Airline bag fee helper
Will I Pay Bag Fees?
Quick answer: legacy US Main cabin fares often include a free carry-on; Spirit, Frontier, and Ryanair Basic usually charge for a full carry-on (personal item under the seat is typically free if it fits).
Pick an airline, fare bucket, and the bags you plan to bring — get a clear fit + fee verdict for personal item, carry-on, and checked bags. Static allowances as of 2026-09; not a live airline API. Screenshot-ready before you book.
How it works
- Pick an airline and fare bucket. Choose the carrier and whether you are on a basic/ULCC fare or a standard Main cabin-style fare.
- Select the bags you plan to bring. Toggle personal item, carry-on, and checked, then optionally enter sizes or use presets.
- Get fit + fee verdicts. See free vs paid estimates and whether each bag is likely to fit the published sizer.
- Verify at booking. Treat ranges as dated ballparks, then confirm on the airline site before you fly.
Bag fees travelers ask about
Will I pay for a carry-on bag on Spirit, Frontier, or Ryanair?▾
On ultra-low-cost carriers like Spirit, Frontier, and Ryanair Basic, a full carry-on is usually paid on basic fares — a personal item under the seat is typically free if it fits their sizer. Legacy US Main cabin fares (Delta, United, American, JetBlue, Alaska) often include a free standard-size carry-on. Always verify your fare rules.
How do I know if my bag will fit?▾
Compare each exterior dimension (length, width, height) including wheels and handles to the airline maximum. This helper uses each-dimension ≤ max logic, which matches most airline sizers. Soft bags can compress; hard-shell bags usually cannot.
Should I buy the bag online or at the airport?▾
Online / during booking is almost always cheaper on ULCCs. Gate and airport counter prices for carry-on or checked bags can jump sharply.
Does Southwest still include free checked bags?▾
Southwest has historically included two free checked bags plus a carry-on and personal item. Policies can change — treat bags-included messaging as a marketing note and confirm for your itinerary before you fly.
Are these bag fees exact?▾
Fee ranges and size limits are approximate public ballparks as of September 2026. Airlines change policies, fare rules, and dimensions often — especially ultra-low-cost carriers. Always verify at booking. ForecastStyle does not sell tickets and is not affiliated with these airlines.
How does this relate to how many outfits I pack?▾
Bag fees push you toward personal-item or carry-on only. Use the packing calculator to see whether your outfit counts fit that smaller bag — the result card links over with optional trip nights.