I found quite good deals from www.decodecarhire.co.uk . They have contracts with several locar rental companies so you can get best deals from several car rental companies. about 10 years ago
Can you get one-way car rentals between Vancouver and San Francisco or vice versa in the month of July?
I'm quite sure can get such a deal, but it could be pretty expensive as well. Try to look in Decode car hire website. I think you'll find some deals so you can decide if it is affordable for you and worth it. about 10 years ago