$798 Find Cheap Flights from Boston to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Australia departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Australia

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Australia Flight Deals from Boston

Cheapest return prices found by our users on KAYAK in the last 72 hours

Sydney
Sydney2 stops$1,920
Brisbane
Brisbane2 stops$2,137
Perth
Perth2 stops$1,984
Adelaide
Adelaide3 stops$2,219
Cairns
Cairns2 stops$2,917
Hobart
Hobart2 stops$2,528
Townsville
Townsville2 stops$5,161

Cheap Flight Deals from Boston to Australia (BOS-AU0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to Australia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Boston to Australia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Boston to Australia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Air New Zealand Logo
07:30 - 08:45BOS-SYD
35h 15m2 stops
Air New Zealand Logo
11:50 - 23:20SYD-BOS
25h 30m2 stops
$1,920Air New Zealand
Find Deal
mar., 5 ago. - mié., 20 ago.
Air Canada Logo
10:20 - 08:20BOS-SYD
31h 00m2 stops
Air Canada Logo
10:20 - 09:38SYD-BOS
38h 18m2 stops
$1,942Air Canada
Find Deal
vie., 17 oct. - lun., 27 oct.
 Logo
22:00 - 04:30BOS-PER
42h 30m2 stops
 Logo
20:30 - 15:05PER-BOS
54h 35m2 stops
$1,984
Find Deal
mar., 9 sep. - sáb., 27 sep.
 Logo
01:40 - 19:50BOS-PER
54h 10m2 stops
 Logo
20:30 - 23:00PER-BOS
62h 30m2 stops
$2,012
Find Deal
lun., 8 sep. - sáb., 27 sep.
Cathay Pacific Logo
01:40 - 20:10BOS-SYD
28h 30m1 stop
Cathay Pacific Logo
10:10 - 23:00SYD-BOS
26h 50m1 stop
$2,061Cathay Pacific
Find Deal
lun., 8 sep. - mar., 23 sep.
Cathay Pacific Logo
01:40 - 20:10BOS-SYD
28h 30m1 stop
Cathay Pacific Logo
07:40 - 23:00SYD-BOS
29h 20m1 stop
$2,198Cathay Pacific
Find Deal
jue., 11 sep. - sáb., 20 sep.
Qantas Airways Logo
12:00 - 07:05BOS-SYD
29h 05m1 stop
Qantas Airways Logo
09:10 - 16:39SYD-BOS
21h 29m1 stop
$2,281Qantas Airways
Find Deal
dom., 3 ago. - mar., 12 ago.
Qantas Airways Logo
08:00 - 08:05BOS-SYD
33h 05m1 stop
Qantas Airways Logo
14:30 - 18:55SYD-BOS
20h 25m1 stop
$2,298Qantas Airways
Find Deal
mar., 7 oct. - mar., 4 nov.
United Airlines Logo
18:11 - 08:15BOS-MEL
24h 04m1 stop
United Airlines Logo
10:55 - 19:38MEL-BOS
22h 43m1 stop
$2,423United Airlines
Find Deal
dom., 6 jul. - mar., 15 jul.
United Airlines Logo
07:45 - 06:30BOS-BNE
32h 45m2 stops
United Airlines Logo
10:30 - 17:13BNE-BOS
20h 43m1 stop
$2,428United Airlines
Find Deal
lun., 8 sep. - mar., 23 sep.

KAYAK's insights & trends for Boston to Australia flights

Get data-powered insights and trends into flights from Boston to Australia to help you find the cheapest flights, the best time to fly, and much more.

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

The average price for all round-trip flights from Boston to Australia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Australia is generally at night, when retur flights cost $1,348 on average. Morning departures are around 31% more expensive than evening flights, on average. The most expensive time of day to fly to Australia is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,956.

What is the cheapest month to fly from Boston to Australia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Australia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to Australia is April, when tickets cost $1,978 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $3,053 and $2,639 respectively.

What’s the cheapest day of the week to fly from Boston to Australia?

The average price of all round-trip flights from Boston to Australia clicked on KAYAK for each day over the last 12 months.
For Boston to Australia, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Australia back to Boston, the best deals are generally found on Sunday, with Saturday being the most expensive.

How far in advance should I book a flight from Boston to Australia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Australia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from Boston to Australia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low season

May

High season

December

Cheapest flight

$798
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (46% more expensive on average)
Flight from Boston to Melbourne

FAQs - booking Australia flights

  • Which airport in Australia should I fly to from Boston?

    Sydney Airport (SYD) is Australia's largest and busiest airport, servicing frequent international flights from Boston. The airport is an excellent fit for travelers seeking to explore Australia's largest city. This airport also features reliable and convenient connections to other cities and attractions in Australia, including domestic flights and ground transportation options. However, if you’re visiting Western Australia, book a flight to Perth International Airport (PER), which is the hub for international flights in this region.

  • Can I rent a car at airports in Australia?

    Yes. If you’d like to get behind the wheel during your stay in Australia, you’ll find car rental counters on-site at all major international airports in the country. Chauffeur services are also available, which may be a more comfortable option for first-timer visitors.

  • What are the public transportation options from SYD to the city center of Sydney?

    Public buses, taxis, and public transport rail offer frequent connections from SYD to downtown Sydney. You can catch a Sydney Bus to the city center from the arrivals levels of Terminals 1 and 3. However, you will need an Opal transport card for the Sydney Bus Service to the city center. Each terminal at SYD features a taxi rank, while the Airport Link train service to the city center is available from Terminals 1, 2, and 3.

  • What are some things to do during a layover at SYD?

    If you are stuck at SYD during a layover, you can pass time at the airport lounges, which are accessible by paying at poor or purchasing a membership pass. The airport also offers free shower facilities, ideal for freshening up after the long-haul flight from Boston. The airport shower facilities are located within Terminal 1.

  • How does KAYAK find such low prices on flights from Boston to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Australia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Boston to Australia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Australia

  • Flights from Boston to Australia include at least one layover along the way. The stopover is usually at Los Angeles International Airport (LAX) or San Francisco International Airport (SFO); however, this schedule may vary depending on the flight operator. The primary airlines servicing Boston to Australia flights include American Airlines, Delta, and Qantas Airlines.
  • You will need a valid US passport and a visa or an authorized Electronic Travel Authority (ETA) to enter Australia. If you hold a valid passport, you can acquire an Australian ETA, ideal for stays up to 90 days. The ETA remains valid for 12 months from the date of issue, and you can make several journeys of up to three months with the same permit throughout the year.
  • If you need to freshen up before your long-haul flight to Australia, you can use the showers available in the Club Lounge at Terminal E and the American Airlines Admirals Club at Terminal B. You can access the latter by paying at the door, while the former is exclusive to members only.
  • If you’d like to savor a meal before your long-haul flight from Boston to Australia, check out the dining options at Boston Logan International Airport (BOS). The airport features plenty of restaurants and cafes, with options in every terminal.
See more tips

Top 3 airlines serving from Boston to Australia

Need help choosing which airline to fly with from Boston 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.
7.5
Qantas AirwaysOverall score based on 826 reviews
7.2Entertainment
8.2Crew
6.9Food
7.7Boarding
7.4Comfort
Airline reviews

Loved the staff. The economy seats could have been bigger.

10.0 ExcellentCarolyn, Apr 2025LAX - SYD
Read more Qantas Airways reviews

Loved the staff. The economy seats could have been bigger.

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

I love flying with Qantas. There was no onscreen entertaining on this flight, and only a snack provided (not a meal) but still better than Jetstar or Virgin (in my opinion) so still happy.

The food was terrible. And the flight attendants were very rude. One flight attendant wouldn’t help a passenger lift their carry-on. Another flight attendant wouldn’t give a man an extra blanket. And they walked by not even looking at the passengers to see if they needed a glass of water.

Wheelchair assistance to move through the terminals and to/from the plane door was excellent. No vegan snack on the flight, only something with salami and cheese in it.

I have flown Qantas multiple times in the past it seemed this flight the plane had less seat room or the seats were way less comfortable than before. Everything else was about the same. Thanks

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

This flight didn't happen for me because of overbooking.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

Not enough electronic outlets for charging in the Air Canada waiting to board area but the Most important thing….the plane was booked to only 40% capacity and my row of 2 other seats were empty. My row happened to be one of the few rows that did NOT have raising arm rests. The flight attendant made effort to seat me in a different row. I needed wheelchair assistance due to a cyst on my knee and struggled to move from seat to seat to get to the row. Those 2 empty seats tormented me the entire 15+ hour flight as I had to be upright the entire flight and was not able to elevate my knee. Lots of other passengers were laying down due to the arm rest being able to retract. It is a shame that he couldn’t be gracious and find a row that I could move to.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

The boarding was relatively quick, the crew welcoming and flight uneventful. The omission of meals on all airlines is unacceptable especially when the flight is during a mealtime such as this one, (lunchtime), is unacceptable.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

Everything you need to know for your flight from Boston to Australia

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.