Adelaide to Sydney ADL → SYD
Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD)
The cheapest return found recently is $218 with Jetstar, 20 Dec – 28 Jan 2027, found yesterday. The cheapest one-way found recently is $104 with Jetstar, 9 Sept 2027, found 2 days ago.
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$218
20 Dec – 28 Jan 2027 · Jetstar
Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 7:40 p.m. · Return leaves 12:25 p.m. · 4 h 5 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Cheapest nonstop return
$218
20 Dec – 28 Jan 2027 · Jetstar
Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 7:40 p.m. · Return leaves 12:25 p.m. · 4 h 5 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Found recently, and the cheapest we hold
$218 20 Dec – 28 Jan 2027found yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $169 to $233.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 39-night return fares leaving within 3 days of 20 Dec to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Dec – 28 Jan 2027 | $218 | Jetstar | Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) | out nonstop, back nonstop | found yesterday | See prices for these dates |
Airlines on the cheapest dates: Jetstar.
One-way
The cheapest one-way fare on each of 5 departure dates is usually $111 to $139.
Cheapest one-way found recently
$104
9 Sept 2027 · Jetstar
Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 9:15 a.m. · 1 h 55 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$104
9 Sept 2027 · Jetstar
Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD)
Leaves 9:15 a.m. · 1 h 55 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$104 9 Sept 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $59 to $100.
At $104, the cheapest one-way found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 5 departure dates from 29 Oct to 9 Sept 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 9 Sept 2027, and it is not cheaper.
Every date we hold
5 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Oct | $139 | Jetstar | Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) | nonstop | found 5 days ago | Open this trip |
| 31 Oct | $111 | Jetstar | Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) | nonstop | found 6 days ago | Open this trip |
| 13 Dec | $126 | Virgin Australia | Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) | nonstop | found 5 days ago | Open this trip |
| 7 Sept 2027 | $141 | Virgin Australia | Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) | nonstop | found 6 days ago | Open this trip |
| 9 Sept 2027 | $104 | Jetstar | Adelaide Airport (ADL) → Sydney (Kingsford Smith) Airport (SYD) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
September 2027 is the cheapest month — from $104.
Airlines on the cheapest dates: Jetstar, Virgin Australia.
Premium cabin fares from Adelaide to Sydney
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 20 Dec – 28 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 9 Sept 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Adelaide to Sydney?
Return
Fares 60 to 89 days before departure were typically 44% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $331 | $212 | +78% | 11 |
| 7–13 days | $244 | $196 | +31% | 13 |
| 14–29 days | $212 | $196 | +14% | 17 |
| 60–89 days | $186 | $169 | Cheapest seen | 15 |
| 90–179 days | $224 | $202 | +20% | 14 |
| 180+ days | $254 | $203 | +36% | 18 |
One-way
Fares 30 to 59 days before departure were typically 22% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $102 | $90 | +28% | 22 |
| 7–13 days | $104 | $91 | +30% | 23 |
| 14–29 days | $91 | $59 | +14% | 19 |
| 30–59 days | $80 | $63 | Cheapest seen | 22 |
| 60–89 days | $99 | $61 | +24% | 23 |
| 90–179 days | $99 | $71 | +24% | 17 |
| 180+ days | $102 | $79 | +28% | 24 |
Live price for these dates
The cheapest return found recently is for 20 Dec – 28 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work