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Boise

$1,027+ Cheap flights from Sydney (SYD) to Boise (BOI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BOI
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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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 February 19, 2026.

This United Airlines deal was found by Cheapflights users on 2/17. 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 2/2611:20 am
SYD
-
BOI
1 stop27h 35m
United Airlines
Thu 3/267:07 am
BOI
-
SYD
1 stop31h 58m
United Airlines
Deal found 2/17$1,027
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Fri 3/1311:20 am
SYD
-
BOI
2 stops29h 18m
American Airlines
Tue 3/177:00 am
BOI
-
SYD
2 stops33h 00m
American Airlines
Deal found 2/17$1,087
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Sat 3/2112:10 pm
SYD
-
BOI
1 stop26h 03m
United Airlines
Sat 4/46:15 am
BOI
-
SYD
1 stop32h 40m
United Airlines
Deal found 2/16$1,239

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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,029
(United Airlines)

Popular in

April

Cheapest in

October

Average price

$1,096
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
Highest demand for flights based on searches. 17% potential increase in price ($254 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 19, 2026.
Use the filters below to find and compare flights from Sydney to Boise that are best for you.

Fly from

Sydney

Fly to

Boise

Route

Depart

Return

Price

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sat 3/21

11:50 am-10:06 am

2 stops39h 16m

Boise Air Term. Gowen Fld

Sat 4/4

5:29 pm-6:55 am

2 stops45h 26m

$1,029

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Fri 3/13

11:20 am-11:38 pm

2 stops29h 18m

Boise Air Term. Gowen Fld

Tue 3/17

7:00 am-9:00 am

2 stops33h 00m

$1,087

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 4/2

9:05 am-9:40 pm

3 stops53h 35m

$2,599

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Fri 4/3

6:20 am-9:40 pm

3 stops32h 20m

$2,677

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Wed 4/1

9:05 am-12:25 pm

3 stops44h 20m

$2,764

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sun 3/29

5:55 pm-11:02 pm

3 stops46h 07m

$2,813

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Sat 3/28

10:15 am-12:25 pm

3 stops43h 10m

$2,814

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Mon 3/30

8:05 am-11:56 pm

3 stops32h 51m

$2,831

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Tue 3/31

12:40 pm-11:56 pm

2 stops52h 16m

$3,822

SydneyBoise

SYD - BOI

SYDBOI

Sydney Kingsford Smith

Thu 4/2

10:15 am-11:46 pm

2 stops30h 31m

$6,410

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Boise

How much does it cost to fly round-trip from Sydney to Boise?

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated February 19, 2026.
Read reviews from past customers who have flown United Airlines from Sydney to Boise. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,325 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,325 reviews
United Airlines
7.4
Good
9,325 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 $1,087, United Airlines can have you in Boise from Sydney in 29h 18m. The distance from Sydney to Boise is about 7894 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Sydney to Boise round-trip?

    United Airlines, at $1,019, was found to be the cheapest airline from Sydney to Boise.. United Airlines is currently priced 12% below the average price you’ll pay for this route.

  • 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
Ontario
Meridian
Nampa
Caldwell
McCall

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Top airline flying from Sydney to Boise

Discover the top airline that operate flights from Sydney to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,019Average$1,360FlexibilityNo cancel feeOn-time69%

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