Houston (IAH) to Grand Cayman Island (GCM) flights
An economy award from Houston (IAH) to Grand Cayman Island (GCM) starts at 17,500 miles one way with Avianca LifeMiles on United Airlines, plus taxes and fees from $54. Thai Royal Orchid Plus charges the same. One airline flies nonstop from Houston (IAH) to Grand Cayman Island (GCM): United Airlines. The two airports are 1,145 miles (1,843 km) apart. United Airlines is in Star Alliance. There are also 10 ways to fly it with one stop, through Tampa, Austin and Miami and more.
How many miles IAH to GCM costs
Economy, one way, on the nonstop flights, from the Award Flight Pricer's award charts. Ranges run off-peak to peak; "from" is the floor of a dynamic price.
| Program | Economy | Taxes and fees |
|---|---|---|
| Avianca LifeMilesOn United Airlines | 17,500 | $54 |
| Thai Royal Orchid PlusOn United Airlines | 17,500 | $5.60 |
| Emirates SkywardsOn United Airlines | 18,000 | $5.60–355.60 |
| Singapore Airlines KrisFlyerOn United Airlines | 20,500 | $5.60 |
| ANA Mileage ClubOn United Airlines | 30,000 | $5.60 |
| TAP Miles&GoOn United Airlines | 30,000 | $50.40 |
| Turkish Airlines Miles&SmilesOn United Airlines | 90,000 | $5.60 |
Business and first class prices are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.
Compare every program in the Award Flight PricerAirlines flying nonstop from IAH to GCM
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH to GCM with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAH to GCM with one stop
10 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Tampa (TPA)United Airlines and Frontier Airlines, then Cayman Airways
- Via Austin (AUS)United Airlines, then Cayman Airways
- Via Miami (MIA)American Airlines the whole way
- Via Orlando (MCO)United Airlines and Frontier Airlines, then Southwest Airlines
- Via Dallas (DFW)American Airlines the whole way
- Via Montego Bay (MBJ)United Airlines, then Cayman Airways
- Via Nassau (NAS)United Airlines, then British Airways
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Charlotte (CLT)American Airlines the whole way
- Via Providenciales (PLS)United Airlines, then
IAH to GCM: common questions
How many miles does IAH to GCM cost?
In economy it starts at 17,500 miles one way with Avianca LifeMiles on United Airlines, plus taxes and fees from $54. Next cheapest: Thai Royal Orchid Plus (17,500), Emirates Skywards (18,000) and Singapore Airlines KrisFlyer (20,500). These are award chart prices from the Award Flight Pricer. Programs that price dynamically can cost more on busy dates, so check yours before you transfer points. Business and first class prices are in the pricer too.
Which airlines fly nonstop from IAH to GCM?
United Airlines (Star Alliance) flies nonstop from Houston (IAH) to Grand Cayman Island (GCM).
How far is Houston from Grand Cayman Island by plane?
Houston (IAH) and Grand Cayman Island (GCM) are 1,145 miles (1,843 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAH to GCM award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
Where can I connect between Houston and Grand Cayman Island?
The most direct connections are through Tampa (TPA), Austin (AUS), Miami (MIA), Orlando (MCO) and Dallas (DFW). On 4 of them the same airline flies both flights, for example American Airlines through Miami.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.