
$442 Cheap United flights from Boston to Singapore (BOS to SIN)
Find The Best Day To Fly from Boston to Singapore
Amazing United BOS to SIN Flight Deals
The cheapest flights to Changi found within the past 7 days were $831 round trip and $442 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Discover our best United flight from Boston BOS to Singapore SIN
To find the best deals on flights to Boston from Singapore with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Boston BOS to Singapore SIN with United
If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $831 to $863, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way United flights from Boston BOS to Singapore SIN
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Boston to Singapore costs from $442. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Singapore SIN from Boston BOS with United
To find a cheap United flight from Boston BOS to Singapore SIN, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on United flights from Boston BOS to Singapore SIN
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover.
Find nonstop flights from Boston BOS to Singapore SIN with United
If you’re keen to be on Singapore soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for United flights from Boston BOS to Singapore SIN
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Singapore SIN from Boston BOS with United on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
ORD | USA | O'Hare Intl. | 227 |
DEN | USA | Denver Intl. | 226 |
IAH | USA | George Bush Intercontinental | 136 |
IAD | USA | Washington Dulles Intl. | 100 |
SFO | USA | San Francisco Intl. | 64 |
LAX | USA | Los Angeles Intl. | 23 |
EWR | USA | Liberty Intl. | 20 |
FRA | DEU | Frankfurt Intl. | 19 |
NRT | JPN | Narita Intl. | 19 |
PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to Singapore

Reviewed on Jul 11, 2025

Reviewed on Jul 9, 2025

Reviewed on Jul 12, 2025
Popular United Flight Routes from BOS
Top United Flight Routes from SIN
Top Flights for United originating from BOS
Domestic
- Newark Liberty Intl. Airport to Santo Domingo (EWR - SDQ)
- Los Angeles to Honolulu (LAX - HNL)
- Atlanta to New York (ATL - LGA)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
- Chicago to San Juan (ORD - SJU)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Atlanta to Las Vegas (ATL - LAS)
- Chicago to Orlando (ORD - MCO)
- Dallas to Las Vegas (DFW - LAS)
International
- Richmond to Lagos (RIC - LOS)
- Chicago to San Juan (ORD - SJU)
- Atlanta to New York (ATL - LGA)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Newark Liberty Intl. Airport to Santo Domingo (EWR - SDQ)
- Orlando to San Juan (MCO - SJU)
- Los Angeles to San Salvador (LAX - SAL)
- Philadelphia to San Juan (PHL - SJU)
- Atlanta to Las Vegas (ATL - LAS)
- San Juan to Orlando (SJU - MCO)
Most Popular
- Philadelphia to Miami (PHL - MIA)
- JetBlue Airways Orlando (MCO) to Las Vegas (LAS) flights
- American Airlines Dallas (DFW) to Las Vegas (LAS) flights
- JetBlue Airways Boston (BOS) to Las Vegas (LAS) flights
- New York to Fort Lauderdale (JFK - FLL)
- Boston to Philadelphia (BOS - PHL)
- Baltimore to Las Vegas (BWI - LAS)
- Dallas to Atlanta (DFW - ATL)
- Philadelphia to Atlanta (PHL - ATL)
- Delta Atlanta (ATL) to Las Vegas (LAS) flights
- Dallas to Orlando (DFW - MCO)
- Dallas to Cancun (DFW - CUN)
- Los Angeles to Dallas (LAX - DFW)
- Chicago to Dallas (ORD - DFW)
- Dallas to Denver (DFW - DEN)
- JetBlue Airways Boston (BOS) to Fort Lauderdale (FLL) flights
- Dallas to Chicago (DFW - ORD)
- Delta Minneapolis - St. Paul (MSP) to Las Vegas (LAS) flights
- Portland to Las Vegas (PDX - LAS)
- Philadelphia to Tampa (PHL - TPA)
- Philadelphia to Orlando (PHL - MCO)
- Delta Detroit (DTW) to Las Vegas (LAS) flights
- Atlanta to Dallas (ATL - DFW)
- New York to Dallas (JFK - DFW)
- Dallas to Miami (DFW - MIA)
- Cleveland to Orlando (CLE - MCO)
- Dallas to Seattle (DFW - SEA)
- Philadelphia to Los Angeles (PHL - LAX)
- Los Angeles to Seattle (LAX - SEA)
- Dallas to Los Angeles (DFW - LAX)