How long does it take to refuel a big jumbo jet? And what about a smaller A320.
I'm talking in terms of time.
It depends on a number of factors like:
...among others things.
This figure from the 737 Airport Planning document gives 9 minutes for the fueling time for a Boeing 737-600:
The following image shows the time taken for refueling a Boeing 747-8 Jumbo to be 44 minutes:
It depends on how many equipment are being used to refuel and how much fuel an aircraft needs. But in general there are some ratings which manufacturers issue for handling and ground time.
For example, a B747-8 has (according to 747-8 Airplane Characteristics for Airport Planning):
Therefore, in theory it's possible to refuel an empty B747-8 to its maximum usable fuel capacity in 15 min with all 8 nozzles. In normal refueling configuration two trucks (one truck each wing) being used which serves 4 pressure nozzle and takes 30 min to refuel 56,553 US gallons. So standard fueling time for this aircraft estimated about 50 min.
For A320-200 though these ratings are (according to Airbus A320 airplane characteristics for airport planning):
And the estimated fueling time is about 15 min refueling 6,303 U.S. gallons using one truck serving two nozzles.
According to this article, it generally takes about 1-2 hours to fuel a large jumbo such as an A380. As for smaller jets, the second answer to the Yahoo! question says that Southwest Airlines claims to be able to turn a plane around in 20 minutes. Given that the Southwest fleet is made up entirely of 737s, a jet such as the 737 or A320 should take about 15-20 minutes to refuel.