How much do they charge per case on top of the quoted ticket price compared to FGWs free carriage of said items?
You'd get the next tier up (All In) fare rather then a Flight Only. It's usually cheaper then adding baggage separately.
The next fare tier up from "Just Fly" is "Get More".
The extra cost gives you an inclusive 20kg hold baggage allowance, pre-selection of seats and some other perks.
On Exeter - LCY it costs £23 extra.
If all you want is the Hold baggage allowance, it is
always cheaper just to pay for a bag on the cheaper "Just Fly" ticket.
Prices are for each leg of the flight.
15kg = £14.99
20kg = £15.99
23kg = £20.98
etc.
I fly on the Flybe Dash 8 Q400's on about six or more return trips a year and although the overhead lockers are a lot smaller and tighter for cabin bags, than in larger aircraft, you can still fit a regulation size Flybe, Ryanair, BA etc, type bag in there. as long as it hasn't been over stuffed and expanded. I have never had to have my cabin luggage put in the hold, but my wife has on just one occasion out of lots of flights.
Out of curiosity, I've just looked at Exeter - London City for next Tuesday (25th Nov), a week today for a day return on the cheapest Just Fly ticket.
0630 from Exeter £43.41
2030 from LCY £56.57
Total £99.98
The flexible business fare is obviously much more expensive, but so is an open anytime return rail fare (well over £200).
First class rail is about £373 return.
The cheapest FGW available today for the same date (25th Nov) is showing as £117.70, for an early morning departure.
An off peak return (£101) is not available until much later, arriving in London at 1124.
A super off peak return gets you into London at 1223 for £80.50, but half the day has gone by then.
One option is to fly to London in the morning and return by rail. It will only save about £10 and involve two and a half hours crammed in a busy train.
It will be interesting to see if Flybe can made this route work.