Where those flowers go is what makes Ontario different from its neighbors. This city holds the largest cluster of hotel rooms in the west Inland Empire, because Ontario International Airport and the Ontario Convention Center sit within two miles of each other and the rooms grew up around them: the DoubleTree by Hilton Ontario Airport on North Vineyard Avenue, the Ontario Airport Hotel and Conference Center on North Haven Avenue, and the long row of Marriott-, Hilton- and Hyatt-family properties along Inland Empire Boulevard, East Airport Drive and the streets feeding Toyota Arena and the Convention Center. Couples use those rooms for exactly the reason you would expect — a night away without taking a day off, a weekend built around a flight into ONT, a room booked because the in-laws have the kids. Front-desk anniversary drops are routine here, and the desk will usually hold an arrangement in the back if check-in is late. What the desk cannot do is guess: give the reservation surname exactly as it was booked and the arrival date.
The dinner half of the evening usually happens outside the city, and the geography is worth knowing before you choose a delivery time. Couples from Ontario drive west to Claremont Village for the restaurant blocks around the Colleges, where Hotel Casa 425 sits inside the Village and the DoubleTree by Hilton Claremont is up on West Foothill; north to Victoria Gardens in Rancho Cucamonga for the outdoor restaurant row; or over to the Sheraton at Fairplex in Pomona when an event has the campus busy. None of those is a good flower address. A restaurant table cannot store a vase for three hours, and handing someone an arrangement at the start of a meal means they carry it around all night. The reliable pattern is flowers at home in the afternoon and dinner afterwards — or, for the best version of it, a delivery to the recipient's workplace before five, so they open the card in front of colleagues and drive home already knowing.
For couples who are not going anywhere, which is most of them, Ontario's residential map decides the handoff. The 91762 grid west of downtown holds the city's oldest housing — the streets off Euclid, Vine, Lemon and Palm, where the 1882 Model Colony plan laid out deep lots under street trees and a good number of households have been at the same address for decades. Those are the easiest anniversary deliveries in the city: shaded porches, real front steps, someone usually home. North Ontario in 91764 runs between the Mills and the Rancho Cucamonga line. South and east in 91761 you get Guasti, the industrial grid, and then the Ontario Ranch tracts below Riverside Drive, where the houses are new, the trees are small and the gates are common. A 25th or 50th anniversary in the old grid and a fifth anniversary in a Ranch subdivision are two different delivery problems: the first needs nothing but an address, the second needs a gate code and a cross street.