# Distance between Houston, TX (IAH) and Baltimore, MD (BWI)

Flight distance from Houston to Baltimore (Houston George Bush Intercontinental Airport – Baltimore–Washington International Airport) is 1235 miles / 1988 kilometers / 1073 nautical miles. Estimated flight time is 2 hours 50 minutes.

Driving distance from Houston (IAH) to Baltimore (BWI) is 1455 miles / 2341 kilometers and travel time by car is about 25 hours 22 minutes.

## Map of flight path and driving directions from Houston to Baltimore.

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Baltimore–Washington International Airport (BWI).

## How far is Baltimore from Houston?

There are several ways to calculate distances between Houston and Baltimore. Here are two common methods:

Vincenty's formula (applied above)
• 1235.142 miles
• 1987.769 kilometers
• 1073.309 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 1233.914 miles
• 1985.792 kilometers
• 1072.242 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Houston George Bush Intercontinental Airport
City: Houston, TX
Country: United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B Baltimore–Washington International Airport
City: Baltimore, MD
Country: United States
IATA Code: BWI
ICAO Code: KBWI
Coordinates: 39°10′31″N, 76°40′5″W

## Time difference and current local times

The time difference between Houston and Baltimore is 1 hour. Baltimore is 1 hour ahead of Houston.

CDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 163 kg (359 pounds).

## Frequent Flyer Miles Calculator

Houston (IAH) → Baltimore (BWI).

Distance:
1235
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1235

Round trip?