Southwest Airlines Flights: Compare & Book Cheap Fares
Searching for Southwest Airlines flights? Compare fares to 100+ destinations across the U.S., Mexico and the Caribbean, then book in minutes with Camli. View real prices upfront and find the best Southwest fare for your dates.
Camli is an independent IATA-accredited travel agency. We are not affiliated with or endorsed by Southwest Airlines. Looking for cheap Southwest Airlines flights? 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. Compare Southwest Airlines tickets, view your options side by side and find competitive fares for the dates you actually want — all in one place. 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 travel agency with access to consolidator fares, 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 booking; Non-changeable (cancel for non-transferable credit, 6-month expiry, or upgrade to a changeable fare); Free carry-on and personal item | Budget travelers who want the lowest fare |
| Choice | 31-33" seat pitch | Standard seat selection at booking; Changeable — no change fee, fare difference applies; Transferable flight credit (12-month expiry, Rapid Rewards members); Same-day standby | Travelers wanting seat selection and flexible credits |
| Choice Preferred | 31-33" seat pitch | Preferred seat selection at booking (closer to front); Changeable — no change fee, fare difference applies; 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 boarding; Changeable — no change fee, fare difference applies; 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 cost $100 (51–70 lbs) or $200 (71–100 lbs), oversized bags (63–80 linear inches) cost $200, and additional bags beyond the second are $150 each. A-List Preferred members receive 2 free checked bags, regular A-List members and Rapid Rewards co-branded credit cardholders get 1 free checked bag, 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 | 1 carry-on + 1 personal item | 2 bags FREE | 23 kg (50 lbs) each |
| A-List / Co-branded Credit Card | 1 carry-on + 1 personal item | 1 bag FREE | 23 kg (50 lbs) |
| Overweight Bag (51-70 lbs) | N/A | $100 per bag | 23-32 kg (51-70 lbs) |
| Overweight Bag (71-100 lbs) | N/A | $200 per bag | 32-45 kg (71-100 lbs) |
| Oversize Bag | N/A | $200 per bag | Over 62 linear inches |
| Additional Bags (3+) | N/A | $150 per bag | 23 kg (50 lbs) |
Southwest Airlines Check-In Guide
Getting checked in for your Southwest flight is fast and easy. You can start 24 hours ahead of takeoff using the Southwest app or website — confirm your assigned 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.
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
- Confirm your assigned seat or select a different available seat
- Boarding group (1-8) determines boarding order
- 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 (135,000 qualifying points or 100 one-way flights per 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.