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$1,540 Find Cheap Flights to Boise – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
$1,540
Typical prices: $1,437-$2,418
Air Canada
Fri 30/3Tue 3/4
SYD - BOI • 2 stops
Cheapest one-way flight
$2,409
Typical prices: $930-$1,457
Multiple Airlines
Thu 4/1
BNE - BOI • 2 stops
Top airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
Top routes
Cheapest • 19% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Boise!
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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

Tue, 30 Mar - Sat, 3 Apr
Air Canada Logo
10:20 - 09:43SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
40h 23m2 stops Vancouver Intl Denver Intl
Air Canada Logo
06:30 - 08:20BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
32h 50m2 stops San Francisco Vancouver Intl
$1,540Air Canada
Tue, 30 Mar - Sat, 3 Apr
Air Canada Logo
10:20 - 19:16SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
25h 56m2 stops Vancouver Intl San Francisco
Air Canada Logo
06:30 - 08:20BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
32h 50m2 stops San Francisco Vancouver Intl
$1,552Air Canada
Thu, 22 Apr - Mon, 26 Apr
United Airlines Logo
06:05 - 16:49BNE  Brisbane-BOI Boise Air Term. Gowen Fld
26h 44m2 stops Melbourne San Francisco
United Airlines Logo
16:05 - 06:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
22h 25m1 stop San Francisco
$1,738United Airlines
Thu, 22 Apr - Mon, 26 Apr
United Airlines Logo
06:05 - 23:41BNE  Brisbane-BOI Boise Air Term. Gowen Fld
33h 36m2 stops Melbourne San Francisco
United Airlines Logo
14:43 - 06:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
23h 47m2 stops Denver Intl San Francisco
$1,738United Airlines
Thu, 22 Apr - Mon, 26 Apr
United Airlines Logo
06:05 - 16:49BNE  Brisbane-BOI Boise Air Term. Gowen Fld
26h 44m2 stops Melbourne San Francisco
United Airlines Logo
16:05 - 06:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
22h 25m1 stop San Francisco
$1,747United Airlines
Thu, 22 Apr - Mon, 26 Apr
United Airlines Logo
06:05 - 23:41BNE  Brisbane-BOI Boise Air Term. Gowen Fld
33h 36m2 stops Melbourne San Francisco
United Airlines Logo
14:43 - 06:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
23h 47m2 stops Denver Intl San Francisco
$1,747United Airlines
Thu, 22 Apr - Mon, 26 Apr
United Airlines Logo
06:05 - 23:41BNE  Brisbane-BOI Boise Air Term. Gowen Fld
33h 36m2 stops Melbourne San Francisco
United Airlines Logo
14:43 - 06:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
23h 47m2 stops Denver Intl San Francisco
$1,751United Airlines
Thu, 22 Apr - Mon, 26 Apr
United Airlines Logo
06:05 - 16:49BNE  Brisbane-BOI Boise Air Term. Gowen Fld
26h 44m2 stops Melbourne San Francisco
United Airlines Logo
16:05 - 06:30BOI  Boise Air Term. Gowen Fld-BNE Brisbane
22h 25m1 stop San Francisco
$1,751United Airlines
Tue, 30 Mar - Sat, 3 Apr
Air Canada Logo
10:20 - 21:16SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
27h 56m2 stops Vancouver Intl Denver Intl
Air Canada Logo
11:45 - 07:20BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
27h 35m2 stops San Francisco Vancouver Intl
$1,854Air Canada
Tue, 30 Mar - Sat, 3 Apr
Air Canada Logo
10:20 - 21:16SYD  Sydney Kingsford Smith-BOI Boise Air Term. Gowen Fld
27h 56m2 stops Vancouver Intl Denver Intl
Air Canada Logo
11:45 - 07:20BOI  Boise Air Term. Gowen Fld-SYD Sydney Kingsford Smith
27h 35m2 stops San Francisco Vancouver Intl
$1,860Air Canada
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 $1,540 return, found in the past 5 days on KAYAK. Brisbane to Boise is the most popular connection with return deals from $1,738.

How much is a flight to Boise?

On average, a return flight from Australia to Boise costs $1,880, based on KAYAK data over the past 12 months. Return fares from Brisbane average $1,517, while Sydney runs a bit higher at $1,703.

What is the cheapest day to fly to Boise?

Monday is the cheapest day to fly to Boise at $1,449 return on average over the past 12 months on KAYAK. Saturday is the most expensive at $2,426.

What is the cheapest month to fly to Boise?

•January is the cheapest month to fly to Boise with an average price of $1,196 return.
•July ($3,093) and April ($2,522) 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 $1,718 return on average. Evening flights are the most expensive at $2,975.

What is a good deal for flights to Boise?

Flights under $1,437 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 $1,196.

Key details for flights to Boise

Low season

February

Cheapest flight

$1,540
Beat the crowds with an average 62% drop in travellers.
The most popular month to fly with an average 78% increase in travellers.
Return 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 $1,437 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?

    United Airlines operates the most flights from Australia to Boise at 0 per week, and for this route United Airlines is also the airline most often selected by KAYAK users searching for flights from Australia to Boise. The two are sometimes 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 $1,437. 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 $1,196, 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 $1,257 on a return flight. Morning flights to Boise average $1,718 compared to $2,975 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.
7.3
United AirlinesOverall score based on 10461 reviews
6.7Food
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
Airline reviews

1 person checking us as we boarded, left gate on time, 12.30 we are told we were held for 15 mins as other flights were waiting to take off, captain due to rain … they were having a longer gap between take offs , 3pm we took off , they went land route via New Orleans in to Florida landed at 5.45pm offered coffee and a biscuit

2.0 MediocreAnonymous, Nov 2026
Read more United Airlines reviews

1 person checking us as we boarded, left gate on time, 12.30 we are told we were held for 15 mins as other flights were waiting to take off, captain due to rain … they were having a longer gap between take offs , 3pm we took off , they went land route via New Orleans in to Florida landed at 5.45pm offered coffee and a biscuit

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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