Cheap flights from Sydney to Boston from $494
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Boston departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Sydney to Boston
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Alaska Airlines flights from Sydney to Boston
Our best Alaska Airlines deals on Sydney to Boston flight tickets
Cathay Pacific flights from Sydney to Boston
Our best Cathay Pacific deals on Sydney to Boston flight tickets
See travel insights to Boston from
How to get the cheapest flight ticket from Sydney to Boston
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Sydney and Boston?
What is the cheapest month to fly to Boston?
In general, February is the cheapest month to fly from Sydney to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,203. If you aren’t able to travel during the month of February, then book flights to Boston from Sydney during March instead. Flights to Boston in March, while not as cheap as those in February, still average around $1,203.
What is the cheapest day to depart on your flight to Boston?
The cheapest day to depart from Sydney to Boston is on a Thursday when prices can be found for as low as $1,280. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Saturday is $2,147.
What is the cheapest time of day to depart on your flight to Boston?
According to our data, the cheapest time of day to fly to Boston is in the morning. momondo users have found flights departing from Sydney to Boston in the morning for as low as $1,444. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $1,844 per ticket.
How far in advance should I book a flight to Boston?
You are more likely to see cheaper flights to Boston from Sydney when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $1,386 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Sydney for as low as $1,185 on momondo.
What is the cheapest airline that flies from Sydney Kingsford Smith to Boston Logan Intl?
Air Canada, United Airlines, and Delta are the most popular carriers operating from Sydney Kingsford Smith to Boston Logan Intl
What airlines fly to Boston?
United Airlines, Qantas Airways and American Airlines are the top three most popular airlines that fly to Boston from Sydney according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 5 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.
When to book flights from Sydney to Boston
Cheap Sydney to Boston (SYD to BOS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Sydney to Boston
How far is Sydney Kingsford Smith to Boston Logan Intl by plane?
The distance between Sydney Kingsford Smith and Boston Logan Intl is about 10084.4 mi. Flights usually cover this in 20h 51m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport?
Prices for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport?
As of June 2025, there are 5 operators available to choose from for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Boston Logan Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sydney to Boston?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Sydney to Boston is United Airlines (36% of total bookings). The next most popular airlines are Qantas Airways (22%), American Airlines (20%), and Delta (11%).
Best airlines flying from Sydney to Boston
Compare and see reviews for airlines that fly from Sydney to Boston with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $895 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $1,081 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $1,120 | Free Cancellation | Rating 7.5 854 reviews | |||
| PriceFrom $1,280 | Free Cancellation | Rating 7.5 407 reviews | |||
| PriceFrom $1,344 | Free Cancellation | Rating 8.0 7,946 reviews |
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Sydney to Boston?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Boston for you.
Can I find flights from Sydney to Boston with flexible booking policies on momondo?
Yes. All flights to Boston from Sydney on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Sydney to Boston?
Once you have performed a search for Sydney to Boston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Sydney to Boston right now. Can momondo alert me if prices change?
Price alerts on flights to Boston from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.