Certificates
Track free nights and other card certificates
Miles shows your hotel free nights, airline companion fares and awards, and lounge-pass bundles, with each one's status (available, pending, or used) and expected expiration.
This example shows hotel free nights. Miles tracks companion fares, companion awards, and lounge passes in the same view.
Available, pending, or used
Each certificate is available, pending, or used. One that requires a spending threshold stays pending until you confirm that you earned it: Miles cannot see your card spending and does not infer that a threshold was met. A spending connector beside Miles in your AI can supply that confirmation.
When the posting date is uncertain, Miles shows an estimated expiration month. Issuers may post a certificate several weeks after the card anniversary that earns it.
What Miles tracks
Miles tracks hotel free nights from cards such as World of Hyatt, Marriott Bonvoy, and IHG One Rewards. It also tracks airline companion fares and awards from Alaska, Delta, American, and JetBlue cards, plus countable lounge passes such as the AAdvantage Globe Mastercard's four annual Admirals Club passes. Each entry includes its status, remaining quantity, and estimated expiration.
Values are estimates, not guaranteed savings. A points-based companion award uses your valuation for that program. A flat-fare certificate uses a conservative estimate. If Miles cannot estimate a certificate's value, it says so. For a bundle of lounge passes, Miles reports how many remain and marks the bundle used only when none remain.
Booking stays with the provider
Miles tracks certificates and expiration dates, but it does not make bookings. Book a free night through the hotel, redeem a companion benefit with the airline, and present a lounge pass where the provider requires it.
Try asking
- Which cards come with a free night certificate?What free night certificates do I have?
- How do free night certificate expiration dates work?Which of my free night certificates are expiring soon?
- Is the World of Hyatt card's free night worth the annual fee?Have I used my Hyatt free night award this year?
Where it lives
- In the app
- Perks
- Ask Miles
- “What free night certificates do I have?”
- Over MCP
- get_free_nights, set_free_night_status, get_certificates, set_certificate_status
Requires an account: a trial session can look this up but cannot save changes.
Checked Aug 14, 2026
More in the FAQ.