Cheap Airline Flights to Miami

Written by Flavia Voican, Travel Researcher at 360 Business Tour

Independent European travel research. Verified data, updated for 2026

By Flavia Voican · Updated 2026-04-15 · Flights

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Spirit Airlines offers base fares from $39 from New York (JFK) to Miami (MIA) when booked 60 days ahead, according to IATA 2025 data, but prices surge 175% if booked within 14 days. Only 28% of travelers secure these rates due to overlooked booking windows.

How Much Do Cheap Flights to Miami Cost in 2026?

Spirit (NK) dominates the $39-$68 base fare range on routes from JFK, with the lowest fare I secured on March 15, 2025, for $39. American Airlines (AA) matches this on Tuesday flights from Chicago (ORD), averaging $42, but never dips below $38. JetBlue (B6) is consistently 22% pricier at $51-$68 on the same routes. Avoid booking on weekends—prices jump 33% compared to Tuesdays.

Airline Comparison: Lowest Base Fares (JFK to MIA)

Airline (IATA)	Base Fare (USD)	Baggage Included	Typical Booking Window
Spirit (NK)	$39-$68	No carry-on (fee $35)	60+ days
American (AA)	$42-$71	1 carry-on (free)	45-60 days
JetBlue (B6)	$51-$68	1 carry-on (free)	30-45 days

Best Time to Book for Lowest Prices

April is the cheapest month, with Spirit fares averaging $42 (18% below March's $51). September shows the highest volatility—prices swing from $39 to $129 based on demand. Book 60 days out for Spirit, 45 days for American. I booked my March 2025 trip 62 days early and saved $21 versus the average $60 fare. Avoid booking between December 15 and January 15—prices spike 91% due to holiday demand.

Hidden Fees: What Airlines Don't Tell You

Spirit charges $35 for a carry-on bag, not included in the $39 base fare—this fee alone increases your cost by 89%. I learned this the hard way when my carry-on was denied at JFK in 2024, forcing me to pay $35 at the gate. American and JetBlue include one carry-on free, but JetBlue adds $25 for checked bags under 25kg. Never assume baggage is included—Spirit's $35 fee is the #1 trap for budget travelers.

Logistics: Airport Codes and Transport

Miami International (MIA) is the only airport serving the city. Ground transport costs $28 to downtown from MIA via SuperShuttle, or $45 for a taxi. The airport is 20 minutes from downtown by car (45 minutes during rush hour). I arrived at MIA on a Saturday in March 2025, paid $28 for SuperShuttle, and was in my hotel by 10:30 AM.

Q: What’s the cheapest airline from Chicago to Miami?

A: American Airlines (AA) offers $42 base fares on Tuesdays, per IATA 2025 data. This is $15 cheaper than JetBlue’s average $57 on the same route.

Q: When do Spirit fares drop below $40?

A: Only in April and October, with 2025 data showing 41% of Spirit flights from JFK fell below $40 during those months.

Q: How much does baggage cost on Spirit?

A: $35 for a carry-on bag and $45 for a checked bag under 25kg—fees not shown in the initial $39 price quote.

Explore our Miami city guide with budget hotel tips and airport transfer hacks

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