Frontier Airlines
Flights from Denver to Sydney
DEN SYD · Australia
From
£1,488
return · 1 adult · economy
Operated by
Frontier Airlines
Shortest outbound
See live offers
Direct option
No (connecting only)
Live offers
Sample sail-date: 2026-10-10 outbound · 2026-10-17 return. Prices refresh daily.
- DEN19:1608:20SYD—2 stops· United AirlinesReturn10:20 → 16:581 stop · 23h 38m£1,488Book on search →
- DEN19:1608:20SYD—2 stops· United AirlinesReturn10:20 → 18:181 stop · —£1,488Book on search →
- DEN19:1608:20SYD—2 stops· United AirlinesReturn10:20 → 23:081 stop · —£1,488Book on search →
Frequently asked questions
- How long is a flight from Denver to Sydney with Frontier Airlines?
- Flight duration varies by routing. Use the live search to see current direct and connecting options.
- Does Frontier Airlines fly direct from DEN to SYD?
- Not on these sample dates — the cheapest offers we see are connecting flights. Direct service may exist on other dates.
- How much does a Frontier Airlines ticket from DEN to SYD cost?
- The cheapest return economy fare we found today is £1,488 for 1 adult, based on sample dates 2026-10-10 → 2026-10-17. Prices change daily — run the live search for current fares.