Cheap Flights from Udon Thani to Sydney

Compare Udon Thani to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

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Flight deals from Udon Thani to Sydney

Looking for a cheap last-minute deal or the best return flight from Udon Thani to Sydney? Find the lowest prices on one-way and return tickets right here.

Sydney.$1,692 per passenger.Departing Fri, 7 Aug, returning Fri, 14 Aug.Return flight with Thai Airways.Outbound indirect flight with Thai Airways, departs from Udon Thani on Fri, 7 Aug, arriving in Sydney.Inbound indirect flight with Thai Airways, departs from Sydney on Fri, 14 Aug, arriving in Udon Thani.Price includes taxes and charges.From $1,692, select.

Find the cheapest month to fly from Udon Thani to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Udon Thani to Sydney flights are currently cheapest in August.

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Udon Thani to Sydney: Alternative routes

Compare routes from Udon Thani to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Udon Thani to Sydney: Flight information

The things to know before you go.

Cheapest flight found	$1,692
Cheapest month to fly	August

Finding cheap flights from Udon Thani to Sydney: Frequently asked questions

How much are return flights from Udon Thani to Sydney?

The best price we found for a return flight from Udon Thani to Sydney is $1,692. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Udon Thani to Sydney?

Currently, there are no airlines that fly direct from Udon Thani to Sydney. But we found flights with one or more stops from $1,692.

How many flights are there a week from Udon Thani to Sydney?

As of December 2025, there are no flights flying from Udon Thani to Sydney.

When is the cheapest time to fly from Udon Thani to Sydney?

The cheapest month to fly from Udon Thani to Sydney is usually August.

Which upcoming date is cheapest to fly from Udon Thani Airport to Sydney Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Udon Thani Airport to Sydney Airport on Friday, 7 August 2026.

Can I get a direct flight from Udon Thani Airport to Sydney Airport?

No airlines currently offer direct flights between Udon Thani Airport and Sydney Airport. Most routes have one or more stops.

How can I find the best flight deal to Sydney?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Sydney?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Udon Thani Airport to Sydney with?

Currently, Thai Airways offers the cheapest flight tickets to Sydney.

Travelling from Udon Thani International Airport (UTH) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

The timezone in Sydney is UTC+11, which is four hours ahead of Udon Thani.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to board your UTH to SYD flight.
Travelling during a peak time like January? Major public holidays and other popular periods can lead to longer queues at check-in and security. Play things extra safe and get there up to four hours before an international flight and two hours before domestic departures.

How to find the cheapest flights from Udon Thani International Airport (UTH) to Sydney (Kingsford Smith) Airport (SYD)

$1,045 is currently the lowest price for a one-way Udon Thani International Airport to Sydney (Kingsford Smith) Airport flight. A return flight starts from $1,692. These fares can change depending on availability and demand.
It's usually best to book as early as possible if you want to find cheap tickets from UTH to SYD. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.
If you can be flexible with your travel plans, use the 'Whole month' tool. It'll find the lowest price across every month when searching for your flight from Udon Thani International Airport to Sydney (Kingsford Smith) Airport.
You won't have to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you as soon as there's a change in price on cheap flights from UTH to SYD.
Tailor your trip using filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Udon Thani International Airport to Sydney (Kingsford Smith) Airport.

Handy information about Udon Thani International Airport (UTH)

When it comes to the on-time performance of Udon Thani International Airport, 69.72% of flights stick to their scheduled arrival time.
To reach Udon Thani International Airport from central Udon Thani, it takes around 15 minutes by car. This depends on traffic, however. It's approximately 11 kilometres from the airport to the city centre.
Catching an early flight from Udon Thani International Airport to Sydney (Kingsford Smith) Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by picking one of these hotels close to UTH:

Arriving at Sydney (Kingsford Smith) Airport (SYD)

Consider booking a hotel close to SYD if you have a late Udon Thani International Airport to Sydney (Kingsford Smith) Airport flight. Pick one of these options and skip the long transfer after landing:
Grab a Sydney (Kingsford Smith) Airport rental car and explore Sydney and beyond with your own wheels. Simba car hire, Bargain Car Rentals and Yes Drive are well-known companies you can book with here.
For the lowest price, reserve your vehicle from Sydney (Kingsford Smith) Airport around two weeks before your trip.

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

Sydney (Kingsford Smith) Airport is roughly 18 kilometres from central Sydney. Driving there takes about 20 minutes.
When travelling on public transport, expect a journey of around 25 minutes.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

It's time to work out your travel dates for your flight from Udon Thani International Airport to Sydney (Kingsford Smith) Airport. April is the busiest month to head to Sydney. If you're after a more relaxed vibe, go in April.
When booking your flight from Udon Thani International Airport to Sydney (Kingsford Smith) Airport, consider the type of weather you enjoy. January is the warmest month in Sydney, with temperatures ranging from 17ºC to 32ºC.
For cooler conditions, look for a cheap ticket from UTH to SYD in July. Average temperatures are between 5ºC and 19ºC then.

Explore more of Australia

Canberra is just one of the many cities in Australia waiting to be explored once you've taken in the sights of Sydney. Around 241 kilometres away to the south-west, check out popular attractions including Australian War Memorial, National Gallery of Australia and Parliament House.
Newcastle is another well-known destination in Australia and is around 121 kilometres north-east of Sydney. No journey is complete without seeing Newcastle Beach, Nobbys Beach and Merewether Beach.