US$22 : Cheap Flights from Karlsruhe to Sofia
Compare airlines and prices on flights from Karlsruhe to Sofia.
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Flight deals from Karlsruhe to Sofia
Find the cheapest direct flight options from Karlsruhe to Sofia over the next three months. Book one-way tickets from US$22 and round-trip tickets from US$40.
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Cheapest nonstop
FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Jan 22 | Ryanair
SOF 10:052h 20mDirectFKB 11:25Sofia - Karlsruhe | Thu, Jan 29 | RyanairUS$40 US$7345% OFF45% OFFUS$73 US$40 -
FKB 12:452h 20mDirectSOF 16:05Karlsruhe - Sofia | Sun, Jan 18 | Ryanair
SOF 16:302h 20mDirectFKB 17:50Sofia - Karlsruhe | Sun, Jan 25 | RyanairUS$43 US$7342% OFF42% OFFUS$73 US$43
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FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Jan 15 | Ryanair
SOF 16:302h 20mDirectFKB 17:50Sofia - Karlsruhe | Sun, Jan 18 | RyanairUS$43 US$7341% OFF41% OFFUS$73 US$43
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FKB 12:452h 20mDirectSOF 16:05Karlsruhe - Sofia | Sun, Jan 25 | Ryanair
SOF 16:302h 20mDirectFKB 17:50Sofia - Karlsruhe | Sun, Feb 1 | RyanairUS$4440% OFFUS$73 US$44
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FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Jan 29 | Ryanair
SOF 16:302h 20mDirectFKB 17:50Sofia - Karlsruhe | Sun, Feb 1 | RyanairUS$5130% OFFUS$73 US$51
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FKB 07:302h 20mDirectSOF 10:50Karlsruhe - Sofia | Sat, Feb 7 | Ryanair
SOF 05:452h 20mDirectFKB 07:05Sofia - Karlsruhe | Sat, Feb 14 | RyanairUS$5722% OFFUS$73 US$57
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FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Dec 11 | Ryanair
SOF 21:302h 20mDirectFKB 22:50Sofia - Karlsruhe | Mon, Dec 15 | RyanairUS$5820% OFFUS$73 US$58
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FKB 12:452h 20mDirectSOF 16:05Karlsruhe - Sofia | Sun, Feb 1 | Ryanair
SOF 05:452h 20mDirectFKB 07:05Sofia - Karlsruhe | Sat, Feb 7 | RyanairUS$6018% OFFUS$73 US$60
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FKB 12:452h 20mDirectSOF 16:05Karlsruhe - Sofia | Sun, Jan 11 | Ryanair
SOF 10:052h 20mDirectFKB 11:25Sofia - Karlsruhe | Thu, Jan 15 | RyanairUS$6018% OFFUS$73 US$60
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FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Jan 8 | Ryanair
SOF 10:052h 20mDirectFKB 11:25Sofia - Karlsruhe | Thu, Jan 15 | RyanairUS$6511% OFFUS$73 US$65
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FKB 13:0017h 25m1 stopSOF Invalid DateKarlsruhe - Sofia | Fri, Dec 12 | Normal Airline
SOF 15:006hDirectFKB 16:00Sofia - Karlsruhe | Sun, Dec 14 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Dec 11 | RyanairUS$22 US$6063% OFF63% OFFUS$60 US$22
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FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Jan 29 | RyanairUS$23 US$6063% OFF63% OFFUS$60 US$23
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FKB 12:452h 20mDirectSOF 16:05Karlsruhe - Sofia | Sun, Feb 1 | RyanairUS$32 US$6046% OFF46% OFFUS$60 US$32
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FKB 06:202h 20mDirectSOF 09:40Karlsruhe - Sofia | Thu, Jan 1 | RyanairUS$3837% OFFUS$60 US$38
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FKB 16:352h 20mDirectSOF 19:55Karlsruhe - Sofia | Tue, Dec 30 | RyanairUS$4230% OFFUS$60 US$42
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FKB 07:302h 20mDirectSOF 10:50Karlsruhe - Sofia | Sat, Dec 13 | RyanairUS$4427% OFFUS$60 US$44
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FKB 17:452h 20mDirectSOF 21:05Karlsruhe - Sofia | Mon, Dec 29 | RyanairUS$5311% OFFUS$60 US$53
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FKB 14:3027h 5m1 stopSOF 18:35Karlsruhe - Sofia | Wed, Jan 14 | RyanairUS$4722% OFFUS$60 US$47
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FKB 21:2517h 10m1 stopSOF 15:35Karlsruhe - Sofia | Tue, Jan 6 | RyanairUS$4918% OFFUS$60 US$49
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FKB 22:5518h 5m1 stopSOF 18:00Karlsruhe - Sofia | Thu, Jan 8 | RyanairUS$5115% OFFUS$60 US$51
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FKB 13:0017h 25m1 stopSOF Invalid DateKarlsruhe - Sofia | Fri, Dec 12 | Normal AirlineFind More FlightsFind More Flights
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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 1,353.78 km. 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 price | US$22 |
|---|---|
| Cheapest round-trip ticket price | US$40 |
| Off-season for travel | August |
| Peak season for travel | July |
| Flight distance | 1,353.78 km |
| Average flight time | 2 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 US$22.
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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
What are the cheapest flights from Karlsruhe to Sofia (FKB-SOF)?
Based on Trip.com data, Ryanair offers one-way fares as low as US$22 on Cheapest nonstop routes (e.g. FKB to SOF on Thu, Dec 11), while Ryanair offers Cheapest nonstop round-trips from US$40 departing on Thu, Jan 22 and returning on Thu, Jan 29.How long does it take to fly from Karlsruhe (FKB) to Sofia (SOF) and what is the distance?
It takes around 2 hours 20 minutes to fly from Karlsruhe (FKB) to Sofia (SOF).When is the best time to book flights from Karlsruhe to Sofia?
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.How can I find the best deals on flights from Karlsruhe to Sofia?
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 US$22.
· 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.When are flight tickets from Karlsruhe (FKB) to Sofia (SOF) the cheapest?
The cheapest months to fly from Karlsruhe to Sofia is August, when demand for travel is lower.Which upcoming date is cheapest to fly from Karlsruhe to Sofia on?
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 US$57.Is there any time difference between Karlsruhe and Sofia?
The time difference between Sofia and Karlsruhe is 1h.How do I change or cancel my ticket from Karlsruhe to Sofia?
Tickets can only be changed or canceled 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.