Routes: EWR/LAX to KUL/SIN
Cost: $463+ round-trip in economy
Dates: January through May
Booking Link: Orbitz, Expedia or directly with the airline
Note, to find the lowest fare for your preferred dates follow the steps below.
1. Go to Google Flight search and enter your to/from cities
2. Click on the calendar for pricing (best fares will be highlighted in green)
3. Use those dates and book on Expedia (usually $1 less), Priceline, Orbitz, or directly with the airline
There's wide availability on these routes from January through May — just use Google Flights to find the dates you want, then book via Orbitz, Expedia or directly with the airline. Some of the United itineraries have one leg on United and the other on ANA, while the LAX to Singapore route is operated by Xiamen. All are full-service carriers so you'll get a free checked bag and meals on your journey.
Airlines: United and Xiamen
Below link is for reference only: