United States · 836 miles (1,346 km)

Houston (IAH) to Greenville (GSP) flights

Air Canada Aeroplan logo
10,000 milesCheapest economy award, one way, with Air Canada Aeroplan

An economy award from Houston (IAH) to Greenville (GSP) starts at 10,000 miles one way with Air Canada Aeroplan on United Airlines, plus taxes and fees from $33.60. Avianca LifeMiles charges the same. One airline flies nonstop from Houston (IAH) to Greenville (GSP): United Airlines. The two airports are 836 miles (1,346 km) apart. United Airlines is in Star Alliance. There are also 18 ways to fly it with one stop, through Atlanta, Nashville and Charlotte and more.

How many miles IAH to GSP 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.

ProgramEconomyTaxes and fees
Air Canada AeroplanOn United Airlines10,000$33.60
Avianca LifeMilesOn United Airlines10,000$30.60
Emirates SkywardsOn United Airlines12,000$5.60–355.60
ANA Mileage ClubOn United Airlines15,000$5.60
Singapore Airlines KrisFlyerOn United Airlines15,000$5.60
Turkish Airlines Miles&SmilesOn United Airlines15,000$5.60–45.60
Thai Royal Orchid PlusOn United Airlines17,500$5.60
EVA Air Infinity MileageLandsOn United Airlines19,500$5.60
TAP Miles&GoOn United Airlines30,000$50.40

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 Pricer

Airlines flying nonstop from IAH to GSP

  • United Airlines logo
    United AirlinesStar Alliance · bookable with 13 programsWho books it

Book IAH to GSP with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

IAH to GSP with one stop

18 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

  • Via Atlanta (ATL)Delta Air Lines the whole way
    Delta Air Lines logo
    United Airlines logo
    Frontier Airlines logo
    Delta Air Lines logo
  • Via Nashville (BNA)United Airlines, then Southwest Airlines
    United Airlines logo
    Southwest Airlines logo
  • Via Charlotte (CLT)American Airlines the whole way
    American Airlines logo
    United Airlines logo
    Frontier Airlines logo
    American Airlines logo
  • Via Dallas (DFW)American Airlines the whole way
    American Airlines logo
    United Airlines logo
    American Airlines logo
  • Via Cincinnati (CVG)United Airlines, then Breeze Airways
    United Airlines logo
    Breeze Airways logo
  • Via Tampa (TPA)United Airlines and Frontier Airlines, then Breeze Airways
    United Airlines logo
    Frontier Airlines logo
    Breeze Airways logo
  • Via Orlando (MCO)United Airlines and Frontier Airlines, then Breeze Airways
    United Airlines logo
    Frontier Airlines logo
    Breeze Airways logo
  • Via Sarasota (SRQ)United Airlines, then Allegiant Air
    United Airlines logo
    Allegiant Air logo
  • Via Columbus (CMH)United Airlines, then Breeze Airways
    United Airlines logo
    Breeze Airways logo
  • Via Fort Myers (RSW)United Airlines, then Breeze Airways
    United Airlines logo
    Breeze Airways logo
  • Via Chicago (ORD)American Airlines and United Airlines the whole way
    American Airlines logo
    United Airlines logo
    Frontier Airlines logo
    American Airlines logo
    United Airlines logo
  • Via Pittsburgh (PIT)United Airlines, then Breeze Airways
    United Airlines logo
    Breeze Airways logo
  • Via Dulles (IAD)United Airlines the whole way
    United Airlines logo
    United Airlines logo
  • Via Detroit (DTW)Delta Air Lines the whole way
    Delta Air Lines logo
    United Airlines logo
    Frontier Airlines logo
    Delta Air Lines logo
  • Via Fort Lauderdale (FLL)United Airlines, Frontier Airlines and 1 more, then Allegiant Air and Breeze Airways
    United Airlines logo
    Frontier Airlines logo
    JetBlue Airways logo
    Allegiant Air logo
    Breeze Airways logo
See all 18 in Routes

IAH to GSP: common questions

How many miles does IAH to GSP cost?

In economy it starts at 10,000 miles one way with Air Canada Aeroplan on United Airlines, plus taxes and fees from $33.60. Next cheapest: Avianca LifeMiles (10,000), Emirates Skywards (12,000) and ANA Mileage Club (15,000). 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 GSP?

United Airlines (Star Alliance) flies nonstop from Houston (IAH) to Greenville (GSP).

How far is Houston from Greenville by plane?

Houston (IAH) and Greenville (GSP) are 836 miles (1,346 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 GSP 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 Greenville?

The most direct connections are through Atlanta (ATL), Nashville (BNA), Charlotte (CLT), Dallas (DFW) and Cincinnati (CVG). On 8 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.