Delta says goodbye to the last 'Mad Dogs' flying in the US amid coronavirus retirements
Delta Air Lines will retire its last McDonnell Douglas MD-88s and MD-90s in June, bidding goodbye to two jets that have worn the widget for more than 30 years.
The June timeline comes weeks after the Atlanta-based carrier made known that both aircraft, colloquially known as "Mad Dogs," would depart the fleet this year due to the coronavirus pandemic. Neither jet is due to receive much fanfare for its retirement.
Delta described both the MD-88 and MD-90 as long-standing "workhorses" in its fleet in a statement Thursday. It first flew the MD-88 in 1987 and the MD-90 in 1995.
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Carriers around the world are parking planes as restrictions and fears of COVID-19 keep nearly all would-be travelers on the ground. Trade group Airlines for America (A4A) estimates that U.S. carriers have "idled," or not flown in the past week, 3,003 aircraft as of April 28.
American Airlines, for example, is retiring its 80 Airbus A330-300s, Boeing 757 and 767s, and Embraer E190s as a result of the virus.
Delta is idling around 650 jets, or half of the combined 1,316 planes in its mainline and Delta Connection fleets. While plans remain fluid, it has only finalized the retirements of the MD-88, MD-90 and some Boeing 767 aircraft. It will also temporarily park all of its Airbus A320s and many of its Boeing 737s.
Related: Delta to park A320s, many 737s for length of coronavirus downturn
The MD-88s and MD-90s exit at Delta will mark the first time since the early 1980s that no U.S. carrier is flying a so-called Mad Dog in scheduled passenger service. The family, which included the MD-81, -82, -83, -87, -88 and -90, were at one point or another flown by most domestic carriers, with American Airlines flying as many as 362 aircraft in 2001.
American retired its last MD-80s last September.
The MD-80 family lives on in the form of the Boeing 717 at Delta and Hawaiian Airlines. However, even the future of the 717 is in question as the former carrier is reportedly in discussions to swap the jets for new Boeing 737 MAX.
Delta is scheduled to fly the MD-88s and MD-90s on 23 routes from its Atlanta (ATL) hub in May, according to Cirium schedules.
Related: Delta still flying all of its A220s even as the coronavirus grounds more than half its fleet

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There’s a lot to love about the Amex Gold. It’s a fan favorite thanks to its fantastic bonus-earning rates at restaurants worldwide and at U.S. supermarkets. If you’re hitting the skies soon, you’ll also earn bonus Membership Rewards points on travel. Paired with up to $120 in Uber Cash annually (for U.S. Uber rides or Uber Eats orders, card must be added to Uber app and you can redeem with any Amex card), up to $120 in annual dining statement credits to be used with eligible partners, an up to $84 Dunkin’ credit each year at U.S. Dunkin Donuts and an up to $100 Resy credit annually, there’s no reason that foodies shouldn’t add the Amex Gold to their wallet. These benefits alone are worth more than $400, which offsets the $325 annual fee on the Amex Gold card. Enrollment is required for select benefits. (Partner offer)Pros
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- 3 points per dollar spent on flights booked directly with the airline or with amextravel.com
- Packed with credits foodies will enjoy
- Solid welcome bonus
Cons
- Not as useful for those living outside the U.S.
- Some may have trouble using Uber and other dining credits
- You may be eligible for as high as 100,000 Membership Rewards® Points after you spend $6,000 in eligible purchases on your new Card in your first 6 months of Card Membership. Welcome offers vary and you may not be eligible for an offer. Apply to know if you’re approved and find out your exact welcome offer amount – all with no credit score impact. If you’re approved and choose to accept the Card, your score may be impacted.
- Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 3X Membership Rewards® points per dollar spent on flights booked directly with airlines or on AmexTravel.com.
- Earn 2X Membership Rewards® points per dollar spent on prepaid hotels and other eligible purchases booked on AmexTravel.com.
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- $120 Uber Cash on Gold: Add your Gold Card to your Uber account and get $10 in Uber Cash each month to use on orders and rides in the U.S. when you select an American Express Card for your transaction. That’s up to $120 Uber Cash annually. Plus, after using your Uber Cash, use your Card to earn 4X Membership Rewards® points for Uber Eats purchases made with restaurants or U.S. supermarkets. Point caps and terms apply.
- $84 Dunkin' Credit: With the $84 Dunkin' Credit, you can earn up to $7 in monthly statement credits after you enroll and pay with the American Express® Gold Card at U.S. Dunkin' locations. Enrollment is required to receive this benefit.
- $100 Resy Credit: Get up to $100 in statement credits each calendar year after you pay with the American Express® Gold Card to dine at U.S. Resy restaurants or make other eligible Resy purchases. That's up to $50 in statement credits semi-annually. Enrollment required.
- $120 Dining Credit: Satisfy your cravings, sweet or savory, with the $120 Dining Credit. Earn up to $10 in statement credits monthly when you pay with the American Express® Gold Card at Grubhub, The Cheesecake Factory, Goldbelly, Wine.com, and Five Guys. Enrollment required.
- Explore over 1,000 upscale hotels worldwide with The Hotel Collection and receive a $100 credit towards eligible charges* with every booking of two nights or more through AmexTravel.com. *Eligible charges vary by property.
- No Foreign Transaction Fees.
- Annual Fee is $325.
- Terms Apply.

