S$ 451 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 21-9. 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.
1 adult
1 adult, Economy

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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$ 934
Singapore
Singapore1 stopS$ 934

Cheap Flights from Boston to Singapore

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to Singapore

Πεμ, 13 Νοε - Πεμ, 20 Νοε
Turkish Airlines Logo
20:00 - 17:35BOS-SIN
32h 35m1 stop
Turkish Airlines Logo
10:25 - 18:05SIN-BOS
44h 40m1 stop
S$ 934Turkish Airlines
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Τρι, 21 Οκτ - Τρι, 18 Νοε
Turkish Airlines Logo
21:35 - 17:55BOS-SIN
32h 20m1 stop
Turkish Airlines Logo
23:25 - 18:05SIN-BOS
31h 40m1 stop
S$ 945Turkish Airlines
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Τρι, 21 Οκτ - Τρι, 18 Νοε
Turkish Airlines Logo
21:35 - 08:45BOS-SIN
23h 10m1 stop
Turkish Airlines Logo
23:25 - 18:05SIN-BOS
31h 40m1 stop
S$ 958Turkish Airlines
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Τετ, 4 Φεβ - Τετ, 11 Φεβ
Etihad Airways Logo
15:40 - 09:35BOS-SIN
28h 55m1 stop
Etihad Airways Logo
19:25 - 14:10SIN-BOS
31h 45m1 stop
S$ 1,063Etihad Airways
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Τετ, 1 Οκτ - Δευ, 6 Οκτ
United Airlines Logo
18:20 - 18:25BOS-SIN
36h 05m2 stops
United Airlines Logo
20:40 - 10:31SIN-BOS
25h 51m2 stops
S$ 1,070United Airlines
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Πεμ, 2 Οκτ - Κυρ, 5 Οκτ
United Airlines Logo
06:00 - 18:25BOS-SIN
24h 25m1 stop
United Airlines Logo
11:05 - 00:50SIN-BOS
49h 45m2 stops
S$ 1,077United Airlines
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Κυρ, 12 Οκτ - Σαβ, 25 Οκτ
Etihad Airways Logo
16:30 - 09:40BOS-SIN
29h 10m1 stop
Etihad Airways Logo
21:10 - 15:10SIN-BOS
30h 00m1 stop
S$ 1,094Etihad Airways
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Δευ, 29 Σεπ - Δευ, 13 Οκτ
Qatar Airways Logo
22:00 - 15:45BOS-SIN
29h 45m1 stop
Qatar Airways Logo
03:10 - 15:05SIN-BOS
23h 55m1 stop
S$ 1,136Qatar Airways
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Τρι, 21 Οκτ - Δευ, 17 Νοε
Qatar Airways Logo
22:00 - 09:00BOS-SIN
23h 00m1 stop
Qatar Airways Logo
03:15 - 13:55SIN-BOS
23h 40m1 stop
S$ 1,148Qatar Airways
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Δευ, 9 Μαρ - Πεμ, 12 Μαρ
Delta Logo
07:50 - 05:00BOS-SIN
33h 10m2 stops
Delta Logo
10:40 - 23:48SIN-BOS
25h 08m2 stops
S$ 1,158Delta
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Booking Insights

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 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 November, when tickets cost S$ 1,222 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 2,622 and S$ 1,833 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

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Good to know

Low seasonJune
Cheapest flightS$ 451
Best time to beat the crowds but there is an average 19% increase in price.
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.

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

    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.

Reviews of the 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.
7.9
DeltaOverall score based on 7954 reviews
7.3Food
8.2Boarding
7.9Comfort
8.5Crew
7.9Entertainment
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sept 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

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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