Cheap Flights from St Louis to Adelaide
No deal from St Louis to Adelaide has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from St Louis to Adelaide, the lowest round-trip fare we recorded was $1296, in September. The typical fare was $1374. September was the cheapest month we saw and July the dearest.
The most recent price we saw on this route was $1822 on Jetstar and United, seen Oct 16. It is an unverified observation and may have changed.
See every deal <a href="/from/st-louis">from St Louis</a>, <a href="/to/adelaide">to Adelaide</a>, or the return direction <a href="/from/adelaide/to/st-louis">Adelaide to St Louis</a>.
Latest price we saw: St Louis to Adelaide
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| St Louis (STL) to Adelaide (ADL) | $1822 | 9.3¢ | Dec 7 – Dec 14 | Jetstar and United | Oct 16 | Check price |
Price history: St Louis to Adelaide
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $1352 | $1446 | 6 |
| Sep 2026 | $1296 | $1328 | 18 |
| Aug 2026 | $1296 | $1346 | 28 |
| Jul 2026 | $1378 | $1378 | 1 |
Frequently asked questions
How many flight deals from St Louis to Adelaide are on Sparkflights right now?
There are 0 verified deals from St Louis to Adelaide on the board right now. The list refreshes hourly.
What is the lowest price ever seen from St Louis to Adelaide?
The lowest fare we've recorded from St Louis to Adelaide is $1296, based on 53 price observations over 4 months.
How much does a flight from St Louis to Adelaide cost?
The typical round-trip fare we observed from St Louis to Adelaide is $1374, against a recorded low of $1296. These are observations, not quotes.
When is the cheapest month to fly St Louis to Adelaide?
September was the cheapest month we observed from St Louis to Adelaide and July the dearest, over 4 months of data.
What is the current price from St Louis to Adelaide?
The most recent fare our sweep saw from St Louis to Adelaide is $1822, on Oct 16. It is an unverified observation rather than a verified deal, so check it before booking.