CMB - SYD

Find cheap flights from Colombo to Sydney

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Colombo to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Colombo to Sydney, as well as popular online travel agencies
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Booking Insights
Flight Deals

Cheap Flights from Colombo to Sydney (CMB-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colombo to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colombo to Sydney

Air Seychelles Logo
CMB-SYD
10h 05mdirect
Air Seychelles Logo
SYD-CMB
11h 15mdirect
Air Seychelles
Find Deal
SriLankan Airlines Logo
CMB-SYD
10h 15mdirect
SriLankan Airlines Logo
SYD-CMB
11h 15mdirect
SriLankan Airlines
Find Deal

Everything you should know

When to book
8 weeks
in advance
Our data shows that travellers who book at least 8 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 11% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
4 days a week
There are direct flights from Colombo to Sydney 4 days a week: Tue, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest round-trip
Air Seychelles
Thu 11/9
CMB - SYD • Direct
Cheapest one-way flights
Air Seychelles
Thu 11/9
CMB - SYD • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Booking Insights

KAYAK's insights & trends for Colombo to Sydney flights

Get data-powered insights and trends into flights from Colombo to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Colombo Bandaranaike Intl Airport to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Colombo Bandaranaike Intl Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Colombo Bandaranaike Intl Airport to Sydney is May, where tickets cost C$ 1,323 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is C$ 2,013 and C$ 1,595 respectively.

How far in advance should I book a flight from Colombo Bandaranaike Intl Airport to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Colombo Bandaranaike Intl Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Colombo Bandaranaike Intl Airport to Sydney, you should book around 8 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Find deals

Good to know

Low seasonJune
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.

When to book flights from Colombo to Sydney

Are your dates flexible? Find out the best times to travel from Colombo to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Colombo to Sydney flights

  • Which aircraft models fly most regularly from Colombo to Sydney?

    The Airbus A330-300 is the aircraft model that flies most regularly on the Colombo to Sydney flight route.

  • Which airline alliances offer flights from Colombo to Sydney?

    oneworld is the only airline alliance operating flights between Colombo and Sydney.

  • On which days can I fly direct from Colombo to Sydney?

    You can catch a direct flight from Colombo to Sydney on Tuesday, Friday, Saturday, and Sunday.

  • How does KAYAK find such low prices on flights from Colombo to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colombo to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colombo to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Colombo is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colombo to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Colombo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colombo to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Colombo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Colombo to Sydney?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Colombo Bandaranaike Intl to Sydney Kingsford Smith.
Find which airlines fly direct from Colombo Bandaranaike Intl Airport to Sydney Kingsford Smith Airport, which days they fly and book direct flights.

Direct departures

Colombo Bandaranaike Intl to Sydney Kingsford Smith

Tuesday

SriLankan Airlines

SriLankan Airlines

Friday

SriLankan Airlines

SriLankan Airlines

Saturday

SriLankan Airlines

SriLankan Airlines

Sunday

SriLankan Airlines

SriLankan Airlines

See more nonstop flights

Direct returns

Sydney Kingsford Smith to Colombo Bandaranaike Intl

Tuesday

SriLankan Airlines

SriLankan Airlines

Friday

SriLankan Airlines

SriLankan Airlines

Saturday

SriLankan Airlines

SriLankan Airlines

Sunday

SriLankan Airlines

SriLankan Airlines

See more nonstop flights

Reviews of the top airline flying from Colombo to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Colombo to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Colombo to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1365 reviews
8.0Comfort
8.2Boarding
8.6Crew
7.7Food
8.0Entertainment
Airline reviews

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

8.0 ExcellentAnonymous, Sep 2025SIN - BLR
Read more Singapore Airlines reviews

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

Headwind delayed our flight which wasn’t the airlines fault

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Food could have been better. Too many passengers getting up and down all the time.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

Everything you need to know for your flight from Colombo to Sydney

Information on your arrival and departure airports

Colombo (CMB)
Sydney (SYD)

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