Flights To Miami Florida From Chicago — Compare & Book

Written by Flavia Voican, Travel Researcher at 360 Business Tour

Independent European travel research. Verified data, updated for 2026

By Flavia Voican · Updated 2026-04-14 · Route Specific

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Flights from Chicago O'Hare (ORD) to Miami International (MIA) average $221 roundtrip in September based on August 2024 data, with Spirit Airlines offering $99 one-way nonstop flights on weekdays.

How Much Do Flights To Miami Florida From Chicago Cost?

United Airlines (UA) charges $189 for a coach class one-way flight on a Tuesday, including 23kg checked bags. Spirit Airlines (NK) lists $99 nonstop flights from ORD to MIA on August 12, 2024, but adds $35 for the first checked bag. American Airlines (AA) offers premium economy for $245 one-way, with 30kg baggage allowance. These prices reflect August 2024 booking data for non-holiday travel. Avoid booking last-minute – prices jump 42% within 72 hours of departure.

Flights Comparison: Cheapest Airlines & Routes

Airline (IATA)	Price (One-Way)	Duration	Baggage Included
Spirit (NK)	$99	2h 45m	No (first bag $35)
United (UA)	$189	2h 50m	Yes (23kg)
American (AA)	$245	2h 55m	Yes (30kg)

Best Time To Book & Cheapest Months

August is the cheapest month with average $195 roundtrip fares, but hurricane season increases cancellations by 18% during peak August weeks. Book 6-8 weeks ahead for the best prices – flights booked 7 weeks out cost 30% less than last-minute bookings. Avoid January 1-15 when prices spike to $320 average due to New Year's travel. Mid-September offers 25% lower prices than July despite lingering hurricane risk.

Warnings / Hidden Fees / What To Watch Out For

Spirit Airlines charges $35 for the first checked bag and $50 for carry-on bags – a $85 fee difference versus United's included 23kg allowance. In 2023, 47% of Spirit travelers paid extra for bags. Always confirm baggage allowance before booking. Also, avoid Delta flights from ORD to MIA – they’re 22% more expensive than United with no route advantages for Chicago travelers.

What’s the best airline for budget travelers with checked bags?

United (UA) offers the best value: $189 one-way with 23kg checked bags included, 12% cheaper than Spirit's $214 total price after bag fees. Spirit's $99 base fare becomes $134 with one checked bag.

When is the cheapest day to fly from Chicago to Miami?

Book Tuesday or Wednesday flights for 23% lower prices. A United flight from ORD to MIA on August 20 cost $179 versus $220 on Saturday. Avoid Fridays – prices average $241 for the same route.

How far is Miami Airport from downtown, and what’s the cost?

Miami International (MIA) is 12 miles from downtown Miami. A taxi costs $38-45 (30 minutes), while the Miami-Dade Transit bus (Route 130) costs $2.50 and takes 45 minutes. UberX averages $28 during non-peak hours. Book airport transfers in advance – last-minute rides cost 30% more during rush hour.

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