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$439+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SIN
May 25 — Jun 11
Mon 5/25
Mon 6/1
1 adult, Economy
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Cheap 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 April 25, 2026.

This CrystalTravel deal was found by Cheapflights users on 4/21. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Tue 5/269:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/21$934
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Tue 5/269:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/23$938
This CrystalTravel deal was found by Cheapflights users on 4/23. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Mon 9/219:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/23$954
This KAYAK deal was found by Cheapflights users on 4/23. 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 5/114:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Wed 5/279:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/23$956
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:40 pm
BOS
-
SIN
1 stop28h 55m
Etihad Airways
Mon 11/167:25 pm
SIN
-
BOS
1 stop31h 45m
Etihad Airways
Deal found 4/22$980
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:50 pm
BOS
-
SIN
1 stop23h 40m
Turkish Airlines
Thu 10/225:25 am
SIN
-
BOS
1 stop26h 30m
Turkish Airlines
Deal found 4/23$986
This FlightHub deal was found by Cheapflights users on 4/23. 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.
Mon 10/124:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Mon 10/199:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/23$990
This Ovago deal was found by Cheapflights users on 4/23. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/164:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Tue 5/269:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/23$991
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Tue 10/209:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/23$998
This CrystalTravel deal was found by Cheapflights users on 4/23. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:00 pm
BOS
-
SIN
1 stop22h 50m
Qatar Airways
Wed 10/217:40 pm
SIN
-
BOS
1 stop31h 35m
Qatar Airways
Deal found 4/23$1,001
This Ovago deal was found by Cheapflights users on 4/23. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:45 am
BOS
-
SIN
1 stop22h 40m
Cathay Pacific
Wed 10/211:25 pm
SIN
-
BOS
1 stop21h 40m
Cathay Pacific
Deal found 4/23$1,004
This Gotogate deal was found by Cheapflights users on 4/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:25 pm
BOS
-
SIN
1 stop29h 15m
Etihad Airways
Tue 10/139:00 pm
SIN
-
BOS
1 stop29h 40m
Etihad Airways
Deal found 4/22$1,007

Find 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 April 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$934
(CrystalTravel)

One-way from

$439
(Jettzy)

Popular in

December

Cheapest in

November

Average price

$923
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. 10% potential increase in price ($131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 25, 2026.
Use the filters below to find and compare flights from Boston to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Tue 8/18

6:00 am-6:35 pm

1 stop24h 35m

Singapore Changi

Tue 8/25

8:35 pm-5:36 pm

2 stops33h 01m

$1,171

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Mon 5/25

11:05 pm-8:35 am

1 stop21h 30m

Singapore Changi

Fri 6/12

9:00 pm-2:10 pm

1 stop29h 10m

$1,235

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Thu 5/14

11:05 pm-3:00 pm

1 stop27h 55m

Singapore Changi

Thu 5/28

9:00 pm-2:10 pm

1 stop29h 10m

$1,285
Quickest round-trip

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Thu 5/21

11:05 pm-8:35 am

1 stop21h 30m

Singapore Changi

Wed 5/27

1:40 am-2:10 pm

1 stop24h 30m

$1,285

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Fri 8/14

10:00 pm-3:45 pm

1 stop29h 45m

Singapore Changi

Sat 8/29

3:15 am-8:46 pm

2 stops29h 31m

$1,426

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sun 7/19

11:05 pm-9:45 pm

1 stop34h 40m

Singapore Changi

Sat 8/8

10:35 am-2:10 pm

1 stop39h 35m

$1,439

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sat 6/6

10:35 am-2:05 pm

2 stops63h 30m

Singapore Changi

Sat 6/13

10:35 am-2:10 pm

1 stop39h 35m

$1,447

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Thu 5/14

5:02 pm-4:15 pm

2 stops35h 13m

Singapore Changi

Wed 5/27

1:30 am-7:56 am

2 stops42h 26m

$1,475

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Tue 8/11

10:40 am-9:30 pm

2 stops46h 50m

Singapore Changi

Tue 8/18

7:00 am-2:41 pm

2 stops43h 41m

$1,539

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sat 7/4

5:46 pm-9:40 am

2 stops27h 54m

Singapore Changi

Tue 7/14

9:00 pm-2:40 pm

1 stop29h 40m

$1,545

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 22 resultsSorted by cheapest first
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
business-class.comPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Singapore flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

Booking 15 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, November is the cheapest month in which you can book a flight from Boston to Singapore (average of $919). Flying from Boston to Singapore in December is currently the most expensive (average of $1,897). 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 to fly round-trip from Boston to Singapore?

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 April 25, 2026.
Read reviews from past customers who have flown Korean Air,Cathay Pacific, andTurkish Airlines 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
1,212 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

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
1,212 reviews
Korean Air
8.4
Very good
1,212 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

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
1,299 reviews
Korean Air
8.4
Very good
1,212 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

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
7.4
Good
4,330 reviews
Korean Air
8.4
Very good
1,212 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

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
9,651 reviews
Korean Air
8.4
Very good
1,212 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

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.
JetBlue
7.2
Good
2,955 reviews
Korean Air
8.4
Very good
1,212 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

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 $1,227, United Airlines can have you in Singapore from Boston in 21h 30m. 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 Turkish Airlines is currently your cheapest option to Singapore, with prices starting at $740. Additional round-trip tickets that might be worth considering are offered by Japan Airlines and Korean Air, with the lowest prices starting at $750 and $764, respectively. Turkish Airlines is currently priced 36% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Boston to Singapore one-way?

    One-way options have recently been found by users for as low as $367 on Cathay Pacific. Other airlines that offer cheap prices include Korean Air from $408 and United Airlines from $409 one-way.

  • 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.

  • 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 Shatin Baptist Church, Fa Yeun Street Market, and Temple Street Night Market. Shatin Baptist Church, Fa Yeun Street Market, and Temple Street Night Market can be accessed by traveling approximately 18.3 mi, 16.2 mi, and 16.1 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 $55 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 San Francisco. San Francisco is followed by Istanbul in terms of the least popular layover location on flights from Boston to Singapore.

  • 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, November is the cheapest month in which you can book a flight from Boston to Singapore (average of $919). Flying from Boston to Singapore in December is currently the most expensive (average of $1,897). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$740Average$903FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$750Average$1,100FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$764Average$842FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$788Average$1,114FlexibilityNo cancel feeOn-time75%
Cathay PacificCheapest$789Average$958FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$811Average$1,623FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$826Average$1,069FlexibilityNo cancel feeOn-time69%
DeltaCheapest$902Average$1,390FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$957Average$1,078FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$1,015Average$1,822FlexibilityNo cancel feeOn-time62%

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