*mistake fare* US, Argentina, or Singapore direct from UK & Ireland w/ bags included (Norwegian)

Looks like an OTA glitch mistake fare today on ALL direct long-haul routes by Norwegian...
Looks like an OTA glitch mistake fare today on ALL direct long-haul routes by Norwegian! Normally these flights come only with hand luggage, but at the moment a number of OTAs (online travel agents) are throwing in 2 checked bags + meals on each flight too.

Some routes, such as the Buenos Aires fares in the example below are as low as we've seen them as is, but with bags included, this is a truly solid deal. There are also some nice options over peak periods too, like this example direct to Buenos Aires in mid August for £706 return or this one to New York over NYE for £292 return.

Note: Make sure to read through the how-to-book section below very carefully to get these with the bags + meals included, as Norwegian won't include them if you book directly with the airline. Oh and these work for one-way flights as well :-)
From London (LGW):

New York (NYC) - £236
Boston (BOS) - £230
Orlando (MCO) - £286
Fort Lauderdale (FLL) - £279
Chicago (ORD) - £ 292
Austin (AUS) - £332
Denver (DEN) - £292
Los Angeles (LAX) - £277
Seattle (SEA) - £292
Oakland (OAK) - £259
Singapore (SIN) - £333
Buenos Aires (EZE) - £542

From Edinburgh (EDI):

New York (SWF) - £274
Boston (PVD) - £261

From Dublin (DUB):

Boston (PVD) - £243

From Belfast (BFS):

New York (SWF) - £242
Boston (PVD) - £233

Travel Dates: September 2018 - March 2019 (varies a lot by route)

Airline: Norwegian

Standard Fare: £500-950 (direct)

Bags: Checked bags included (2x)

Book by: These fares could be gone in the next 24-48 hours
Note: Jack's Flight Club does not partner with nor receive referral fees from any of the sites linked below. Our only incentive is to help you snag a great fare!
Here's how to book:

1. Head to Google Flights and use their handy calendar tool to find the best travel dates for your route, by locating the dates with the lowest fares (shown in green).

Important Note: This time you are only using Google Flights to identify the best dates - do not book direct with the airline, as bags will not be included in the fare and prices are generally higher (For example: Google Flights shows the Argentina route at £629, while OTAs have it from £542 with bags + meals included). Proceed to step 2 to book.

2. To get the lowest possible fares (those listed above), head over to Momondo, re-enter your itinerary and book with an OTA (online travel agent).

Note: I've noticed on some dates the cheapest OTA listed will work out a bit more expensive (or without a checked bag on one or more of the legs) once you click through to their website. If this happens you may want to go back to Momondo and select from one of the others available. I've found Travel2Be and Omega Flight Store work best for including the checked bags, but there are a few others as well.

Once your ticket is confirmed, you should be able to see your reservation on Norwegian's website.

New here? Here is everything you need to know about using Google flights, Momondo/Kayak, when/where/how to book and other tips to snagging a flight deal :-)

If you end up booking this flight, please do hit reply and tell me!