# Flights from Cologne (CGN) to Sofia (SOF)

1 direct, 61 routes with 1 stop, 5440 with 2 stops. Straight-line distance 1533 km.

## Direct

Ryanair, Swiftair flies direct, about 1536 km.

## Shortest routes

- CGN → SOF · 1536 km · about 145 min · 0 stops
- CGN → NUE → SOF · 1536 km · about 266 min · 1 stop
- CGN → MUC → SOF · 1541 km · about 260 min · 1 stop
- CGN → VIE → SOF · 1554 km · about 270 min · 1 stop
- CGN → BUD → SOF · 1583 km · about 275 min · 1 stop
- CGN → PRG → SOF · 1595 km · about 270 min · 1 stop
- CGN → DTM → SOF · 1623 km · about 271 min · 1 stop
- CGN → ZRH → SOF · 1676 km · about 290 min · 1 stop

## How to query this

- JSON: https://travel.buy-it.gr/api/v1/routes/CGN/SOF
- This page: https://travel.buy-it.gr/api/v1/routes/CGN/SOF.md
- HTML, English: https://travel.buy-it.gr/en/flights/CGN-SOF
- All routes: https://travel.buy-it.gr/api/search?from=CGN&to=SOF&maxStops=2
- Operating days for one leg: https://travel.buy-it.gr/api/leg?from=CGN&to=SOF
- Price a path on one date: https://travel.buy-it.gr/api/price?path=CGN,SOF&date=2026-10-10

Replace airport codes in any of those URLs. `path` is comma-separated IATA codes, 2 to 5 airports. `date` is YYYY-MM-DD. `carriers` is optional, legs joined by `|` and airlines inside a leg joined by `.`, for example `FR|LO`.

The first flight must leave on `date`. Each following flight may leave that same day or the next day, and must depart at least 90 minutes after the previous flight lands. A response with `partial: true` on a calendar lists days a source has seen. It does not prove the other days are empty.

No API key. Responses are JSON unless the URL ends in `.md`. Prices are euros. `total: null` means no fare was found for the first flight on that date.