Paris, London, and Tokyo for Less

The Louvre, the largest museum on earth by gallery space, is free after 6 p.m. on the first Friday of nearly every month, October through March. The museum confirms the schedule directly: nine free Fridays in 2026, plus July 14 in years the date doesn't land on the museum's Tuesday closure. Book a timed slot ahead of time, since free does not mean walk-up.

The Musée d'Orsay and the Musée de l'Orangerie run the same play on a different day.Both are free on the first Sunday of the month, no age restriction, no membership required. Reserve the slot the moment it opens. Free Sundays are popular, and popular in a museum with one entrance means a line.

Lunch is where Paris quietly punishes anyone eating like a tourist. A sit-down brasserie near a major sight charges accordingly. A jambon-beurre, the ham-and-butter sandwich Parisians actually eat, runs €4 to €7 at a proper boulangerie, about $5 to $8. Carry it to a bench in the Tuileries or the Jardin du Luxembourg and the view comes for free.

None of this requires giving up the parts of Paris that justify the flight. It just means timing two museum visits around a Friday evening and a Sunday morning, and eating lunch the way the person next to you on the Métro does can save you a few bucks.

London's reputation for being punishingly expensive is mostly about beds and pints. But the museums. The British Museum, the National Gallery, Tate Modern, Tate Britain, the V&A, the Natural History Museum, and the Science Museum areall free to enter, permanent collections included, no donation required at the door. Book a free timed slot for the British Museum in peak season. The rest generally take walk-ins.

Getting between them costs less than most visitors think. Tap a contactless card at the Tube gate andthe fare automatically caps at £8.90 a day for Zones 1 and 2, the zones that cover nearly everything a first-time visitor wants to see. There's no card to buy, no top-up to calculate, and no benefit to figuring out the "right" ticket type.

Lunch is a supermarket meal deal, not a sit-down affair, if the goal is stretching the day's budget toward a West End ticket instead of a sandwich.Tesco's meal deal runs £3.85 with a Clubcard, about $5.25, or £4.25 without one: a main, a snack, and a drink for less than a single coffee at most tourist-area cafes.

That West End ticket is more reachable than the box office price suggests, too. The Official London Theatre Ticket Booth in Leicester Square, the operation everyone still calls TKTS, sells same-day and near-term tickets at up to 50% off. It's run by the nonprofit that represents the theatre industry itself, not a resale markup dressed up as a deal. Free galleries all day, a capped Tube fare, a meal deal lunch, and a half-price show at night adds up to a full London day for less than one dinner at a Covent Garden tourist trap.

Tokyo's most photographed skyline view costs nothing, which surprises people who assume every observation deck in the city charges Skytree money. TheTokyo Metropolitan Government Building's twin observation decks, 202 meters up in Shinjuku, are free, no ticket, no reservation. Mount Fuji shows up on a clear day and so does the Skytree.

Transit runs on a similar logic once you know which pass to buy. TheTokyo Subway Ticket covers unlimited rides on all 13 Tokyo Metro and Toei Subway linesfor ¥1,000, ¥1,500, or ¥2,000 (roughly $6.30, $9.40, or $12.60) across 24, 48, or 72 hours from first use. A single day bouncing between Asakusa, Ginza, and Shibuya covers the cost after four or five rides, and most sightseeing days clear that easily.

Where you sleep is where you save the most. A room at Toyoko Inn, Japan's largest budget business hotel chain, starts around ¥5,500 a night including breakfast, about $35, private bathroom included, no shared dorm required. Base yourself in Asakusa or Ueno rather than Shinjuku or Ginza, andexpect rooms running 20 to 30% cheaper for comparable quality, with the side benefit of beating the tour buses to Senso-ji.

Stack that lodging choice on top of the transit pass and a free 202-meter view, and a week in Tokyo starts looking like a week in a mid-size American city, minus the rental car.

None of this matters much if the flight blows the budget before the trip starts. Fares to all three cities move constantly, and setting a fare alert through Airfarewatchdog before booking catches the drops that manual searching misses. Paris, London, and Tokyo will always show up near the top of the world's priciest-city lists. Knowing where the free stuff lives is what makes the trip affordable anyway.