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$159+ Cheap flights from Boston

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/10. 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.
BOS — SYD
15 Jul — 22 Jul1
1 adult

What to know about flights from Boston

Discover essential information about flights departing from Boston, including flight schedules, destinations, airlines operating at the Boston airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 10 July 2025.

Cheapest airline

American Airlines

Good round-trip deal

$73 or less

Good one-way deal

$75 or less
On average, American Airlines currently has the cheapest one-way flight from Boston Logan Intl (avg. price of $442).
Price to beat on a round-trip flight from Boston Logan Intl.
Price to beat on a one-way flight from Boston Logan Intl.

Find flights from Boston

Cheapest flights from Boston
Explore the most affordable flight options available from Boston. Find the lowest fares based on data from user searches, with prices last updated on 10 July 2025.

Mon 8/919:15BOS - STN
1 stop10h 25mPLAY
Thu 11/911:40STN - BOS
1 stop11h 10mPLAY
Deal found 9/7$773
Wed 24/920:05BOS - STN
1 stop17h 55mLufthansa
Sun 28/919:50STN - BOS
1 stop26h 50mLufthansa
Deal found 8/7$808
Mon 25/823:40BOS - LTN
1 stop16h 45mMultiple Airlines
Wed 27/810:00LTN - BOS
2 stops13h 25mMultiple Airlines
Deal found 8/7$918
Wed 30/717:40BOS - TRF
1 stop12h 55mScandinavian Airlines
Sat 9/817:10TRF - BOS
1 stop28h 25mScandinavian Airlines
Deal found 9/7$1,419
Fri 28/1117:00BOS - BNE
1 stop23h 45mDelta
Fri 5/1210:45BNE - BOS
1 stop25h 53mDelta
Deal found 10/7$1,632
Mon 15/1217:58BOS - BNE
1 stop22h 32mUnited Airlines
Thu 15/111:40BNE - BOS
1 stop22h 48mUnited Airlines
Deal found 10/7$1,633
Thu 14/823:35BOS - TRF
2 stops12h 25mMultiple Airlines
Tue 26/812:15TRF - BOS
2 stops12h 35mMultiple Airlines
Deal found 9/7$1,754
Wed 17/901:40BOS - PVG
1 stop26h 45mCathay Pacific
Mon 20/1014:30PVG - BOS
1 stop20h 30mCathay Pacific
Deal found 9/7$1,776
Thu 4/912:15BOS - MEL
3 stops33h 20mAir Canada
Wed 17/920:30MEL - BOS
3 stops40h 09mAir Canada
Deal found 10/7$1,817
Thu 18/906:02BOS - PVG
1 stop23h 43mUnited Airlines
Tue 21/1012:10PVG - BOS
2 stops23h 49mUnited Airlines
Deal found 9/7$1,845
Sat 9/812:55BOS - PVG
1 stop32h 45mKorean Air
Sun 7/908:50PVG - BOS
1 stop37h 20mKorean Air
Deal found 8/7$1,860
Tue 28/1012:00BOS - BNE
1 stop27h 00mQantas Airways
Thu 13/1118:30BNE - BOS
2 stops37h 31mQantas Airways
Deal found 9/7$1,877

Find flights from Boston within your budget

Find flights departing from Boston that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 10 July 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 8/9

19:15-10:40

1 stop10h 25m

London Stansted

Thu 11/9

11:40-17:50

1 stop11h 10m

$773

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 24/9

20:05-19:00

1 stop17h 55m

London Stansted

Sun 28/9

19:50-17:40

1 stop26h 50m

$808

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 25/8

23:40-21:25

1 stop16h 45m

London Luton

Wed 27/8

10:00-18:25

2 stops13h 25m

$918

BostonOslo

BOS - TRF

BOSTRF

Boston Logan Intl

Wed 30/7

17:40-12:35

1 stop12h 55m

Oslo Sandefjord

Sat 9/8

17:10-15:35

1 stop28h 25m

$1,419

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Fri 28/11

17:00-07:45

1 stop23h 45m

Brisbane

Fri 5/12

10:45-21:38

1 stop25h 53m

$1,632

BostonBrisbane

BOS - BNE

BOSBNE

Boston Logan Intl

Mon 15/12

17:58-07:30

1 stop22h 32m

Brisbane

Thu 15/1

11:40-19:28

1 stop22h 48m

$1,633

BostonOslo

BOS - TRF

BOSTRF

Boston Logan Intl

Thu 14/8

23:35-18:00

2 stops12h 25m

Oslo Sandefjord

Tue 26/8

12:15-18:50

2 stops12h 35m

$1,754

BostonShanghai

BOS - PVG

BOSPVG

Boston Logan Intl

Wed 17/9

01:40-12:10

1 stop22h 30m

Shanghai Pu Dong

Wed 22/10

13:25-23:00

1 stop21h 35m

$1,776

BostonMelbourne

BOS - MEL

BOSMEL

Boston Logan Intl

Thu 4/9

12:15-11:35

3 stops33h 20m

Melbourne

Wed 17/9

20:30-22:39

3 stops40h 09m

$1,817

BostonShanghai

BOS - PVG

BOSPVG

Boston Logan Intl

Thu 18/9

08:15-17:45

1 stop21h 30m

Shanghai Pu Dong

Thu 16/10

12:10-23:59

2 stops23h 49m

$1,845

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 60 results
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Best time to book a flight from Boston

Have a flexible travel schedule? Discover the best time to fly from Boston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Boston

Get recent, data-driven insights about flights from Boston including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Boston?

Use this chart to determine the optimal time to book a return flight from Boston to Sydney. Price data was last updated on 27 June 2025.

The best time to book flights from Boston is 14 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boston?

Currently, September is the cheapest month in which you can book a flight from Boston (average of $409). Flying from Boston in December will prove the most costly (average of $1,840). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Airline reviews for flights from Boston

Get insights into the airlines that provide service from Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Boston. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Get a feel of what it's like to fly with ANA, Alaska Airlines, andDelta from Boston by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.7

Boarding

8.6

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
8.4
Very Good

Crew

8.7

Boarding

8.6

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!

Crew

8.7

Boarding

8.6

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
8.0
Very Good

Crew

8.7

Boarding

8.6

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!

Crew

8.7

Boarding

8.6

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!

Crew

8.7

Boarding

8.6

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!

Browse thousands of different options on Cheapflights for your next trip

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Related info for your journey

Access useful and relevant information related to your journey from Boston. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 10 July 2025.
  • What are the most popular destinations to fly to from Boston?

    For the current month, the most popular flights from Boston are Athens, Barcelona-El Prat Airport, Atlanta. Barcelona-El Prat Airport, Atlanta, Athens are the most popular locations from Boston year round.

  • What is the cheapest flight from Boston to anywhere?

    Users have flown out of Boston for as low as $73 to Baltimore (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,984 to fly from Boston.

  • What are the cheapest airlines flying from Boston to anywhere?

    According to our data, users have found Spirit Airlines, American Airlines, and Alaska Airlines to have the cheapest round-trip prices from Boston. Some of the destinations and prices are as follows: Spirit Airlines flights from Boston to Baltimore/Washington ($73). American Airlines flights from Boston to Los Angeles ($288). Alaska Airlines flights from Boston to Seattle/Tacoma Intl ($291).

  • What is the cheapest premium economy flight from Boston?

    Options for some of the cheapest premium economy flights from Boston we have found on Cheapflights are as follows:
    Fly from Boston Logan Intl to Louisville starting at $657
    Fly from Boston Logan Intl to Mexico City starting at $1,202
    Fly from Boston Logan Intl to Seattle starting at $2,187
    Fly from Boston Logan Intl to Washington, D.C. Dulles Intl Airport starting at $2,492

  • What is the cheapest first class flight from Boston?

    If you’re looking to fly first-class from Boston to anywhere, put Miami on your list as prices start at $1,497 for this destination.

  • What is the cheapest month to fly from Boston?

    Currently, the cheapest month for flights from Boston is September. The most expensive month for flights is December. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Boston?

    View the cheapest flight destinations from Boston:
    Fly from Boston to London from $533 round trip
    Fly from Boston to Sydney from $1,528 round trip

  • How does Cheapflights help users find flights from Boston?

    Cheapflights makes it easy to find flights from Boston by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

  • Why should you use Cheapflights to find cheap flight tickets from Boston?

    Cheapflights simply makes it quick and affordable to book flights from Boston by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from Boston with no change fees?

    Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston flexibly with Cheapflights today.

  • Can Cheapflights notify me if prices for flights from Boston become cheaper?

    Not ready to book yet? You can track prices for flights from Boston on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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How does Cheapflights help users find flights from Boston?

Cheapflights makes it easy to find flights from Boston by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Boston?

Cheapflights simply makes it quick and affordable to book flights from Boston by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Boston with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Boston become cheaper?

Not ready to book yet? You can track prices for flights from Boston on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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