Cheap Flights from Denver, CO to Sydney from $748

Return flight: Sydney – Denver

On Cheapflightsplus.com you will find 635 connecting flights from Denver to Sydney. You can compare airfare deals from 22 airlines and multiple travel sites from $748, book and save on cheap plane tickets and last minute offers. Also check out DEN-SYD flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to Sydney Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $748 (one-way), $1283 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Denver to Sydney. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
06:00 — 06:20
+2 days
06:00 — 07:50 UA573 United Airlines
Denver — San Francisco
12h 20m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
30h 20m
including layover
Find flight
from$931
06:05 — 09:05
+2 days
06:00 — 07:34 UA1093 United Airlines
Denver — Los Angeles
15h 1m stop
22:40 — 09:05 UA839 United Airlines
Los Angeles — Sydney
33h
including layover
Find flight
from$1179
07:45 — 06:20
+2 days
07:45 — 09:36 UA2391 United Airlines
Denver — San Francisco
10h 34m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
28h 35m
including layover
Find flight
from$924
07:45 — 09:15
+2 days
07:45 — 09:32 UA2391 United Airlines
Denver — San Francisco
13h 23m stop
22:55 — 09:15 UA863 United Airlines
San Francisco — Sydney
31h 30m
including layover
Find flight
from$1179
08:30 — 09:35
+2 days
08:30 — 10:31 AC8709 Air Canada
Denver — Vancouver
12h 9m stop
22:40 — 09:35 AC33 Air Canada
Vancouver — Sydney
31h 5m
including layover
Find flight
from$943
08:30 — 06:55
+2 days
08:30 — 10:31 AC8709 Air Canada
Denver — Vancouver
9h 34m stop
20:05 — 06:55 AC37 Air Canada
Vancouver — Sydney
28h 25m
including layover
Find flight
from$1058
09:05 — 06:20
+2 days
09:05 — 10:56 UA538 United Airlines
Denver — San Francisco
9h 14m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
27h 15m
including layover
Find flight
from$924
09:53 — 09:35
+2 days
09:50 — 15:02 AC4883 Air Canada
Denver — Toronto
3h 38m stop
18:40 — 09:35 AC33 Air Canada
Toronto — Sydney
29h 42m
including layover
Find flight
from$950
10:15 — 06:20
+2 days
10:15 — 12:04 UA2041 United Airlines
Denver — San Francisco
8h 6m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
26h 5m
including layover
Find flight
from$924
11:33 — 06:20
+2 days
11:33 — 13:23 UA1561 United Airlines
Denver — San Francisco
6h 47m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
24h 47m
including layover
Find flight
from$924
11:48 — 06:55
+2 days
11:48 — 13:58 AC5667 Air Canada
Denver — Vancouver
6h 7m stop
20:05 — 06:55 AC37 Air Canada
Vancouver — Sydney
25h 7m
including layover
Find flight
from$1058
12:45 — 07:00
+2 days
12:45 — 16:16 UA514 United Airlines
Denver — Houston
4h 9m stop
20:25 — 07:00 UA101 United Airlines
Houston — Sydney
24h 15m
including layover
Find flight
from$1019
12:55 — 09:00
+2 days
12:55 — 14:34 AS6745 Alaska Airlines
Denver — Los Angeles
8h 6m stop
22:40 — 09:00 AS6973 Alaska Airlines
Los Angeles — Sydney
26h 5m
including layover
Find flight
from$1025
13:00 — 07:25
+2 days
13:00 — 14:44 QF3005 Qantas
Denver — Los Angeles
6h 36m stop
21:20 — 07:25 QF12 Qantas
Los Angeles — Sydney
24h 25m
including layover
Find flight
from$783
13:34 — 06:20
+2 days
13:34 — 15:25 UA304 United Airlines
Denver — San Francisco
4h 45m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
22h 46m
including layover
Find flight
from$924
15:56 — 09:35
+2 days
15:51 — 18:03 AC3215 Air Canada
Denver — Vancouver
4h 37m stop
22:40 — 09:35 AC33 Air Canada
Vancouver — Sydney
23h 39m
including layover
Find flight
from$943
15:59 — 06:20
+2 days
15:59 — 17:50 UA1300 United Airlines
Denver — San Francisco
2h 20m stop
20:10 — 06:20 UA829 United Airlines
San Francisco — Sydney
20h 21m
including layover
Find flight
from$924
16:05 — 07:25
+2 days
14:09 — 15:38 F93155 Frontier Airlines
Denver — Los Angeles
3h 37m stop
21:20 — 07:25 QF12 Qantas
Los Angeles — Sydney
21h 20m
including layover
Find flight
from$1442
16:26 — 09:00
+2 days
16:18 — 17:58 AS4041 Alaska Airlines
Denver — Los Angeles
4h 37m stop
22:40 — 09:00 AS6973 Alaska Airlines
Los Angeles — Sydney
22h 34m
including layover
Find flight
from$1039
17:20 — 09:15
+2 days
17:20 — 19:11 UA1076 United Airlines
Denver — San Francisco
3h 44m stop
22:55 — 09:15 UA863 United Airlines
San Francisco — Sydney
21h 55m
including layover
Find flight
from$1019
17:40 — 09:35
+3 days
17:40 — 22:52 AC1038 Air Canada
Denver — Toronto
19h 48m stop
18:40 — 09:35 AC33 Air Canada
Toronto — Sydney
45h 55m
including layover
Find flight
from$950
18:00 — 09:35
+2 days
18:00 — 20:01 AC8713 Air Canada
Denver — Vancouver
2h 39m stop
22:40 — 09:35 AC33 Air Canada
Vancouver — Sydney
21h 35m
including layover
Find flight
from$943
18:35 — 07:00
+3 days
18:35 — 21:59 UA1819 United Airlines
Denver — Houston
22h 26m stop
20:25 — 07:00 UA101 United Airlines
Houston — Sydney
42h 25m
including layover
Find flight
from$1194
19:20 — 09:15
+2 days
06:01 — 07:50 UA281 United Airlines
Denver — San Francisco
1h 46m stop
22:55 — 09:15 UA863 United Airlines
San Francisco — Sydney
19h 55m
including layover
Find flight
from$1019
19:45 — 09:05
+2 days
19:45 — 21:19 UA1368 United Airlines
Denver — Los Angeles
1h 13m stop
22:40 — 09:05 UA839 United Airlines
Los Angeles — Sydney
19h 20m
including layover
Find flight
from$1019
20:52 — 07:00
+3 days
20:52 — 00:15 UA2179 United Airlines
Denver — Houston
20h 10m stop
20:25 — 07:00 UA101 United Airlines
Houston — Sydney
40h 8m
including layover
Find flight
from$1194
21:05 — 09:15
+3 days
21:05 — 22:55 UA2190 United Airlines
Denver — San Francisco
24h stop
22:55 — 09:15 UA863 United Airlines
San Francisco — Sydney
42h 10m
including layover
Find flight
from$1196
22:26 — 06:10
+3 days
21:37 — 23:27 F93439 Frontier Airlines
Denver — San Francisco
20h stop
20:15 — 06:10 QF74 Qantas
San Francisco — Sydney
37h 44m
including layover
Find flight
from$1698
*Departure and arrival times - local. Updated on May 13, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Denver to Sydney depends on and how to choose the most interesting flight option for you.

Distance between Denver and Sydney is 13444 miles. Time difference between the cities is 5h. Airplanes depart 00:59 to 23:55 from 2 Denver airports and arrive 00:59 to 23:55 to 5 Sydney airports. Average flight time is 32h 25m.

  • The fastest flight 18h 56m
  • Average flight time 32h 25m
  • The earliest flight 00:59
  • The latest flight 23:55
  • Distance 8354 ml

The cheapest months to travel to Sydney are november (from 748 $), february (from 756 $), january (from 924 $).

The most expensive months are december (from 1 058 $), january (from 924 $), february (from 756 $).

What is the lowest airfare Denver to Sydney?

The cheapest plane ticket found by our users is $748. This airfare is for economy class on one-way F93155 flight by Frontier Airlines for November 13, 2024 which leaves Denver International in Denver at 13:58 am and arrives at Sydney Kingsford Smith at 19:45.

Economy class
$748
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Business class
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First class
?
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Popular Airlines on the Route

The flight Denver — Sydney is served by 22 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Qatar Airways - 11 departures per week at the price of from $ 2304 . And the most expensive tickets are offered by Air Canada airline - from $ 11749.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 635 flights with layovers on the route. The fastest connecting flight is UA1076 by United Airlines takes 18h 56m and the cheapest is F93155 by Frontier Airlines for $748.

  • QR - Qatar Airways
    from $2304
    Find
  • AC - Air Canada
    from $864
    Find
  • JL - Japan Airlines - JAL
    from $2274
    Find
  • FJ - Air Pacific
    from $1392
    Find
  • CI - China Airlines
    from $2033
    Find
  • EK - Emirates
    from $2624
    Find
  • OZ - Asiana Airlines
    from $1528
    Find
  • UA - United Airlines
    from $924
    Find
  • NZ - Air New Zealand Limited
    from $1323
    Find
  • AM - Aeromexico
    from $2186
    Find
  • AS - Alaska Airlines
    from $1025
    Find
  • F9 - Frontier Airlines
    from $748
    Find
See more connecting flights

Airports

You can fly from Denver to Sydney from 2 airports (Denver International, Arapahoe Co).

Denver airports

  • Denver International-DEN
    from $748
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  • Arapahoe Co-APA
    Find

Sydney airports

  • Bankstown-BWU
    Find
  • Palm Beach SPB-LBH
    Find
  • Rose Bay-RSE
    Find
  • Kingsford Smith-SYD
    Find
  • Sydney West-SWZ
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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