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Cheap flights from Boston to Singapore from £351

BOS — SIN
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Singapore

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Singapore

Sun 15/1120:26 -
2 stops34h 49m
Tue 24/1110:10 -
1 stop22h 09m
Deal found 9/9£683
Mon 2/1106:00 -
2 stops34h 00m
Mon 16/1122:30 -
1 stop23h 20m
Deal found 8/9£685
Tue 3/1113:29 -
2 stops28h 26m
Thu 3/1210:10 -
1 stop24h 14m
Deal found 9/9£687
Thu 17/906:00 -
1 stop24h 35m
Mon 21/920:35 -
1 stop23h 39m
Deal found 9/9£719
Tue 3/1111:10 -
1 stop28h 50m
Thu 3/1222:30 -
1 stop23h 20m
Deal found 9/9£720
Thu 24/912:55 -
1 stop28h 05m
Sun 11/1022:00 -
1 stop24h 10m
Deal found 8/9£721
Thu 5/1109:30 -
2 stops32h 25m
Fri 13/1110:10 -
1 stop24h 14m
Deal found 7/9£724
Wed 28/1018:01 -
1 stop38h 14m
Wed 4/1110:10 -
2 stops26h 49m
Deal found 7/9£725
Tue 6/1009:30 -
2 stops33h 10m
Wed 21/1008:45 -
2 stops27h 14m
Deal found 5/9£725

Find flight deals from Boston to Singapore

Round-trip from

£683

One-way from

£351

Popular in

December

Cheapest in

April

Average price

£753
United Airlines
  • United Airlines
  • 15/11-24/11
  • 3 total stops
  • 56h 58m total
  • Boston to Singapore
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Korean Air
  • Korean Air
  • 25/11-31/12
  • 1 total stop
  • 24h 05m total
  • Boston to Singapore
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£75 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£35 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to Singapore that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest return flight

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Thu 12/11

08:25-06:55

2 stops33h 30m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£354

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Mon 2/11

13:32-00:55

3 stops46h 23m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£371

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Thu 17/9

08:00-06:15

2 stops34h 15m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£379

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Tue 22/9

12:37-06:15

2 stops29h 38m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£379

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Wed 7/10

05:45-18:35

3 stops48h 50m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£383

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Sun 25/10

18:05-06:55

2 stops48h 50m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£394
Fastest return journey

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Fri 6/11

11:10-05:00

1 stop28h 50m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£398

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Fri 30/10

05:30-06:55

3 stops37h 25m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£434

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Sat 9/1

11:10-21:55

1 stop45h 45m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£498

BostonSingapore

BOS Boston Logan Intl - SIN Singapore Changi

BOSSIN

Boston Logan Intl

Sat 9/1

05:45-06:55

3 stops36h 10m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£502

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Boston to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Boston with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Boston to Singapore

How far ahead should I book a flight from Boston to Singapore?

To ensure you get the cheapest price possible for a flight from Boston to Singapore, you should look to book at least 15 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, April is the cheapest month in which you can book a flight from Boston to Singapore (average of £656). Flying from Boston to Singapore in December is currently the most expensive (average of £1,395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Boston to Singapore?

Airfare is typical for this route at the moment.

Boston to Singapore flights typically cost between £624 and £941 in November.
The cheapest return price found within the last 5 days was £683 on United Airlines (15 Nov–24 Nov).

Related info for your journey

  • How long is the flight from Boston to Singapore?

    United Airlines can get you from Boston to Singapore in just under 34h 31m. Your travel time can differ by up to . The distance from Boston to Singapore is about 9393 mi.

  • Can I find deals for flights from Boston to Singapore that include hotel bookings?

    Yes. In addition to deals on Boston to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Singapore.

  • Can I find deals for business class flights from Boston to Singapore?

    Yes. Cheapflights offers flight deals from Boston to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, April is the cheapest month in which you can book a flight from Boston to Singapore (average of £656). Flying from Boston to Singapore in December is currently the most expensive (average of £1,395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from Boston to Singapore?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Singapore. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Singapore from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to Singapore with no change fees?

Certainly. Search results for flights to Singapore from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Boston to Singapore flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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