Southwest Airlines Flights 2026: Book Cheap Fares & Save on Select Routes
Searching for Southwest Airlines flights? Compare live fares to 100+ destinations across the U.S., Mexico and the Caribbean, then book a Southwest Airlines flight in minutes with Camli. Find Southwest Airlines cheap flights for your travel dates, view real prices upfront, and access consolidator rates on select routes versus published fares. Ready to book your flight? Search now and lock in today's lowest Southwest fare.
Looking for cheap Southwest Airlines flights? You're not alone. Southwest flies to 100-plus destinations across the U.S., Mexico, Central America and the Caribbean. With a wide network of routes, friendly policies and famous laid-back vibe, it’s an easy choice for holidaymakers and business people alike. Whether it’s a family holiday, a short weekend break or a last-minute trip, it’s all about finding the best price. That's where we come in. Compare Southwest Airlines tickets, view your options side by side and find competitive fares for the dates you actually want — all in one place, without jumping between tabs. On select routes, travelers may find fares well below published prices. From popular domestic routes to nearby international destinations, it's easy to find deals and book cheap Southwest flights with confidence.
Why Book Southwest Airlines with Camli?
As an IATA-accredited consolidator, we make booking simpler and easier on your wallet. Line up live fares side by side, track down Southwest Airlines cheap flights for the dates you want, and book a Southwest Airlines flight in just minutes — safely, with real-time pricing and zero hidden fees. The price on your screen is the price you pay, and on select routes the savings can be significant.
Southwest Airlines Cabin Classes
| Cabin | Seat | Features | Best For |
|---|---|---|---|
| Basic | 31-33" seat pitch | Seat assigned at check-in; Non-transferable flight credit (6-month expiry); No change fees — fare difference applies; Free carry-on and personal item | Budget travelers who want the lowest fare |
| Choice | 31-33" seat pitch | Standard seat selection at booking; Transferable flight credit (12-month expiry, Rapid Rewards members); Same-day standby; Earn more Rapid Rewards points | Travelers wanting seat selection and flexible credits |
| Choice Preferred | 31-33" seat pitch | Preferred seat selection at booking (closer to front); Transferable flight credit (12-month expiry); Same-day standby; Priority boarding | Travelers wanting a better seat position and priority boarding |
| Choice Extra | 31-33" seat pitch (Extra Legroom seats available) | Extra Legroom seat selection at booking; Group 1-2 boarding; Transferable flight credit (12-month expiry); Same-day standby | Travelers wanting extra legroom and earliest boarding |
Popular Southwest Airlines Routes
Below are live fares on the most popular Southwest Airlines flights from the U.S. Prices update in real time and show round-trip Economy fares — so on select routes, you can spot cheap Southwest flights and find fares well below published prices.
| Route | Example Fare | Published Fare |
|---|---|---|
| Dallas (DAL) → Chicago (MDW) | $99 | $220 |
| Baltimore (BWI) → Orlando (MCO) | $79 | $180 |
| Denver (DEN) → Las Vegas (LAS) | $59 | $140 |
| Oakland (OAK) → Honolulu (HNL) | $199 | $420 |
| Phoenix (PHX) → Seattle (SEA) | $89 | $200 |
| Chicago (MDW) → Fort Lauderdale (FLL) | $89 | $190 |
Example fares shown are static examples and may not reflect live availability. Potential savings vary by route, date, fare class, and availability. Search for current fares.
Southwest Airlines Baggage Allowance
Southwest Airlines ended its famous 'Bags Fly Free' policy on May 28, 2025. As of April 2026, the first checked bag costs $45 and the second costs $55 on domestic flights. Each passenger still gets a free carry-on bag plus a personal item. Overweight bags (51–100 lbs) cost $100, oversized bags (63–80 linear inches) cost $200, and additional bags beyond the second are $75 each. A-List Preferred members receive 2 free checked bags, Rapid Rewards Priority credit cardholders get 2 free bags (extends to up to 8 companions on the same reservation), and active-duty military receive free checked bags.
| Cabin | Carry-On | Checked Bags | Weight |
|---|---|---|---|
| All Fare Types | 1 carry-on + 1 personal item | $45 first / $55 second | 23 kg (50 lbs) each |
| A-List Preferred / Credit Card | 1 carry-on + 1 personal item | 2 bags FREE | 23 kg (50 lbs) each |
| Overweight Bag | N/A | $100 per bag | 23-45 kg (51-100 lbs) |
| Oversize Bag | N/A | $200 per bag | Over 62 linear inches |
| Additional Bags (3+) | N/A | $75 per bag | 23 kg (50 lbs) |
Southwest Airlines Check-In Guide
Getting checked in for your Southwest flight is fast and easy to fit around your day. You can start 24 hours ahead of takeoff using the Southwest app or website — pick or confirm your seat, tack on any bags, and save your boarding pass straight to your phone. Rather sort it at the airport? Self-service kiosks and staffed counters are there for you, just keep in mind that cutoff times differ from one airport to the next. And if you booked with Camli, it makes no difference at all — you'll check in exactly as you would booking direct, and can look up your Southwest Airlines flight status any time before you fly.
Opens: 24 hours before | Methods: Web, App, Kiosk | Boarding Pass: Mobile & Print
- Visit southwest.com or open the Southwest app exactly 24 hours before departure
- Enter confirmation number or Rapid Rewards number
- Check in immediately for the best boarding position
- Boarding position (A/B/C + number) assigned at check-in
- No seat assignment — choose any open seat when boarding
- Save mobile boarding pass or print at kiosk
Tips to Save on Southwest Airlines
- Book 1-3 months ahead for the best Southwest fare availability — they run frequent sales.
- Fly Tuesday-Wednesday for the lowest demand pricing on Southwest routes.
- Factor in Southwest's bag fees ($45/$55) when comparing total trip costs with other carriers.
- Use Southwest’s Low Fare Calendar to find the cheapest dates for your route.
- Earn the Companion Pass (110,000 points/year) for a free companion on every flight.
- Check connecting routes through Denver or Las Vegas — sometimes cheaper than direct flights.
Frequently Asked Questions
- Is it cheaper to book Southwest flights through a travel agent?
- Yes. Camli has access to special fares and discounts not always available through common flight booking platforms.
- What are Southwest Airlines' largest hubs?
- Southwest's largest airports include Dallas Love Field (DAL), Denver (DEN), Chicago Midway (MDW), Las Vegas (LAS), Phoenix (PHX), and Baltimore (BWI).
- Does Southwest charge change fees?
- No. Southwest does not charge airline change fees, though fare differences may apply.
- How far in advance should I book Southwest flights?
- Booking 1–3 months before departure usually offers the best fares for domestic travel.
- Does Southwest still offer free checked bags?
- No. Southwest ended free checked bags on May 28, 2025. Standard fares now cost $45 for the first bag and $55 for the second (as of April 2026). A-List Preferred members and Rapid Rewards credit cardholders still receive free bags.
- Where can I find the best Southwest flight deals?
- Check seasonal sales, flexible-date searches, and consolidator agencies like Camli for discounted Southwest fares.