Citylink AIRorPrivate transfer to Glasgow?

The short answer

For one traveler the Citylink AIR is cheaper by up to £128. The Citylink AIR fare is sold "from" a price rather than at it, so this comparison holds only at the advertised prices and the real answer can change with the day you travel.

The Citylink AIR is quicker: 1 h against 1 h 10.

Citylink AIR: Runs all night. Private transfer to Glasgow: hours not recorded.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in GBP. The cheaper of the two is marked on every row. The Private transfer to Glasgow is charged in euros; its column is converted at the reference rate in its fare note.
Travelers	Citylink AIR	Private transfer to Glasgow	Difference
1	from £15	about £143	up to £128
2	from £30	about £143	up to £113
3	from £45	about £143	up to £98
4	from £60	about £143	up to £83
5	from £75	about £233	up to £158
6	from £90	about £233	up to £143
7	from £105	about £233	up to £128
8	from £120	about £466	up to £346

Side by side

Where each one leaves you

AIR · CitylinkCitylink AIR

From: Stop D, outside the terminal
To: Buchanan Bus Station, Glasgow
Luggage: One large suitcase or rucksack (up to 20 kg) and one small item free; extra items £5.00 each.
Runs: All night
Journey: 60 min

It runs up to every 20 minutes by day; the airport's own page has that spacing to 19:55 and hourly from midnight, while the operator's FAQ puts the change at 21:15 — the two disagree on exactly when it slows.

It never fully stops, but overnight departures are hourly rather than every 20 minutes.

Citylink AIR: price for every party size

Check times and fares with Citylink

transfer · KiwitaxiPrivate transfer to Glasgow

From: Driver meets you in arrivals with a name board
To: Any address in Glasgow
Journey: 70 min

Book at least 16 hours ahead; nearer the day a car is offered only when one is free.

Private transfer to Glasgow: price for every party size

Book transfer through Kiwitaxi

Partner link

This compares two of 12 options. See all of them ranked for your party size

Citylink AIRorPrivate transfer to Glasgow?

Priced against each other

Side by side

The other comparisons at Edinburgh Airport