{"success":true,"comparison":"capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card","summary":{"updatedAt":"2026-07-14T20:04:48.028Z","generatedAt":"2026-07-14T20:04:48.028Z","lastVerifiedAt":null,"entityType":"card_comparison","entityName":"Capital One Spark Cash Plus vs Delta SkyMiles Reserve Business Card","pageUrl":"https://cardcurator.ai/compare/capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card","canonicalUrl":"https://cardcurator.ai/compare/capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card","jsonUrl":"https://cardcurator.ai/api/public/compare/capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card/summary","methodologyUrl":"https://cardcurator.ai/how-we-rank-cards","dataSourcesUrl":"https://cardcurator.ai/data-sources","sourceUrls":["https://cardcurator.ai/compare/capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card","https://cardcurator.ai/api/public/compare/capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card/summary","https://cardcurator.ai/card/capital-one-spark-cash-plus","https://cardcurator.ai/card/delta-skymiles-reserve-business-card","https://cardcurator.ai/how-we-rank-cards","https://cardcurator.ai/data-sources"],"dataVersion":"public-citation-v1","shareTitle":"Capital One Spark Cash Plus vs Delta SkyMiles Reserve Business Card","shareText":"Capital One Spark Cash Plus leads on 3 of 4 headline comparisons: annual fee, estimated welcome bonus, highest listed earn rate, and annual listed credits. This is a starting point; category restrictions and the benefits you actually use can change the better fit. On raw upside, Capital One Spark Cash Plus tops out at 5x versus 3x for Delta SkyMiles Reserve Business Card. Current signup bonus values are roughly $2500 for Capital One Spark Cash Plus and $2000 for Delta SkyMiles Reserve Business Card. Summary generated July 14, 2026. Source: https://cardcurator.ai/compare/capital-one-spark-cash-plus-vs-delta-skymiles-reserve-business-card","evidenceBullets":["Capital One Spark Cash Plus wins 3 of 4 comparison categories in CardCurator's quick verdict model.","Top earn rate: Capital One Spark Cash Plus reaches 5x; Delta SkyMiles Reserve Business Card reaches 3x.","Annual fee: Capital One Spark Cash Plus is $150/yr; Delta SkyMiles Reserve Business Card is $650/yr.","Current public bonus values are approximately $2500 and $2000."],"winner":{"name":"Capital One Spark Cash Plus","slug":"capital-one-spark-cash-plus","score":3,"maxEarnRate":5,"annualFee":150},"loser":{"name":"Delta SkyMiles Reserve Business Card","slug":"delta-skymiles-reserve-business-card","score":1,"maxEarnRate":3,"annualFee":650}}}