Hi Kathy
If you want a route that is scenic, interesting, with reasonable fuel costs, if you top up at supermarkets, and avoids most of the toll roads.
May I suggest:-
For this journey, Michelin France and Spain/Portugal maps or similar, will be helpful.
CALAIS - MOLLERUSA
CALAIS exit the port turning left onto the dual carriageway that skirts Calais. After about 5 km, exit to the right, signposted to the Channel Tunnel and Boulogne. Follow this toll motorway to just before Abbeville, (7.50 euros), then take A28-E402 all the way to Rouen, through the tunnel, across the Seine then turn right, follow motorway dir. for Paris & then very soon after Rouen the motorway splits follow dir. Evereux onto the national road N154, continue to Nonencourt and Dreux, then N10 Chartres and Chateaudun, from here take the D924 to Blois, then onto the D956 to Contres and Valencay
On the outskirts of Chateauroux turn towards and past the airport and get onto free motorway A20/E9 all the way to Limoges
At Limoges turn off this motorway onto the dual carriageway that takes you through the city alongside the river. Keep going until you find the N21 to Perigueux, then continue on to Bergerac.
From here, take the D933 to Marmande, then continue in the direction of Mont-de-Marson, but before Mont-de-Marson take the D934 and then N134 to Pau.
At Pau, follow directions for commercial vehicles (the signpost is the outline of a truck) via the airport dir. Zarragoza (Saragoza)/ Pyrennees España.
After Pau, still on the N134, there are now two possible routes, A & B. According to the time of year, look to make sure the mountain passes are open. (There are signs at the side of the road) – consult your map. During winter months it is probably safer to take option B, though at the time your traveling, the most scenic and best route is route A. Which is not the national road and trucks are banned.
A) About 10 miles out from Pau on the N134, look for the turning D934 Arudy, if this route is closed, take route B and stay on the N134, which is the National road and truck route. Continue on to Laruns, Sallent de Gellego, Biescas and Sabinanigo .
B) After Pau, stay on the A134 to Ste Marie, then over the Col du Somport to Jaca, then onto the N330 to Sabinanigo
From both routes, continue on towards Huesca and as you approach, look out for the N240 to Velillas, Angues, Monzon and Binefar. About 22mls after Binefar, in the direction of Lerida, turn left onto N11, after approximately 17 mls, look for right turn for MOLLERUSA.
Only Toll is the 7.50 euros Boulogne to Abbeville.
Steve