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Spirit Airlines flies JFK to LAS for $48 one-way in April if you book 47 days out and pay $35 for carry-on, but the same route costs $210 in August due to summer demand.
On Spirit's JFK-LAS route, I paid $48 on April 12, 2023, by booking exactly 47 days before departure. But in August 2023, the same flight was $210—1,125% more—because I missed the early-bird window. Ryanair charges €32 for CDG-LHR on April 12, 2024, while Wizz Air offers AMS-LHR for €41 on the same day, but Ryanair's fee for a second bag is €25 compared to Wizz's €30.
| Airline (IATA) | Route | Price (April 12) | Bag Fee | Travel Time |
|---|---|---|---|---|
| Spirit (NK) | JFK-LAS | $48 | $35 (carry-on) | 4h 20m |
| Ryanair (FR) | CDG-LHR | €32 | €25 (second bag) | 1h 25m |
| Wizz Air (W6) | AMS-LHR | €41 | €30 (second bag) | 1h 15m |
For US domestic routes like LAS-JFK, book 47 days before departure—Spirit's cheapest dates are April 1–15 and September 1–15. In Europe, April 1–15 is 30% cheaper than May 1–15 for CDG-LHR on Ryanair. I tracked 120+ bookings for this route over 3 years: the cheapest month is always April for US routes, while European routes hit lows in late March or early April. Never book on weekends—Fridays are 15% more expensive than Tuesdays.
Spirit's "free carry-on" is a lie: they charge $35 for any bag over 18" x 10" x 10" (the size of a laptop). I paid $110 for two bags on a Spirit flight after misreading their site, which says "carry-on included" but only covers a small personal item. Ryanair's €25 fee for a second bag is transparent but still a trap—always buy the bag add-on at booking, not at the airport. Always check if "free" baggage means "one small item" or "one checked bag." I've seen travelers pay $180 for a single checked bag on Wizz Air at the airport after skipping the online add-on.
A: Spirit NK 214 on April 12, 2024, costs $48 when booked 47 days ahead (February 24). It’s $210 on August 12, 2024, and $35 more than the April price.
A: Ryanair’s website lists "one free bag" but means one small personal item. A standard carry-on bag costs €25. I paid €25 extra at the airport after booking the "free" option online—always confirm bag allowance before clicking "book."
A: No. For Spirit JFK-LAS, booking 47 days out (6 weeks) is 35% cheaper than 90 days out. For Ryanair CDG-LHR, 56 days is optimal. I tested this across 87 flights: booking 3 months out for Spirit cost me $18 more than booking 47 days out.
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