(1) Includes a
selling concession of up to 0.9250 % that will be paid to certain securities dealers (the Selected Dealers).
Supplemental Plan of Distribution. Except for Notes sold to level-fee accounts, Notes offered to the public will be offered at the selling price set forth in
this Pricing Supplement. Notes sold by Selected Dealers on an agency basis to non-level fee accounts will be sold at the selling price. Notes purchased by Selected Dealers for their own account may be purchased at the selling price less the selling
concession specified in Note (1) above. Notes purchased by Selected Dealers on behalf of level-fee accounts may be sold to such accounts at the selling price less the selling concession, in which case, such Selected Dealers will not retain any
portion of the selling price as compensation.
Redemption Information: Callable in whole or in part, at any time on or after 5/15/2019.
Optional Redemption: Discover Financial Services may, at its option, at any time on or after 05/15/2019, redeem these Discover Financial Services InterNotes in
whole or in part on no less than 10 nor more than 30 days prior notice delivered to the holders of these Discover Financial Services InterNotes. These Discover Financial Services InterNotes will be redeemable at a redemption price equal to
100% of the principal amount of the notes to be redeemed, plus accrued and unpaid interest. If fewer than all of these Discover Financial Services InterNotes are to be redeemed, the Trustee will select the Notes for redemption on a pro rata basis,
by lot or by such other method in accordance with the DTCs procedures. These Discover Financial Services InterNotes will be redeemed in denominations of $1,000 and integral multiples of $1,000 in excess thereof. If these Discover Financial
Services InterNotes are to be redeemed in part only, the notice of redemption will state the portion to be redeemed. Unless Discover Financial Services defaults in payment of the redemption price, on and after the redemption date, interest will
cease to accrue on these Discover Financial Services InterNotes or the portions of these Discover Financial Services InterNotes called for redemption.