# Flights from Porto (OPO) to Cologne (CGN)

1 direct, 61 routes with 1 stop, 6628 with 2 stops. Straight-line distance 1617 km.

## Direct

Ryanair, Eurowings, Maersk Air Cargo flies direct, about 1619 km.

## Shortest routes

- OPO → CGN · 1619 km · about 160 min · 0 stops
- OPO → CDG → CGN · 1620 km · about 281 min · 1 stop
- OPO → EIN → CGN · 1700 km · about 276 min · 1 stop
- OPO → LGW → CGN · 1792 km · about 310 min · 1 stop
- OPO → LYS → CGN · 1809 km · about 287 min · 1 stop
- OPO → BSL → CGN · 1833 km · about 294 min · 1 stop
- OPO → STN → CGN · 1855 km · about 315 min · 1 stop
- OPO → LTN → CGN · 1873 km · about 298 min · 1 stop

## How to query this

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