Hi, I'm planning to hit up The Flagship lounge (instead of the B gate lounge) for a better breakfast before flying tomorrow.

I have TSA pre, but I think I'm right in thinking there is no TSA Pre in terminal B?

Sooo, is the line usually short enough so that TSA Pre is irrelevant time-wise, or should I check my bags in at B before walking to D to clear security there?

Also, does anyone know how long the walk is from Flagship to B5, roughly?

Any tips appreciated!

No reason in my mind you couldn't check your bags in D, go through security with TSA-Pre in D, go to FL then walk or SkyLink over to B. I'd allow 15 minutes to walk from FL to lower B gates.

Thanks, I hadn't thought of that!

Not sure of how sophisticated/reliable the baggage system is there... Should I need to allow extra time for my bags to make the journey from D to B? I was aiming to check in T-90 mins

There is TSA Pre-Check in Terminal B. Or at least it is Pre-Check Lite during all but the slowest hours. Located approximately Gate 28-29.

Dedicated line and agent kiosk. They hand you a TSA card. Traffic flow past there is laid out oddly and the lines cross each other. People get confused. The lines get confused. Infrequent flyers really get confused. But Pre-Check is there.

It is the most logical entry point if you arrive on light rail from Tarrant County. It is generally still less crowded than the alternatives. Most of the time. Unlike most of DFW TSA kiosks, you still have to show both a boarding pass and Gov't. ID.

If there is a Flagship Lounge in Terminal B I'm not aware of it. But then again I don't have the exalted status to be worthy of entry, so I really don't know.

The AAdmirals Club in B is a pleasant place and quieter than the DFW big three clubs. But it is small and has reduced offerings.

No. They are used to people checking/rechecking luggage at D for other terminals all the time. Any international (non-Preclear) comes into D so the luggage does too.

Also, not sure if youre next flight is Eagle or Mainline but if mainline the gates do change often.

Go through Pre in B, and then take the Skylink to D. This is what I do. B lines are easy (barring an ice storm--but DFW is never good with that!). But yes, baggage checked in any terminal also will make it. They do well with baggage.

Sooo, gate was changed to C, checked in there and jumped on the Skytrain to D.... Skytrain is broken and travelling at snails pace - ONE WAY ONLY.

Be warned, it's so far taken me 30 mins to get from C to D. So I'm abandoning it and running back to C.

There's TSA Pre available at the south end of B (~B10 checkpoint)

D Flagship Lounge to B5 might be about a 9-15 minute walk depending on how fast you walk. I would NOT take the Skytrain from the middle of D to the south end of B.

Never use the Skytrain between C and (the northern half of) D. They're directly across from each other meaning you have to travel half the circumference of the airport if taking the train.

C2 to north end of D has a walkway. Easy walk.

In general, the usefulness of the Skytrain is dramatically overstated for people with normal mobility and a reasonable walking speed. I rarely use it.

I original plan was to do that but I couldn't find the walkway. Every sign just directs you to the bloody Skytrain. Lucky I'm fairly fit else I'd have definitely missed that flight! Thankfully AA allow lounge access on arrival so i had lunch while waiting for my baggage to reach the belt

Even with that distance, it's quick. If you hustle, you save what.. 3-4 minutes?

Additionally, you miss the vantage point view of the widebodies at D, as well as 18L/R.

I'll take the mild exercise and uncrowded C-D pedestrian walkway over being stuffed into a crowded, hot, stuffy, unpleasant, smelly Skylink car.

Not to mention how often you have to backtrack on both ends of a Skylink journey.

Sure - but that's a personal choice.

Using Skylink isn't inherently a wrong option.

No, but for any two destinations within the DFW airport it is inherently slower or faster given a specific walking speed. Terminal E excepted.

I.e. there's nothing inherently wrong about using Skylink to go from C2 to A39. Or C4 to D38. Or D36 to B5. But it is inherently slower at the speed at which I walk.

Again, for those without mobility issues who walk fairly fast, I suggest that the following combinations are faster to walk:
South A <> North C
South A <> South B
South B <> North D
North C <> North D

None of these are benchmarkable standards. I have no idea how fast you walk or what you consider walking fast. Nor does it consider weight, size or mobility of luggage.

Not disputing your point of walking being viable, I agree. Just the point about it being the best option.

I think that there is a standard walking speed, though of course not everyone walks that speed. If you look up walking directions in Google maps it estimates a time.

And that speed is 3 miles per hour.