HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Singapore

$438+ Cheap flights from Boston (BOS) to Singapore

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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SIN
Jan 23 — Jan 301
Fri 1/23
Fri 1/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Singapore with Cheapflights

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 24, 2025.

This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:14 pmBOS - SIN
2 stops37h 01mUnited Airlines
Thu 1/1510:20 pmSIN - BOS
2 stops32h 41mUnited Airlines
Deal found 12/23$1,155
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:30 amBOS - SIN
2 stops33h 30mUnited Airlines
Thu 1/810:20 pmSIN - BOS
2 stops38h 26mUnited Airlines
Deal found 12/22$1,305
This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:15 amBOS - SIN
2 stops35h 45mUnited Airlines
Sat 1/1010:20 pmSIN - BOS
2 stops34h 45mUnited Airlines
Deal found 12/23$1,525
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:00 amBOS - SIN
1 stop44h 15mUnited Airlines
Thu 1/810:20 pmSIN - BOS
1 stop31h 53mUnited Airlines
Deal found 12/22$1,535
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:55 pmBOS - SIN
2 stops34h 20mUnited Airlines
Fri 1/910:10 amSIN - BOS
3 stops39h 36mUnited Airlines
Deal found 12/22$1,638
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:23 pmBOS - SIN
2 stops36h 52mUnited Airlines
Wed 1/710:20 pmSIN - BOS
2 stops34h 45mUnited Airlines
Deal found 12/21$1,645

Find flight deals from Boston to Singapore

Keep the following information in mind while searching for Boston to Singapore flight deals. Data was last updated December 24, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,032
(Delta)

One-way from

$438
(CheapOair)

Popular in

December

Cheapest in

November

Average price

$1,898
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
Search Deals
One-way flight from Boston Logan Intl to Singapore
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 24, 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

Sun 5/3

10:00 pm-8:50 am

1 stop22h 50m

Singapore Changi

Thu 5/28

7:40 pm-3:05 pm

1 stop31h 25m

$1,034

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sat 5/16

5:30 am-12:45 am

2 stops31h 15m

Singapore Changi

Thu 6/11

8:45 am-5:58 am

2 stops33h 13m

$1,042

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Wed 5/20

8:15 pm-6:35 pm

1 stop34h 20m

Singapore Changi

Wed 6/10

8:45 am-1:06 am

1 stop28h 21m

$1,052

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Wed 5/20

8:15 pm-6:35 pm

1 stop34h 20m

Singapore Changi

Tue 6/9

8:45 am-11:54 pm

2 stops27h 09m

$1,052

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Thu 2/5

1:50 pm-8:00 am

1 stop29h 10m

Singapore Changi

Thu 2/12

10:10 am-12:49 am

1 stop27h 39m

$1,052

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Tue 5/19

9:10 am-6:45 am

2 stops33h 35m

Singapore Changi

Thu 6/11

8:45 am-7:18 am

2 stops34h 33m

$1,055

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Mon 5/18

9:10 am-6:45 am

2 stops33h 35m

Singapore Changi

Wed 6/10

8:45 am-9:41 pm

1 stop24h 56m

$1,056

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Wed 5/20

9:50 am-6:45 am

2 stops32h 55m

Singapore Changi

Mon 6/8

8:45 am-9:41 pm

1 stop24h 56m

$1,056

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sat 1/24

8:00 pm-5:20 pm

2 stops32h 20m

$438

BostonSingapore

BOS - SIN

BOSSIN

Boston Logan Intl

Sat 1/24

3:40 pm-9:35 am

1 stop28h 55m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 18 results
1
2

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

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

Currently, March is the cheapest month in which you can book a flight from Boston to Singapore (average of $763). 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 SG?

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 December 24, 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 11% 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 Tuesday afternoons 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 December 24, 2025.
Peruse reviews from past customers who have flown with Korean Air, Cathay Pacific, and Qatar Airways from Boston to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,185 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
1,185 reviews
Korean Air
8.4
Very good
1,185 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
1,103 reviews
Korean Air
8.4
Very good
1,185 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
3,690 reviews
Korean Air
8.4
Very good
1,185 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
9,111 reviews
Korean Air
8.4
Very good
1,185 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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
4,113 reviews
Korean Air
8.4
Very good
1,185 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

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.

  • What airport do you fly from for flights from Boston to Singapore?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Singapore. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from Boston to Singapore?

    For as low as $1,034, Qatar Airways can have you in Singapore from Boston in 22h 50m. Airlines will cover a distance of 9393 mi. This flight may include one or multiple stops.

  • 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 $409 on United Airlines. Other airlines that offer cheap prices include Korean Air from $420 and Turkish Airlines from $428 one-way.

  • 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, March is the cheapest month in which you can book a flight from Boston to Singapore (average of $763). 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

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

Alternative routes for Boston to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Narita flights
Boston to Haneda flights
Boston to Suvarnabhumi flights
Boston to Incheon Intl flights
Boston to New Delhi flights
Boston to Ho Chi Minh City flights
Boston to Mumbai flights
Boston to Hongqiao Intl flights
Boston to Taiwan Taoyuan Intl flights
Boston to Manila flights
Boston to Pu Dong flights
Boston to Hong Kong flights
Boston to Capital flights
Boston to Beijing Daxing Intl flights
Boston to Hyderabad flights
Boston to Bangalore flights
Boston to Kathmandu flights
Boston to Sung Shan flights
Boston to Singapore flights
Boston to Gimpo Intl flights
Boston to Chennai flights
Hartford to Narita flights
Hartford to Haneda flights
Boston to Lahore flights
Boston to Ahmedabad flights
Boston to Denpasar flights
Boston to Kuala Lumpur Intl flights
Boston to Kansai Intl flights
Boston to Phuket City flights
Boston to Soekarno-Hatta Intl flights
Boston to Hanoi flights
Albany to Haneda flights
Boston to Islamabad flights
Albany to Narita flights
Boston to Osaka Itami flights
Boston to Chubu Centrair Intl flights
Boston to Fuzhou flights
Boston to Da Nang flights
Boston to Cebu City flights
Boston to Chitose flights
Boston to Malé flights
Boston to Guangzhou flights
Boston to Don Mueang Intl flights
Boston to Karachi flights
Hartford to Taiwan Taoyuan Intl flights
Boston to Dhaka flights
Boston to Colombo flights
Boston to Fukuoka flights
Boston to Cochin flights
Boston to Kobe 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 December 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$739Average$1,076FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$759Average$958FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$764Average$1,007FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$789Average$1,221FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$832Average$1,082FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$835Average$1,229FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$895Average$1,032FlexibilityNo cancel feeOn-time79%
DeltaCheapest$902Average$1,397FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$974Average$1,243FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$995Average$1,161FlexibilityNo cancel feeOn-time68%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.