S$ 452 Find Cheap Flights from Boston to Southeast Asia

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 5-2. 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

dom, 12 apr - ven, 17 apr
Japan Airlines Logo
15:17 - 17:30
BOS
-
SIN
38h 13m
2 stops
Japan Airlines Logo
08:05 - 18:05
SIN
-
BOS
22h 00m
1 stop
S$ 1,270Japan Airlines
dom, 12 apr - dom, 19 apr
Japan Airlines Logo
13:20 - 00:20
BOS
-
SIN
23h 00m
1 stop
Japan Airlines Logo
08:05 - 18:05
SIN
-
BOS
22h 00m
1 stop
S$ 1,271Japan Airlines
lun, 23 feb - mer, 29 apr
Delta Logo
05:35 - 05:00
BOS
-
SIN
34h 25m
2 stops
Delta Logo
01:10 - 23:59
SIN
-
BOS
34h 49m
2 stops
S$ 1,276Delta
dom, 12 apr - sab, 18 apr
United Airlines Logo
20:16 - 18:35
BOS
-
SIN
34h 19m
1 stop
United Airlines Logo
20:35 - 08:24
SIN
-
BOS
23h 49m
1 stop
S$ 1,278United Airlines
lun, 23 feb - lun, 2 mar
ANA Logo
12:35 - 06:55
BOS
-
SIN
29h 20m
2 stops
ANA Logo
10:45 - 14:12
SIN
-
BOS
40h 27m
2 stops
S$ 1,280ANA
ven, 13 mar - dom, 26 apr
Qatar Airways Logo
21:40 - 08:45
BOS
-
SIN
23h 05m
1 stop
Qatar Airways Logo
03:15 - 15:05
SIN
-
BOS
23h 50m
1 stop
S$ 1,281Qatar Airways
dom, 3 mag - mer, 13 mag
Delta Logo
18:45 - 23:40
BOS
-
SIN
40h 55m
2 stops
Delta Logo
07:30 - 06:35
SIN
-
BOS
35h 05m
2 stops
S$ 1,282Delta
mar, 10 mar - dom, 15 mar
United Airlines Logo
05:45 - 20:15
BOS
-
SIN
26h 30m
1 stop
United Airlines Logo
22:20 - 10:49
SIN
-
BOS
24h 29m
2 stops
S$ 1,285United Airlines
dom, 15 feb - sab, 28 feb
United Airlines Logo
11:00 - 20:15
BOS
-
SIN
44h 15m
1 stop
United Airlines Logo
10:10 - 00:49
SIN
-
BOS
27h 39m
1 stop
S$ 1,290United Airlines
dom, 15 feb - sab, 28 feb
United Airlines Logo
08:00 - 20:15
BOS
-
SIN
47h 15m
1 stop
United Airlines Logo
22:20 - 14:29
SIN
-
BOS
29h 09m
2 stops
S$ 1,295United Airlines
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$ 509, 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 November, when tickets cost S$ 1,176 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 2,401 and S$ 1,763 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 20% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Find deals

Good to know

Low seasonOctober
Cheapest flightS$ 425
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 16% 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.
7.2
JetBlueOverall score based on 2891 reviews
6.6Food
7.2Entertainment
7.4Boarding
8.0Crew
7.5Comfort
Airline reviews

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

2.0 MediocreAnonymous, Jan 2026
JFK - BNA
Read more JetBlue reviews

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

Good. No issues except a slight delay. Crew came in late.

Not a pleasant experience, service was poor. Didn't like it

It was good. I prefer JB over other airlines.I just wish we had headphones for the films, but other than that - good.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

Boston (BOS)