$707 Cheap Flights from Sydney (SYD) to Bilbao (BIO)

View $707 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Bilbao Airport (BIO)

Cheap Flights from Sydney to Bilbao (SYD-BIO)

Prices were available within the past 7 days and start at $707 for one-way flights and $1,258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,258 Roundtrip, found 2 days ago
$1,258
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,258 found 2 days ago
Qantas Airways
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,282 Roundtrip, found 2 days ago
$1,282
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,282 found 2 days ago
Turkish Airlines
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,304 Roundtrip, found 2 days ago
$1,304
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,304 found 2 days ago
Qantas Airways
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,308 Roundtrip, found 2 days ago
$1,308
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,308 found 2 days ago
Qantas Airways
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,328 Roundtrip, found 2 days ago
$1,328
Roundtrip
found 2 days ago
Select Qantas Airways flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,328 found 2 days ago
Turkish Airlines
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,343 Roundtrip, found 2 days ago
$1,343
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,343 found 2 days ago
Turkish Airlines
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,346 Roundtrip, found 2 days ago
$1,346
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,346 found 2 days ago
Qatar Airways
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,559 Roundtrip, found 2 days ago
$1,559
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,559 found 2 days ago
Etihad Airways
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,611 Roundtrip, found 2 days ago
$1,611
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,611 found 2 days ago
Iberia
Tue, Oct 14 - Tue, Oct 21
SYD
Sydney
BIO
Bilbao
$1,829 Roundtrip, found 2 days ago
$1,829
Roundtrip
found 2 days ago
Select Iberia flight, departing Tue, Oct 14 from Sydney to Bilbao, returning Tue, Oct 21, priced at $1,829 found 2 days ago
Flights from Sydney (SYD) to Bilbao (BIO)
Origin airport
Kingsford Smith Intl.
Destination airport
Bilbao
Roundtrip price
$1,258
Distance
10902 mi

Sydney to Bilbao Flights

The cheapest times to fly from Sydney to Bilbao

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 Bilbao are during the month of October. You can find some of the cheapest flights from Sydney to Bilbao with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Bilbao

Sunday is one of the best days to book for cheap flights from Sydney to Bilbao: 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 Bilbao

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 Bilbao in 2025. You can also book with separate airlines for your outbound and return journeys, from $707 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 Bilbao 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 Bilbao 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 Bilbao Airport (BIO) cost?
Grab a cheap one-way flight from $707 or cheap return flight from $1,258 from Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO)?
The cheapest month to fly from SYD to BIO is October, when demand is low. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from SYD to BIO. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO)?
Nonstop flights from Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SYD to BIO?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, airline and other factors.*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 Bilbao Airport (BIO)?
To avoid potential delays on the Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO) route, travel before 3 PM. Later departures are 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 Bilbao Airport (BIO) last-minute?
Last-minute fares from SYD to BIO are usually more expensive. For the cheapest rates, start searching for flights early. That said, if your travel plans are flexible, you may score a cheap ticket right before your journey.
Is it cheaper to book a SYD to BIO flight and hotel package?
You can save money by booking a SYD to BIO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your ideal flights and accommodations, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Bilbao Airport (BIO)?
If you booked your SYD to BIO flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.