AB or ABC? A visitor’s guide to Helsinki’s HSL ticket zones

For most sightseeing within Helsinki, start by checking an AB ticket. Choose ABC when a journey from central Helsinki continues into zone C—most notably for travel between Helsinki Airport and the city centre.

HSL tickets cover geographic zones, not particular vehicles. The same valid ticket works on HSL buses, trams, the Metro, commuter trains and HSL ferries. It must include every zone the route passes through. HSL’s zone guide and Journey Planner show the required ticket for a route.

The quick AB-versus-ABC rule

Your journey	Ticket to check
Within zones A and B, including a journey wholly inside central zone A	AB
From central zone A through B to C	ABC
Between zones B and C without entering A	BC, not ABC
Beyond zone C	Use the Journey Planner; AB and ABC may both be insufficient

There are no A-only or B-only tickets. Even a short trip entirely within zone A requires the minimum two-zone AB ticket. HSL also sells BC for journeys using B and C without A.

Zone boundaries do not simply follow municipal boundaries, so “I am still in Helsinki” is not a reliable way to choose a ticket. Check the origin, destination and suggested route instead.

When AB is enough

AB is the usual choice when both a visitor’s accommodation and planned stops are in zones A and B.

Suomenlinna is a useful example. The fortress and Market Square ferry pier are in zone A, but the minimum-fare rule means the HSL ferry requires an AB ticket. HSL states that any ticket including zone A is accepted and that AB is sufficient for the Market Square–Suomenlinna journey. The ticket also works on other HSL transport while valid (HSL’s Suomenlinna instructions).

Do not assume that every attraction promoted as being in the Helsinki region falls within AB. Enter the named stop or street address in the Journey Planner, particularly for destinations near a zone boundary.

When ABC is necessary

Helsinki Airport is in zone C, while Helsinki Central Railway Station is in zone A. A journey between them passes through A, B and C, so it requires an ABC ticket. This applies to the I and P commuter trains and bus 600 between the airport and central Helsinki; changing the transport mode does not change the zones required. HSL’s airport train guide confirms the ABC requirement.

ABC may also be needed for other journeys beginning in central zone A and reaching zone C. The deciding factor is not whether the destination is the airport or whether it lies in Helsinki, Vantaa or Espoo. It is whether the route uses all three zones.

For a stay based in zones A or B, one practical combination is:

• an ABC single ticket from the airport to the city;
• AB tickets for later sightseeing that stays within A and B;
• another ABC single ticket for the return to the airport.

There is no need to buy ABC coverage throughout a stay solely because the first and last journeys involve the airport. If the accommodation or other planned destinations are in zone C, however, compare ABC single and day tickets for the whole itinerary.

Single ticket or day ticket?

Adult fares checked on 30 October 2026 are:

Ticket area	Single in the HSL app	Contactless single	One-day ticket
AB	€3.30	€3.50	€10.60
ABC	€4.50	€4.80	€12.80

These are HSL’s published 2026 single-ticket prices and day-ticket prices. Check them before travel because fares can change.

At HSL app prices, an AB day ticket costs less than four separate AB singles. An ABC day ticket costs less than three separate ABC singles. Count only the journeys that need each zone combination: an airport transfer followed by several central journeys does not automatically make an ABC day ticket the best choice, especially if the trips fall outside the same 24-hour period.

HSL app day tickets run for consecutive 24-hour periods rather than ending at midnight: one day covers 24 hours, two days 48 hours and so on (HSL’s ticket-validity rules).

HSL says it will introduce a contactless fare cap on 2 November 2026. From that date, several adult single tickets bought within 24 hours with the same contactless payment method should cost no more in total than the day ticket covering those journeys. Travellers using contactless should check HSL’s current single-ticket and fare-cap information, particularly when journeys require different zone combinations.

Transfers and ticket validity

An AB single ticket is valid for 80 minutes and an ABC single for 90 minutes. Transfers between HSL services are included during that period. A passenger may finish a journey on a vehicle boarded while the ticket was valid, even if it expires before that ride ends (HSL’s validity guidance).

For a mobile ticket, make sure it is active before boarding a bus, tram or train. It must also be active before entering the Metro payment area or the Suomenlinna ferry pier. A ticket bought in the HSL app starts immediately unless a later start time is selected.

Contactless payment is available for adult single fares. Select the required zones at the reader and tap a supported payment card, phone or watch; that payment method then acts as the ticket. On buses, trams and trains, use the reader when boarding. For the Metro and ferry, buy the ticket at the reader before entering the payment area (HSL’s contactless instructions).

The reliable way to choose

Plan each unusual or longer outing in HSL’s Journey Planner and follow its ticket recommendation. For a city-centre itinerary, AB is the sensible starting point. Choose ABC when the planned route uses zone C as well—such as a city-centre airport journey—or BC when travelling only between B and C. This avoids both travelling with an invalid ticket and paying for zone A when the route never uses it.