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$873 Find Cheap Flights to Boise – Compare and Save

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Everything you should know

Cheapest return flight
$1,673
Typical prices: $1,413-$2,468
American Airlines
Tue 6/11Sat 10/11
SYD - BOI • 2 stops
Cheapest one-way flight
$873
Typical prices: $800-$1,326
Multiple Airlines
Sun 21/1
SYD - BOI • 2 stops
Top airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
Top routes
Cheapest • 14% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 43% price drop
Most popular
Good to know
+1
Good to know
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Booking Insights
Flight Deals

Cheap Flights to Boise

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Boise

Fri, 6 Nov - Tue, 10 Nov
American Airlines Logo
11:10 - 13:23SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
44h 13m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
14:41 - 06:55BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
22h 14m1 stop Dallas/Fort Worth
$1,673American Airlines
Fri, 6 Nov - Tue, 10 Nov
American Airlines Logo
11:10 - 13:23SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
44h 13m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
14:41 - 06:55BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
22h 14m1 stop Dallas/Fort Worth
$1,681American Airlines
Fri, 6 Nov - Tue, 10 Nov
American Airlines Logo
14:05 - 13:51SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
41h 46m1 stop Dallas/Fort Worth
American Airlines Logo
14:41 - 06:25BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
45h 44m2 stops Dallas/Fort Worth Los Angeles
$1,868American Airlines
Fri, 6 Nov - Tue, 10 Nov
American Airlines Logo
14:05 - 13:51SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
41h 46m1 stop Dallas/Fort Worth
American Airlines Logo
14:41 - 06:25BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
45h 44m2 stops Dallas/Fort Worth Los Angeles
$1,874American Airlines
Fri, 6 Nov - Tue, 10 Nov
American Airlines Logo
14:05 - 13:51SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
41h 46m1 stop Dallas/Fort Worth
American Airlines Logo
14:41 - 06:25BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
45h 44m2 stops Dallas/Fort Worth Los Angeles
$1,888American Airlines
Fri, 6 Nov - Tue, 10 Nov
Air Canada Logo
11:20 - 13:45SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
44h 25m2 stops Vancouver Intl Denver Intl
Air Canada Logo
17:44 - 09:35BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
45h 51m2 stops Denver Intl Vancouver Intl
$1,931Air Canada
Fri, 6 Nov - Tue, 10 Nov
Air Canada Logo
11:20 - 13:45SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
44h 25m2 stops Vancouver Intl Denver Intl
Air Canada Logo
17:44 - 09:35BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
45h 51m2 stops Denver Intl Vancouver Intl
$1,937Air Canada
Fri, 6 Nov - Tue, 10 Nov
Air Canada Logo
11:20 - 13:45SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
44h 25m2 stops Vancouver Intl Denver Intl
Air Canada Logo
17:44 - 09:35BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
45h 51m2 stops Denver Intl Vancouver Intl
$1,946Air Canada
Fri, 6 Nov - Tue, 10 Nov
Air Canada Logo
11:20 - 09:56SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
40h 36m2 stops Vancouver Intl Denver Intl
Air Canada Logo
05:00 - 09:35BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
34h 35m2 stops Denver Intl Vancouver Intl
$1,953Air Canada
Sun, 27 Dec - Fri, 1 Jan
United Airlines Logo
11:20 - 21:36BNE  Brisbane-BOI Boise Air Term. Gowen Fld
27h 16m1 stop San Francisco
United Airlines Logo
18:55 - 07:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
19h 35m1 stop San Francisco
$3,067United Airlines
Booking Insights

Price, demand, and travel trends for flights to Boise

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to Boise?

Sydney to Boise is the cheapest route at $1,673 return, found in the past 5 days on KAYAK. Brisbane to Boise is the most popular connection with return deals from $3,067.

How much is a flight to Boise?

On average, a return flight from Australia to Boise costs $2,148, based on KAYAK data over the past 12 months. Return fares from Brisbane average $1,645, while Sydney runs a bit higher at $1,680.

What is the cheapest day to fly to Boise?

Thursday is the cheapest day to fly to Boise at $1,679 return on average over the past 12 months on KAYAK. Saturday is the most expensive at $2,440.

What is the cheapest month to fly to Boise?

•January is the cheapest month to fly to Boise with an average price of $1,227 return.
•July ($3,112) and April ($2,992) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Boise?

Morning flights to Boise are the cheapest at $1,784 return on average. Evening flights are the most expensive at $2,992.

What is a good deal for flights to Boise?

Flights under $1,413 are considered a good deal. 25% of KAYAK users found return flights to Boise at or below these prices, with the lowest fares from:
•Brisbane $1,276
•Melbourne Airport $1,363.

Key details for flights to Boise

Low season

August

Cheapest flight

$873
Beat the crowds with an average 65% drop in traveller numbers.
One-way flight from Sydney to Boise

When to book flights to Boise

Are your dates flexible? Find out the best times to travel to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Boise, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Boise is a good deal?

    A good deal on a flight to Boise is around $1,413 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • What is the difference between the most popular and the most frequent airline at Boise?

    Qantas Airways operates the most flights from Australia to Boise at 0 per week, while United Airlines is the airline most often selected by KAYAK users searching for flights from Australia to Boise. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

Your guide to booking Boise flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Boise, a good return fare is around $1,413. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Boise in January. Return fares historically average $1,227, making January the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to $1,208 on a return flight. Morning flights to Boise average $1,784 compared to $2,992 for afternoon flights.

Reviews of the top airline flying to Boise

 
Need help choosing which airline to fly with to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10275 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.7Food
Airline reviews

Please stop those idiotic and unrelenting announcements, commercials and stupid credit card drivel. All together about 15 minutes of stupidness that annoys each passenger.

2.0 MediocreMichael, Oct 2026
Read more United Airlines reviews

Please stop those idiotic and unrelenting announcements, commercials and stupid credit card drivel. All together about 15 minutes of stupidness that annoys each passenger.

Uncomfortable plastic seats even in premium economy. No free wifi. Even paid wifi was spotty to nonexistent. Bad food. Much worse than economy on foreign carriers like Qantas.

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Great. Food going from Australia to the US was better than other way around, but still needs improvement in terms of quality and quantity!!!

Crew seemed annoyed by the fact we were there. Very unpleasant

Due to a cancelled flight the day before this flight only had 44 people. Best flight ever on international route. Food getting better. Can United provide fruit ex apples and bananas for snacks? Crew fantastic.

Honestly didn’t like anything. Crew was in rush . Food was ok and there was no whiskey. Have to pay extra $ if you want to drink whiskey . They only provide wine and beer.

Compared to other international Airlines the infotainment system is need of overhaul. Doesn't have music it's got a limited selection of movies but I was impressed that an American airline was showing the documentary on John Farnham an Australian singer!

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