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Cheap flights from Idaho to Sydney from $970

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SYD
23 Dec — 30 Dec1
1 adult

Cheap flight deals from Idaho to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

$1,479

One-way from

$970
United Airlines
  • United Airlines
  • 9/4-18/4
  • 4 total stops
  • 85h 07m total
  • Idaho to Sydney
United Airlines
  • United Airlines
  • 3/2
  • 1 total stop
  • 28h 18m total
  • Idaho to Sydney

Find flight deals from Idaho to Sydney

Cheapest flights from Idaho to Sydney
Explore the most affordable flight options available from Idaho to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2024.

Tue 17/1218:55GEG - SYD
2 stops53h 50mAlaska Airlines
Tue 24/1221:40SYD - GEG
2 stops45h 28mAlaska Airlines
Deal found 17/12$3,787
Tue 17/1207:11BOI - SYD
2 stops31h 09mMultiple Airlines
Fri 20/1210:20SYD - BOI
2 stops30h 38mMultiple Airlines
Deal found 16/12$4,173
Tue 17/1207:11BOI - SYD
1 stop30h 14mQantas Airways
Fri 20/1219:15SYD - BOI
2 stops35h 18mQantas Airways
Deal found 16/12$5,701
Tue 17/1220:20GEG - SYD
2 stops51h 15mMultiple Airlines
Tue 24/1211:50SYD - GEG
1 stop21h 51mMultiple Airlines
Deal found 17/12$5,825
Tue 17/1214:31GEG - SYD
1 stop23h 04mDelta
Tue 24/1214:15SYD - GEG
1 stop25h 33mDelta
Deal found 17/12$6,466

Find flights from Idaho to Sydney within your budget

Customise your flight search to find flights from Idaho to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 9/4

17:22-07:00

2 stops45h 38m

Sydney Kingsford Smith

Fri 18/4

10:20-09:49

2 stops39h 29m

$1,479

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 4/2

07:15-06:50

1 stop29h 35m

Sydney Kingsford Smith

Thu 27/3

13:15-22:55

1 stop26h 40m

$1,621

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Thu 16/1

18:50-19:45

2 stops30h 55m

Sydney Kingsford Smith

Thu 23/1

21:40-12:19

2 stops32h 39m

$2,602

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 14/1

05:10-09:05

2 stops32h 55m

Sydney Kingsford Smith

Wed 19/3

12:10-14:30

1 stop20h 20m

$2,695

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 2/4

18:40-20:45

2 stops33h 05m

Sydney Kingsford Smith

Wed 16/4

19:25-22:57

3 stops43h 32m

$2,733

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 9/4

07:00-07:20

3 stops32h 20m

Sydney Kingsford Smith

Fri 18/4

09:20-19:41

2 stops26h 21m

$3,267

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 14/1

07:02-17:40

3 stops39h 38m

Sydney Kingsford Smith

Wed 19/3

17:50-23:02

3 stops47h 12m

$3,275

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 9/6

05:43-07:20

2 stops32h 37m

Sydney Kingsford Smith

Mon 23/6

09:20-12:40

3 stops44h 20m

$16,787

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 9/6

12:40-09:35

3 stops51h 55m

Sydney Kingsford Smith

Mon 23/6

11:50-12:35

3 stops41h 45m

$17,418

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 8/5

14:40-06:35

1 stop22h 55m

Sydney Kingsford Smith

Sat 24/5

17:35-22:33

1 stop21h 58m

$30,822

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 13 results
1
2

Best time to book a flight from Idaho to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Idaho with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Idaho to Sydney

Get recent, data-driven insights about flights from Idaho to Sydney including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Idaho to Sydney?

Currently, May is the cheapest month in which you can book a flight from Idaho to Sydney (average of $129). Flying from Idaho to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to SYD?

Find hourly flight availability from Idaho to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2024.

When flying from Idaho to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 18 December 2024.
See what other customers who have flown with Alaska Airlines, United Airlines and Air Canada from Idaho to Sydney have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
9,552 reviews

Food

7.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

8.0
Very Good
9,552 reviews
8.0
Very Good
9,552 reviews

Food

7.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

8.0
Very Good
8,604 reviews
8.0
Very Good
9,552 reviews

Food

7.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.5
Good
1,879 reviews
8.0
Very Good
9,552 reviews

Food

7.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.5
Good
808 reviews
8.0
Very Good
9,552 reviews

Food

7.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.4
Good
9,059 reviews
8.0
Very Good
9,552 reviews

Food

7.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Boarding

8.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Sydney from Idaho?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly into when you book flights from Idaho to Sydney.

  • Can I find deals for flights from Idaho to Sydney that include hotel bookings?

    Yes. In addition to deals on Idaho to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Sydney.

  • Can I find deals for business class flights from Idaho to Sydney?

    Yes. Cheapflights offers flight deals from Idaho to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Idaho to Sydney (average of $129). Flying from Idaho to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from Idaho to Sydney?

Cheapflights makes it easy to find Idaho to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Idaho to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Idaho by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Idaho to Sydney with no change fees?

Certainly. Search results for flights to Sydney from Idaho shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Idaho to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Idaho today and book when prices fit your budget.

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