Southwest Airlines (WN) — Complete Travel Guide
Everything you need to know about flying with Southwest Airlines: baggage policy, carry-on rules, online check-in, cancellation policy, seat selection, and expert tips to save money. This guide is updated regularly to reflect the latest Southwest Airlines policies.
Quick Facts About Southwest Airlines
- IATA Code: WN
- Carry-On: 24x16x10 inches (61x41x25 cm), no weight limit
- First Checked Bag: $45 domestic (increased April 2026)
- Check-In Opens: 24 hours before scheduled departure
- Last Updated: May 2026
Southwest Airlines Travel Guides
Explore our detailed guides for Southwest Airlines:
- Southwest Airlines Baggage Policy — Checked bag fees, weight limits, oversized items, and tips to avoid fees.
- Southwest Airlines Carry-On Rules — Carry-on dimensions (24x16x10 in), personal item size, and enforcement.
- Southwest Airlines Online Check-In — Check-in opens 24 hours before scheduled departure, mobile app, boarding pass options.
- Southwest Airlines Cancellation Policy — 24-hour rule, refund eligibility, change fees, and credit options.
- Southwest Airlines Seat Selection — Free vs paid seats, upgrade options, and best seat tips.
- Southwest Airlines Unaccompanied Minor Policy — Age requirements, fees, escort rules, and safety procedures.
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