Both cards allow you to transfer points to external partners. However, the Capital One Venture Rewards card has fewer partners, including AerClub, British Airways Executive Club, Emirates Skywards, JetBlue TrueBlue, Singapore Airlines KrisFlyer, Virgin Atlantic Flying Club, IHG Rewards Club, Marriott Bonvoy and World of Hyatt.
On the other hand, Chase Sapphire Preferred has many more partners, including Accor Live Limitless, Aeromexico Club Premier, Air France KLM Flying Blue, Air Canada Aeroplan, Asia Miles, Avianca LifeMiles, British Airways Avios, Emirates Skywards, Etihad Guest, Infinity MileageLands, Finnair Plus, Qantas Frequent Flyer, Singapore Airlines KrisFlyer, TAP Air Portugal Miles&Go and Turkish Airlines Miles&Smiles.
Winner: Chase Sapphire Preferred