{
    "query": {
        "depart_from": "2028-08-01",
        "depart_to": "2028-08-31",
        "from_port": [
            "paranagua",
            "basel"
        ],
        "sort": "best_value"
    },
    "matching_sailings": 55,
    "priced_within_limits": 55,
    "returned": 10,
    "results": [
        {
            "sailing_id": "9284",
            "line": "Avalon",
            "tier": "River",
            "ship": "Avalon Panorama",
            "depart_date": "2028-08-05",
            "return_date": "2028-08-12",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Mainz, Germany",
                "Amsterdam, The Netherlands",
                "Breisach am Rhein, Germany",
                "Basel, Switzerland",
                "Cologne, Germany"
            ],
            "quoted_cabin": "oceanview",
            "price_per_person": 3451,
            "price_per_person_per_night": 493,
            "cabin_for_two": 6902,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -27,
                "usual_per_person_per_night": 672,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 3451,
                    "per_person_per_night": 493,
                    "cabin_for_two": 6902
                },
                "suite": {
                    "per_person": 5550,
                    "per_person_per_night": 793,
                    "cabin_for_two": 11100
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/avalon-panorama-basel-to-amsterdam-7-nights-1fff1ddc2879?depart=2028-08-05&grade=outside"
        },
        {
            "sailing_id": "135695",
            "line": "Avalon",
            "tier": "River",
            "ship": "Avalon Vista",
            "depart_date": "2028-08-12",
            "return_date": "2028-08-19",
            "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": 3451,
            "price_per_person_per_night": 493,
            "cabin_for_two": 6902,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -22,
                "usual_per_person_per_night": 636,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 3451,
                    "per_person_per_night": 493,
                    "cabin_for_two": 6902
                },
                "suite": {
                    "per_person": 5550,
                    "per_person_per_night": 793,
                    "cabin_for_two": 11100
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/avalon-vista-basel-to-amsterdam-7-nights-ec4307506a4f?depart=2028-08-12&grade=outside"
        },
        {
            "sailing_id": "135699",
            "line": "Avalon",
            "tier": "River",
            "ship": "Avalon Envision",
            "depart_date": "2028-08-15",
            "return_date": "2028-08-22",
            "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": 3551,
            "price_per_person_per_night": 507,
            "cabin_for_two": 7102,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -20,
                "usual_per_person_per_night": 636,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 3551,
                    "per_person_per_night": 507,
                    "cabin_for_two": 7102
                },
                "suite": {
                    "per_person": 5650,
                    "per_person_per_night": 807,
                    "cabin_for_two": 11300
                }
            },
            "priced_on": "2026-10-02",
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/avalon-envision-basel-to-amsterdam-7-nights-5286889e7691?depart=2028-08-15&grade=outside"
        },
        {
            "sailing_id": "20240",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Sigyn",
            "depart_date": "2028-08-01",
            "return_date": "2028-08-08",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Amsterdam, The Netherlands",
                "Strasbourg, Alsace, France",
                "Breisach am Rhein, Germany",
                "Rudesheim am Rhein, Germany",
                "Basel, Switzerland",
                "Kinderdijk, Netherlands",
                "Cologne, Germany",
                "Koblenz, Switzerland",
                "Speyer, Germany"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 3499,
            "price_per_person_per_night": 500,
            "cabin_for_two": 6998,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -19,
                "usual_per_person_per_night": 614,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2599,
                    "per_person_per_night": 371,
                    "cabin_for_two": 5198
                },
                "balcony": {
                    "per_person": 3499,
                    "per_person_per_night": 500,
                    "cabin_for_two": 6998
                },
                "suite": {
                    "per_person": 5999,
                    "per_person_per_night": 857,
                    "cabin_for_two": 11998
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-sigyn-basel-to-amsterdam-7-nights-e006e0bb14fc?depart=2028-08-01&grade=balcony"
        },
        {
            "sailing_id": "12134",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Tialfi",
            "depart_date": "2028-08-05",
            "return_date": "2028-08-12",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Breisach am Rhein, Germany",
                "Rudesheim am Rhein, Germany",
                "Speyer, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Strasbourg, Alsace, France",
                "Koblenz, Switzerland",
                "Basel, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 3499,
            "price_per_person_per_night": 500,
            "cabin_for_two": 6998,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -19,
                "usual_per_person_per_night": 614,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2599,
                    "per_person_per_night": 371,
                    "cabin_for_two": 5198
                },
                "balcony": {
                    "per_person": 3499,
                    "per_person_per_night": 500,
                    "cabin_for_two": 6998
                },
                "suite": {
                    "per_person": 5999,
                    "per_person_per_night": 857,
                    "cabin_for_two": 11998
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-tialfi-basel-to-amsterdam-7-nights-f5fce6e2e6c2?depart=2028-08-05&grade=balcony"
        },
        {
            "sailing_id": "119408",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Kara",
            "depart_date": "2028-08-13",
            "return_date": "2028-08-20",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Basel, Switzerland",
                "Kinderdijk, Netherlands",
                "Koblenz, Switzerland",
                "Breisach am Rhein, Germany",
                "Speyer, Germany",
                "Amsterdam, The Netherlands",
                "Strasbourg, Alsace, France",
                "Cologne, Germany",
                "Rudesheim am Rhein, Germany"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 4099,
            "price_per_person_per_night": 586,
            "cabin_for_two": 8198,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -18,
                "usual_per_person_per_night": 714,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2699,
                    "per_person_per_night": 386,
                    "cabin_for_two": 5398
                },
                "balcony": {
                    "per_person": 4099,
                    "per_person_per_night": 586,
                    "cabin_for_two": 8198
                },
                "suite": {
                    "per_person": 6299,
                    "per_person_per_night": 900,
                    "cabin_for_two": 12598
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-kara-basel-to-amsterdam-7-nights-a8caf527a025?depart=2028-08-13&grade=balcony"
        },
        {
            "sailing_id": "9336",
            "line": "Avalon",
            "tier": "River",
            "ship": "Avalon Panorama",
            "depart_date": "2028-08-19",
            "return_date": "2028-08-26",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Amsterdam, The Netherlands",
                "Basel, Switzerland",
                "Breisach am Rhein, Germany",
                "Mainz, Germany",
                "Cologne, Germany"
            ],
            "quoted_cabin": "oceanview",
            "price_per_person": 3901,
            "price_per_person_per_night": 557,
            "cabin_for_two": 7802,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -17,
                "usual_per_person_per_night": 672,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 3901,
                    "per_person_per_night": 557,
                    "cabin_for_two": 7802
                },
                "suite": {
                    "per_person": 6000,
                    "per_person_per_night": 857,
                    "cabin_for_two": 12000
                }
            },
            "priced_on": "2026-10-02",
            "taxes_included": true,
            "book_url": "https://fantasize.net/cruise/avalon-panorama-basel-to-amsterdam-7-nights-d569fecbdf83?depart=2028-08-19&grade=outside"
        },
        {
            "sailing_id": "119260",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Hlin",
            "depart_date": "2028-08-06",
            "return_date": "2028-08-13",
            "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",
                "Strasbourg, Alsace, France",
                "Speyer, Germany",
                "Rudesheim am Rhein, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 3999,
            "price_per_person_per_night": 571,
            "cabin_for_two": 7998,
            "vs_usual": {
                "verdict": "low",
                "percent_vs_usual": -17,
                "usual_per_person_per_night": 686,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2599,
                    "per_person_per_night": 371,
                    "cabin_for_two": 5198
                },
                "balcony": {
                    "per_person": 3999,
                    "per_person_per_night": 571,
                    "cabin_for_two": 7998
                },
                "suite": {
                    "per_person": 5999,
                    "per_person_per_night": 857,
                    "cabin_for_two": 11998
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-hlin-basel-to-amsterdam-7-nights-d8ca96de4d16?depart=2028-08-06&grade=balcony"
        },
        {
            "sailing_id": "20262",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Sigrun",
            "depart_date": "2028-08-09",
            "return_date": "2028-08-16",
            "nights": 7,
            "departs_from": "Basel, Switzerland",
            "ends_at": "Amsterdam, The Netherlands",
            "trip_type": "one_way",
            "region": "Europe",
            "ports_of_call": [
                "Breisach am Rhein, Germany",
                "Rudesheim am Rhein, Germany",
                "Cologne, Germany",
                "Kinderdijk, Netherlands",
                "Amsterdam, The Netherlands",
                "Speyer, Germany",
                "Strasbourg, Alsace, France",
                "Basel, Switzerland",
                "Koblenz, Switzerland"
            ],
            "quoted_cabin": "balcony",
            "price_per_person": 3599,
            "price_per_person_per_night": 514,
            "cabin_for_two": 7198,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -16,
                "usual_per_person_per_night": 614,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2699,
                    "per_person_per_night": 386,
                    "cabin_for_two": 5398
                },
                "balcony": {
                    "per_person": 3599,
                    "per_person_per_night": 514,
                    "cabin_for_two": 7198
                },
                "suite": {
                    "per_person": 6299,
                    "per_person_per_night": 900,
                    "cabin_for_two": 12598
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-sigrun-basel-to-amsterdam-7-nights-b3d2aa355589?depart=2028-08-09&grade=balcony"
        },
        {
            "sailing_id": "119169",
            "line": "Viking River",
            "tier": "River",
            "ship": "Viking Gersemi",
            "depart_date": "2028-08-10",
            "return_date": "2028-08-17",
            "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": "balcony",
            "price_per_person": 3599,
            "price_per_person_per_night": 514,
            "cabin_for_two": 7198,
            "vs_usual": {
                "verdict": "typical",
                "percent_vs_usual": -16,
                "usual_per_person_per_night": 614,
                "compared_with": "other dates of this sailing"
            },
            "price_cut": null,
            "prices": {
                "oceanview": {
                    "per_person": 2699,
                    "per_person_per_night": 386,
                    "cabin_for_two": 5398
                },
                "balcony": {
                    "per_person": 3599,
                    "per_person_per_night": 514,
                    "cabin_for_two": 7198
                },
                "suite": {
                    "per_person": 6299,
                    "per_person_per_night": 900,
                    "cabin_for_two": 12598
                }
            },
            "priced_on": "2026-10-01",
            "taxes_included": false,
            "book_url": "https://fantasize.net/cruise/viking-gersemi-basel-to-amsterdam-7-nights-3a2471aea528?depart=2028-08-10&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."
    ]
}