Houston (IAH) to Saint Thomas (STT) flights
One airline flies nonstop from Houston (IAH) to Saint Thomas (STT): United Airlines. The two airports are 2,069 miles (3,329 km) apart. United Airlines is in Star Alliance. There are also 17 ways to fly it with one stop, through Miami, San Juan and Tampa and more.
Airlines flying nonstop from IAH to STT
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH to STT 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 STT with one stop
17 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Miami (MIA)American Airlines the whole way
- Via San Juan (SJU)United Airlines and Frontier Airlines, then Cape Air and JetBlue Airways
- Via Tampa (TPA)United Airlines and Frontier Airlines, then Breeze Airways
- Via Orlando (MCO)United Airlines and Frontier Airlines, then Southwest Airlines
- Via Santo Domingo (SDQ)United Airlines, then Sky High Aviation ServicesDO
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Charlotte (CLT)American Airlines the whole way
- Via Dallas (DFW)American Airlines the whole way
- Via Nashville (BNA)United Airlines, then Southwest Airlines
- Via Dulles (IAD)United Airlines the whole way
- Via Baltimore (BWI)United Airlines and Frontier Airlines, then Southwest Airlines
- Via Philadelphia (PHL)American Airlines the whole way
- Via New York (EWR)United Airlines the whole way
- Via New York (JFK)JetBlue Airways, then American Airlines and Delta Air Lines
- Via Chicago (ORD)American Airlines and United Airlines the whole way
IAH to STT: common questions
Which airlines fly nonstop from IAH to STT?
United Airlines (Star Alliance) flies nonstop from Houston (IAH) to Saint Thomas (STT).
How far is Houston from Saint Thomas by plane?
Houston (IAH) and Saint Thomas (STT) are 2,069 miles (3,329 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 STT 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.
How many miles does IAH to STT cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IAH to STT with taxes and fees.
Where can I connect between Houston and Saint Thomas?
The most direct connections are through Miami (MIA), San Juan (SJU), Tampa (TPA), Orlando (MCO) and Santo Domingo (SDQ). On 9 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.