How to Fly Delta One Lie-Flat Seats on Domestic Routes in December 2025

Flying first class on a domestic flight usually means a wider seat and a bit more legroom. But savvy travelers know there's a way to upgrade your experience without paying international prices. Delta occasionally operates its long-haul aircraft with lie-flat Delta One seats on domestic routes, giving passengers a chance to enjoy premium comfort on shorter flights.

These routes change each month based on Delta’s scheduling needs. In December 2025, Delta is operating 2,435 domestic flights with Delta One business-class seats across 65 different routes.

Here's a breakdown of where you'll find Delta's best business-class seats on domestic routes in December 2025 — and the best ways to book them with points and miles.

Domestic Routes With Delta One Seats in December 2025

In December 2025, Delta scheduled 2,435 domestic flights with lay-flat Delta One business class seats across 65 different routes. Don't care about the details of which seat type you get as long as it's lie-flat? Here's a breakdown of all options for December 2025:

Image generated using Great Circle Mapper

However, frequent Delta flyers know there's a big difference between the business class seats on Delta aircraft. Let's break down the schedule by aircraft type.

Airbus A350

Delta originally debuted its Delta One Suites on its Airbus A350, which remains a top option for flying up front in comfort. The staggered 1-2-1 seating and closing suite doors help provide a sense of privacy. If you want to sit close to the window, make sure to pick your seat carefully. The staggered seating arrangement means that not all window seats are next to a window.

Delta One Suites on the Airbus A350. Credit: JT Genter/AwardWallet.

For the best experience, look for a seat map like this. By looking carefully, you can see which seats are slightly closer to the window.

In December 2025, Delta is scheduled to fly the Airbus A350 on just one round-trip domestic route:

• Atlanta (ATL) to Los Angeles (LAX) — and reverse

Plus six one-off flights:

• Atlanta (ATL) to Minneapolis/St. Paul (MSP) on December 2
• Minneapolis/St. Paul (MSP) to Atlanta (ATL) on December 2
• Atlanta (ATL) to Orlando (MCO) on December 19
• Orlando (MCO) to Atlanta (ATL) on December 19
• Detroit (DTW) to Atlanta (ATL) on December 23
• Los Angeles (LAX) to Atlanta (ATL) on December 29

According to Delta's schedule, here are the exact flights where Delta will operate the Airbus A350 in December 2025:

Airbus A330

Delta's Airbus A330 fleet is a bit varied. The newest Delta One Suites seats are found on Delta's Airbus A330-900neo aircraft.

Delta One Suites on A330-900neo aircraft. Credit: Ryan Smith/AwardWallet

Older Delta Airbus A330 aircraft still have reverse-herringbone seats in business class. These business-class seats don't have all the perks of the newest Delta One Suites. However, it's still a comfortable way to fly on domestic routes.

Delta A330-300 business class cabin. Credit: Delta.

You can find Delta's Airbus A330 flying on 8 round-trip domestic routes throughout December 2025:

• Atlanta (ATL) to Honolulu (HNL) — and reverse
• Atlanta (ATL) to Maui (OGG) — and reverse
• Atlanta (ATL) to Phoenix (PHX) — and reverse
• Detroit (DTW) to Honolulu (HNL) — and reverse
• Detroit (DTW) to Phoenix (PHX) — and reverse
• Minneapolis/St. Paul (MSP) to Honolulu (HNL) — and reverse
• New York (JFK) to Salt Lake City (SLC) — and reverse
• Los Angeles (LAX) to New York (JFK) — and reverse

Plus 21 one-off flights across 9 routes:

• Atlanta (ATL) to Detroit (DTW) on December 14, 16, and 17
• Atlanta (ATL) to Minneapolis/St. Paul (MSP) on December 8
• Atlanta (ATL) to New York (JFK) on December 19
• Atlanta (ATL) to Orlando (MCO) on December 11, 20, and 21
• Atlanta (ATL) to Tampa (TPA) on December 16, 17, and 20
• Detroit (DTW) to Atlanta (ATL) on December 14, 16, and 17
• Orlando (MCO) to Atlanta (ATL) on December 11, 20, and 21
• Minneapolis/St. Paul (MSP) to Atlanta (ATL) on December 8
• Tampa (TPA) to Atlanta (ATL) on December 16, 17, and 20

According to Delta's schedule, here are the exact flights where Delta is operating the Airbus A330 in December 2025:

Boeing 767

Last but not least, Delta One business class seats can be found on Delta's Boeing 767 fleet. Here again, the experience differs depending on what aircraft subtype you book.

The Boeing 767-300 subtype has been refreshed, but the seats are still rather outdated. And you can tell that Delta isn't really proud of this product, as it hasn't posted any recent photos of the business class interior.

Credit: Delta

Meanwhile, Delta retrofit a version of its Delta One Suites on its Boeing 767-400ER aircraft. Besides missing a suite door, this business-class seat is quite similar to the Delta One Suites on Delta's other widebody aircraft.

Delta Boeing 767-400 business class cabin. Credit: Delta.

You can find Delta's Boeing 767 flying on 22 round-trip domestic routes in December 2025:

• Atlanta (ATL) to Anchorage (ANC) — and reverse
• Atlanta (ATL) to Honolulu (HNL) — and reverse
• Atlanta (ATL) to Las Vegas (LAS) — and reverse
• Atlanta (ATL) to Los Angeles (LAX) — and reverse
• Atlanta (ATL) to Miami (MIA) — and reverse
• Atlanta (ATL) to New York (JFK) — and reverse
• Atlanta (ATL) to Orlando (MCO) — and reverse
• Atlanta (ATL) to Phoenix (PHX) — and reverse
• Atlanta (ATL) to Salt Lake City (SLC) — and reverse
• Atlanta (ATL) to San Francisco (SFO) — and reverse
• Atlanta (ATL) to Seattle (SEA) — and reverse
• Atlanta (ATL) to Tampa (TPA) — and reverse
• New York (JFK) to Honolulu (HNL) — and reverse
• New York (JFK) to Los Angeles (LAX) — and reverse
• New York (JFK) to Phoenix (PHX) — and reverse
• New York (JFK) to San Francisco (SFO) — and reverse
• Los Angeles (LAX) to Honolulu (HNL) — and reverse
• Los Angeles (LAX) to Kona (KOA) — and reverse
• Los Angeles (LAX) to Maui (OGG) — and reverse
• Salt Lake City (SLC) to Honolulu (HNL) — and reverse
• Salt Lake City (SLC) to Kona (KOA) — and reverse
• Salt Lake City (SLC) to Maui (OGG) — and reverse

…and a slew of one-off flights across 12 routes:

• Atlanta (ATL) to Boston (BOS)
• Atlanta (ATL) to Detroit (DTW)
• Atlanta (ATL) to Minneapolis (MSP)
• Boston (BOS) to Atlanta (ATL)
• Denver (DEN) to New York (JFK)
• Detroit (DTW) to Atlanta (ATL)
• New York (JFK) to Denver (DEN)
• New York (JFK) to San Diego (SAN)
• New York (JFK) to Salt Lake City (SLC)
• San Diego (SAN) to New York (JFK)
• Salt Lake City (SLC) to Los Angeles (LAX)
• Salt Lake City (SLC) to New York (JFK)

According to Delta's schedule, here are the exact flights where Delta is operating its Boeing 767 in December 2025:

Best Ways To Book Delta One Domestic Routes With Miles

Delta SkyMiles

The most straightforward way of booking Delta award flights is via Delta SkyMiles. The issue? Delta SkyMiles' dynamic award pricing model means you have no idea how much an award will cost until you search for the flight.

One example I found using Delta SkyMiles is from Atlanta (ATL) to Tampa (TPA) on the Boeing 767-300 for 29,500 SkyMiles one-way — or 15% less through the Delta cardmember award discount. That can drop the price of flying Delta One seat to 25k SkyMiles. Just note that this price could change (up or down) at any time.

Credit: Delta

If you don't have a co-branded Delta credit card, now's a great time to get one. Here are the current offers available to eligible new cardholders:

Delta SkyMiles^® Gold American Express Card

Welcome Offer: Earn 50,000 Bonus Miles after you spend $2,000 in eligible purchases on your new Card in your first 6 months of Card Membership.

Apply Now

Annual Fee$0 introductory annual fee for the first year, then $150Rates & Fees
(Terms apply)

Credit ScoreExcellent, Good

• 2X miles per dollar spent on purchases made directly with Delta
• 2X miles per dollar spent at U.S. supermarkets
• 2X miles per dollar at restaurants worldwide, plus takeout and delivery in the U.S.
• 1X miles on all other eligible purchases

Delta SkyMiles^® Platinum American Express Card

Welcome Offer: Earn 60,000 Bonus Miles after you spend $3,000 in eligible purchases on your new Card in your first 6 months of Card Membership.

Apply Now

Annual Fee$350Rates & Fees
(Terms apply)

Credit ScoreExcellent, Good

• 3X miles per dollar spent on purchases made directly with Delta
• 3X miles per dollar at hotels
• 2X miles per dollar at U.S. supermarkets
• 2X Miles per dollar at restaurants worldwide, plus takeout and delivery in the U.S.
• 1 mile on every eligible dollar spent on purchases.

Delta SkyMiles^® Reserve American Express Card

Welcome Offer: Earn 70,000 Bonus Miles after you spend $5,000 in eligible purchases on your new Card in your first 6 months of Card Membership.

Apply Now

Annual Fee$650Rates & Fees
(Terms apply)

Credit ScoreExcellent, Good

• 3X miles per dollar spent on purchases made directly with Delta
• 1X miles on every eligible dollar spent on purchases.

Another way to earn Delta SkyMiles is by transferring Amex Membership Rewards points. Alternatively, you can transfer hotel points to Delta. However, the transfer rates aren't great:

Air France/KLM Flying Blue

Another option for booking Delta One seats on domestic routes is Flying Blue. The fixed award price for these first-class awards is roughly based on the distance of the flight. Some examples include:

• Atlanta (ATL) to Orlando (MCO): 15k Flying Blue miles
• Atlanta (ATL) to Detroit (DTW): 22k Flying Blue miles
• Atlanta (ATL) to New York (JFK): 28k Flying Blue miles
• Atlanta (ATL) to Minneapolis (MSP): 33k Flying Blue miles

Credit: Flying Blue

An advantage of using Flying Blue miles is that it's incredibly easy to accumulate these miles. Plus, there's often a transfer bonus that effectively drops the price you'll need to pay. Here are the current bank transfer options to Flying Blue:

Related: Which Credit Card Should You Use to Pay Award Taxes and Fees?

Virgin Atlantic Flying Club

Virgin Atlantic's Flying Club program prices Delta award flights based on the distance of the flight. Business class award rates quickly climb into astronomical territory. That means this booking option is only helpful on short, nonstop routes. Even worse, Virgin Atlantic recently increased award rates on Delta award flights. Now, you'll need to pay:

• 21,000 Virgin points each way for flights under 500 miles
• 41,500 Virgin points each way for flights between 501-1,000 miles
• 59,500 Virgin points each way for flights between 1,001-1,500 miles

As you can see, this sweet spot will only be useful in niche cases — such as Delta first class between Atlanta and Orlando:

Credit: Virgin Atlantic

Virgin Atlantic is a transfer partner of most bank transferable point programs, making it incredibly easy to accumulate points when this booking option makes sense:

Related: Delta Award Routes That You Can Book for Just 7,500 Points

Bottom Line

You can greatly improve your in-flight experience by booking Delta's internationally configured widebody aircraft on domestic routes. Some of these routes justify a long-haul aircraft — such as Delta's long flights to Hawaii and transcontinental flights. Other routes don't necessarily justify a lay-flat business class seat — such as sub-1,000-mile flights from Atlanta to Orlando, Detroit, and New York.

Especially when you can book these routes through distance-based mileage programs, you can get a really solid Delta One experience on domestic routes for a reasonable mileage cost.

For rates and fees of the cards mentioned in this post, please visit the following links: Delta SkyMiles^® Gold American Express Card (Rates & Fees), Delta SkyMiles^® Platinum American Express Card (Rates & Fees), and Delta SkyMiles^® Reserve American Express Card (Rates & Fees)

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