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$450+ Cheap flights from Boston (BOS) to Singapore (SIN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SIN
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Boston Logan Intl to Singapore Changi are usually found in November or March, booked 16 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Find flight deals from Boston to Singapore

Cheapest flights from Boston to Singapore
Explore the most affordable flight options available from Boston to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 29, 2025.

This Mytrip deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:30 amBOS - SIN
2 stops32h 30mMultiple Airlines
Fri 12/1212:25 amSIN - BOS
2 stops34h 35mMultiple Airlines
Deal found 11/27$1,180
This oojo deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:30 amBOS - SIN
1 stop34h 55mCathay Pacific
Tue 2/310:00 amSIN - BOS
1 stop25h 00mCathay Pacific
Deal found 11/28$1,212
This oojo deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:45 pmBOS - SIN
1 stop35h 30mQatar Airways
Wed 2/48:15 pmSIN - BOS
1 stop31h 05mQatar Airways
Deal found 11/28$1,291
This FlightHub deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/712:30 amBOS - SIN
1 stop22h 25mCathay Pacific
Tue 12/238:15 pmSIN - BOS
1 stop38h 45mCathay Pacific
Deal found 11/27$1,296
This FlightHub deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/712:30 amBOS - SIN
1 stop22h 25mCathay Pacific
Sun 12/218:15 pmSIN - BOS
1 stop38h 45mCathay Pacific
Deal found 11/27$1,311
This United Airlines deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amBOS - SIN
1 stop25h 15mUnited Airlines
Sun 12/2110:10 amSIN - BOS
2 stops25h 38mUnited Airlines
Deal found 11/27$1,321
This United Airlines deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amBOS - SIN
1 stop25h 15mUnited Airlines
Sun 12/2110:10 amSIN - BOS
2 stops25h 38mUnited Airlines
Deal found 11/27$1,322
This United Airlines deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:47 pmBOS - SIN
2 stops38h 28mUnited Airlines
Mon 1/1210:10 amSIN - BOS
2 stops39h 09mUnited Airlines
Deal found 11/27$1,326
This United Airlines deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:00 amBOS - SIN
1 stop25h 15mUnited Airlines
Tue 1/2010:20 pmSIN - BOS
2 stops29h 10mUnited Airlines
Deal found 11/28$1,327
This oojo deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:30 amBOS - SIN
1 stop23h 35mCathay Pacific
Wed 12/101:25 amSIN - BOS
1 stop33h 35mCathay Pacific
Deal found 11/28$1,337
This Delta deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:45 pmBOS - SIN
2 stops41h 25mDelta
Tue 2/31:35 amSIN - BOS
2 stops33h 56mDelta
Deal found 11/28$1,377
This KAYAK deal was found by Cheapflights users on 11/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amBOS - SIN
2 stops29h 55mANA
Sun 12/2110:20 pmSIN - BOS
2 stops29h 00mANA
Deal found 11/27$1,380

Cheap flight deals from Boston to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 29, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,164
(Delta)

One-way from

$450
(CrystalTravel)

Popular in

December

Cheapest in

November

Average price

$946
Provider with most accurate pricing for Boston Logan Intl-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Singapore Changi flights.
Search Deals
From Boston Logan Intl to Singapore Changi
Search Deals
One-way flight from Boston Logan Intl to Singapore Changi
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 29, 2025.
Use the filters below to find and compare flights from Boston to Singapore that are best for you.

Fly from

Boston

Fly to

Singapore

Route

Depart

Return

Price

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Tue 4/14

9:50 pm-5:20 pm

2 stops31h 30m

Singapore Changi

Fri 4/17

2:30 am-9:27 pm

3 stops30h 57m

$1,167

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sun 2/8

8:40 pm-4:40 pm

2 stops31h 00m

Singapore Changi

Wed 2/11

3:15 am-8:03 pm

2 stops29h 48m

$1,216

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Wed 5/20

9:50 am-6:45 am

2 stops32h 55m

Singapore Changi

Sun 6/14

8:40 pm-12:47 pm

2 stops28h 07m

$1,228

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Tue 5/19

9:50 am-6:45 am

2 stops32h 55m

Singapore Changi

Sun 6/14

8:40 pm-12:47 pm

2 stops28h 07m

$1,228

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Mon 5/18

12:55 pm-5:00 am

1 stop28h 05m

Singapore Changi

Sun 6/14

10:30 pm-4:37 pm

2 stops30h 07m

$1,243

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Tue 5/19

11:05 pm-2:05 pm

1 stop27h 00m

Singapore Changi

Sun 6/14

10:35 am-2:10 pm

1 stop39h 35m

$1,309

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sun 5/17

11:05 pm-8:35 am

1 stop21h 30m

Singapore Changi

Sat 6/13

10:35 am-2:10 pm

1 stop39h 35m

$1,309

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sat 2/7

12:30 am-7:15 pm

1 stop29h 45m

Singapore Changi

Thu 2/12

7:40 am-6:56 pm

2 stops24h 16m

$1,361

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sun 2/8

12:30 am-11:55 am

1 stop22h 25m

Singapore Changi

Sun 2/15

1:25 am-6:56 pm

2 stops30h 31m

$1,457

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Mon 1/5

7:44 pm-6:55 am

2 stops46h 11m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

Showing 1-10 of 19 results
1
2

Compare providers for flights from Boston to Singapore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Singapore in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Singapore flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Boston-Singapore flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Boston-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Singapore flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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.

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?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Singapore. Price data was last updated on November 21, 2025.

Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Boston to Singapore (average of $764). Flying from Boston to Singapore in June is currently the most expensive (average of $1,128). 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.

What is the cheapest time of day to fly from BOS to SIN?

Find hourly flight availability from Boston to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 29, 2025.

One of the essential ways to save on airfare from Boston to Singapore is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 5% on airfare.

What is the cheapest day to fly from Boston to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Boston to Singapore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Singapore flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated November 29, 2025.
Read reviews from past customers who have flown Korean Air, Cathay Pacific, and Qatar Airways from Boston to Singapore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,174 reviews

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,174 reviews
Korean Air
8.4
Very good
1,174 reviews

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
1,076 reviews
Korean Air
8.4
Very good
1,174 reviews

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Qatar Airways
7.4
Good
3,677 reviews
Korean Air
8.4
Very good
1,174 reviews

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
9,057 reviews
Korean Air
8.4
Very good
1,174 reviews

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Turkish Airlines
7.3
Good
4,069 reviews
Korean Air
8.4
Very good
1,174 reviews

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Boston to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Singapore?

    For as low as $1,216, Qatar Airways can have you in Singapore from Boston in 31h. Airlines will cover a distance of 9393 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to Singapore round-trip?

    Flying on Korean Air is currently your cheapest option to Singapore, with prices starting at $764. Additional round-trip tickets that might be worth considering are offered by Turkish Airlines and Air Canada, with the lowest prices starting at $765 and $832, respectively. Korean Air is currently priced 34% below the average price you’ll pay for this route.

  • Where are the most common layover locations when flying from Boston to Singapore?

    Boston to Singapore flights have a layover in Hong Kong most of the time. Tokyo sees the second most layovers for non-direct flights flying from Boston to Singapore. Istanbul comes next as the third most popular layover location for Boston to Singapore flights.

  • What are some popular things to do or see while on a layover in Hong Kong?

    Most Hong Kong visitors opt to spend their time experiencing Hong Kong Disneyland, Shatin Baptist Church, and Fa Yeun Street Market. Hong Kong Disneyland, Shatin Baptist Church, and Fa Yeun Street Market can be accessed by traveling approximately 7.8 mi, 18.3 mi, and 16.2 mi, respectively from Hong Kong Intl.

  • What are some popular points of interest to see during a layover in Tokyo?

    Tokyo travelers tend to visit Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower more than any other notable places. Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower can be accessed by traveling approximately 34.6 mi, 35.3 mi, and 36.7 mi, respectively from Tokyo Narita. Travelers can rent a car at Tokyo Narita for an average daily rate of $53 to make sightseeing during their layover a little easier.

  • What are points of interest worth seeing during a layover in Istanbul?

    Istanbul travelers tend to visit Taksim Square, Beyazit Meydani, and Laleli Camii more than any other attractions. Taksim Square, Beyazit Meydani and Laleli Camii are located about 20.8 mi, 21.7 mi, and 21.5 mi, respectively from Istanbul if you are interested in checking them out. Travelers can rent a car at Istanbul for an average daily rate of $32 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Boston to Singapore flights?

    Boston to Singapore flights that have layovers will least frequently stop in Doha. Doha is followed by Seoul in terms of the least popular layover location on flights from Boston to Singapore. San Francisco sees the third fewest flights with layovers for the Boston to Singapore route.

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Boston to Singapore (average of $764). Flying from Boston to Singapore in June is currently the most expensive (average of $1,128). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Hartford to Singapore flights
Albany to Singapore flights
Worcester to Singapore flights

Top 10 airlines flying from Boston to Singapore

Discover the top 10 airlines that operate flights from Boston to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$764Average$1,002FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$765Average$940FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$832Average$1,776FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$835Average$1,217FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$858Average$1,081FlexibilityNo cancel feeOn-time72%
Japan AirlinesCheapest$871Average$1,016FlexibilityNo cancel feeOn-time79%
Etihad AirwaysCheapest$895Average$1,237FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$897Average$1,065FlexibilityNo cancel feeOn-time71%
DeltaCheapest$902Average$1,440FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$995Average$1,169FlexibilityNo cancel feeOn-time68%

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