$572 Find Cheap Flights from Boise to Australia - Compare and Save

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Cheap Flights from Boise to Australia

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sydney
Sydney1 stop$1,175
Adelaide
Adelaide2 stops$1,518
Sydney
Sydney1 stop$1,175
Adelaide
Adelaide2 stops$1,518

Price, demand and travel trends for Boise to Australia flights

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

Are flights from Boise to Australia cheaper or more expensive than last year?

Fares from Boise to Australia are running about the same as they were around this time last year, averaging $1,348 round-trip.

What are the cheapest fares from Boise to Australia right now?

Here are the cheapest round-trip fares from Boise to Australia on KAYAK in the last week:

• Brisbane (BNE) from $1,139
• Sydney Kingsford Smith (SYD) from $1,161
• Melbourne (MEL) from $1,346
• Coffs Harbour (CFS) from $1,649

What’s the cheapest month to fly from Boise to Australia?

January is the cheapest time of year to fly, with average fares of $1,161. Prices are highest in December, when average flight costs increase to around $1,838.

Which airport in Australia is the cheapest to fly to from Boise?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Australia are:

• Melbourne (MEL) from $1,156
• Brisbane (BNE) from $1,229
• Sydney Kingsford Smith (SYD) from $1,381

What’s the cheapest day to fly from Boise to Australia?

Sunday tends to be the cheapest day to fly from Boise to Australia, while Friday is the most expensive. Fares run about 19% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Boise to Australia?

Data from the past 12 months shows it's cheapest to fly to Australia during the afternoon with average prices of $1,293. The morning is the most expensive time to fly, with average prices of $1,503.

Key details for Boise to Australia flights

Low season

August

Cheapest flight

$572
Beat the crowds with an average 56% drop in travelers.
The most popular month to fly with an average 52% increase in travelers.
One-way flight from Boise to Brisbane

Your Boise to Australia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Boise to Australia?

    Yes. Fares from Boise to Australia are low right now. As a rule of thumb, a round-trip under $1,184 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Boise to Australia?

    Over the past 12 months, round-trip fares from Boise to Australia have ranged from $1,184 to $1,583.

  • What are the main airports serving Australia?

    Australia has 145 airports. The three busiest are Sydney Kingsford Smith (SYD) (51% of arrivals), Brisbane (BNE) (35%) and Melbourne (MEL) (12%).

  • What airlines fly nonstop from Boise to Australia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Boise to Australia. One-stop options include American Airlines and United Airlines.

  • Which cabin classes are available on flights from Boise to Australia?

    On flights from Boise to Australia you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Australia?

    KAYAK travelers' favorite landmarks in Australia include:

    • Sydney Opera House
    • Marvel Stadium
    • Melbourne Cricket Ground
    • Crown Casino

Your guide to booking Boise to Australia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Sunday is usually the cheapest. Flights on Friday cost about 19% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Melbourne (MEL) is the cheapest airport to fly into from Boise. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Sydney, which is the most popular destination in Australia. From there, it's easy to continue on to other popular destinations such as Melbourne, Brisbane and Perth.

Reviews of the top airlines flying from Boise to Australia

 
Need help choosing which airline to fly with from Boise to Australia? 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 10388 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
6.7Food
8.1Crew
Airline reviews

The seats were very uncomfortable. I paid for the front economy. i swear they added a row of seats in there. It was so tight, that I could measure the distance between my seat and the one in front from my elbow to the tips of my fingers plus six inches. The seat cushion was completely worn out. The dinner was very good. Thank you for having a vegetarian option as a standard. But breakfast was nothing but sugar. that's not food. The crew was crabby and rude, especially in regards to coming to the back gallery. And the entertainment choice: why would you put violent movies on the choice? the Godfather? Some movies with black women being beaten over the head with clubs? What the heck? You know that when there is a movie on a plane, everyone gets to watch it. Why choose the most violent titles possible? The total number of movies were very limited, and the television, even more so. No games were available on the set. The wellness section was nice, thank you. I appreciated a galley in the middle where I could stand. The seats were unbearable.

4.0 OkayKirstin, Jul 2026
Read more United Airlines reviews

The seats were very uncomfortable. I paid for the front economy. i swear they added a row of seats in there. It was so tight, that I could measure the distance between my seat and the one in front from my elbow to the tips of my fingers plus six inches. The seat cushion was completely worn out. The dinner was very good. Thank you for having a vegetarian option as a standard. But breakfast was nothing but sugar. that's not food. The crew was crabby and rude, especially in regards to coming to the back gallery. And the entertainment choice: why would you put violent movies on the choice? the Godfather? Some movies with black women being beaten over the head with clubs? What the heck? You know that when there is a movie on a plane, everyone gets to watch it. Why choose the most violent titles possible? The total number of movies were very limited, and the television, even more so. No games were available on the set. The wellness section was nice, thank you. I appreciated a galley in the middle where I could stand. The seats were unbearable.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

Easy of boarding, helpfully staff at check in, surprisingly comfortable seating

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

Smooth flight. As always dinner could have been more generous. Breakfast was great.

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

Flight was delayed because of mechanical. Could not get landing space which caused me to miss my connection. Messy and not organized.

I was traveling alone abroad for the first time and the staff was not helpful and rude at times.

Baggage allowances are terrible and the experience of only being allowed one bag and paying so much to take sporting equipment to a known ski area should be addressed.

Bad food, small seats that didn’t recline. I thought I was buying a quantas ticket so I feel like I got scammed

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

Flight was delayed due to a steering issue with plane. The delay caused me to miss the connecting flight. The delay caused me to spend an extra 21 hours in airports and flights to get to my destination. The plane issue obviously should have been found and fixed before we even boarded. Ridiculous.

DO NOT BOOK THROUGH AMERICAN AIRLINES IF YOU HAVE ANY ADDITIONAL NEEDS. Great flight, crew etc. it wasn’t full so had space to stretch out Only downside was there was no GF option for my partner. We booked through American and it was a Qantas flight so despite contacting both airlines to confirm, she didn’t have a gluten free meal for the 16 hour flight (nor the flight in the other direction). The flight attendants did their best to accommodate but it was not super substantial.

Crazy seating issues. We got seated far apart. Offered middle seats at a premium rate. Why is a middle seat now the expensive seat? Baffling.

The food at Admirals Club was really great Pijamas were a nice feature The flight attendant was very nice and great attitude The aa.com does not work well specially internet service Overall a very good flight .

Flight a little late. Entertainment system didn’t work for first hour. Toilets dirty after 2 hours. Is there no one assigned to clean them?

More options for your flight from Boise to Australia

Complete your trip to Australia with a hotel stay or car rental