You Can Now Use Delta Global Upgrade Certificates on Korean Air
Yesterday Delta revealed mileage earnings for flights on its new joint-venture partner, Korean Air. Now we have even more good news about the integration of the two carriers.
Delta announced that you will be able to use Global Upgrade Certificates on Korean. This is similar to how you can use Global Upgrades and even SkyMiles to bump yourself up on Delta's other joint venture partner Virgin Atlantic. Global Upgrade Certificates can also be redeemed on select Air France, KLM and Aeromexico flights.
Global Upgrade certificates are available as a choice benefit for Delta Diamond Medallions, the carrier's highest elite tier.
Using a global upgrade can be difficult, even on Delta itself. When using them on Korean, you'll be restricted to purchasing Y, B and M fare classes which usually means you'll have to pay a pretty penny for an upgradable ticket. Still, with the high quality of Korean's business class, it could be worth redeeming a certificate on the carrier.

Upgrades have to be confirmed at least 24 hours prior to departure, and you unfortunately can't put yourself on the waitlist. And upgrading to first class isn't an option either.
H/T: One Mile At A Time
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Rewards
| 2X miles | 2 miles per dollar on every purchase |
| 5X miles | 5 miles per dollar on flights and vacation rentals booked through Capital One Business Travel |
| 10X miles | 10 miles per dollar on hotels and rental cars booked through Capital One Business Travel |
Intro offer
Annual Fee
Recommended Credit
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The Capital One Venture X Business Card has all the Capital One Venture X Rewards Credit Card has to offer and more. It offers an incredible welcome bonus and requires an equally impressive spend to qualify. In addition, the card comes with premium travel perks like annual travel credit. (Partner offer)Pros
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Cons
- The card requires significant spending to earn the welcome offer.
- Another drawback is that the annual travel credit can only be used on bookings made through Capital One Business Travel.
- LIMITED-TIME OFFER: Earn up to 400K bonus miles: 200K miles when you spend $30K in the first 3 months, and an additional 200k miles when you spend $150k in the first 6 months
- Earn unlimited 2X miles on every purchase, everywhere—with no limits or category restrictions
- Earn 10X miles on hotels and rental cars and 5X miles on flights and vacation rentals booked through Capital One Business Travel
- With no preset spending limit, enjoy big purchasing power that adapts so you can spend more and earn more rewards
- Empower your teams to make business purchases while earning rewards on their transactions, with free employee and virtual cards. Plus, automatically sync your transaction data with your accounting software and pay your vendors with ease
- Redeem your miles on flights, hotels and more. Plus, transfer your miles to any of the 15+ travel loyalty programs
- Every year, you'll get 10,000 bonus miles after your account anniversary date. Plus, receive an annual $300 credit for bookings made through Capital One Business Travel
- Receive up to a $120 credit for Global Entry or TSA PreCheck®. Enjoy access to 1,300+ airport lounges worldwide, including Capital One Lounge locations and Priority Pass™ lounges, after enrollment
- Enjoy a $100 experience credit and other premium benefits with every hotel and vacation rental booked from the Premier Collection
- This is a pay-in-full card, so your balance is due in full every month
Rewards Rate
| 2X miles | 2 miles per dollar on every purchase |
| 5X miles | 5 miles per dollar on flights and vacation rentals booked through Capital One Business Travel |
| 10X miles | 10 miles per dollar on hotels and rental cars booked through Capital One Business Travel |
Intro Offer
Earn 200K miles when you spend $30K in the first 3 months, and an additional 200K miles when you spend $150K in the first 6 monthsLIMITED-TIME OFFER: Earn up to 400K bonus milesAnnual Fee
$395Recommended Credit
Credit ranges are a variation of FICO® Score 8, one of many types of credit scores lenders may use when considering your credit card application.740-850Excellent
Why We Chose It
The Capital One Venture X Business Card has all the Capital One Venture X Rewards Credit Card has to offer and more. It offers an incredible welcome bonus and requires an equally impressive spend to qualify. In addition, the card comes with premium travel perks like annual travel credit. (Partner offer)Pros
- The Capital One Venture X business card has a very lucrative welcome offer.
- In addition, the card comes with many premium travel perks such as an annual $300 credit for bookings through Capital One Business Travel.
- Business owners are also able to add employee cards for free.
Cons
- The card requires significant spending to earn the welcome offer.
- Another drawback is that the annual travel credit can only be used on bookings made through Capital One Business Travel.
- LIMITED-TIME OFFER: Earn up to 400K bonus miles: 200K miles when you spend $30K in the first 3 months, and an additional 200k miles when you spend $150k in the first 6 months
- Earn unlimited 2X miles on every purchase, everywhere—with no limits or category restrictions
- Earn 10X miles on hotels and rental cars and 5X miles on flights and vacation rentals booked through Capital One Business Travel
- With no preset spending limit, enjoy big purchasing power that adapts so you can spend more and earn more rewards
- Empower your teams to make business purchases while earning rewards on their transactions, with free employee and virtual cards. Plus, automatically sync your transaction data with your accounting software and pay your vendors with ease
- Redeem your miles on flights, hotels and more. Plus, transfer your miles to any of the 15+ travel loyalty programs
- Every year, you'll get 10,000 bonus miles after your account anniversary date. Plus, receive an annual $300 credit for bookings made through Capital One Business Travel
- Receive up to a $120 credit for Global Entry or TSA PreCheck®. Enjoy access to 1,300+ airport lounges worldwide, including Capital One Lounge locations and Priority Pass™ lounges, after enrollment
- Enjoy a $100 experience credit and other premium benefits with every hotel and vacation rental booked from the Premier Collection
- This is a pay-in-full card, so your balance is due in full every month

