S$ 563 Find Cheap Flights from Boston to Southeast Asia – Compare and Save

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 Southeast Asia departing on 30-9. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Boston to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to Southeast Asia 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 Southeast Asia

Wed, 15 Jul - Sat, 29 Aug
Air Canada Logo
12:30 - 21:30
BOS
-
SIN
69h 00m
2 stops
Air Canada Logo
07:00 - 09:50
SIN
-
BOS
38h 50m
2 stops
S$ 1,596Air Canada
Sat, 1 Aug - Wed, 19 Aug
Air Canada Logo
18:50 - 05:15
BOS
-
SIN
46h 25m
2 stops
Air Canada Logo
06:15 - 21:27
SIN
-
BOS
27h 12m
2 stops
S$ 1,597Air Canada
Fri, 28 Aug - Fri, 4 Sep
United Airlines Logo
18:35 - 18:35
BOS
-
SIN
36h 00m
2 stops
United Airlines Logo
08:45 - 23:59
SIN
-
BOS
27h 14m
2 stops
S$ 1,599United Airlines
Sun, 28 Jun - Mon, 13 Jul
Air Canada Logo
10:40 - 05:15
BOS
-
SIN
30h 35m
2 stops
Air Canada Logo
22:00 - 22:38
SIN
-
BOS
36h 38m
2 stops
S$ 1,600Air Canada
Mon, 29 Jun - Tue, 14 Jul
Multiple Airlines Logo
22:00 - 21:15
BOS
-
SIN
35h 15m
1 stop
Multiple Airlines Logo
07:00 - 21:27
SIN
-
BOS
26h 27m
2 stops
S$ 1,602Multiple Airlines
Sat, 18 Jul - Thu, 30 Jul
Air Canada Logo
06:00 - 05:15
BOS
-
SIN
59h 15m
2 stops
Air Canada Logo
07:00 - 18:07
SIN
-
BOS
47h 07m
2 stops
S$ 1,605Air Canada
Sat, 27 Jun - Sun, 12 Jul
Air Canada Logo
19:15 - 05:15
BOS
-
SIN
46h 00m
2 stops
Air Canada Logo
22:00 - 22:38
SIN
-
BOS
36h 38m
2 stops
S$ 1,606Air Canada
Sun, 19 Jul - Fri, 24 Jul
Qatar Airways Logo
22:00 - 15:45
BOS
-
SIN
29h 45m
1 stop
Qatar Airways Logo
10:20 - 09:43
SIN
-
BOS
35h 23m
2 stops
S$ 1,608Qatar Airways
Tue, 4 Aug - Tue, 11 Aug
Qatar Airways Logo
08:30 - 21:15
BOS
-
SIN
24h 45m
2 stops
Qatar Airways Logo
03:15 - 15:15
SIN
-
BOS
24h 00m
1 stop
S$ 1,613Qatar Airways
Sun, 19 Jul - Fri, 7 Aug
Qatar Airways Logo
22:00 - 15:45
BOS
-
SIN
29h 45m
1 stop
Qatar Airways Logo
03:15 - 19:00
SIN
-
BOS
27h 45m
2 stops
S$ 1,614Qatar Airways
Booking Insights

KAYAK's insights & trends for Boston to Southeast Asia flights

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

Can I save money by flying with a stopover from Boston to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 622, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boston to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Southeast Asia, 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 Southeast Asia is September, when tickets cost S$ 1,118 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 1,864 and S$ 1,752 respectively.

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

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 Southeast Asia, 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 a flight from Boston to Southeast Asia, you should book around 2 weeks before departure, which saves you about 21% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Find deals

Good to know

Low seasonOctober
Cheapest flightS$ 563
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 12% lower on average.
Flight from Boston to Singapore

FAQs - booking Southeast Asia flights

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

    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 Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Boston to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Southeast Asia? 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.
7.1
JetBlueOverall score based on 2981 reviews
7.3Boarding
7.9Crew
7.5Comfort
6.6Food
7.2Entertainment
Airline reviews

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

2.0 MediocreAnonymous, Jun 2026
LAX - FLL
Read more JetBlue reviews

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

I like everything. Blythe at DCA is the absolute best!

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

Boston (BOS)