Co-branded airline cards: when they actually beat transferable points

Every major airline has co-branded credit cards, Delta SkyMiles, United MileagePlus, American AAdvantage, Southwest Rapid Rewards. For a long time, the conventional wisdom was "they're worse than transferable points cards" and that's usually right. But there are specific situations where a co-branded card actually wins: free checked bags, companion passes, lounge tier qualification. This guide covers when each major airline card is worth it and which to avoid.

The general rule

Co-branded airline cards earn miles in a single airline's program, useless if you don't fly that airline frequently. Transferable points (Chase Ultimate Rewards, Amex Membership Rewards, Capital One Miles, Citi ThankYou) can usually be transferred to multiple airlines, giving flexibility.

So why ever get a co-branded card?

• Specific perks that aren't available elsewhere. Free checked bags, priority boarding, companion pass.
• Loyalty status acceleration. Some cards waive certain elite-status spending requirements.
• Welcome bonuses in airline miles can be the same/higher value than UR/MR points if you would otherwise transfer those points to that airline anyway.

Delta SkyMiles cards

Delta SkyMiles Blue (Amex)

$0 annual fee. 2x at restaurants and on Delta. 1x else. No meaningful perks beyond the basic Delta card. Skip, the Amex Gold beats this for restaurant earning AND offers transferable points.

Delta SkyMiles Gold (Amex)

$150 annual fee. Free first checked bag for you and up to 8 companions on Delta flights. 2x at restaurants, groceries, Delta. $200 Delta flight credit annually after $10K spend (small bar). 15% off award flights.

Math: a couple flying Delta twice a year saves $35 × 4 bags = $140 per trip × 2 trips = $560/year. Card pays for itself with moderate Delta flying. Worth it for Delta-dominated flyers.

Delta SkyMiles Platinum (Amex)

$350 annual fee. Free first checked bag (8 companions). 3x on Delta + hotels, 2x dining, 1x else. Annual companion certificate after card-anniversary, free domestic round-trip companion ticket on a paid main-cabin fare.

The companion certificate is the killer feature. Average value $400-600 per use. For a couple flying Delta domestically once a year, the certificate alone covers the fee.

Delta SkyMiles Reserve (Amex)

$650 annual fee. Delta Sky Club access (lounge). 3x on Delta, 1x else. First-class companion certificate annually. Boost toward MQM (elite-status qualification). $200 Resy credit. $120 Rideshare credit.

Worth it only for serious Delta flyers, those flying 30+ Delta segments per year, pursuing elite status, who use the Sky Club regularly.

United MileagePlus cards

United Explorer (Chase)

$0 first year, $150 thereafter. Free first checked bag (you + companion). Priority boarding. 2 United Club passes/year (one-time use lounge access). 2x United, dining, hotels.

Solid mid-tier card. The free checked bag for a couple traveling on United covers the fee on a single round trip.

United Quest (Chase)

$250 annual fee. Free first AND second checked bag for you and a companion. $200 United travel credit ($75 in awards). 5K anniversary miles after spending $20K. 3x United, 2x travel/ dining/select streaming.

For a family that flies United often, the second-bag savings + travel credit make this work. For solo flyers without heavy United mileage, the United Explorer is sufficient.

United Club Infinite (Chase)

$695 annual fee. United Club lounge access (you + 2 guests or family). Free first AND second checked bag. Priority access. 4x United, 2x travel/dining.

Comparable in cost to Amex Platinum or CSR's lounge tier. Worth it only for United-loyal flyers using Club lounges regularly. Otherwise, the Sapphire Reserve's broader Priority Pass + Sapphire Lounge access is more flexible.

American AAdvantage cards

Citi AAdvantage Platinum Select

$99 annual fee, waived first year. Free first checked bag (4 companions). Priority boarding. 2x dining, gas, AA. Solid mid-tier American Airlines card.

Citi AAdvantage Executive

$595 annual fee. Admirals Club lounge access (you + family/guests). Loyalty Point head-start. 4x AA, 1x else. Boost toward elite status.

Worth it only for AA-dedicated flyers using Admirals Club regularly. Otherwise, get an Amex Platinum for broader lounge access.

Barclays AAdvantage Aviator Red

$99 annual fee. Welcome bonus available after a single purchase + paying the annual fee, sometimes 75K+ miles for that minimal effort. Notoriously easy. Free first checked bag.

For one-time use as a welcome-bonus play, this card has been a regularly recommended target on the points-and-miles forums for years. Cancel after the bonus posts and the second annual fee.

Southwest cards

Southwest's big differentiator is the Companion Pass: a domain-anointed perk where one person flies free with you on every Southwest flight for up to two years once you earn 135,000 qualifying points in a calendar year. Welcome bonuses count toward the qualifying total.

The Companion Pass strategy

The classic move: hold off on Southwest cards until late in calendar year (October-December). Apply for two Southwest cards back-to-back, earning two welcome bonuses worth ~80K + 50K + spending bonus = 135K+ qualifying points. The Companion Pass is now valid for the rest of that calendar year AND the entire following year.

For a couple flying Southwest 3+ trips a year, free companion flights for two years = ~$1,500-3,000 in saved flight cost. The cards pay for themselves enormously.

Cards to use:

• Southwest Rapid Rewards Priority: $149/yr. 7,500-point anniversary bonus.
• Southwest Rapid Rewards Premier: $99/yr. 6,000-point anniversary bonus.
• Southwest Rapid Rewards Plus: $69/yr. 3,000-point anniversary bonus.
• Plus a Southwest business card if you have any business income.

Alaska, JetBlue, and others

Alaska, now the Atmos card family (rebranded 2025)

Atmos Rewards Visa Signature: $95 annual fee. Free first checked bag. Famous "Companion Fare", buy one ticket, companion flies for $99 + taxes once a year.

For West Coast travelers and those flying to Hawaii, Alaska's Companion Fare is a rare offer with real value (often $400-800 in savings on a single round trip).

JetBlue Plus

JetBlue Plus (Barclays): $99 annual fee. 5K anniversary points. 6x JetBlue, 2x dining/ groceries. 50% off in-flight purchases. 10% miles rebate on award flights, significantly improves award redemption value.

Hawaiian Airlines

Niche. Worth it only if you're Hawaiian-dedicated. After the Alaska/Hawaiian merger completes, expect changes.

Frontier and Spirit

Skip both. Marginal welcome bonuses, limited perks, and the underlying airlines have inflexible award charts.

Airline-specific card vs transferable points card

Decision tree:

• If you fly one airline 4+ times a year → consider the airline card for the perks (free bags, companion). Mid-tier ($95-250 fee) usually pays for itself.
• If you fly multiple airlines, or aren't loyal → use a transferable-points card (Sapphire Preferred / Reserve, Amex Gold / Platinum, Venture X). Transfer points to whichever airline matches your trip.
• If you live in a hub city (DFW for AA, ATL for Delta, ORD for United, LAX for many, SLC for Delta) → loyalty to the local hub airline pays off via lounge access + status.
• For Companion Passes and similar perks not available via transferable points → the airline card is the only way.

Which co-branded perks actually matter

Free checked bag

Real value: $35-40 per bag per direction. For a family flying often, this saves serious money, and reduces decision fatigue about whether to bring a second bag.

Priority boarding

Marginal value but useful in practice. Better overhead bin space, less stress.

Lounge passes (annual)

Two passes a year is a marketing perk. Doesn't replace full lounge access; useful as a one-off.

Anniversary point bonus

5,000-10,000 miles annually. Often worth $50-150. Decent but not a primary reason to hold the card.

Companion certificates / passes

The biggest unique perk. Delta's Platinum/Reserve certificates, Southwest's Companion Pass, Alaska's Companion Fare, JetBlue's NRSAs, these can be worth $300-1,500+ per use and aren't replicable via transferable points.

Status acceleration

Some co-branded cards include credits toward elite-status qualification. Examples:

• Delta Reserve: 15K MQMs/year + 25K MQMs at $25K spend.
• AA Executive: Loyalty Point head-start.
• United Quest/Club: $25K spend = elite-qualifying point boost.

For frequent flyers chasing status, these accelerators can bridge the final gap. For non-status-chasers, ignore.

Recap

• Co-branded airline cards make sense when you're loyal to one airline and use the unique perks (bags, companion, status).
• Otherwise, a transferable points card (CSR, Amex Gold, Venture X) is more flexible.
• Best mid-tier airline cards: Delta Gold, United Explorer, Citi AAdvantage Platinum, Atmos Visa Signature.
• Best premium airline cards: Delta Platinum (companion cert), United Quest (free bags + travel credit), Southwest cards (Companion Pass strategy).
• Skip Frontier, Spirit, and most $0 fee airline cards.
• Southwest's Companion Pass is the single most valuable airline-card play available, execute in late Q4 to maximize the 2-year benefit window.