Your best bet is to have a look at Google Maps:
I have made up a map that takes you from Lisbon Airport to the A22 in the Algarve. You can find it here:
Driving Directions
Map Link:
http://maps.google.com/maps?f=d&hl=en&geocode=13534482288512528863,38.766243,-9.129286%3B4111118571256442373,38.115160,-8.364580&saddr=Alameda+das+Comunidades+Portuguesas,+Santa+Maria+dos+Olivais,+Lisboa,+1700,+Portugal+(LIS+-+Lisbon+International+Airport)&daddr=IP8+%4038.115160,+-8.364580+to:37.152108,-8.212967&mra=dme&mrcr=0&mrsp=2&sz=11&via=1&sll=37.165789,-8.381882&sspn=0.245684,0.601501&ie=UTF8&ll=37.974515,-8.893433&spn=1.944155,4.812012&t=h&z=8
Start address: LIS - Lisbon International Airport Alameda das Comunidades Portuguesas, Santa Maria dos Olivais, Lisboa, 1700, Portugal
Start at: LIS - Lisbon International Airport Alameda das Comunidades Portuguesas, Santa Maria dos Olivais, Lisboa, 1700, Portugal
1. Head south on Alameda das Comunidades Portuguesas toward Praça do Aeroporto - 0.3 km
2. At Praça do Aeroporto, go under the motorway bridge, and left around the roundabout taking the exit onto Av. Cidade do Porto heading to Sul/A1/A12 - 1.2 km
3. Take the ramp onto E01 - 2.1 km
4. Take exit 14 toward A12/Ponte Vasco da Gama - 0.6 km
5. Merge onto IC17 - 0.2 km
6. Continue on A12 Partial toll road - 35.2 km
7. Continue on IP1 (signs for E01/A2/Algarve/Évora) Toll road - 2.5 km
8. Merge onto A2 Toll road - 80.0 km
9. Take the ramp to A2/Lisboa/Algarve - 0.3 km
10. Continue straight Toll road - 0.4 km
11. Merge onto A2 via the ramp to Algarve/Aljustrel Toll road - 120 km
18. Take exit 15 for A22 toward Lagos/Portimão/Albufeira - 0.2 km
You can zoom in on the area around Lisbon Airport to view it better using the bar on the left had side of the map.
Things can be a bit tricky.particularly at Praça de Aeroporto and getting onto the E01, especially if you are leaving at rush hour.
Best bet is to keep calm. If you miss the bridge ramp don't try and find you way back, keep going to Vila Franca da Xira and the pick up the A10 heading South to Alcochete and the Algarve. Its longer bu simpler.
