Cheap flights from Adelaide to Sydney from $136 ADL → SYD, WSI

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $169 to $233.

At $251, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 2-night return fares leaving within 3 days of 5 Mar 2027 to compare.

Every date we hold

38 fares on 4 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $189.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $59 to $103.

At $136, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

Yes. Among one-way fares leaving within 3 days of 21 Nov, 18 Nov costs $103: $33 less than the cheapest found recently.

Jetstar · Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) · nonstop · found 5 days ago

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Every date we hold

10 fares on 8 departure dates

Which month looks cheapest?

September 2027 is the cheapest month — from $100.

Return

Fares 30 to 59 days before departure were typically 25% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 180 or more days before departure were typically 11% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Adelaide to Sydney?

The cheapest return found recently is $251 with Jetstar, 5 Mar 2027 to 7 Mar 2027, found 3 days ago. The cheapest return we hold, of any age, is $189 with Jetstar, 18 Dec to 9 Jan 2027, found 6 days ago. The cheapest return fare on each of 4 departure dates is usually $233 to $255.

How much is a one-way flight from Adelaide to Sydney?

The cheapest one-way found recently is $136 with Jetstar, 21 Nov, found 2 days ago. The cheapest one-way we hold, of any age, is $100 with Jetstar, 18 Sept 2027, found 5 days ago. The cheapest one-way fare on each of 8 departure dates is usually $108 to $142.

What is the cheapest month to fly from Adelaide to Sydney?

December 2026 is the cheapest month for a return, from $189, 18 Dec to 9 Jan 2027, found 6 days ago. September 2027 is the cheapest month for a one-way, from $100, 18 Sept 2027, found 5 days ago.

How far ahead should I book a flight from Adelaide to Sydney?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 25% lower than 0 to 6 days before departure. One-way fares 180 or more days before departure were typically 11% lower than 0 to 6 days before departure.

Is there a direct flight from Adelaide to Sydney?

Yes, the cheapest nonstop return found recently is $251 with Jetstar, 5 Mar 2027 to 7 Mar 2027, found 3 days ago. The cheapest nonstop one-way found recently is $136 with Jetstar, 21 Nov, found 2 days ago.

How long is the flight from Adelaide to Sydney?

The cheapest nonstop one-way found recently, with Jetstar on 21 Nov, takes 2 h from Adelaide Airport (ADL) to Sydney (Kingsford Smith) Airport (SYD).

Which airlines have the cheapest flights from Adelaide to Sydney?

Between 30 Nov and 5 Mar 2027, Jetstar has the cheapest return on 3 of the 4 departure dates we hold, and Virgin Australia on 1. Between 18 Nov and 18 Sept 2027, Jetstar has the cheapest one-way on 7 of the 8 departure dates we hold, and Virgin Australia on 1.