Cheap flights from Houston to Key Largo, FL
HOU — MIA
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston to Key Largo are usually found in February or January, booked 21 days in advance, depart on a Monday or Wednesday and return on a Tuesday
Find flight deals from Houston to Key Largo
Keep the following information in mind while searching for Houston to Key Largo flight deals. Data was last updated November 4, 2026.
Popular in | June |
|---|---|
Cheapest in | February |
Average price | $229 |
Cheapflights Insights
Everything you need to know about your flight from Houston to Key Largo
What is the cheapest time of day to fly from HOU to KE9?
Find hourly flight availability from Houston to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2026.
It’s optimal to fly from Houston to Key Largo in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from Houston to Key Largo?
Use this chart to determine the cheapest time to fly round-trip from Houston to Key Largo. Price data was last updated on October 31, 2026.
Travelers seeking maximum savings on their Houston to Key Largo flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Key Largo
Get insights into the airlines that provide service to Key Largo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key Largo. Reviews last updated November 4, 2026.
See what other customers who have flown with Southwest,United Airlines, andJetBlue from Houston to Key Largo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Houston to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Houston and Key Largo flights
Browse other Houston and Key Largo flight options. Last updated on November 4, 2026.
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Houston to Key Largo flights
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Top 6 airlines flying from Houston to Key Largo
Discover the top 6 airlines that operate flights from Houston to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$188 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$72 | Average$275 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$150 | Average$350 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$169 | Average$343 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$169 | Average$391 | FlexibilityNo cancel fee | On-time71% |