Traveling through a sprawling metropolis with tired children quickly turns a holiday into an endurance test. Underground transit is fast, but it means deep stairwells with a pushchair, crowded commuter carriages and nothing to look at. A well-run open-top bus fixes the seat, the view and the route in one ticket, and families keep buying them even in cities where the same journey by metro costs a fraction of the price.
What decides whether that ticket is worth it is rarely the glossy part. It is the age at which a child stops travelling free, whether the buggy has to be folded before the doors close, how long a full loop takes with a three-year-old on board, and what time the last bus actually leaves.
What actually changes the bill: the free-child band
One number settles most of these decisions before price enters the conversation: the age at which a child stops travelling free. That band, not the headline adult fare, decides what a family of four pays, and it moves by as much as four years between the nine routes below. The bands in the table come from each operator's own tariff page.
Two traps catch families repeatedly. A "family ticket" almost always means exactly two adults and two children, so a third child changes the arithmetic entirely, and several operators cap free places per adult rather than per booking. Free does not always mean automatic either: Edinburgh issues its free child places with the adult ticket, up to three per adult, and Tootbus Paris sells a €0 infant line that has to be added to the basket alongside the adult seats. Two adult tickets and three children at the kerb is the expensive version of that mistake.
Nine family routes compared
Each of the nine routes below runs a genuine hop-on hop-off service, publishes a child policy a family can actually use, and can be booked direct with the operator. Prices are the cheapest adult rate on the operator's own site, and the family column prices two adults plus two children at the listed child fare.
| Tour | City | Adult 24 h from | Free child places | Two adults + two children | What to plan around |
|---|---|---|---|---|---|
| Big Bus London | London, UK | £36.99 | Under 4 | £113.99 family ticket, against £133.96 bought seat by seat | Red Route loop alone runs about 2 h 30 min; one-way Thames cruise included. |
| Big Bus Vienna | Vienna, Austria | €37.00 | Under 5 | €96.00 family ticket, against €118.00 | Two routes only; the Schönbrunn (Blue) line stops at 16:45. |
| City Sightseeing Amsterdam | Amsterdam, Netherlands | €35.00 bus + boat (City Sightseeing Amsterdam rates) | Under 3, two per adult | €70.00 for two adults; ages 4–12 priced per seat | Bus every 25 min, last bus 17:00; boats every 30–45 min. |
| Tootbus Paris Discovery | Paris, France | €44.10 | 0–3 | €112.50 family ticket, against €136.80 | Buses every 8–15 min; last full tour from Opéra at 18:30. |
| Big Bus Singapore | Singapore | US$53.00 | 2 and under | US$196.00, no family ticket | Yellow Line 09:30–17:20; pushchairs must fold on the lower deck. |
| Big Bus Sydney & Bondi | Sydney, Australia | AU$75.00 | Under 3 | AU$205.00 family ticket, against AU$260.00 | Bondi (Blue) Route every 35–45 min; last full circuit 17:00. |
| City Sightseeing Madrid | Madrid, Spain | $37.05 (City Sightseeing Madrid rates) | 0–3 | $101.06 family pack, against $114.52 | Service ends 18:20; no service on 25 December or 1 January. |
| City Sightseeing Edinburgh | Edinburgh, UK | £20.00 (Edinburgh Bus Tours fares) | Up to three children 5–15 per adult | £40.00 for two adults, children free | 75-minute loop; from 1 November the last tour leaves at 15:55. |
| Stromma Copenhagen | Copenhagen, Denmark | DKK 279 | One child under 6 per adult | DKK 558.00 for two adults and two under-6s | Red Line every 45 min, last full tour from Tivoli at 15:35. |
Fare per hour is the honest comparison, because loop lengths differ so much. Edinburgh's £20 buys 75 minutes of riding, about £16 an hour, and Singapore's US$53 buys 90 minutes on the Yellow Line, US$35 an hour. Sydney's AU$75 covers 1 hour 30 on the Red Route, AU$50 an hour, and Copenhagen's DKK 279 covers 1 hour 30 on the Red Line, DKK 186 an hour. London looks like the expensive one at £36.99, but its Red Route loop runs about 2 hours 30 minutes, roughly £15 an hour, and the one-way Thames cruise comes with it.
Ticket tiers punish a late start. Big Bus asks you to pick a start date and requires multi-day passes to be used on consecutive days, so a 48-hour ticket is really two days in a row rather than any two days in a row. Tootbus and Stromma start counting at first validation instead, which suits a late arrival but can leave an afternoon of value you cannot use on the last day.
City by city
London, Paris and Amsterdam
Big Bus London is the easiest of the nine to start from a West End hotel: the Red Route's first bus leaves at 08:42 and the last at 17:12, child seats for ages 4 to 15 cost £29.99 on the Big Bus Tours London ticketing page, and the family rate is in the table above. The one-way Thames cruise that comes with the Discover ticket runs between Tower Pier and Westminster Pier in about 40 minutes, which is a useful mid-afternoon break once the top deck has lost its novelty. Commentary is pre-recorded in seven languages rather than live, and the app's live bus arrivals are the feature families actually use.
Tootbus Paris runs the Discovery route on a 100% electric fleet, and its child channel is written for children rather than translated for them. Child seats for ages 4 to 12 cost €24.30 and infants under four ride free on the Tootbus Paris official booking page. Tickets stay valid for 24, 48 or 72 hours from first validation, buses run every 8 to 15 minutes, and the last full tour leaves stop 1 at Opéra at 18:30. Tootbus also runs a 90-minute Kids Tour on Wednesdays at 14:30 from 23 Boulevard des Capucines, from €28 a seat or €84 for a family of four, with a live guide.
For a pushchair, City Sightseeing Amsterdam's bus-and-boat combination is the one I would pick. The bus loops the outer avenues in a little over an hour while the boats follow the canals for around two, so a tired child can stay in the buggy on the water after a morning on the road. Buses run about every 25 minutes with the last one leaving stop 1 at 17:00, and boats run every 30 to 45 minutes until 17:45. Children up to three travel free, two per paying adult, and ages 4 to 12 need their own seat.
Vienna, Madrid and Edinburgh
Big Bus Vienna has the most generous age policy of the Big Bus cities: children under five ride free and the child band runs to 15, so a five-year-old who pays a child fare in London travels free here. The family bundle covering two adults and two children prices out below four individual seats, and a 48-hour Essential pass starts at €42.30 on the Big Bus Tours Vienna ticket options page. The route reaches Schönbrunn Palace, which is the stop most families actually want, but there are only two lines: the Red Route runs 09:30–16:30 and the Schönbrunn Blue Route 09:45–16:45, so an afternoon arrival gets one circuit at most.
City Sightseeing Madrid spreads 31 stops over three loops – Historic, Modern and Contemporary – and children aged three and under travel free. Seats for ages 4 to 12 cost $20.21, and the adult and family rates are in the table above. The service runs 10:00 to 18:20 and stops completely on 25 December and 1 January. The route passes El Retiro Park and the Prado Museum, so the bus works best as a morning orientation; the art triangle of Prado, Reina Sofía and Thyssen is a walking job afterwards.
Edinburgh Bus Tours runs the CitySightseeing loop, which takes 75 minutes and lets up to three children aged 5 to 15 travel free with each paying adult; the Terry Deary Horrible Histories channel keeps children listening far longer than a standard commentary. The timetable is seasonal, and that matters here. Through the end of October the loop runs until 18:00 every 12 minutes; from 1 November the last tour leaves at 15:55 and the headway stretches to 20 minutes, so a winter city break needs the bus before lunch.
Getting off for the castle is the part to plan. The George IV Bridge stop is not at the gate, and reaching the esplanade means pushing up the steep cobbles of Castlehill. We did that once with a buggy: ten minutes of shoving while a four-year-old walked slower than the pram and the bus pulled away behind us. Next time I would ride to the castle first and walk back down through the Grassmarket with gravity on my side.
Copenhagen, Singapore and Sydney
Stromma covers Copenhagen with three lines on one ticket – the city-centre Red Line, the Green Line to the Home of Carlsberg, and the Purple Line out to Christianshavn and Refshaleøen – across more than 20 stops. Children under six ride free, one per adult, and ages 6 to 15 pay half. The Red Line is the workhorse, running every 45 minutes with the last full tour from Tivoli at 15:35, so the two satellite lines need planning rather than impulse. Buggies are carried at the driver's discretion because the luggage space doubles as the wheelchair bay, and the family-relevant conditions are set out on the Stromma Copenhagen passenger terms page.
The Bus & Boat combination starts at DKK 389 and adds a one-hour Classic Canal Tour from Nyhavn, which covers the harbour side of the city that the bus cannot reach.
Big Bus Singapore works from the Suntec City hub on two loops: the 90-minute Yellow Line linking Marina Bay Sands with the Singapore Botanic Gardens, and the shorter Red Line through Little India and Chinatown. Child seats for ages 3 to 12 cost US$45 and under-twos ride free. Pushchairs must be folded and stowed on the lower deck before the bus moves – boarding the Yellow Line at Suntec City one afternoon, I watched three families fold pushchairs on the kerb while the driver waited; the bay behind him took the first two folded frames, and the third family carried a toddler and a collapsed buggy up the stairs to the top deck. A compact umbrella stroller turns that into a ten-second job.
Big Bus Sydney splits the harbour and the coast: the Red Route does the city and the Blue Route reaches Bondi Beach without a train change at Bondi Junction, which is the reason to buy the ticket at all. Child seats for ages 3 to 15 cost AU$55 and under-threes ride free. The City Tour's last full circuit leaves Phillip Street at 17:00 and the Bondi line runs every 35 to 45 minutes, both listed on the Big Bus Tours Sydney service timetable page.
Strollers, deck access and boarding with a toddler
Every open-top bus reserves its lower-deck open bay for wheelchair users, who have priority over it by law, and drivers generally allow an unfolded pushchair only while the bay is empty. One or two strollers is the realistic limit, and in Copenhagen and Singapore the rule is stricter still: Stromma carries buggies at the driver's discretion, and Big Bus Singapore requires every pram to be folded and stowed before departure. A compact umbrella stroller is worth more on these routes than a travel system.
Keep baby essentials in a small shoulder tote rather than inside the stroller basket. When the driver instructs you to fold your pushchair at a crowded stop, you can collapse the frame instantly without holding up boarding queues.
Weather, headways and the last bus
Exposed top decks are the point and the main risk. Metal plates and vinyl seats get uncomfortably hot under a tropical midday sun, so hats, sunscreen and water matter on Singapore's Yellow Line and Sydney's Bondi run. Edinburgh and Copenhagen have the opposite problem: a sudden shower sends a whole top deck down one narrow staircase to a lower deck that fills within a stop or two.
Headways decide how much of that you can avoid. Central city loops run every 12 to 25 minutes, but the satellite routes are thinner – Sydney's Bondi line every 35 to 45 minutes, Copenhagen's Green and Purple lines only two or three times a day, Vienna's Schönbrunn line stopping at 16:45. We cut it fine on Bondi once: the first bus reached the stop already full, the next was 40 minutes behind it, and a six-year-old spent the wait lying flat on a bench. We made the last full circuit from Phillip Street at 17:00 with minutes to spare.
Where the bus loses: trams, metro passes and walking
Vienna is the clearest case against a sightseeing pass. A 24-hour Wiener Linien ticket costs €9.70 for the whole city network, against €37 for the Big Bus Discover, and the Ringstrasse's 5.3 km of Opera, Hofburg, Parliament and museums can be walked in about an hour. The bus adds the Schönbrunn run and a recorded commentary; it does not add much of Vienna itself.
Copenhagen tells a similar story. A City Pass Small 24-hour ticket costs DKK 100 and covers metro, buses and S-trains in zones 1–4, including the airport, and one adult can take two children under 12 free. The Stromma bus ticket costs nearly three times that and carries one child under six free. The metro reaches Østerport for the Little Mermaid, Christianshavn and Frederiksberg in minutes, though it shows you nothing above ground.
Barcelona is the reminder that official does not mean cheap. The Barcelona Bus Turístic is the city's own sightseeing bus, run with the support of TMB, and a 24-hour adult ticket still costs €33 with child seats for ages 4 to 12 at €18 – close to what the private networks charge.
Walking beats the bus more often than operators admit. Edinburgh's Old Town runs about a mile from the castle to Holyrood, Madrid's three art museums sit in a row on the Paseo del Prado, and Amsterdam's canal ring is smaller than its map suggests. The bus earns its price on the two or three hops that would otherwise be a long uphill walk with a pram, not on the whole day.
Finding the right tour for your family break
If ticket economy with several school-age children is the priority, Edinburgh is the outlier: up to three children ride free with each paying adult, which no other route here matches. For toddlers and preschoolers, Big Bus Vienna keeps under-fives free and runs a short two-line network that is hard to get lost in, and its family bundle makes the second child effectively free.
If long walking is the problem, the land-and-water combinations carry their weight. Big Bus London's Discover ticket includes the Thames cruise, and City Sightseeing Amsterdam swaps the bus for boats on the canal legs, so a child sits down without another ticket queue. For the quietest ride, Tootbus Paris runs an electric fleet, which matters more than it sounds when the bus is also the place a toddler naps.
Two extras to think twice about
Madrid City Tour's night loop is closed until further notice, so do not build an evening around it; the daytime pass is the only reliable part of the offer.
In Paris, the Kids Tour is the extra to pass on if your family does not follow French. The live guide narrates in French only and the tour is non-stop, so there is no hopping off when attention runs out.
The upgrade that does pay is the boat. In London the same-day One Day Ticket costs £32 against £36.99 for the 24-hour Discover, and the difference buys the one-way Thames cruise; in Copenhagen the bus-only ticket becomes a bus-and-boat ticket for another DKK 110. Both turn a bus ride into a half-day out.