOF)?

    Based on Trip.com data, ITA Airways offers one-way fares as low as US$113 on Cheapest nonstop routes (e.g. TRS to SOF on Thu, Apr 2), while ITA Airways offers Cheapest nonstop round-trips from US$178 departing on Wed, Apr 1 and returning on Sun, Apr 5.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Trieste to Sofia is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Trieste to Sofia, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Apr 2, with one-way flights priced at just US$113.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is ITA Airways.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sofia travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Trieste to Sofia is November, when demand for travel is lower.
  • After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Trieste to Sofia on March 19, 2026 with Lufthansa, with prices starting at US$193.
  • The time difference between Sofia and Trieste is 1h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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