$924 Cheap Flights from Sydney (SYD) to Chiang Rai (CEI)

View $924 flight on Fri, Dec 5, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Chiang Rai Intl. Airport (CEI)

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Cheap Flights from Sydney to Chiang Rai (SYD-CEI)

Prices were available within the past 7 days and start at $924 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Sydney (SYD) to Chiang Rai (CEI)
Origin airport
Kingsford Smith Intl.
Destination airport
Chiang Rai Intl.
Distance
5023 mi

Sydney to Chiang Rai Flights

The cheapest times to fly from Sydney to Chiang Rai

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sydney to Chiang Rai are during the month of . You can find some of the cheapest flights from Sydney to Chiang Rai with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Chiang Rai

Sunday is one of the best days to book for cheap flights from Sydney to Chiang Rai: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sydney to Chiang Rai

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sydney to Chiang Rai in 2025. You can also book with separate airlines for your outbound and return journeys, from $924 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sydney to Chiang Rai flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sydney to Chiang Rai airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI) cost?
Snag a cheap one-way flight from $924 or cheap return flight from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI)?
The cheapest month to fly from SYD to CEI is , when there's less demand. Off-peak months are often when better flight deals are available between these airports.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI)?
To find the cheapest airline that'll fly you from SYD to CEI, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI)?
There are no daily direct flights from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from SYD to CEI?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI)?
Opt for a flight from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI) that leaves before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI) last-minute?
Holding off until just before your departure to book a ticket from SYD to CEI often results in higher prices. Although you may find some last-minute offers, there's no guarantee. Be flexible with your itinerary to boost your chances of getting a bargain.
Is it cheaper to book a SYD to CEI flight and hotel package?
Compared with arranging flights and hotels separately, booking a SYD to CEI flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Chiang Rai Intl. Airport (CEI)?
It's usually possible to reschedule or cancel your SYD to CEI flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

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