Most people pick a travel card, assume it earns well on flights, and move on. That's a mistake.
Some cards earn 5× on airfare. Others earn 2× on everything. Some need you to book through a portal. Some pay out better when you book direct with the airline. And the card with the biggest earning number isn't always the one that puts the most value in your pocket.
This guide covers who the right card is for — and when to skip the premium options entirely.
The thing most guides won't tell you
Earning rate and redemption value are two separate things. A card that earns 5× SkyMiles on Delta flights sounds great until you realize Delta miles are worth about 1¢ each in most redemptions. Meanwhile, a card earning 3× Chase Ultimate Rewards can deliver 1.5–2¢ per point when you transfer to the right partner. The math matters more than the headline number.
Before you optimize earning, know what you're earning toward.
If you fly one airline almost exclusively
Get that airline's co-brand card. The earning rates are higher in-program, and the perks — free checked bags, priority boarding, companion certificates — are built around how you actually travel.
United flyers: United Club Infinite
Earns 4× on United purchases. Free first and second bags. United Club lounge access included. If you're flying United weekly, this pays for itself fast.
JetBlue flyers: JetBlue Premier
Earns 6× on JetBlue, $300 in travel credits per year, and BlueHouse lounge access plus Priority Pass Select. High fee ($499), but JetBlue loyalists typically find it worth it.
American Airlines flyers: Citi AAdvantage Executive
Includes full Admirals Club membership — not just passes — which alone retails at $800+/year. Niche card, but if you're in AA's ecosystem it's hard to beat.
Delta flyers: Delta SkyMiles Platinum Business
Earns 3× on Delta and includes a companion certificate and GE/TSA credit. Fine for Delta loyalists, though SkyMiles redemptions require realistic expectations.
The downside of co-brand cards: your points are locked to one program. If the airline has a bad award chart, a blackout, or your plans change, you're stuck. That's why flexible-currency cards exist.
If you fly multiple airlines or want flexibility
Flexible-currency cards let you earn points and then pick the best transfer partner for each trip. Chase Ultimate Rewards, Amex Membership Rewards, and Capital One Miles all work this way.
Chase Sapphire Reserve
Earns 3× on travel — and Chase defines travel broadly: flights, hotels, transit, rideshare, parking, tolls. The $300 annual travel credit applies automatically to almost any travel purchase without you doing anything. Transfers go to United, Southwest, British Airways, Flying Blue, Singapore Airlines, and Hyatt among others. Strong all-around setup.
Amex Platinum
Earns 5× on flights booked directly with airlines and through AmexTravel — the highest earn rate on airfare from a general travel card. But outside of airfare, earning drops sharply. This card earns heavily on one category and coasts on everything else. Worth it if flights make up a large chunk of your spend.
Chase Sapphire Preferred
Is the $95 version of the Reserve. Same transfer partners, same broad travel definition, 3× on travel. If you don't need the lounge access or the $300 credit, this is often the smarter call.
Capital One Venture X
Earns 2× on everything and 5× when you book through Capital One Travel. The annual $300 travel credit through the portal plus 10,000 anniversary miles effectively makes the $395 fee more like $95 after credits. Simpler math than most premium cards.
The portal question
Several cards earn extra points when you book through their portal instead of directly with the airline. Higher earn rate — but sometimes higher prices. Capital One Travel, Chase Travel, and Citi Travel all have this tradeoff.
Check both before booking. Book wherever the total value (points earned minus price premium) is better. This is not always the portal.
Also worth knowing: when you book through a portal, the reservation often shows the portal as the booking agent, not you directly. This can affect airline status accrual. Most programs still credit elite qualifying miles, but verify before assuming.
What people get wrong
Booking through the airline's website to "earn miles" on a co-brand card — while also holding a card with 3× on travel that would've given them more value. Pick the card with the best outcome for each purchase and stick to it.
Earning airline miles on non-airline spend. Most airline co-brands earn 1–2× on everyday purchases. That's weak. If you're not flying, put spend on a card with better everyday rates and save the co-brand for actual flights.
Forgetting that trip delay insurance and baggage delay coverage have real dollar value. A $350 hotel stay from a delayed flight covered by your card isn't hypothetical — it happens, and cards that have primary coverage pay out.
Bottom line
- ✓If you're loyal to one airline: that airline's co-brand card.
- ✓If you want flexibility: Chase Sapphire Reserve or Preferred for access to Chase's transfer partners (including Hyatt).
- ✓If you want the highest airfare earn rate: Amex Platinum — but only if you'll also use the other benefits.
- ✓If you want simple math with a low effective fee: Capital One Venture X.
Don't optimize for earning rate in isolation. Know what the points are worth before you pick the card.