Which low cost US airlines include a personal item in the base fare and which ones charge extra just to put a backpack under the seat
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Which low cost US airlines include a personal item in the base fare and which ones charge extra just to put a backpack under the seat
1 real search · 1 real-search pass
2026 US low cost airlines personal item included base fare backpack under seat fees policy Spirit Frontier Allegiant Breeze Avelo SouthwestGoogle ↗
OBSERVED
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Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classifying 1 queries…
Searches and sources
ChatGPT1 real searches · gpt-6
2026 US low cost airlines personal item included base fare backpack under seat fees policy Spirit Frontier Allegiant Breeze Avelo Southwest Google ↗
- SPIRIT AIRLINES CONTRACT OF CARRIAGE 20 · content.spirit.com
- Bag Options · flyfrontier.com
- Carry-On and Checked Baggage Policy, Size & Fees · allegiantair.com
- Avelo Airlines Carry-On Bags Policy · aveloair.com
- Travel Tips · flybreeze.com
- Basic Economy Carry-On Rules (2026) · bagrule.com
- Optional Travel Charges · southwest.com
- Is a Backpack a Personal Item? · going.com