Southwest Airlines began offering assigned seats for flights starting January 27, 2026, on July 29, 2025. Travellers could start reservations and select seats for their journey on or after January 27, with the option to buy additional legroom seats.

Southwest Airlines declared Thursday that it will add more trips to and from Las Vegas and Orlando at the Louis Armstrong New Orleans International Airport in Kenner in its 2026 flight schedule. The flight booking for the summer of 2026 is planned on October 9, 2025, with expanded frequencies, service enhancements, and new routes.
Key moves include the increased year-over-year frequencies in Las Vegas and Orlando routes to provide inaugural service to Anchorage, starting May 15, 2026, and a new international non-stop Las Vegas to Cancun route, which starts on June 4, 2026, with a San Diego peak-day record of 134 trips to 43 destinations. This schedule is available for booking from August 3, 2026, and cabin changes add premium seating with other premium services onboard on 737-8 aircraft.
Inaugural Services And New Routes
- Southwest Airlines is set to soar to new heights from cities such as Las Vegas, Orlando, and San Diego for the summer of 2026.
- The highlights of this strategic move are its new operation at Alaska Airlines’ Ted Stevens Anchorage International Airport.
- The airline will start introducing once-daily flights connecting Anchorage with Denver and Las Vegas starting on May 15, 2026.
- It marks a significant change for the airline as it strengthens its presence in the Alaskan market.
- Southwest Airlines is boosting its Las Vegas operations in addition to the Anchorage routes.
- It will increase the frequency of its routes to the popular destinations known for the desert.
- Travellers can enjoy the offerings by Southwest of exclusive non-stop service between Las Vegas and Cancun, Mexico, which is launching on June 4, 2026.
- Southwest Airlines will also begin the direct flights from Las Vegas to both Los Cabos and Puerto Vallarta, Mexico along with Cancun to enhance its portfolio of the international operations.
Insights About West Coast Growth
Southwest will add new flights from New Orleans to two touristy US cities for the summer of 2026 to meet the requirements of its passengers. The opening of the new Terminal 1 in San Diego will enable the airline to operate a record high of 134 peak-day departures to up to 43 destinations. A new non-stop flight route between San Diego and Boston starts June 4.
Additionally, San Diego to San Francisco flights will increase to eight daily frequencies on peak days. The airline will expand its Los Angeles service to Sacramento, San Jose, and San Francisco in the LA Basin while restoring Burbank-San Francisco flights.
When it comes to Austin, Southwest Airlines will also launch new flights on a daily basis to Cincinnati and resume seasonal flights to Seattle. The airline also plans to increase Austin to Indianapolis flying service to three daily frequencies and Austin to San Francisco to two weekday flights, which go head-to-head with Delta Airlines in the capital city of Texas.
Look at the table below to know the newly announced routes by Southwest for its Summer 2026 schedule:
Route | Start Date |
Anchorage – Denver | May 15, 2026 |
Anchorage – Las Vegas | May 15, 2026 |
Las Vegas – Cancún | June 4, 2026 |
Las Vegas – Los Cabos | June 4, 2026 |
Las Vegas – Puerto Vallarta | June 4, 2026 |
San Diego – Boston | June 4, 2026 |
Austin – Cincinnati | June 4, 2026 |
Burbank – San Francisco | June 4, 2026 |
International Services From Las Vegas
Southwest Airlines will launch non-stop international services from Las Vegas next year.
It announced services to Cancun, which will start from June 4, and the additional services will also depart to Los Cabos and Puerto Vallarta on the same date. Additionally, the low-cost giant already operates the services from LAS to 22 of the TOP US travel markets as per the Department of Transportation.
In addition, the airline will boost the frequencies on different routes from Las Vegas including Burbank, Nashville, Orlando, Kansas City, Reno, Tampa, and New Orleans. The airline is popular as the largest operator at Las Vegas, Harry Reid International Airport, which commands over 40% of all flight operations as per the Bureau of Transportation Statistics. Adam Decaire who is the senior vice president in network planning and network operations control at Southwest, said that:
We are expanding services in the locations where we have had a strong presence to offer customers even more service than ever before in those cities.
In Conclusion!
A new announcement from Southwest Airlines shows that they will be greatly expanding their routes during Summer 2026. The offering includes additional flights on current routes, new routes, and new service offerings on the selected routes. Similarly, new and existing routes will include connection flights to and from sunny destinations in Anchorage and Mexico along with other cities in the lower 48.
Anchorage will be popular with flyers who wish to combine a city and nature vacation. The airline will expand vacation and travel options for the summer travellers. If you prefer to travel with Southwest and wish to travel to its new destinations, contact myflightpolicy at Call Us : +1-877-271-4004 to find better deals and enjoy savings.
Frequently Asked Questions
Yes! Southwest Airlines is supposed to add new destinations, including Alaska, which starts in May 2026. Other new routes for the summer of 2026 include St. Thomas, U.S Virgin Islands, Knoxville, Tennessee (March 2026), and Sint Maarten (April 2026). The airline also announced new routes from cities like Kansas City, Austin, and San Diego for summer 2026.
Southwest Airlines releases flights in smaller chunks about 8 to 10 months in advance, which is a shorter window than many other airlines that release schedules nearly a year ahead. The airline extends its schedule for flight booking for the next release date.
Southwest Airlines is making significant changes in 2025, including new fare bundles, which end its free checked bag policy for most passengers and roll out the assigned seating for journeys starting in 2026.
Yes! Southwest will start assigning seats on flights departing on or after January 27, 2026. This is a change from their previous open seating model and will allow travellers to choose their desired seat at booking for the flights taking off on or after this date.
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