Looks to be broken again. Getting this error just now with an Iberia award search:

Does expertflyer work for M&M availability for Singapore AIrliness Business award availability?

Tried searching but could nowhere retrieve any availability.
Will alerts work for upcoming trip or is not able to check singapore availability?

EF shows partner level award inventory for SQ flights so yes that should work.

hmmm it seems not.

Singapore airlines website is showing award availability. Expertflyer is showing none.
See attachment

As noted the SQ website will show the expanded KrisFlyer inventory whereas EF shows the partner level award inventory, so looking at the SQ website would be the one website not to compare EF to. If you do the same award search on UA or AC or M&M (which you said you were looking for) you'll see there is no award inventory for that flight available to partners, matching EF's results.

What is LinearAir ("O2") that keeps showing up in some of my searches? Online they appear to be a charter outfit, possibly just charter broker. But, e.g. on 1-october they show two non-stop flights #1679 and #1789 from Kingman, AZ (IGM) to LAX. Those cannot possibly be "real" right? What are they?
thanks,
-BP

Those are scheduled flights that the airline has published to the reservation systems. You can see more data via the Flight Details search.

ExpertFlyer Voice, What is the current status on Qatar Airways upgrade availability searches? I saw in a previous post that there was some testing going on, but I am not sure what the current status is.

As of today the current status is it's not available. We will post back when it is.

Hmm... Interesting. I'm pretty sure this airline is not actually flying these flights.

Definitely offered for sale, a ticket can be had for $3369 (fare of $3370.50 plus -$1.50 in negative taxes). Note that Linear Air is not operating these flights; they're just selling them. This example is operated by 8ZMA365P, Corsair Aviation, LLC, out of Van Nuys, CA. Departs from 7100 Flightline Dr in Kingman, AZ, to LAX with no stops. Flown using a Cessna Light aircraft with single piston engines.

https://cimg8.ibsrv.net/gimg/www.fly...6b0f8cddef.png

Seat map on Delta and on EF for the same flight are very different - can anyone explain why please?
9/12 DL234 JFK-TLV

https://cimg9.ibsrv.net/gimg/www.fly...796684a601.jpg
From DL app
From DL app
https://cimg9.ibsrv.net/gimg/www.fly...b1afdf63b.jpeg
From EF

We just looked up that flight on EF and the seat maps don't look anything like the screen shots of the EF seat maps you posted, they match the DL ones. It would seem you were looking at the wrong date or flight on EF, please try again.

Swiss seatmap differences.

similar to what Sabbasolo reported above, I see more available seats for Swiss (LX) on EF than directly on Swiss.com
For example, I see 8 free seats in Business on EF, but only 4 on Swiss.com.
This is not about blocked seats. - Those I can understand.
The seats which I book are correctly updated on EF, so it's not entirely out of sync, and I'm looking at the correct flights, but EF just shows seats as open which do not appear as bookable on Swiss.com.

Example: LX1050/12Sep ZRH-HAM.

EF shows seats 1F, 3ACD as available (plus many others)
Swiss.com shows those 4 seats as occupied.

As noted Sabbasolo looked at the wrong EF seat map.

The EF seat map for LX 1050/12 Sep is correct. Those seats are marked as available by LX. You may be blocked from reserving them because of their bassinet and suitability for minor attributes, but they are not occupied.

Here is the raw output from the GDS:

https://cimg1.ibsrv.net/gimg/www.fly...ba5bbaf071.png