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Cheap flights from Denver to Sydney from $461

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Sydney departing on 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Denver to Sydney (DEN-SYD)

Cheap round-trip flights

Logo
11:45 am - 10:30 amDEN-SYD
28h 45m2 stops
Logo
1:55 pm - 5:50 pmSYD-DEN
21h 55m2 stops
$967
Find Deal
mié., nov. 12 - mié., nov. 19
Logo
6:30 am - 12:30 pmDEN-SYD
36h 00m2 stops
Logo
6:00 am - 12:57 amSYD-DEN
36h 57m2 stops
$1,004
Find Deal
lun., nov. 3 - lun., nov. 10
Air New Zealand Logo
3:48 pm - 8:45 amDEN-SYD
22h 57m2 stops
Air New Zealand Logo
11:45 am - 4:07 pmSYD-DEN
22h 22m2 stops
$1,093Air New Zealand
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lun., feb. 9 - mar., feb. 17
Air New Zealand Logo
4:05 pm - 8:45 amDEN-SYD
22h 40m2 stops
Air New Zealand Logo
1:55 pm - 9:55 pmSYD-DEN
26h 00m2 stops
$1,112Air New Zealand
Find Deal
lun., nov. 10 - dom., nov. 23
Air New Zealand Logo
4:05 pm - 8:45 amDEN-SYD
22h 40m2 stops
Air New Zealand Logo
1:55 pm - 9:55 pmSYD-DEN
26h 00m2 stops
$1,113Air New Zealand
Find Deal
mié., nov. 12 - mié., nov. 26
Air New Zealand Logo
3:09 pm - 8:45 amDEN-SYD
23h 36m2 stops
Air New Zealand Logo
1:55 pm - 7:30 pmSYD-DEN
23h 35m2 stops
$1,114Air New Zealand
Find Deal
lun., feb. 9 - lun., feb. 16
Fiji Airways Logo
1:00 pm - 12:30 pmDEN-SYD
29h 30m2 stops
Fiji Airways Logo
2:10 pm - 8:02 pmSYD-DEN
23h 52m2 stops
$1,140Fiji Airways
Find Deal
jue., feb. 5 - mar., mar. 3
Air Canada Logo
11:35 am - 7:20 amDEN-SYD
27h 45m1 stop
Air Canada Logo
9:20 am - 4:33 pmSYD-DEN
23h 13m1 stop
$1,177Air Canada
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mar., sep. 9 - lun., sep. 22
Air Canada Logo
11:24 am - 7:20 amDEN-SYD
27h 56m2 stops
Air Canada Logo
9:20 am - 6:03 pmSYD-DEN
24h 43m2 stops
$1,178Air Canada
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mar., sep. 9 - lun., sep. 22
Alaska Airlines Logo
6:20 pm - 7:45 pmDEN-SYD
32h 25m2 stops
Alaska Airlines Logo
9:40 pm - 12:27 pmSYD-DEN
31h 47m2 stops
$1,188Alaska Airlines
Find Deal
mié., oct. 15 - vie., oct. 31

Air New Zealand flights from Denver to Sydney

Our best Air New Zealand deals on Denver to Sydney flight tickets
Air New Zealand
Feb 9
DEN3:48 pmDenver Intl
22h 57m
2 stops
SYD8:45 amSydney Kingsford Smith
Feb 17
SYD11:45 amSydney Kingsford Smith
22h 22m
2 stops
DEN4:07 pmDenver Intl
$1,093
Find similar
Air New Zealand
Nov 10
DEN4:05 pmDenver Intl
22h 40m
2 stops
SYD8:45 amSydney Kingsford Smith
Nov 23
SYD1:55 pmSydney Kingsford Smith
26h 00m
2 stops
DEN9:55 pmDenver Intl
$1,112
Find similar
Air New Zealand
Nov 12
DEN4:05 pmDenver Intl
22h 40m
2 stops
SYD8:45 amSydney Kingsford Smith
Nov 26
SYD1:55 pmSydney Kingsford Smith
26h 00m
2 stops
DEN9:55 pmDenver Intl
$1,113
Find similar

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets
Air Canada
Sep 9
DEN11:35 amDenver Intl
27h 45m
1 stop
SYD7:20 amSydney Kingsford Smith
Sep 22
SYD9:20 amSydney Kingsford Smith
23h 13m
1 stop
DEN4:33 pmDenver Intl
$1,177
Find similar
Air Canada
Sep 9
DEN11:24 amDenver Intl
27h 56m
2 stops
SYD7:20 amSydney Kingsford Smith
Sep 22
SYD9:20 amSydney Kingsford Smith
24h 43m
2 stops
DEN6:03 pmDenver Intl
$1,178
Find similar
Air Canada
Sep 16
DEN11:24 amDenver Intl
27h 56m
2 stops
SYD7:20 amSydney Kingsford Smith
Oct 6
SYD10:20 amSydney Kingsford Smith
24h 43m
2 stops
DEN6:03 pmDenver Intl
$1,182
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated agosto 26, 2025.
Use the filters below to find and compare flights from Denver to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mié. 11/12

11:45 am-10:30 am

2 stops28h 45m

Sydney Kingsford Smith

mié. 11/19

1:55 pm-5:50 pm

2 stops21h 55m

$967

DenverSydney

DEN - SYD

DENSYD

Denver Intl

lun. 11/3

6:30 am-12:30 pm

2 stops36h 00m

Sydney Kingsford Smith

lun. 11/10

6:00 am-12:57 am

2 stops36h 57m

$1,004

DenverSydney

DEN - SYD

DENSYD

Denver Intl

lun. 2/9

3:48 pm-8:45 am

2 stops22h 57m

Sydney Kingsford Smith

mar. 2/17

11:45 am-4:07 pm

2 stops22h 22m

$1,093

DenverSydney

DEN - SYD

DENSYD

Denver Intl

lun. 11/10

4:05 pm-8:45 am

2 stops22h 40m

Sydney Kingsford Smith

dom. 11/23

1:55 pm-9:55 pm

2 stops26h 00m

$1,112

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mié. 11/12

4:05 pm-8:45 am

2 stops22h 40m

Sydney Kingsford Smith

mié. 11/26

1:55 pm-9:55 pm

2 stops26h 00m

$1,113

DenverSydney

DEN - SYD

DENSYD

Denver Intl

lun. 2/9

3:09 pm-8:45 am

2 stops23h 36m

Sydney Kingsford Smith

lun. 2/16

1:55 pm-7:30 pm

2 stops23h 35m

$1,114

DenverSydney

DEN - SYD

DENSYD

Denver Intl

jue. 2/5

1:00 pm-12:30 pm

2 stops29h 30m

Sydney Kingsford Smith

mar. 3/3

2:10 pm-8:02 pm

2 stops23h 52m

$1,140

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mar. 9/9

11:35 am-7:20 am

1 stop27h 45m

Sydney Kingsford Smith

lun. 9/22

9:20 am-4:33 pm

1 stop23h 13m

$1,177

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mar. 9/9

11:24 am-7:20 am

2 stops27h 56m

Sydney Kingsford Smith

lun. 9/22

9:20 am-6:03 pm

2 stops24h 43m

$1,178

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mié. 10/15

6:20 pm-7:45 pm

2 stops32h 25m

Sydney Kingsford Smith

vie. 10/31

9:40 pm-12:27 pm

2 stops31h 47m

$1,188

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Denver to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, April is the cheapest month to fly from Denver to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $872. If you are unable to visit Sydney during the month of April, then departing from Denver during the month May is also very affordable. Most momondo users find prices during this month for around $879.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Denver to Sydney is on a Tuesday when prices can be found for as low as $1,197. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,362.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from Denver to Sydney at noon for as low as $933. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,292. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,082 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Denver for as low as $945 on momondo.

How have Denver to Sydney flight prices changed over time?

As of August 2025, prices for Denver to Sydney flights are approximately 47% cheaper when compared to flights at the same time last year.

When to book flights from Denver to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Sydney (DEN to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Sydney

Direct flights

None
There are no direct flights from Denver to Sydney. There are no popular flight routes from Denver to Sydney.
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  • How far is Denver Intl to Sydney Kingsford Smith by plane?

    Denver Intl and Sydney Kingsford Smith are 8325.4 mi apart from one another. A reasonable flight in good conditions will take 20h 15m.

  • When did momondo last update prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport are updated daily.

  • How many operators does momondo search for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Denver Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Denver to Sydney?

Best airlines flying from Denver to Sydney

Compare and see reviews for airlines that fly from Denver to Sydney with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $745Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $801Free CancellationRating
7.5
904 reviews
Search Qantas Airways flights
DeltaPriceFrom $830Free CancellationRating
7.9
7,979 reviews
Search Delta flights
American AirlinesPriceFrom $832Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
8.0
505 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $1,009Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,260Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Randwick
Coogee
Cronulla
Lithgow
Penrith
Manly
Leura
Charlestown
Swansea
Terrigal

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Sydney?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from Denver.

Can I find flights from Denver to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Denver with this policy.

How can momondo help me find flights from Denver to Sydney?

Once you have performed a search for Denver to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Denver to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Denver to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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