Houston (IAH) to Baltimore (BWI) flights
2 airlines fly nonstop from Houston (IAH) to Baltimore (BWI): Frontier Airlines and United Airlines. The two airports are 1,234 miles (1,986 km) apart. United Airlines is in Star Alliance. There are also 48 ways to fly it with one stop, through Knoxville, Nashville and Birmingham and more.
Airlines flying nonstop from IAH to BWI
- Frontier AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH to BWI 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 BWI with one stop
48 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Knoxville (TYS)United Airlines, then Southwest Airlines
- Via Nashville (BNA)United Airlines, then Southwest Airlines and American Airlines
- Via Birmingham (BHM)United Airlines, then Southwest Airlines
- Via Memphis (MEM)United Airlines, then Southwest Airlines
- Via Greenville (GSP)United Airlines, then Southwest Airlines
- Via Atlanta (ATL)Delta Air Lines and Frontier Airlines the whole way
- Via Charlotte (CLT)American Airlines and Frontier Airlines the whole way
- Via Richmond (RIC)United Airlines, then Southwest Airlines
- Via Louisville (SDF)United Airlines, then Southwest Airlines
- Via Raleigh/Durham (RDU)United Airlines and Frontier Airlines, then Southwest Airlines
- Via Cincinnati (CVG)United Airlines, then Southwest Airlines
- Via New Orleans (MSY)United Airlines, then Southwest Airlines
- Via Columbus (CMH)United Airlines, then Southwest Airlines
- Via Pittsburgh (PIT)United Airlines, then Southwest Airlines
- Via Indianapolis (IND)United Airlines, then Southwest Airlines
IAH to BWI: common questions
Which airlines fly nonstop from IAH to BWI?
Frontier Airlines and United Airlines (Star Alliance) fly nonstop from Houston (IAH) to Baltimore (BWI).
How far is Houston from Baltimore by plane?
Houston (IAH) and Baltimore (BWI) are 1,234 miles (1,986 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 BWI 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 BWI 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 BWI with taxes and fees.
Where can I connect between Houston and Baltimore?
The most direct connections are through Knoxville (TYS), Nashville (BNA), Birmingham (BHM), Memphis (MEM) and Greenville (GSP). On 12 of them the same airline flies both flights, for example Delta Air Lines through Atlanta.
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.