George Bush Intercontinental Airport
Houston, United StatesIAH / KIAH
International hub · 159 direct destinations · 5 runways · longest runway 12,001 ft
71 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Houston → Baltimore
IAH
HoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental AirportBWIBaltimoreBaltimore/Washington International Thurgood Marshall Airport
BaltimoreBaltimore/Washington International Thurgood Marshall Airport- Distance
- 1,234 mi
- Estimated flight time
- ~3h
Baltimore is currently 1 hour ahead of Houston.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 4 flights a day, observed from October 2025 to September 2026.
- 4
- flights per day
- 5
- busiest month · Oct
- 4
- quietest month · Dec
- 2 hr 35 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 4Jan2026
- 5Feb
- 4Mar
- 4Apr
- 4May
- 4Jun
- 4Jul
- 4Aug
- 4Sep
- 5Oct2025
- 5Nov
- 4Dec
Airlines
Who flies it
United Airlinesall year
Air Transport Internationalall year
Spirit Airlineswinter
Frontier Airlinesall year
Mesa Airlinesautumn
Through the day
Departure times
Local time in Houston. Most departures between 04:00 and 07:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 4.2Mon
- 3.8Tue
- 4Wed
- 4.3Thu
- 4.6Fri
- 3.6Sat
- 4Sun
Fleet
Aircraft observed
- Boeing 767-300B76322%
- Boeing 737-900B73916%
- Boeing 737-800B73810%
- Airbus A321neoA21N8%
- Airbus A320A3207%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 4 | 110 |
|
| February 2026 | 5 | 129 |
|
| March 2026 | 4 | 126 |
|
| April 2026 | 4 | 127 |
|
| May 2026 | 4 | 120 |
|
| June 2026 | 4 | 122 |
|
| July 2026 | 4 | 129 |
|
| August 2026 | 4 | 112 |
|
| September 2026 | 4 | 114 |
|
| October 2025 | 5 | 138 |
|
| November 2025 | 5 | 144 |
|
| December 2025 | 4 | 99 |
|
Airlines observed on this route
From observed callsign routes on IAH-BWI - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Houston: 159.
- Direct destinations observed from Baltimore: 104.
The airports on this route
Baltimore/Washington International Thurgood Marshall Airport
Baltimore, United StatesBWI / KBWI
Major airport · 104 direct destinations · 3 runways · longest runway 10,502 ft
66 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
HOU BWIWilliam P. Hobby AirportHouston is about 24 mi from Houston.View route →IAH DCARonald Reagan Washington National AirportWashington is about 30 mi from Baltimore.View route →IAH IADWashington Dulles International AirportDulles is about 45 mi from Baltimore.View route →IAH PHLPhiladelphia International AirportPhiladelphia is about 90 mi from Baltimore.View route →
About the route from Houston to Baltimore
The observed direct connection between George Bush Intercontinental Airport (IAH) and Baltimore/Washington International Thurgood Marshall Airport (BWI) covers approximately 1,234 mi. The estimated flight time is around 3h. Air Transport International, Frontier Airlines, Mesa Airlines, Spirit Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Houston from Baltimore by air?
- The great-circle distance between George Bush Intercontinental Airport and Baltimore/Washington International Thurgood Marshall Airport is approximately 1,234 mi.
- How long is the flight from Houston to Baltimore?
- Based on the distance, the estimated flight time is about 3h. This is an estimate, not a schedule.
- Is there a direct connection from Houston to Baltimore?
- Yes, a direct connection between IAH and BWI has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Air Transport International, Frontier Airlines, Mesa Airlines, Spirit Airlines and United Airlines.
- How often is there a flight from Houston to Baltimore?
- On average around 4 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,470 observed flights. Mainly United Airlines, Air Transport International, Spirit Airlines. That is an observation, not a timetable.
- What is the current time difference between Houston and Baltimore?
- Baltimore is currently 1 hour ahead of Houston.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.