A North and South Island road trip means paying for a rental car, insurance excess cover, fuel at about NZ$3.50 a litre, the Cook Strait ferry and a flight back to Auckland – on top of a NZ$100 visitor levy most people don’t expect.
Starts with a sample trip. Change any number to match yours. Set up your travel profile to fill these in for you.
Compare hotels in central Auckland →Tick what you plan to do and we’ll price it for your group. Your picks set “Milford Sound cruise”, “Great Walk hut night” and “Shows, tours and extras you picked” in your budget.
The sample is 2 travelers for 12 nights. Your plan ($5,750) covers the main costs most people budget for, the ones you enter on the left. Costs people forget ($2,822, about 49% more for this trip) are the fees, taxes, tips and extras listed in the calculator. Prices were last checked on October 17, 2026.
Share of the $8,572 real cost. Nights and travelers multiply most of these costs, so changing either one moves the total the most.
12 of this trip's numbers link to a published price or rate. The rest are our estimates, and each one says what it is based on. You can also read how we calculate every trip.
| Cost | Default | Where it comes from |
|---|---|---|
| Airfare per person | $1,200 per traveler | KAYAK shows US–New Zealand round trips averaging about $1,131 (LAX–Auckland about $998); we use $1,200 for a typical trip from a major US airport. Source |
| Hotel per night | $160 a night | KAYAK puts New Zealand 4-star hotels around C$227 (about $165) a night; we use $160 for a good mid-range double. Source |
| Food per person, per day | $55 per traveler, per day | A 2026 New Zealand cost guide puts food at about $55 per person per day with café meals and some takeaways. Source |
| Cost | Default | Where it comes from |
|---|---|---|
| Checked bag fees Off by default | $100 per traveler | Our estimate: Air New Zealand and US airlines include one bag on most economy fares to New Zealand; seat-only fares charge roughly $100 round trip. Our estimate |
| Passports Off by default | $165 per traveler | The State Department lists $165 for a new adult passport book and card application fee plus execution fee. Source |
| NZeTA and visitor levy | $69 per traveler | Immigration New Zealand lists the NZeTA at NZ$17 in the app or NZ$23 online, plus the NZ$100 IVL from 1 October 2024 (NZ$117 ≈ $69). Source |
| Rental car | $55 a day | A 2025 guide puts reputable NZ rentals at NZ$80–200 a day, higher in the Nov–Mar peak; we use NZ$95 (about $55) for a compact. Source |
| Rental excess reduction | $24 a day | Excess reduction typically costs NZ$40–50 a day; Consumer NZ found standard excesses of NZ$4,000+ at major firms. Source |
| Cook Strait ferry with car | $115 per traveler | Rental-company ferry fares for 2026: NZ$224 per vehicle and NZ$83 per adult (low season), NZ$247 and NZ$93 in summer. Source |
| Flight back to Auckland | $100 per traveler | Air New Zealand advertises Queenstown–Auckland from NZ$109 seat-only; about NZ$170 with a bag is our estimate. Source |
| Fuel | $450 for the trip | In October 2026 New Zealand 91 petrol averaged NZ$3.505 a litre (Gaspy); about 2,800 km at 8 L/100 km is roughly NZ$785 (about $450). Source |
| Milford Sound cruise | $80 per traveler | Southern Discoveries’ Milford Sound Nature Cruise lists NZ$179 per adult, with late-2026 deals from NZ$89.50; we use about NZ$140. Source |
| Great Walk hut night Off by default | $78 per traveler | DOC charges international adults NZ$132 a night on the Routeburn and Kepler tracks in summer (Milford Track NZ$152). Source |
| Phone data | $20 per traveler | Our estimate based on typical New Zealand eSIM plans of 5–10 GB for one to two weeks. Our estimate |
| Card fees | 3% of your plan | Typical foreign transaction fee on many US credit and debit cards; no-foreign-fee cards avoid it. Our estimate |
| Shows, tours and extras you picked Off by default | $0 for the trip | Starts at $0. Filled in from what you pick in the things-to-do planner; each one links to its own price source. Our estimate |
| Travel insurance | 6% of your plan | Squaremouth says a comprehensive plan averages about 6% of the trip cost, usually 4% to 10%. Source |
| Pre-trip shopping | $60 for the trip | Our estimate for travel-size toiletries, sunscreen and small things bought before a trip. Our estimate |
| Pet boarding or sitter | $50 a day, if you check Pets | Dogster puts regular kennel boarding at about $35 to $85 a night. Overnight sitters at home cost more. Source |
For 12 nights with flights, a hotel and food, plan on about $5,750 for two people. Once you add the costs most visitors forget, like the NZeTA and visitor levy, a rental car, fuel and the Cook Strait ferry, it's closer to $8,550. Use the calculator above to change any number to match your trip.
Yes. US citizens need an NZeTA before flying, which costs NZ$17 in the official app or NZ$23 on the website, plus the NZ$100 International Visitor Conservation and Tourism Levy charged at the same time. Source
Some companies allow it and some make you swap cars at Wellington and Picton, so check first. A car costs about NZ$224 on the Wellington–Picton crossing plus about NZ$83 per adult. Source
Yes, if you don’t declare it. New Zealand’s biosecurity rules give an instant NZ$400 fine for undeclared fruit, meat, honey and other risk items, so declare anything you’re unsure about or bin it before arrival. Source
Tipping isn’t expected, since service staff earn a full wage. National parks are free to enter for now, but a law passed its first reading in May 2026 to charge international visitors about NZ$20–50 at Milford Sound, Aoraki/Mount Cook, Cathedral Cove and the Tongariro Alpine Crossing, no earlier than summer 2027. Source