From Sydney to Cairns it is between 2,600 and 2,950 km, depending on the source, and about 27 hours of driving not counting stops. Greyhound suggests two weeks with stops. We have not found an official figure for days for the full route.
Distances and hours by section
| Section | Driving | Greyhound coach |
|---|---|---|
| Sydney to Byron Bay | A little over 8 h | — |
| Byron Bay to Brisbane | Under 2 h | — |
| Sydney to Brisbane | — | 17 h, about 1,021 km |
| Brisbane to Airlie Beach | About 11 h | — |
| Airlie Beach to Cairns | About 6 h | — |
| Brisbane to Cairns | — | 30 h, about 1,928 km |
The driving times are from Visit NSW and Tourism Whitsundays. The 27-hour total is our own sum.
The Greyhound distances add up to 2,949 km. The three main roads add up to about 2,620 km: Pacific Highway (790), Pacific Motorway (about 150) and Bruce Highway (1,679). Those three figures come from Wikipedia, because we could not check the Queensland transport website.
How many days does it usually take?
- Driving only: at 5 hours a day, it would be about 6 days in a row. This is our own calculation, with no sightseeing.
- Sydney to Byron Bay: Visit NSW speaks of four days on the Pacific Highway, stopping along the way.
- Full route: the Greyhound itinerary lasts two weeks. It includes two nights in Sydney, two in Byron Bay, two on the Gold Coast, K'gari, two days sailing from Airlie Beach and Cairns.
- The north only: Tourism Australia links a 14-day trip through tropical Queensland, between Cairns and Townsville.
When to go
Peak seasons do not match from south to north, according to Tourism Australia.
| Area | Peak season | Low season | Other information |
|---|---|---|---|
| Sydney | November to February | June to August | Four distinct seasons |
| K'gari | September to November | June to August | Whales from late June to early September. More rain in summer |
| Whitsundays | September to November | January to March | Whales from June to August |
| Cairns and the reef | May to October | November to April | The low season brings heat and rain |
September and October fall in the peak season for all three northern areas and outside the jellyfish season. This is our reading of those dates, not an official statement.
Jellyfish: the swimming question in the north
Surf Life Saving puts the jellyfish season from November to May, although in tropical Queensland they can appear all year. It places the box jellyfish north of Agnes Water and the irukandji north of the southern part of K'gari. That body says to swim only at patrolled beaches.
Stops with information
- Byron Bay: Ballina airport is about 30 minutes from the centre.
- K'gari: it has no bridge and only 4WD vehicles can enter. Ferries take about 30 minutes and leave from River Heads, near Hervey Bay, or from Inskip Point, next to Rainbow Beach.
- Airlie Beach: it is the mainland base for the Whitsundays. Whitsunday Coast airport is about 25 minutes away.
- Cairns: the airport is 5.5 km away. Boats and tours are on its city page.
Can you do it without a car?
- Coach: Greyhound goes from Sydney to Brisbane from A$94, and from Brisbane to Cairns from A$284. It stops at, among others, Noosa, Hervey Bay, Rockhampton, Mackay, Airlie Beach and Townsville.
- Passes: the east coast ones run from A$319 (7 days) to A$561 (60 days). The 30-day pass, for example, works between Melbourne and Cairns, in either direction. Prices seen on 5 November 2026.
- Train to Byron Bay: Sydney to Casino, with a coach on to Byron Bay. It is about 14 hours, according to Visit NSW.
- Train from Brisbane to Cairns: the Spirit of Queensland covers 1,681 km in about 25 hours, with five departures a week. This is from Wikipedia: we could not confirm it on the Queensland Rail Travel website.
More national companies are in services.
Rules of the road
Tourism Australia sums up the general rules: you drive on the left, the alcohol limit is 0.05 and you cannot use a mobile phone while driving. It also asks you to avoid driving at night in rural areas, because of animals.
An overseas licence is valid for up to three months if it is in English. If not, an international permit is needed. That page is written for visitors. If you already live in Australia, check the conditions with the traffic authority in your state: this route crosses New South Wales and Queensland.
Sources
All opened on 5 November 2026.
- Sydney to Brisbane by coach, Greyhound (company)
- Brisbane to Cairns by coach, Greyhound (company)
- Two-week itinerary, Greyhound (company)
- Travel passes, Greyhound (company)
- 30-day pass, Greyhound (company)
- Byron Bay, Visit NSW (official)
- Getting to Airlie Beach, Tourism Whitsundays (official)
- Sydney guide, Tourism Australia (official)
- K'gari guide, Tourism Australia (official)
- Whitsundays guide, Tourism Australia (official)
- Cairns guide, Tourism Australia (official)
- Great Barrier Reef guide, Tourism Australia (official)
- Big road trips, Tourism Australia (official)
- Driving in Australia, Tourism Australia (official)
- Marine stingers, Surf Life Saving Queensland (official)
- Pacific Highway, Wikipedia) (third party)
- Pacific Motorway, Wikipedia) (third party)
- Bruce Highway, Wikipedia (third party)
- Spirit of Queensland, Wikipedia (third party)