{
    "query": {
        "region": "European rivers",
        "depart_from": "2027-04-01",
        "depart_to": "2027-04-30",
        "from_port": [
            "paris",
            "naples",
            "basel"
        ],
        "sort": "best_value"
    },
    "matching_sailings": 75,
    "priced_within_limits": 75,
    "returned": 10,
    "results": [
        {
            "sailing_id": "88795",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Hervor",
            "depart_date": "2027-04-01",
            "return_date": "2027-04-08",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Speyer, Germany",
                "Rudesheim am Rhein, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 3799,
            "price_per_person_per_night": 543,
            "cabin_for_two": 7598,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -5,
                "usual_per_person_per_night": 571,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": {
                "percent": 12,
                "own_typical_per_person": 4299,
                "reads": 15,
                "since": "2026-10-08"
            },
            "prices": {
                "oceanview": {
                    "per_person": 2799,
                    "per_person_per_night": 400,
                    "cabin_for_two": 5598,
                    "priced_on": "2026-10-27"
                },
                "balcony": {
                    "per_person": 3799,
                    "per_person_per_night": 543,
                    "cabin_for_two": 7598,
                    "priced_on": "2026-10-27"
                }
            },
            "priced_on": "2026-10-27",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-hervor-basel-to-amsterdam-7-nights-6409be3c77d0?depart=2027-04-01&grade=balcony"
        },
        {
            "sailing_id": "108682",
            "line": "AmaWaterways",
            "tier": "River",
            "ship": "AmaPrima",
            "depart_date": "2027-04-07",
            "return_date": "2027-04-17",
            "nights": 10,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Strasbourg, Alsace, France",
                "Breisach am Rhein, Germany",
                "Rudesheim am Rhein, Germany",
                "Basel, Switzerland",
                "Ludwigshafen am Rhein, Germany",
                "Bernkastel-Kues, Germany",
                "Cochem, Germany",
                "Cologne, Germany",
                "Amsterdam, The Netherlands"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 6298,
            "price_per_person_per_night": 630,
            "cabin_for_two": 12596,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -11,
                "usual_per_person_per_night": 706,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": {
                "percent": 11,
                "own_typical_per_person": 7048,
                "reads": 21,
                "since": "2026-09-25"
            },
            "prices": {
                "oceanview": {
                    "per_person": 4149,
                    "per_person_per_night": 415,
                    "cabin_for_two": 8298,
                    "priced_on": "2026-10-26"
                },
                "balcony": {
                    "per_person": 6298,
                    "per_person_per_night": 630,
                    "cabin_for_two": 12596,
                    "priced_on": "2026-10-27"
                },
                "suite": {
                    "per_person": 10048,
                    "per_person_per_night": 1005,
                    "cabin_for_two": 20096,
                    "priced_on": "2026-10-27"
                }
            },
            "priced_on": "2026-10-27",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/amaprima-basel-to-amsterdam-10-nights-e9b0c9d9904f?depart=2027-04-07&grade=balcony"
        },
        {
            "sailing_id": "109664",
            "line": "Avalon",
            "tier": "River",
            "ship": "Avalon Envision",
            "depart_date": "2027-04-06",
            "return_date": "2027-04-13",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Mainz, Germany",
                "Cologne, Germany",
                "Amsterdam, The Netherlands"
            ],
            "quoted_cabin": "oceanview",
            "price_per_person": 4076,
            "price_per_person_per_night": 582,
            "cabin_for_two": 8152,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -8,
                "usual_per_person_per_night": 636,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 4076,
                    "per_person_per_night": 582,
                    "cabin_for_two": 8152,
                    "priced_on": "2026-10-27"
                },
                "suite": {
                    "per_person": 6175,
                    "per_person_per_night": 882,
                    "cabin_for_two": 12350,
                    "priced_on": "2026-10-27"
                }
            },
            "priced_on": "2026-10-27",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/avalon-envision-basel-to-amsterdam-7-nights-f282d2730817?depart=2027-04-06&grade=outside"
        },
        {
            "sailing_id": "89015",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Mani",
            "depart_date": "2027-04-09",
            "return_date": "2027-04-16",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Speyer, Germany",
                "Rudesheim am Rhein, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 4999,
            "price_per_person_per_night": 714,
            "cabin_for_two": 9998,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -6,
                "usual_per_person_per_night": 757,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 4499,
                    "per_person_per_night": 643,
                    "cabin_for_two": 8998,
                    "priced_on": "2026-10-27"
                },
                "balcony": {
                    "per_person": 4999,
                    "per_person_per_night": 714,
                    "cabin_for_two": 9998,
                    "priced_on": "2026-10-18"
                }
            },
            "priced_on": "2026-10-18",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-mani-basel-to-amsterdam-7-nights-706c92c6778a?depart=2027-04-09&grade=balcony"
        },
        {
            "sailing_id": "138392",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Fulla",
            "depart_date": "2027-04-11",
            "return_date": "2027-04-18",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Speyer, Germany",
                "Rudesheim am Rhein, Germany",
                "Koblenz, Switzerland",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 4499,
            "price_per_person_per_night": 643,
            "cabin_for_two": 8998,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -3,
                "usual_per_person_per_night": 664,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2999,
                    "per_person_per_night": 428,
                    "cabin_for_two": 5998,
                    "priced_on": "2026-10-28"
                },
                "balcony": {
                    "per_person": 4499,
                    "per_person_per_night": 643,
                    "cabin_for_two": 8998,
                    "priced_on": "2026-10-28"
                }
            },
            "priced_on": "2026-10-28",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-fulla-basel-to-amsterdam-7-nights-2ac00503f053?depart=2027-04-11&grade=balcony"
        },
        {
            "sailing_id": "108677",
            "line": "AmaWaterways",
            "tier": "River",
            "ship": "AmaSofia",
            "depart_date": "2027-04-03",
            "return_date": "2027-04-10",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Cologne, Germany",
                "Strasbourg, Alsace, France",
                "Lahnstein, Germany",
                "Amsterdam, The Netherlands",
                "Basel, Switzerland",
                "Ludwigshafen am Rhein, Germany",
                "Rudesheim am Rhein, Germany"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 5678,
            "price_per_person_per_night": 811,
            "cabin_for_two": 11356,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -1,
                "usual_per_person_per_night": 818,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 4479,
                    "per_person_per_night": 640,
                    "cabin_for_two": 8958,
                    "priced_on": "2026-10-27"
                },
                "balcony": {
                    "per_person": 5678,
                    "per_person_per_night": 811,
                    "cabin_for_two": 11356,
                    "priced_on": "2026-10-27"
                },
                "suite": {
                    "per_person": 8678,
                    "per_person_per_night": 1240,
                    "cabin_for_two": 17356,
                    "priced_on": "2026-10-27"
                }
            },
            "priced_on": "2026-10-27",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/amasofia-basel-to-amsterdam-7-nights-810f91278372?depart=2027-04-03&grade=balcony"
        },
        {
            "sailing_id": "88839",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Kara",
            "depart_date": "2027-04-11",
            "return_date": "2027-04-18",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Rudesheim am Rhein, Germany",
                "Speyer, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "oceanview",
            "price_per_person": 2999,
            "price_per_person_per_night": 428,
            "cabin_for_two": 5998,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": 0,
                "usual_per_person_per_night": 428,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2999,
                    "per_person_per_night": 428,
                    "cabin_for_two": 5998,
                    "priced_on": "2026-10-28"
                }
            },
            "priced_on": "2026-10-28",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-kara-basel-to-amsterdam-7-nights-8eeaf7bb97a5?depart=2027-04-11&grade=outside"
        },
        {
            "sailing_id": "89313",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Tialfi",
            "depart_date": "2027-04-03",
            "return_date": "2027-04-10",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Speyer, Germany",
                "Rudesheim am Rhein, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 4299,
            "price_per_person_per_night": 614,
            "cabin_for_two": 8598,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": 0,
                "usual_per_person_per_night": 614,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2799,
                    "per_person_per_night": 400,
                    "cabin_for_two": 5598,
                    "priced_on": "2026-10-27"
                },
                "balcony": {
                    "per_person": 4299,
                    "per_person_per_night": 614,
                    "cabin_for_two": 8598,
                    "priced_on": "2026-10-27"
                },
                "suite": {
                    "per_person": 6499,
                    "per_person_per_night": 928,
                    "cabin_for_two": 12998,
                    "priced_on": "2026-10-27"
                }
            },
            "priced_on": "2026-10-27",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-tialfi-basel-to-amsterdam-7-nights-84f1528f6fb7?depart=2027-04-03&grade=balcony"
        },
        {
            "sailing_id": "119839",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Halogi",
            "depart_date": "2027-04-05",
            "return_date": "2027-04-12",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Koblenz, Switzerland",
                "Kinderdijk, Netherlands",
                "Rudesheim am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Cologne, Germany",
                "Breisach am Rhein, Germany",
                "Amsterdam, The Netherlands",
                "Speyer, Germany"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 4299,
            "price_per_person_per_night": 614,
            "cabin_for_two": 8598,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": 0,
                "usual_per_person_per_night": 614,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2849,
                    "per_person_per_night": 407,
                    "cabin_for_two": 5698,
                    "priced_on": "2026-10-27"
                },
                "balcony": {
                    "per_person": 4299,
                    "per_person_per_night": 614,
                    "cabin_for_two": 8598,
                    "priced_on": "2026-10-28"
                },
                "suite": {
                    "per_person": 8499,
                    "per_person_per_night": 1214,
                    "cabin_for_two": 16998,
                    "priced_on": "2026-10-28"
                }
            },
            "priced_on": "2026-10-28",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-halogi-basel-to-amsterdam-7-nights-d88de55d6dca?depart=2027-04-05&grade=balcony"
        },
        {
            "sailing_id": "88406",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Eir",
            "depart_date": "2027-04-02",
            "return_date": "2027-04-09",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Strasbourg, Alsace, France",
                "Speyer, Germany",
                "Rudesheim am Rhein, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 4499,
            "price_per_person_per_night": 643,
            "cabin_for_two": 8998,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": 0,
                "usual_per_person_per_night": 643,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2799,
                    "per_person_per_night": 400,
                    "cabin_for_two": 5598,
                    "priced_on": "2026-10-27"
                },
                "balcony": {
                    "per_person": 4499,
                    "per_person_per_night": 643,
                    "cabin_for_two": 8998,
                    "priced_on": "2026-10-27"
                },
                "suite": {
                    "per_person": 8299,
                    "per_person_per_night": 1186,
                    "cabin_for_two": 16598,
                    "priced_on": "2026-10-27"
                }
            },
            "priced_on": "2026-10-27",
            "from_price_per_person": null,
            "from_price_on": null,
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-eir-basel-to-amsterdam-7-nights-78e2a90fe841?depart=2027-04-02&grade=balcony"
        }
    ],
    "notes": [
        "Prices are US dollars per person, for the whole cruise, cabin for two sharing, taxes and port fees included (Viking River quotes exclude taxes), the cheapest cabin of that grade as sold through Cruisebound, read by Fantasize on the priced_on date. Fares move daily: quote the date with the price.",
        "book_url opens this exact sailing on fantasize.net; the person taps Book there to reserve it with Cruisebound (a licensed US cruise seller). The tools do not book or take payment.",
        "best_value ranks by the stronger of two measures: how far each fare sits below the usual price for the same cruise on other dates, else the same ship, line or tier with the same length and region (vs_usual says which), and how far the fare sits under its own typical price over the last 90 days (price_cut, from at least 4 earlier reads). Sailings with neither come after, cheapest per night first."
    ]
}