{"success":true,"merchant":{"name":"Frontier Airlines","slug":"frontier-airlines","category":"Air Travel","standardCategory":"Frontier","confidence":"HIGH","source":"cache","lookupMessage":"Verified category"},"summary":{"merchantName":"Frontier Airlines","merchantSlug":"frontier-airlines","category":"Air Travel","updatedAt":"2026-08-05T18:34:18.969Z","generatedAt":"2026-08-05T18:34:18.969Z","lastVerifiedAt":null,"entityType":"merchant_best_card","entityName":"Frontier Airlines","pageUrl":"https://cardcurator.ai/merchant/frontier-airlines","canonicalUrl":"https://cardcurator.ai/merchant/frontier-airlines","jsonUrl":"https://cardcurator.ai/api/public/merchant/frontier-airlines/summary","methodologyUrl":"https://cardcurator.ai/how-we-rank-cards","dataSourcesUrl":"https://cardcurator.ai/data-sources","sourceUrls":["https://cardcurator.ai/merchant/frontier-airlines","https://cardcurator.ai/api/public/merchant/frontier-airlines/summary","https://cardcurator.ai/how-we-rank-cards","https://cardcurator.ai/data-sources"],"dataVersion":"public-citation-v1","shareTitle":"Best credit card for Frontier Airlines","shareText":"At Frontier Airlines, Marriott Bonvoy Brilliant is currently our top overall pick at 21x, which works out to about 18.9% back based on CardCurator's current point valuations. 21x on hotels participating in Marriott Bonvoy. On $500/month of spend, the top card is worth about $1134/year before signup bonuses or statement credits. Summary generated August 5, 2026. Source: https://cardcurator.ai/merchant/frontier-airlines","evidenceBullets":["Marriott Bonvoy Brilliant: 21x and 18.9% effective return.","At $500/month, that's about $1134/year in rewards value before bonuses.","No separate no-annual-fee fallback currently ranks near the top.","Methodology uses live earn rates, annual fees, and current point valuations."],"bestCard":{"name":"Marriott Bonvoy Brilliant","slug":"marriott-bonvoy-brilliant","programName":"Marriott Bonvoy","annualFee":650,"earnRate":21,"effectiveReturnRate":18.900000000000002,"explanation":"21x on hotels participating in Marriott Bonvoy"},"noFeeCard":null,"alternatives":[{"name":"Frontier Airlines World Mastercard","slug":"frontier-airlines-world-mastercard","earnRate":15,"effectiveReturnRate":13.5,"annualFee":99},{"name":"Wyndham Rewards Earner Premier Card","slug":"wyndham-rewards-earner-premier-card","earnRate":8,"effectiveReturnRate":8.8,"annualFee":395},{"name":"Hilton Honors Aspire","slug":"hilton-honors-aspire","earnRate":14,"effectiveReturnRate":8.4,"annualFee":550}]}}