Delta Drops Five Routes and Parks Vegas for CES

Delta Air Lines will drop five routes by Dec. 19, including daily Las Vegas trips from San Diego and Orange County. The last regular flights on those Southern California pairs leave Nov. 8. Limited January flying is already on the books for CES, the tech show Delta now treats as the peak of its Vegas week.

New York loses three thinner links in the same window: LaGuardia to Tulsa, Saturday-only JFK to Palm Springs, and daily JFK to Milwaukee. A spokesperson said the Vegas trims follow lower winter demand. The New York changes, the airline said, come from a network review.

Five Routes End Before Christmas

All five city pairs come off between early November and mid-December. Four of them are Delta Connection regional jets flying once or twice a day. The Palm Springs trip is a Saturday-only JFK leisure tag, not a workhorse shuttle.

Aviation tracker Ishrion Aviation flagged the cuts in Cirium Diio before the airline circulated a statement. Delta said it “continually evaluates its network to ensure we’re offering a schedule that best meets customer demand,” and that it “will contact impacted customers directly about these changes.”

THE FIVE ROUTES COMING OFF

Las Vegas to Orange County had been restored in early 2025. San Diego had already been cut from two daily flights to one earlier this year, so the November date finishes a retreat that started as a frequency trim.

The CES Exception for San Diego and Orange County

The winter map makes those California pairs look dead. The January map does not. A spokesperson said Delta still plans some limited Las Vegas flying to San Diego and Orange County in early January, aimed at people going to the Consumer Electronics Show.

CES 2027 runs Jan. 6 through Jan. 9 at the Las Vegas Convention Center. In a June 26 schedule notice, Delta said it would operate more than 120 peak-day flights to Harry Reid International Airport for the show, including new one-off nonstops from Hong Kong and Taipei.

CES continues to be one of the most important global events for innovation, and Delta is uniquely positioned to connect customers to Las Vegas from across our network. With new service from Hong Kong and Taipei and expanded flying from key U.S. markets like Austin, we’re making it easier than ever for customers to access CES with a premium, seamless travel experience.

Jeff Arinder, Vice President, International Network Planning, Delta News Hub

Peak-day hub flying in that notice reaches up to 10 daily trips from Atlanta and up to 7 from JFK, Los Angeles, and Detroit, with Seattle at 6 and Boston at 3. Austin goes twice daily from Jan. 4 through Jan. 10. Extra San Diego trips are dated Jan. 3-5 and Jan. 8-10. Orange County is named as extra point-to-point flying, without those same date rows in the table.

That is a different product from a winter leisure schedule. For two months after Nov. 8, Delta is not in the short-haul SoCal-Vegas market as a daily carrier. Then it rebuilds a few days of lift around a trade show it has used as a Vegas showcase, including a Sphere takeover at CES 2025.

Why Tulsa’s LaGuardia Flight Is Disappearing

LaGuardia-Tulsa is the quietest cut, and the one that strands a smaller city. The once-daily CRJ900 started in 2024 and will have lasted less than two years when it ends Nov. 9. American Airlines still sells the same airport pair, with listings around 12 flights a week, so New York-Tulsa does not go dark. It does go back to a one-airline nonstop.

After the last Delta departure, Tulsa’s remaining Delta nonstops are Atlanta and Salt Lake City. That is a hub-and-spoke answer for a market the airline tried as a LaGuardia spoke and then dropped. American had already grown its own LaGuardia-Tulsa flying after Delta arrived, which left two regional-jet schedules chasing the same business traffic.

The apology line in Delta’s statement will matter more in Tulsa than in San Diego. San Diego still has a dense low-cost market to Vegas. Tulsa is losing a second New York option it only just got.

JFK Sheds Milwaukee and Saturday Palm Springs

JFK-Milwaukee is a 747-mile regional hop that became Delta’s alone after JetBlue left the pair in October 2025. The last trip is set for Dec. 19. New York-Milwaukee does not disappear. Delta still lists four daily round trips between LaGuardia and Milwaukee Mitchell, which is the version of the market that fits LaGuardia’s short-haul role.

What Milwaukee loses is a Kennedy arrival, the airport that feeds Delta’s transatlantic and long domestic bank. Anyone who specifically needed JFK will connect or switch airports. Anyone who needed New York can still fly LaGuardia without changing airlines.

Saturday-only JFK-Palm Springs ends the same day. Alaska Airlines still flies that coast-to-coast leisure pair, so the desert market keeps a Kennedy nonstop. Delta is giving up a weekend ski-and-golf tag, not a daily franchise.

Those JFK cuts sit on a year of pruning. Delta’s last JFK trips to Houston Intercontinental, Memphis, and St. Louis operated June 7, with those cities shifted onto LaGuardia. The pattern is consistent: short domestic flying concentrates at LGA, while JFK keeps the longer and higher-yield work. They also land at an airport already losing low-cost flying, including the Frontier exit before Terminal 6 opens.

The Seat Drop Spirit Left Behind

Cirium schedule data puts Delta’s winter departures from Harry Reid about 7% below last winter, with the whole airport also down 7% in 2026. That airport-wide number is easy to read as a Vegas demand story. The passenger counts split it into two stories.

The Las Vegas Convention and Visitors Authority counted 38.5 million visitors in 2025, down 7.5% from 41,676,300 in 2024. Convention attendance held at 6.0 million. Harry Reid handled 55.0 million passengers, down 5.9% from about 58.45 million, the third-highest annual total on record. Hotel occupancy averaged 80.3% and the average daily rate was $183.52.

2026 has not followed that visitor drop in a straight line. LVCVA figures show 3,171,600 visitors in July, up 2.7%. Through July, visitor volume was 22,754,200, up 0.5%, while convention attendance was 3,909,300, up 11.2%. Air traffic did not recover with those counts.

LAS VEGAS THROUGH JULY 2026

• July visitors: 3,171,600, up 2.7% from 3,089,300.
• July airport traffic: 4,412,684 passengers, down 7.6% from 4,773,905.
• Year-to-date visitors: 22,754,200, up 0.5%.
• Year-to-date air traffic: 30,203,954 passengers, down 6.9%.

The Clark County Department of Aviation tied much of the July domestic decline to Spirit Airlines ending service in May. Other carriers filled some of those routes, but capacity has not returned to 2025 levels. Joel Van Over, senior director at Ailevon Pacific Aviation Consulting, told the LVCVA board that if Spirit had been held in place, Las Vegas inbound seats would have matched the prior year. The city, he said, backfilled more than half of Spirit’s former capacity.

Delta’s San Diego and Orange County exits are a separate choice on top of that hole. They take a full-service carrier off two short California corridors where Southwest, Frontier, and Breeze already sell nonstops, and they do it just as the airport’s passenger file still shows 4,412,684 passengers in July, a 7.6% drop even while visitor volume ticked up.

Who Still Flies These City Pairs?

None of the five cuts leaves a city without a path. They change which airline, which New York airport, or which month the nonstop exists.

WHAT STILL FLIES AFTER DELTA LEAVES

• Las Vegas-Orange County: Southwest, Frontier, and Breeze keep nonstops. Listings updated Aug. 31 showed Southwest at 49 flights a week against Delta’s 14.
• Las Vegas-San Diego: Southwest and Frontier remain on the corridor after Delta’s once-daily E175 ends Nov. 8.
• LaGuardia-Tulsa: American keeps the nonstop, about 12 flights a week. Delta still serves Tulsa from Atlanta and Salt Lake City.
• JFK-Milwaukee: No other airline holds that Kennedy pair. Delta’s four daily LaGuardia round trips are the New York substitute.
• JFK-Palm Springs: Alaska Airlines still flies the pair, so the Saturday Delta tag is not the last coast-to-coast nonstop.

For SkyMiles members, the SoCal-Vegas problem is a winter gap with a January patch, not a lost connecting bank. Milwaukee-JFK is the sharper elite inconvenience, because LaGuardia and Kennedy are not interchangeable for international connections. Tulsa’s problem is simpler: one less New York nonstop, and a Delta itinerary that now goes through a hub.

Sacramento and San Jose Came Off First

November’s California cuts are round two. On Jan. 12, 2026, Delta cancelled two-a-day Sacramento and San Jose flights from Las Vegas and cut San Diego from two daily trips to one. San Jose even reappears on the CES extra-flight list for Jan. 3-5 and Jan. 8-10, the same event window as San Diego. The year-round California-Vegas map has been shrinking. The January map has been getting more precise.

DELTA’S YEAR ON THE CALIFORNIA-VEGAS MAP

1. January 12, 2026: Ends two daily Las Vegas trips to Sacramento and San Jose and cuts San Diego from two daily flights to one.
2. May 2026: Spirit shuts down at Harry Reid, punching a hole in low-fare seats that other airlines only partly refill.
3. June 26, 2026: Publishes a CES 2027 buildup of more than 120 peak-day flights, with extra San Diego dates and Orange County named as point-to-point flying.
4. November 8, 2026: Operates the last regular Las Vegas trips to San Diego and Orange County.
5. November 9, 2026: Ends LaGuardia-Tulsa.
6. December 19, 2026: Ends JFK-Milwaukee and Saturday JFK-Palm Springs.
7. January 6, 2027: CES opens, with Delta’s extra San Diego flights dated around the show rather than through the winter.

Customers on the five routes should expect rebooking notes from Delta as each date lands. The SoCal winter gap is the change that will show up on a fare search in November. The CES seats are the change that will show up in January, then come back off.