United States to Germany · 5,221 miles (8,402 km)

Houston (IAH) to Frankfurt (FRA) flights

2 airlines fly nonstop from Houston (IAH) to Frankfurt (FRA): Lufthansa and United Airlines. The two airports are 5,221 miles (8,402 km) apart. Lufthansa and United Airlines are in Star Alliance. There are also 43 ways to fly it with one stop, through Toronto, Montreal and Detroit and more.

Airlines flying nonstop from IAH to FRA

  • Lufthansa logo
    LufthansaStar Alliance · bookable with 11 programsWho books it
  • United Airlines logo
    United AirlinesStar Alliance · bookable with 13 programsWho books it

Book IAH to FRA with points

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

IAH to FRA with one stop

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

  • Via Toronto (YYZ)Air Canada the whole way
    Air Canada logo
    United Airlines logo
    Air Canada logo
    Condor logo
    Lufthansa logo
  • Via Montreal (YUL)Air Canada the whole way
    Air Canada logo
    Air Canada logo
    Lufthansa logo
  • Via Detroit (DTW)Delta Air Lines the whole way
    Delta Air Lines logo
    United Airlines logo
    Frontier Airlines logo
    Delta Air Lines logo
    Lufthansa logo
  • Via Amsterdam (AMS)KLM the whole way
    KLM logo
    United Airlines logo
    KLM logo
    Lufthansa logo
    Lufthansa City Airlines logo
  • Via London (LHR)British Airways the whole way
    British Airways logo
    United Airlines logo
    British Airways logo
    Lufthansa logo
    Lufthansa City Airlines logo
  • Via Saint Louis (STL)United Airlines, then Lufthansa
    United Airlines logo
    Lufthansa logo
  • Via Boston (BOS)United Airlines and JetBlue Airways, then Lufthansa and Condor
    United Airlines logo
    JetBlue Airways logo
    Lufthansa logo
    Condor logo
  • Via Chicago (ORD)United Airlines the whole way
    American Airlines logo
    United Airlines logo
    Frontier Airlines logo
    Lufthansa logo
    United Airlines logo
    Condor logo
  • Via New York (EWR)United Airlines the whole way
    United Airlines logo
    Lufthansa logo
    United Airlines logo
  • Via Dulles (IAD)United Airlines the whole way
    United Airlines logo
    Lufthansa logo
    United Airlines logo
  • Via New York (JFK)JetBlue Airways, then Delta Air Lines, Lufthansa and 2 more
    JetBlue Airways logo
    Delta Air Lines logo
    Lufthansa logo
    Singapore Airlines logo
    +1
  • Via Philadelphia (PHL)American Airlines and United Airlines, then Discover Airlines
    American Airlines logo
    United Airlines logo
    Discover Airlines logo
  • Via Atlanta (ATL)Delta Air Lines the whole way
    Delta Air Lines logo
    United Airlines logo
    Frontier Airlines logo
    Delta Air Lines logo
    Lufthansa logo
  • Via Paris (CDG)Air France the whole way
    Air France logo
    Air France logo
    Lufthansa logo
    SriLankan Airlines logo
    +3
  • Via Charlotte (CLT)American Airlines the whole way
    American Airlines logo
    United Airlines logo
    Frontier Airlines logo
    American Airlines logo
See all 43 in Routes

IAH to FRA: common questions

Which airlines fly nonstop from IAH to FRA?

Lufthansa (Star Alliance) and United Airlines (Star Alliance) fly nonstop from Houston (IAH) to Frankfurt (FRA).

How far is Houston from Frankfurt by plane?

Houston (IAH) and Frankfurt (FRA) are 5,221 miles (8,402 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 FRA 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, EVA Air Infinity MileageLands, Lufthansa Miles & More, Singapore Airlines KrisFlyer, TAP Miles&Go 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 FRA 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 FRA with taxes and fees.

Where can I connect between Houston and Frankfurt?

The most direct connections are through Toronto (YYZ), Montreal (YUL), Detroit (DTW), Amsterdam (AMS) and London (LHR). On 17 of them the same airline flies both flights, for example Air Canada through Toronto.

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.