In our virtual world, a flightplan should always be filed.
VFR stands for Visual Flight Rules. The pilot must fly and navigate with visual reference to the surface. Due to this, there are certain weather criteria that must be met for a VFR flight to take place.
VFR flights are not permitted in Class A airspace, so there are no criteria.
VFR Flight in Class C, Class D and Class E airspace:
At or above 10,000ft:

• 1,500 metres horizontally away from cloud
• 1,000ft vertically away from cloud
• In flight visibility of at least 8km

Below 10,000ft:

• 1,500 metres horizontally away from cloud
• 1,000ft vertically away from cloud
• In flight visibility of at least 5km

An aircraft is deemed to have complied with the below 10,000ft restrictions if the aircraft is not a helicopter and:

• it flies at or below 3,000ft AMSL (Above Mean Sea Level)
• it flies at a speed which is 140KIAS (Knots Indicated Air Speed) or less
• remains clear of cloud, with the surface in sight and an in flight visibility of at least 5km

If it is a helicopter, it is deemed to have complied with the below 10,

• it remains clear of cloud, with the surface in sight and an in flight 000 restrictions if:
• it flies at or below 3,000ft amsl visibility of at least 1,500 meter

• Check the class of airspace you are allowed to fly in and check the local rules.
• Stay VMC at all times. That means (standard)
• Minimum (flight) visibility 5 kilometres
• Minimum distance from clouds:
• 1,500 meters horizontally and
• 1,000 feet vertically.
• Seen and to be seen! You have to look and to be Seen and to be seen! You have to look and to be “visible”.
• A pilot under VFR is responsible himself for providing appropriate separation with other aircraft, eventually with the help of traffic advisory from ATC.
• Navigate via (easy recognizable) visual reference points and report such points as appropriate.
• Always ask permission before you enter Controlled Airspace; report at the relevant (visual) reporting points.
• In the visual circuit always report at (right-hand) downwind and at final. Note: Standard is left hand circuit. Don’t call for “left hand”. IF right hand circuit, always call for “right hand”. E.g. downwind R/W 25 = a left hand downwind for R/W 25.
• Pilot may use navigational instruments, but he may not depend on them. He depends on the “sight of eye”.

In some airports without Clearance Delivery position, obtaining VFR clearance can be done with the taxi instructions without any start up approval for Light Category planes. Example after initial contact has been established,
<Airplane>: (ATC Callsign), PKIND (Type of plane), (Position), request taxi for traffic circuit.
<ATC>: PKIND, taxi holding point 10 via NP2, (Squawk or other instructions as required) QNH 1010. (QNH given if the pilot didn't mention ATIS info received).
<Airplane>: (Readback all the instructions given) PKIND.

Note: The ATC will assume the pilot knows the local procedure for local traffic pattern / circuit for the airport.

OR, for VFR cross country, PKIND, a Cessna 172 from Denpasar Bali to Mataram (After initial contact has been established)
<Airplane>: (ATC Callsign), PKIND, Cessna 172, General Aviation Apron, request taxi, VFR to Mataram.
<ATC>: PKIND, taxi holding point 27 via N1, (Squawk or other instructions as required) QNH 1013.
<Airplane>: (Readback ALL the instructions given) PKIND.
Note: The ATC will assume the pilot knows the exit corridor to the destination. Later after airborne, ATC might request the pilot to report when reaching the exit corridor by the corridor names' (If any) or distance and direction from the airport for the reporting point as necessary.

Note: If cruising altitude is required to be obtained, ATC may ask the pilot to report the planned cruise altitude. Otherwise, pilot will solely responsible to remain VFR at all times.

The following is a transcript of a VFR flight, PKIND, a Cessna 172 from Denpasar Bali to Mataram (The transcript below is just for an example only, and might differ case by case).

PKIND:
Ngurah Tower, PKIND
WADD_TWR:
PKIND, Ngurah Tower.
PKIND:
PKIND, Cessna 172,General Aviation Apron, request taxi VFR to Mataram, 3000ft
WADD_TWR:
PKIND, Taxi holding point RWY27 via N1, Squawk 1201, exit via NE(north east) / Sanur (name of known exit corridor) 3000ft, QNH1011
PKIND:
Taxi holding point RWY27 via N1, Squawk 1201, exit via NE / Sanur 3000ft, QNH 1011, PKIND.
WADD_TWR:
Ngurah Tower.
After cleared for line up, the airplane is on position and ready for takeoff
PKIND:
PKIND, Ready.
WADD_TWR:
PKIND, wind 120 degrees 6 knots, runway 27 Cleared for take-off.
PKINDR:
Runway 27 cleared for take-off PKIND.
When no further controller available like xxxx_APP, tower will untracked A/C.
WADD_TWR:
PKIND, exit via NE of Aerodrome / SANUR, switch to UNICOM 122.8.
PKIND:
Exit NE of Aerodrome / Sanur, 122.8, PKIND.
To cross or to enter controlled airspace: (always) contact ATC on forehand!
WADD_TWR:
PKIND, exit NE of Aerodrome / SANUR, contact Approach 119.7.
PKIND:
exit NE of Aerodrome / SANUR, 119.7, PKIND.
---
PKIND:
Bali Approach, PKIND cessna172 VFR from WADD to WADA, 3000ft.
WADD_APP:
PKIND, cleared to WADA VFR, 3000ft, traffic southbound Cherokee 2000ft VFR.
PKIND:
Clear to WADA VFR, 3000ft,traffic in sight, PKIND.
WADD_APP:
PKIND, report Aerodrome in sight.
PKIND:
Report aerodrome in sight, PKIND.
PKIND:
Bali approach, PKIND, aerodrome in sight.
WADD_APP:
PKIND, contact Selaparang tower 122.2
PKIND:
122.2, PKIND.
---
PKIND:
Selaparang tower, PKIND west of aerodrome (Approximate distance when able to determine) 3000ft, for full stop landing.
WADA_TWR:
PKIND, wind 090 degrees 8 knots, QNH 1012, descend to 1500ft AGL (OR Circuit Altitude), straight in approach RWY09, Report final.
PKIND:
descend 1500ft AGL, QNH 1012, straight in approach RWY09, report final, PKIND.
PKIND:
PKIND, final rwy09
WADA_TWR:
PKIND, wind 120 degrees 8 knots QNH1012, RWY09 cleared to land.
PKIND:
RWY09 Clear to land, PKIND.
PKIND:
PKIND, vacated runway on Alpha.
WADA_TWR:
PKIND, taxi stand 6.
PKIND:
Taxi stand 6 PKIND.
PKIND:
PKIND closing Flightplan.
WADA_TWR:
PKIND, flight plan closed (at time xxxx).

The following is a transcript of a VFR flight, PKIND, a Cessna 172 to fly traffic circuit at Juanda Surabaya.

Taxi Clearance
PKIND:
Juanda Ground, PKIND, information Delta.
WARR_GND:
PKIND, Ground, information Delta correct.
PKIND:
PKIND, Cessna 172, parking stand 1, request taxi for traffic circuit.
WARR_GND:
PKIND, cleared taxi holding point N2, RWY10 via N3N, NP2, squawk 1233 (Squawk given if required).
PKIND:
Taxi holding point N2 RWY10 via N3N, NP2, squawk 1233, PKIND.
WARR_GND:
Juanda Ground.
Airplane at the holding point.
PKIND:
PKIND, N2.
WARR_TWR:
PKIND, wind calm, QNH 1009, RWY10 Cleared for take-off.
PKIND:
QNH1009, RWY10, cleared for take-off, PKIND.
Downwind Leg,
PKIND:
PKIND downwind runway 10, touch and go. (If no altitude reported, ATC will assume the pilot on the standard circuit altitude Above Ground Level).
WARR_TWR:
PKIND, report on final runway 10.
PKIND:
Report final runway 10, PKIND.
Base Leg :
On this leg the pilot is not required to report to the Tower. From Tower previous communication, Tower asked pilot to report on final runway 10.
Final :
PKIND:
PKIND, final runway 10
WARR_TWR:
PKIND, QNH1009, wind 120 degrees at 7 kts, runway 10 cleared for touch and go.
PKIND:
QNH 1009, cleared for touch and go runway10, PKIND.

The following is a transcript of a Z flight, PKIND, a Cessna 172 from Bandung to Jakarta.

Clearance:
PKIND:
Husein Tower, PKIND, ATR72, General Aviation Apron, request clearance Zulu Flight to WIII.
WICC_TWR:
PKIND, cleared Z flight to WIII, exit via NW(north west) of Aerodrome to BND 5500ft, rwy29, info B (OR no metar available), squawk 1233.
PKIND:
Cleared Z flight to WIII, exit NW of Aerodrome to BND, 5500ft, Rwy29, info B, squawk 1233, PKIND.
WICC_TWR:
PKIND, readback correct.
Taxi & departure :
PKIND:
Husein tower, PKIND, request taxi.
WICC_TWR:
PKIND, taxi via apron, holding point RW29, QNH 1012.
PKIND:
Taxi via apron, holding point RW29, qnh 1012, PKIND.
PKIND:
Husein tower, PKIND ready.
WICC_TWR:
PKIND, wind calm, RW29 Cleared for take-off
PKIND:
RW29 cleared for take-off, PKIND.
When no further controller available like xxxx_APP, tower will untracked A/C.
WICC_TWR:
PKIND, exit NW of Aerodrome to BND VOR, contact [ATC UNIT] [freq] OR Switch to UNICOM 122.800.
PKIND:
Exit NW of Aerodrome to BND VOR, 122.800, PKIND.
To cross or to enter controlled airspace: (always) contact ATC on forehand!
WICC_TWR:
PKIND, exit NW of Aerodrome to BND, contact Bandung Approach 121.00 (OR Jakarta App 119.750).
PKIND:
exit NW of Aerodrome to BND, 119.700, PKIND.
PKIND:
Bandung Approach (OR Jakarta approach), PKIND ATR72 Z flight from WICC to WIII, 5500ft.
WICC_APP:
PKIND, cleared VFR to PW (Point to enter IFR still under VFR), maintain 5500ft, qnh1012, learjet 2 o´clock 6nm, 8000 ft, proceeding to the North, report in-sight.
PKIND:
Cleared VFR to PW, 5500ft, qnh1012, traffic in sight, PKIND.
At certain point VFR flight change to IFR, see flight plan, pilot request clearance.
PKIND:
Bandung Approach(OR Jakarta approach), PKIND 10nm inbound PW, 5500 ft request IFR flight to WIII.
WIII_APP:
PKIND, cleared IFR flight to WIII, climb 7000ft over PW, expect PW2 arrival rwy 25L, Set squawk 2201, QNH1012.
PKIND:
cleared IFR to WIII, climb to 7000ft over PW, PW2 arrival rwy25L, squawk 2201, QNH1012.
Further RTF as IFR arrival procedures