Southwest Airlines New Routes 2026: Everything You Need to Know
Big news for budget travelers! Southwest Airlines is going through one of its biggest network expansions in years — and if you know where to look, there are some incredible flight deals waiting for you.
Here’s everything you need to know about Southwest Airlines’ new routes in 2026, including the best new destinations and how to grab the cheapest fares.
Why Southwest's 2026 Expansion Is a Big Deal
Southwest Airlines has always been the go-to airline for budget US travelers — no baggage fees, flexible cancellation, and consistently low fares. And in 2026, they are going even bigger.
The expansion comes at the perfect time. With Spirit Airlines scaling back operations, Southwest has stepped in to fill the gap — adding new routes, increasing flight frequencies, and even launching international connections that have never existed before.
The result? More options, more competition, and potentially lower fares for travelers like you.
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All the New Southwest Routes in 2026
New Routes from Las Vegas (LAS)
Las Vegas is one of Southwest’s biggest hubs, and they are going all-in on expansion here.
Brand new international route:
- Las Vegas → San Jose, Costa Rica — Southwest’s first ever international redeye flight! Daily service, making this one of the most exciting new routes of 2026.
New domestic connections from Las Vegas:
- Austin, Texas
- Burbank, California
- Denver, Colorado
- Indianapolis, Indiana
- Kansas City, Missouri
- Los Angeles, California
- Nashville, Tennessee
- New Orleans, Louisiana
- Oakland, California
- Orange County, California
- Phoenix, Arizona
- Reno, Nevada
- San Francisco, California
- Tampa, Florida
New Routes from Orlando (MCO)
Orlando is Southwest’s other major expansion hub in 2026, with the airline projecting over 200 daily departures from Orlando International by 2027.
New connections from Orlando:
- Albuquerque, New Mexico
- Austin, Texas
- Baltimore, Maryland
- Buffalo, New York
- Kansas City, Missouri
- Louisville, Kentucky
- Memphis, Tennessee
- Milwaukee, Wisconsin
- Nashville, Tennessee
- New Orleans, Louisiana
- Oklahoma City, Oklahoma
- Philadelphia, Pennsylvania
- Pittsburgh, Pennsylvania
- Rochester, New York
- San Antonio, Texas
- San Juan, Puerto Rico — a fan favorite returning to the schedule!
New Routes from Austin (AUS)
Austin is becoming one of Southwest’s fastest-growing markets.
New connections from Austin:
- Memphis, Tennessee — new year-round service
- Santa Rosa, California — Saturday seasonal service
- Knoxville, Tennessee — Saturday seasonal service
New Routes from Nashville (BNA)
Nashville continues to grow as a major Southwest hub.
New connections from Nashville:
- Reno, Nevada
- Burbank, California
- Liberia, Costa Rica — Nashville’s first direct international route to Costa Rica!
New Pacific Corridor Routes (Starting August 4, 2026)
Southwest is doubling down on Pacific connectivity with exciting new routes:
- Burbank (BUR) → Honolulu (HNL) — Daily nonstop flights linking the Los Angeles area directly to Hawaii
9 Brand New Routes Just Announced
Southwest just announced 9 additional new and returning routes as part of their continued June 2026 expansion. These cover underserved markets across the US, giving travelers new direct options that never existed before.
Best New Routes for Budget Travelers
Here are the top picks from Southwest’s 2026 expansion:
Best for beach lovers: Las Vegas → San Jose, Costa Rica — daily redeye makes it easy to wake up in paradise
Best for East Coast travelers: Orlando → Philadelphia / Pittsburgh / Buffalo — affordable new connections
Best for Hawaii: Burbank → Honolulu — finally a direct option from the LA area
Best for international travel from the South: Nashville → Liberia, Costa Rica — a first-ever direct connection
How to Get the Best Deals on Southwest’s New Routes
New routes almost always launch with promotional fares — here’s how to grab the best prices:
1. Sign up for Southwest’s email alerts New route announcements often come with launch sales. Being on the email list means you hear first.
2. Be flexible with travel dates Tuesday and Wednesday flights are almost always cheaper than weekend flights on Southwest.
3. Book early for new routes New routes tend to fill up fast. If you see a good fare, book it.
4. Use Southwest Rapid Rewards points New routes are a great time to redeem points — especially for international routes like Las Vegas to Costa Rica.
5. Check Google Flights for price tracking Set up price alerts on Google Flights for your target route and get notified when fares drop.
What This Means for Budget Travelers
Southwest’s 2026 expansion is great news for budget travelers across the United States. More routes means more competition, which generally pushes fares down — even on other airlines.
The Las Vegas to Costa Rica redeye is particularly exciting. Costa Rica has become one of the most popular destinations for US travelers looking for affordable adventure, beautiful beaches, and incredible wildlife. A direct flight from Las Vegas opens this destination up to millions of new travelers at budget-friendly prices.
Final Thoughts
Southwest’s 2026 expansion is one of the most exciting developments in US aviation this year. With new international routes, expanded domestic connections, and continued low fares, this is a great time to be a budget traveler.
Key highlights:
- Las Vegas → Costa Rica — first international redeye
- Nashville → Costa Rica — brand new international connection
- Burbank → Honolulu — new Hawaii option from LA area
- Orlando expansion — 15+ new connections including San Juan
Keep an eye on Southwest’s website and sign up for their email list — more route announcements are expected soon!
Have you booked any of these new Southwest routes? Share your experience in the comments below!
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