TL;DR — Cheapest Domestic Flights in Australia
Jetstar offers the cheapest domestic flights in Australia in 2026, with sale fares from AUD 39 (Sydney-Melbourne), AUD 49 (Melbourne-Brisbane), and AUD 79 (Sydney-Perth). Rex is the best mid-range option on regional routes at AUD 79-149 with luggage included. Qantas is the most expensive at AUD 169-349 for the same routes but includes luggage, meals, and Qantas Points. The golden rule for Australian domestic flights: book during Jetstar’s Friday Fare Frenzy sales (typically 12pm AEDT every Friday) for the deepest discounts. Avoid booking less than 2 weeks ahead — last-minute domestic fares are 2-3× the advance purchase price.
Real Domestic Fare Comparison (May 2026)
| Route | Jetstar (Sale) | Jetstar (Typical) | Virgin Australia | Rex | Qantas |
|---|---|---|---|---|---|
| Sydney ↔ Melbourne | AUD 39-59 | AUD 79-129 | AUD 109-169 | AUD 79-119 | AUD 169-249 |
| Sydney ↔ Brisbane | AUD 49-69 | AUD 89-149 | AUD 119-179 | N/A | AUD 179-269 |
| Melbourne ↔ Brisbane | AUD 49-69 | AUD 89-149 | AUD 119-179 | N/A | AUD 179-269 |
| Sydney ↔ Gold Coast | AUD 39-59 | AUD 69-119 | AUD 89-149 | N/A | AUD 149-219 |
| Melbourne ↔ Sydney | AUD 39-59 | AUD 79-129 | AUD 109-169 | AUD 79-119 | AUD 169-249 |
| Sydney ↔ Perth | AUD 79-109 | AUD 149-219 | AUD 179-249 | N/A | AUD 249-349 |
Sale fares are promotional prices during Friday Fare Frenzy and similar sales. Add AUD 25-45 for 20kg checked luggage on Jetstar.
Airline Deep Dives
Jetstar — Cheapest, Most Routes
Jetstar operates the most domestic routes of any Australian low-cost carrier. Base fares are genuinely low — AUD 39 Sydney-Melbourne when booked during sales with 4-6 weeks notice. The add-on pricing model is transparent: luggage (AUD 25-35 for 15-20kg prepaid), seat selection (AUD 5-15), and onboard refreshments (AUD 5-12). A “AUD 39 flight” becomes roughly AUD 70-85 with 15kg checked luggage — still cheaper than any full-service competitor.
Jetstar’s Friday Fare Frenzy (every Friday, typically 12pm AEDT) releases the cheapest domestic fares. Sign up for email alerts and be ready to book quickly — the cheapest AUD 39 Sydney-Melbourne fares often sell out within hours. Jetstar also price-matches: if you find a cheaper fare on the same route within 24 hours of booking, they’ll beat it by 10%.
Rex — Best Regional Airline, Now on Capital City Routes
Rex (Regional Express) entered the Sydney-Melbourne-Brisbane “golden triangle” routes in 2021 and has maintained competitive pricing. Return fares of AUD 158-238 on Sydney-Melbourne with luggage, snacks, and seat selection included undercut Virgin’s typical fare by AUD 30-50. Rex flies Boeing 737s on capital city routes with a 2-2 seating configuration — more spacious than Jetstar’s 3-3 layout. For regional routes (Sydney-Dubbo, Melbourne-Mildura, Adelaide-Port Lincoln), Rex is often the only airline serving the route.
Virgin Australia — Best Full-Service Value
Virgin Australia’s domestic fares include 23kg checked luggage, seat selection, and complimentary tea/coffee/water. At AUD 109-169 for Sydney-Melbourne, Virgin is AUD 30-50 more than Jetstar-with-luggage but offers a better experience: Velocity frequent flyer points, lounge access (for Velocity Gold/Platinum or Lounge members), and a more comfortable seat with 31-inch pitch vs Jetstar’s 29-inch.
Frequently Asked Questions
How far ahead should I book domestic flights?
Best booking window: 4-8 weeks ahead for capital city routes, 3-6 weeks for regional routes. During school holidays (late Dec-Jan, April, July, Sep-Oct), book 8-12 weeks ahead. Less than 2 weeks before departure, expect to pay 2-3× the advance purchase fare — the AUD 39 Sydney-Melbourne fare becomes AUD 129-179.
Is it cheaper to fly or drive between Sydney and Melbourne?
Flying: AUD 39-129 one-way, 1.5 hours flight time + 2 hours airport time = roughly 3.5 hours door-to-door. Driving: roughly AUD 120-180 in fuel (1,000km, 9-10 hours each way). For one person, flying on a sale fare is cheaper and faster. For a family of four, driving is cheaper (AUD 180 fuel vs AUD 156-516 in flights) but takes a full day. The train (NSW TrainLink XPT) costs AUD 79-129 and takes 11 hours — slower than driving and often more expensive than a Jetstar sale fare.
Do I need to check in luggage for a weekend trip?
For a weekend trip, a carry-on bag (7kg on Jetstar, 7kg on Virgin, 7kg on Rex) is usually sufficient — clothes, toiletries, and a laptop for 2-3 days. Jetstar enforces carry-on weight limits more strictly than Virgin or Qantas. If you consistently travel with more than 7kg, Virgin’s included luggage makes it better value than Jetstar + a luggage add-on.
Which airline has the best on-time performance?
Rex consistently leads Australian domestic on-time performance (85-90% on-time departures), followed by Qantas (80-85%), Virgin Australia (78-83%), and Jetstar (72-78%). Jetstar’s lower on-time rate is partly due to its higher aircraft utilisation (more flights per aircraft per day leaves less buffer for delays). For time-critical travel (connecting flights, events), Qantas or Virgin offer more reliable schedules.
Can I use frequent flyer points on cheap domestic flights?
Qantas Points can be redeemed on Jetstar (Qantas-owned) and Qantas domestic flights. Velocity Points work on Virgin Australia. Rex doesn’t operate a frequent flyer programme. During sales, paying cash for a AUD 39 Jetstar fare is better value than redeeming 8,000 Qantas Points (which could be worth AUD 80-120 on an international redemption).
Final Verdict — Cheapest Australian Domestic Flights in 2026
Cheapest overall: Jetstar sale fares from AUD 39 (Sydney-Melbourne/Gold Coast) during Friday Fare Frenzy. Add AUD 25-35 for luggage and the total is AUD 64-94 one-way. Book 4-8 weeks ahead.
Best value: Rex on golden triangle routes at AUD 79-119 with luggage included. More comfortable than Jetstar, cheaper than Virgin.
Search and book domestic Australian flights — Check Trip.com for the best domestic deals{:rel=“nofollow sponsored”}.
Disclosure: This article contains affiliate links. We may earn a commission when you book through Trip.com — at no extra cost to you. Flight prices indicative as of May 2026. Fares change continuously.