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Flights from Karlsruhe to Sofia

Find the cheapest direct flight options from Karlsruhe to Sofia over the next three months. Book one-way tickets from 155 AZN and round-trip tickets from 280 AZN.

      • Cheapest nonstop
        FKB 06:20
        2h 20m
        Direct
        SOF 09:40
        Karlsruhe - Sofia | Thu, Jan 22 | Ryanair
        SOF 10:05
        2h 20m
        Direct
        FKB 11:25
        Sofia - Karlsruhe | Thu, Jan 29 | Ryanair
        280 AZN 511 AZN
        45% OFF
        45% OFF
        511 AZN 280 AZN
      • FKB 12:45
        2h 20m
        Direct
        SOF 16:05
        Karlsruhe - Sofia | Sun, Jan 18 | Ryanair
        SOF 16:30
        2h 20m
        Direct
        FKB 17:50
        Sofia - Karlsruhe | Sun, Jan 25 | Ryanair
        297 AZN 511 AZN
        42% OFF
        42% OFF
        511 AZN 297 AZN
      • FKB 06:20
        2h 20m
        Direct
        SOF 09:40
        Karlsruhe - Sofia | Thu, Jan 15 | Ryanair
        SOF 16:30
        2h 20m
        Direct
        FKB 17:50
        Sofia - Karlsruhe | Sun, Jan 18 | Ryanair
        301 AZN 511 AZN
        41% OFF
        41% OFF
        511 AZN 301 AZN
      • FKB 12:45
        2h 20m
        Direct
        SOF 16:05
        Karlsruhe - Sofia | Sun, Jan 25 | Ryanair
        SOF 16:30
        2h 20m
        Direct
        FKB 17:50
        Sofia - Karlsruhe | Sun, Feb 1 | Ryanair
        305 AZN
        40% OFF
        511 AZN 305 AZN
      • FKB 06:20
        2h 20m
        Direct
        SOF 09:40
        Karlsruhe - Sofia | Thu, Jan 29 | Ryanair
        SOF 16:30
        2h 20m
        Direct
        FKB 17:50
        Sofia - Karlsruhe | Sun, Feb 1 | Ryanair
        355 AZN
        30% OFF
        511 AZN 355 AZN
      • FKB 07:30
        2h 20m
        Direct
        SOF 10:50
        Karlsruhe - Sofia | Sat, Feb 7 | Ryanair
        SOF 05:45
        2h 20m
        Direct
        FKB 07:05
        Sofia - Karlsruhe | Sat, Feb 14 | Ryanair
        396 AZN
        22% OFF
        511 AZN 396 AZN
      • FKB 06:20
        2h 20m
        Direct
        SOF 09:40
        Karlsruhe - Sofia | Thu, Dec 11 | Ryanair
        SOF 21:30
        2h 20m
        Direct
        FKB 22:50
        Sofia - Karlsruhe | Mon, Dec 15 | Ryanair
        408 AZN
        20% OFF
        511 AZN 408 AZN
      • FKB 12:45
        2h 20m
        Direct
        SOF 16:05
        Karlsruhe - Sofia | Sun, Feb 1 | Ryanair
        SOF 05:45
        2h 20m
        Direct
        FKB 07:05
        Sofia - Karlsruhe | Sat, Feb 7 | Ryanair
        417 AZN
        18% OFF
        511 AZN 417 AZN
      • FKB 12:45
        2h 20m
        Direct
        SOF 16:05
        Karlsruhe - Sofia | Sun, Jan 11 | Ryanair
        SOF 10:05
        2h 20m
        Direct
        FKB 11:25
        Sofia - Karlsruhe | Thu, Jan 15 | Ryanair
        417 AZN
        18% OFF
        511 AZN 417 AZN
      • FKB 06:20
        2h 20m
        Direct
        SOF 09:40
        Karlsruhe - Sofia | Thu, Jan 8 | Ryanair
        SOF 10:05
        2h 20m
        Direct
        FKB 11:25
        Sofia - Karlsruhe | Thu, Jan 15 | Ryanair
        454 AZN
        11% OFF
        511 AZN 454 AZN
      • FKB 13:00
        17h 25m
        1 stop
        SOF Invalid Date
        Karlsruhe - Sofia | Fri, Dec 12 | Normal Airline
        SOF 15:00
        6h
        Direct
        FKB 16:00
        Sofia - Karlsruhe | Sun, Dec 14 | Normal Airline
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Displayed flight fares from Karlsruhe to Sofia are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Karlsruhe to Sofia

The distance between Karlsruhe and Sofia is 1,353.78km. It takes around 2 hours 20 minutes on average to fly from Karlsruhe to Sofia. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is August.

Cheapest one-way flight price155 AZN
Cheapest return ticket price280 AZN
Off-season travel monthAugust
Peak season for travelJuly
Flight distance1,353.78km
Average flight time2 hours 20 minutes

Find the best time to fly from Karlsruhe to Sofia

The cheapest time for Karlsruhe to Sofia flights: Jan 25 to Feb 1 — one way flight prices from 156 AZN.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Karlsruhe to Sofia, calculated over the upcoming 10 weeks.

Flight FAQs

  • Which airlines offer the cheapest flights from Karlsruhe (FKB) to Sofia (SOF)?

    Based on Trip.com data, Ryanair offers one-way fares as low as 155 AZN on Cheapest nonstop routes (e.g. FKB to SOF on Thu, Dec 11), while Ryanair offers Cheapest nonstop round-trips from 280 AZN departing on Thu, Jan 22 and returning on Thu, Jan 29.
  • It takes about 2 hours 20 minutes to fly from Karlsruhe (FKB) to Sofia (SOF).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Karlsruhe 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 Karlsruhe 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, Dec 11, with one-way flights priced at just 155 AZN.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Ryanair.
    · 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 July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Karlsruhe to Sofia is August, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Karlsruhe to Sofia on December 11, 2025 with Ryanair, with prices starting at 408 AZN.
  • The time difference between Sofia and Karlsruhe 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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