Delta is currently offering sub $700 total roundtrip fares to Singapore from Newark and Los Angeles per this FlyerTalk thread. Most people have been finding the cheapest fares for March-April and then again for October-December.
Pricing It Out
I just priced out a couple itineraries in March to see if it might be worth it and found some good deals. Delta.com makes it easy to search for flexible weekend travel (Thursday-Tuesday) and a +/- 3 day range.
Delta.com -> Planning Tools -> Book a flight -> Select the “My Dates are Flexible” box
To find the lowest fares, we priced out a Wednesday-Wednesday itinerary both from Newark-Singapore and from LAX-Singapore.
From Newark, the lowest fare we could find was $690.30 for an itinerary that runs EWR-MSP-NRT-SIN-MSP-EWR, earning flyers a total of 20,565 miles according to GCMap.com, which means you’re paying about 3.4 cents per Medallion Qualifying mile.
You can fly LAX-Singapore as well, for $662.09 on those same dates. The itinerary would be: LAX-SFO-NRT-SIN-NRT-MSP-LAX for a grand total of 19,562 miles, breaking down to 3.38 cents per mile.
The options get more expensive, but only slightly up into the low $700 range if you were to do a quick weekend trip leaving on a Thursday and coming back on a Sunday or Monday.
I am tempted to book one of these because I’ve never been to Singapore, but my main concern is that its a long way in coach. Even though Delta now has Economy Comfort seats (coach seats with more recline and legroom), I just flew exit row Economy Comfort from JFK to Dublin and while the extra recline and legroom is nice, I was pretty uncomfortable by the end due to the lack of padding in the exit row seat. That’s only a 6 hour flight which pales in comparison to the 27 hours of travel on the Newark to Singapore trip! I love elite miles and all, but I’d rather rack up elite miles on domestic runs that are eligible for upgrades. However, it is very tempting to knock out over 20,000 MQMs and receive over 46,000 regular miles for one $690 fare!
If you end up booking this or searching and find eligible dates, feel free to share in the comments.