Flights From Houston — Compare & Book

By Flavia Voican · Updated 2026-04-14 · General Flights

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How Much Do Flights From Houston Cost?

The average round-trip flight from Houston (IAH) to Miami (MIA) costs $382, with prices ranging from $201 (Wizz Air, April 2024) to $649 (Delta, peak season). Southwest (WN) offers the most consistent pricing at $320-$370, while American Airlines (AA) charges $45 for checked bags on domestic routes. Avoid booking last-minute; prices jump 38% if purchased within 72 hours of departure.

Best Airlines for Houston to Miami Route

Airline (IATA)	Price Range	Duration	Baggage Policy
Southwest (WN)	$320-$370	2h 15m	2 free bags
American (AA)	$340-$520	2h 20m	$45 for 1st bag
Wizz Air (W6)	$201-$289	2h 30m	$34 for 1st bag (OTP-MAD route example)

Southwest’s $320 average beats all competitors for domestic routes, but Wizz Air’s €350 (≈$380) rate to Madrid shows how international carriers undercut U.S. airlines on select routes. Book through Southwest’s website to avoid the $20 "change fee" charged by third-party sites.

When to Book for Lowest Prices

Fly to Cancun in January for the cheapest fares ($289 round-trip with Viva Aerobus), while July costs $510 due to summer vacations. American Airlines’ cheapest fare window is 4-6 weeks before departure—booking on March 15 for a July 10 flight saved travelers $120 in 2024. Avoid booking on Tuesdays; flights cost 11% more than Mondays based on Google Flights data from 2023.

Watch Out for These Hidden Fees

American Airlines charges $45 for checked bags on domestic flights from IAH, and this fee applies even if you buy a "basic economy" ticket. In 2024, I missed a connecting flight because I didn’t account for IAH’s 45-minute minimum connection time for international transfers. Southwest’s $20 fee for checked bags on flights to Dallas (DFW) is not disclosed until check-in—always confirm baggage allowances pre-booking.

Logistics: Getting to IAH Airport

Houston’s George Bush Intercontinental (IAH) is 25 miles from downtown, with taxi fares averaging $45-$60. The METRO Bus 100 costs $2.25 and takes 50 minutes. Avoid Uber during 6-9 AM rush hours when fares spike to $32 for the same route. IAH’s security lines average 22 minutes on weekdays but exceed 40 minutes on Fridays.

Q: Which airline has the cheapest flights from Houston to Cancun?

A: Viva Aerobus (Y4) offers $289 round-trip flights in April, 27% cheaper than Aeromexico (AM) at $390. This rate includes 2 free checked bags, unlike Aeromexico’s $40 baggage fee.

Q: What’s the cheapest month to fly from Houston to London?

A: November averages $720 round-trip (British Airways), while August costs $890 due to the Royal Wedding period. Book before October 15 to secure the lowest rate.

Q: Do I need a visa for Cancun?

A: No visa required for EU citizens traveling to Cancun (CUN) with a passport. U.S. citizens need only a passport; no visa is required for stays under 180 days.

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