Booking tips: fares, fees and budget airlines
When to book and fly for less, what bag and seat fees add, and how the US budget airlines compare, with dated prices.
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Cheapest Day to Fly (and to Book) in 2026: Day-by-Day Data, Not Myths
Midweek departures are usually cheapest, but the 2026 datasets from Google Flights, Kayak and Expedia disagree on international trips and on Friday. In the 2026 data, the day you book is worth 1.4–3%. Seven datasets side by side, with their dates and samples.
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US Budget Airlines in 2026: Frontier, Allegiant, Avelo and Breeze Compared After Spirit (Fees Table)
Spirit stopped flying on 2 May 2026 and Allegiant has owned Sun Country since 13 May 2026. The US budget airlines left are Frontier, Allegiant (with Sun Country), Avelo and Breeze. Bag fees by purchase stage, three real fare totals against Delta and United basic economy, and DOT reliability data for August 2026.
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Your airline’s own rules are in Airlines A–Z.