Find Cheap Flights from Denver International to Sydney Kingsford Smith (DEN - SYD)

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Good to Know

Low Season:
August
Best time to beat the crowds
4%
expected price decrease
High Season:
December
Most popular time to fly
16%
expected price increase
Average Price:
$1941
(avg. price over the last 2 weeks)
Good Deal:
$1151
or less (round trip)

When to Book Flights from Denver International to Sydney Kingsford Smith

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $1151 or less.
The cheapest flight from Denver International to Sydney Kingsford Smith was found 81 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
Morning departure is around 12% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Denver International to Sydney Kingsford Smith Flights

How long does a flight from Denver International to Sydney Kingsford Smith take?
An average nonstop flight takes 21h 57m, covering a distance of 8354 miles.
Which airlines provide the cheapest flights from Denver International to Sydney Kingsford Smith?
In the past 3 days, the cheapest round-trip tickets were found on Qantas Airways ($772), Multiple Airlines ($951) and Virgin Australia ($1245).
Do I need a passport to fly between Denver International and Sydney Kingsford Smith?
Yes.
What’s the cheapest day of the week to fly Denver International to Sydney Kingsford Smith?
For Denver International to Sydney Kingsford Smith, Monday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Sydney Kingsford Smith back to Denver International, the best deals are generally found on Friday, with Tuesday being the most expensive.

Book cheap flights from Denver International to Sydney Kingsford Smith (round-trip)

Airports
Origin
Denver
$772
only
$772
Destination
Sydney
$772
only
$772
Mon, Jun 4
DEN
SYD
23h 50m
Tue, Jun 19
SYD
DEN
19h 19m
Trip: 16 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
SYD
LAX
Excellent 10.0

All the food. Service was good.

There was a delay but they didn't explain what was going on. I overheard that there was a threat.

JNB
SYD
Excellent 8.0

On time departing and arriving.Flight attendants pleasant.

Nothing...was a great flight

SYD
DFW
Good 7.6

Crew, food and entertainment were good.

Still cramped esp when front seat reclines. Seats are very uncomfortable by end of flight.

LAX
BNE
Good 7.6

The crew was great and attentive.

I'm not sure why we needed to bus to the plane at LAX but it caused and over 1 hour delay for take off.

LAX
MEL
Excellent 8.6

Overall it was an excellent flight, delicious food, wonderful crew and flight mainly smooth.

To get to the gate for boarding was like going from Terminal 2 to Terminal 7 too far for many people to walk and to eventually find when you are not familiar with the airport, thought for a minute Qantas had not paid their airport duties.

Wed, Feb 21
DEN
SYD
35h 37m
Thu, Mar 8
SYD
DEN
26h 37m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jul 9
DEN
SYD
22h 50m
Thu, Aug 9
SYD
DEN
39h 02m
$1245
Trip: 32 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 2143 reviews
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
7.3
Food
7.2
SYD
LAX
Excellent 10.0

We were pleasantly surprised by the legroom for the regular economy seats. We usually opt extra legroom because my husband is 6'4" but he was very comfortable on this flight. We fly often and on many different airlines, but Virgin always stands out for exceptional service, modern and clean planes (continuously attended to throughout the flight), better meals, friendly staff, extensive entertainment options...definitely one of the best overhaul international flights we've had.

The check-in procedure at Sydney Airport was a bit of a nightmare. Even the people who had checked in online had to wait in line (for 30 minutes-1 hour) to get boarding pass and check bags. We had carry-on bags only and still had to do this. I understand they need to recheck everyone's documents since the flight was headed to the US, but the available counters and process for moving customers along was very slow. Other than that, we had an excellent 5* star experience.

MEL
LAX
Mediocre 3.6

Difficultly making pre flight seating arrangements and checking in. Food was terrible compared to other airline food standards. Service was not friendly compared to prior virgin flights.

LAX
SYD
Okay 5.6

When my passport was renewed, for whatever reason my visa didn’t update. The person at the gate offered to help with the renewal — or said I could do it myself. Since it came down to part of the boarding process, I had her do it. It took about two minutes and she charged me $20 extra for the $20 visa. Your strength is supposed to be customer service. Really? On the plane, the seat bottom had nearly no padding for a 14-hour flight. I sat on the small provided sleeping pillow part of the way.

MEL
SYD
Excellent 10.0

A+

SYD
MEL
Excellent 9.6

Gate crew gave us extra seats to spread out and flight was around comfortable. Really enjoyed in-flight TV options

We normally love to check prices on KAYAK and then book directly through airlines which we thought we were doing in this incident. But after we booked we realized a third-party website – Webjet- would be handling our tickets which resulted in many problems. We ended up needing to change our itinerary in a simple way that would’ve been easy to do through the airline but webjet would not accommodate without spending $2500 in ticket fees. To avoid that we had to book additional tickets and take an additional flight that ended up being cheaper but quite the hassle that took way longer

Tue, Jul 3
DEN
SYD
24h 45m
Tue, Jul 24
SYD
DEN
27h 22m
$1310
Trip: 22 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27267 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CMH
DCA
Mediocre 2.0

Never knew flying domestically with a company named American would be so impossible. A true joke. Never had such difficulties traveling about. Super unsatisfiee and will not be traveling with them again. I urge everyone considering to purchase other airlines as well.

GRU
LIM
Good 7.0

Entertainment, crew

Several flights were delayed and canceled on last minute.

LAX
AKL
Excellent 8.3

New plane, great crew on board.

seats were hard especially for a 13 1/2 hour flight.

PHL
ORD
Mediocre 2.0

The baggage customer service said the crew will wait for us, but they never did. THANKS for NOTHING!

DFW
MSY
Excellent 10.0

Travel time

No snacks on flight. The charging stations come in between legs space and very uncomfortable they got to be re adjusted. Make sure these are taken care in upcoming flights.

Mon, Mar 26
DEN
SYD
24h 05m
Tue, Apr 3
SYD
DEN
19h 16m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
LAX
BNE
Good 7.6

The crew was great and attentive.

I'm not sure why we needed to bus to the plane at LAX but it caused and over 1 hour delay for take off.

LAX
MEL
Excellent 8.6

Overall it was an excellent flight, delicious food, wonderful crew and flight mainly smooth.

To get to the gate for boarding was like going from Terminal 2 to Terminal 7 too far for many people to walk and to eventually find when you are not familiar with the airport, thought for a minute Qantas had not paid their airport duties.

MEL
LAX
Excellent 9.3

Very friendly and attentive crew. Varied entertainment options, including a selection of Australian films. Good food!

Cramped seats. There is no need for air travel to be so miserable in terms of legroom.

SYD
LAX
Excellent 10.0

All the food. Service was good.

There was a delay but they didn't explain what was going on. I overheard that there was a threat.

SYD
SFO
Good 6.0

Economy seats were comfy.

Food was terrible! Literally inedible.

Mon, Apr 2
DEN
SYD
24h 05m
Wed, Apr 4
SYD
DEN
19h 16m
Trip: 3 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
SYD
DFW
Good 6.6

Were able to create an allergy friendly meal for my daughter on board, even though the information we called and provided ahead of time was lost.

Economy class seats are too cramped for such long haul flights.

MEL
LAX
Mediocre 2.3

Really nothing.

Boarding was slow and people were standing in line for ages before they started to let passengers board. Once boarded, flight was delayed over an hour so we just sat there on the plane. We were sitting in the last row where extremely cold air was just blowing directly at us the entire flight! We asked a few members of the crew including the manager and were told that that's what happens when you're close to the door. It was the MOST UNCOMFORTABLE flight of my life!!! I will never fly Qantas again. They were a complete nightmare and definitely the low point of our wonderful vacation.

MEL
LAX
Excellent 9.3

Very friendly and attentive crew. Varied entertainment options, including a selection of Australian films. Good food!

Cramped seats. There is no need for air travel to be so miserable in terms of legroom.

LAX
SYD
Mediocre 2.6

Cabin crew was ok.

Ground staff was terrible. Boarding took forever. Plane was dirty. Blanket had stains on them. Overall, just disgusting. I was afraid to touch anything on the plane. I took photos to document.

SYD
LAX
Excellent 10.0

All the food. Service was good.

There was a delay but they didn't explain what was going on. I overheard that there was a threat.

Thu, Jun 7
DEN
SYD
23h 50m
Mon, Jun 18
SYD
DEN
27h 52m
Trip: 12 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
SYD
DFW
Good 6.6

Were able to create an allergy friendly meal for my daughter on board, even though the information we called and provided ahead of time was lost.

Economy class seats are too cramped for such long haul flights.

SYD
JFK
Good 6.0

The wide selection of free movies and TV shows. The food is tasty!

Our first flight to LAX was delayed by 7 hours so we spent the day in Sydney airport, spending more money on meals that hadn’t been planned. Because of the delay, we missed our connecting flight from LAX to JFK. The flight we were re-booked on was also delayed for mechanical/paperwork issues so we arrived back home in NYC 8 hours later than originally scheduled. This caused us to spend more money on a taxi since it was too late to take public transportation. it also made it difficult to settle back in at home because both my husband and I had to get up early for work the next day and we missed several hours of unpacking and cooking time we would have had had our flight not been delayed.

LAX
BNE
Good 7.6

The crew was great and attentive.

I'm not sure why we needed to bus to the plane at LAX but it caused and over 1 hour delay for take off.

JNB
SYD
Excellent 8.0

On time departing and arriving.Flight attendants pleasant.

Nothing...was a great flight

MEL
LAX
Excellent 9.3

Very friendly and attentive crew. Varied entertainment options, including a selection of Australian films. Good food!

Cramped seats. There is no need for air travel to be so miserable in terms of legroom.

Wed, Mar 7
DEN
SYD
25h 36m
Wed, Mar 21
SYD
DEN
25h 53m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 8
DEN
SYD
28h 01m
Fri, Feb 16
SYD
DEN
41h 18m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 12
DEN
SYD
23h 55m
Sat, May 5
SYD
DEN
24h 45m
Trip: 24 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
SYD
DFW
Good 6.6

Were able to create an allergy friendly meal for my daughter on board, even though the information we called and provided ahead of time was lost.

Economy class seats are too cramped for such long haul flights.

LAX
BNE
Good 7.6

The crew was great and attentive.

I'm not sure why we needed to bus to the plane at LAX but it caused and over 1 hour delay for take off.

SYD
SFO
Good 6.0

Economy seats were comfy.

Food was terrible! Literally inedible.

SYD
DFW
Good 7.6

Crew, food and entertainment were good.

Still cramped esp when front seat reclines. Seats are very uncomfortable by end of flight.

SYD
LAX
Excellent 10.0

All the food. Service was good.

There was a delay but they didn't explain what was going on. I overheard that there was a threat.

Tue, May 8
DEN
SYD
21h 57m
Tue, May 22
SYD
DEN
19h 19m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
LAX
MEL
Excellent 8.6

Overall it was an excellent flight, delicious food, wonderful crew and flight mainly smooth.

To get to the gate for boarding was like going from Terminal 2 to Terminal 7 too far for many people to walk and to eventually find when you are not familiar with the airport, thought for a minute Qantas had not paid their airport duties.

MEL
LAX
Excellent 9.3

Very friendly and attentive crew. Varied entertainment options, including a selection of Australian films. Good food!

Cramped seats. There is no need for air travel to be so miserable in terms of legroom.

SYD
LAX
Excellent 10.0

All the food. Service was good.

There was a delay but they didn't explain what was going on. I overheard that there was a threat.

LAX
BNE
Good 7.6

The crew was great and attentive.

I'm not sure why we needed to bus to the plane at LAX but it caused and over 1 hour delay for take off.

SYD
DFW
Good 6.6

Were able to create an allergy friendly meal for my daughter on board, even though the information we called and provided ahead of time was lost.

Economy class seats are too cramped for such long haul flights.

Thu, Jan 25
DEN
SYD
33h 35m
Sat, Feb 10
SYD
DEN
29h 21m
$1222
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 23
DEN
SYD
24h 15m
Fri, Apr 6
SYD
DEN
23h 40m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2967 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.9
Food
7.6
MEL
LAX
Mediocre 2.3

Really nothing.

Boarding was slow and people were standing in line for ages before they started to let passengers board. Once boarded, flight was delayed over an hour so we just sat there on the plane. We were sitting in the last row where extremely cold air was just blowing directly at us the entire flight! We asked a few members of the crew including the manager and were told that that's what happens when you're close to the door. It was the MOST UNCOMFORTABLE flight of my life!!! I will never fly Qantas again. They were a complete nightmare and definitely the low point of our wonderful vacation.

MEL
LAX
Excellent 9.3

Very friendly and attentive crew. Varied entertainment options, including a selection of Australian films. Good food!

Cramped seats. There is no need for air travel to be so miserable in terms of legroom.

SYD
DFW
Good 6.6

Were able to create an allergy friendly meal for my daughter on board, even though the information we called and provided ahead of time was lost.

Economy class seats are too cramped for such long haul flights.

LAX
BNE
Good 7.6

The crew was great and attentive.

I'm not sure why we needed to bus to the plane at LAX but it caused and over 1 hour delay for take off.

SYD
LAX
Excellent 10.0

All the food. Service was good.

There was a delay but they didn't explain what was going on. I overheard that there was a threat.

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Denver International to Sydney Kingsford Smith Flight Information

Flights Arrive in Sydney Kingsford Smith
Flights Depart from Denver International
Flight Price $772
Distance 8354 miles
Airlines Qantas Airways, Virgin Australia, American Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.