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S$ 599 Find Cheap Flights from Boston to Singapore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Singapore departing on 7-4. 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.
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Best Singapore Flight Deals from Boston

Cheapest return prices found by our users on KAYAK in the last 72 hours

Singapore
Singapore1 stopS$ 1,146

Cheap Flight Deals from Boston to Singapore (BOS-SG0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Boston to Singapore

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Boston to Singapore.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
21:35 - 17:55BOS-SIN
32h 20m1 stop
23:10 - 19:40SIN-BOS
32h 30m1 stop
S$ 1,146Turkish Airlines
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Mon, 1 Sep - Thu, 11 Sep
21:35 - 17:55BOS-SIN
32h 20m1 stop
23:10 - 19:40SIN-BOS
32h 30m1 stop
S$ 1,161Turkish Airlines
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Wed, 27 Aug - Wed, 17 Sep
01:40 - 19:05BOS-SIN
29h 25m1 stop
12:45 - 23:00SIN-BOS
22h 15m1 stop
S$ 1,263Cathay Pacific
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Tue, 26 Aug - Wed, 17 Sep
15:20 - 07:05BOS-SIN
27h 45m2 stops
09:10 - 09:35SIN-BOS
36h 25m2 stops
S$ 1,284Air Canada
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Tue, 6 May - Tue, 27 May
01:40 - 11:45BOS-SIN
22h 05m1 stop
13:25 - 23:00SIN-BOS
21h 35m1 stop
S$ 1,285Cathay Pacific
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Sun, 14 Sep - Thu, 25 Sep
15:20 - 07:05BOS-SIN
51h 45m2 stops
09:10 - 10:04SIN-BOS
36h 54m2 stops
S$ 1,286Air Canada
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Mon, 15 Sep - Thu, 25 Sep
16:30 - 09:40BOS-SIN
29h 10m1 stop
21:10 - 14:55SIN-BOS
29h 45m1 stop
S$ 1,309Etihad Airways
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Mon, 5 May - Sun, 18 May
08:05 - 23:40BOS-SIN
27h 35m2 stops
01:10 - 23:56SIN-BOS
34h 46m2 stops
S$ 1,342Delta
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Tue, 22 Jul - Mon, 8 Sep
16:30 - 09:40BOS-SIN
29h 10m1 stop
21:10 - 14:55SIN-BOS
29h 45m1 stop
S$ 1,369Etihad Airways
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Mon, 5 May - Sun, 1 Jun
05:40 - 05:00BOS-SIN
35h 20m2 stops
01:10 - 23:58SIN-BOS
34h 48m2 stops
S$ 1,477Delta
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Mon, 1 Sep - Wed, 10 Sep

KAYAK's insights & trends for Boston to Singapore flights

Get data-powered insights and trends into flights from Boston to Singapore to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest time of day to fly to Singapore?

The average price for all round-trip flights from Boston to Singapore depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Singapore is generally in the evening, when retur flights cost S$ 1,104 on average. Morning departures are around 81% more expensive than evening flights, on average. The most expensive time of day to fly to Singapore is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 2,003.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Singapore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to Singapore is March, when tickets cost S$ 1,301 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is S$ 2,737 and S$ 1,921 respectively.

What’s the cheapest day of the week to fly from Boston to Singapore?

The average price of all round-trip flights from Boston to Singapore clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Singapore on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Boston to Singapore. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from Boston to Singapore, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.
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Good to know

Low season

April

High season

December

Cheapest flight

S$ 599
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (70% more expensive on average)
Flight from Boston to Singapore

FAQs - booking Singapore flights

  • How does KAYAK find such low prices on flights from Boston to Singapore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Singapore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Singapore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Singapore is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Boston to Singapore with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Singapore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Boston to Singapore

Need help choosing which airline to fly with from Boston to Singapore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7891 reviews
8.2Boarding
7.3Food
8.0Comfort
8.5Crew
7.9Entertainment
Airline reviews

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

2.0 MediocreAnonymous, Mar 2025JFK - ATL
Read more Delta reviews

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Friendly flight attendants, smooth 8-9 hours flight. Economy seats are small and uncomfortable as usual.

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

Seats are much much more comfortable than United, which is what I usually fly

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

Information on your arrival and departure airports

Boston (BOS)

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