HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$670+ Cheap flights from Sydney (SYD) to Boise (BOI)

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sydney to Boise with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Sydney to Boise

Cheapest flights from Sydney to Boise
Explore the most affordable flight options available from Sydney to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.

This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:00 pm
SYD
-
BOI
1 stop26h 11m
American Airlines
Wed 8/191:55 pm
BOI
-
SYD
2 stops25h 10m
American Airlines
Deal found 6/28$987
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:05 pm
SYD
-
BOI
1 stop25h 58m
American Airlines
Mon 11/91:29 pm
BOI
-
SYD
2 stops49h 31m
American Airlines
Deal found 6/24$998
This United Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:50 am
SYD
-
BOI
1 stop17h 24m
United Airlines
Mon 11/96:59 pm
BOI
-
SYD
1 stop20h 21m
United Airlines
Deal found 6/28$1,018
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:15 am
SYD
-
BOI
1 stop29h 45m
Delta
Wed 8/197:00 am
BOI
-
SYD
1 stop31h 50m
Delta
Deal found 6/28$1,039
This Gotogate deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:25 pm
SYD
-
BOI
3 stops43h 20m
Multiple Airlines
Wed 8/196:00 am
BOI
-
SYD
2 stops20h 50m
Multiple Airlines
Deal found 6/28$1,802

Find flight deals from Sydney to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Boise (BOI). 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 June 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$987
(American Airlines)

One-way from

$670
(Delta)
Provider with most accurate pricing for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Boise Air Term. Gowen Fld flights.
Search Deals
From Sydney Kingsford Smith to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Sydney Kingsford Smith to Boise Air Term. Gowen Fld
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sydney to Boise 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 2,558,603 searches. Data last updated June 29, 2026.
Use the filters below to find and compare flights from Sydney to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 8/12

9:00 am-10:11 pm

2 stops29h 11m

Boise Air Term. Gowen Fld

Wed 8/19

1:55 pm-7:05 am

2 stops25h 10m

$1,002
Quickest round-trip

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 11/5

11:50 am-11:14 am

1 stop17h 24m

Boise Air Term. Gowen Fld

Mon 11/9

6:59 pm-9:20 am

1 stop20h 21m

$1,018

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 8/12

9:15 am-11:00 pm

1 stop29h 45m

Boise Air Term. Gowen Fld

Wed 8/19

7:00 am-6:50 am

1 stop31h 50m

$1,039

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 8/12

7:25 pm-10:45 pm

3 stops43h 20m

Boise Air Term. Gowen Fld

Wed 8/19

6:00 am-6:50 pm

2 stops20h 50m

$1,802
Cheapest one-way
Quickest one-way

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 7/5

9:15 am-2:24 pm

1 stop21h 09m

$670

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sat 7/4

9:30 am-11:32 am

2 stops42h 02m

$678

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sat 7/4

8:45 pm-12:29 pm

3 stops31h 44m

$948

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Sorted by cheapest first

Compare providers for flights from Sydney to Boise

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Boise in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sydney to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Sydney with our price prediction graph.
Estimated round-trip 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.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sydney to Boise?

    For as low as $1,018, American Airlines can have you in Boise from Sydney in 17h 24m. The distance from Sydney to Boise is about 7894 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Meridian
Nampa
Caldwell
Ontario

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.