Baltimore (BWI) to Houston (IAH)
Flight time
≈ 3h 16m
Bearing
245° SW
Baltimore (BWI) to Houston (IAH) is 1,234 miles (1,986 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BWI–IAH
Filed traffic dataIn July 2026, United Airlines operated the most departures, one of 4 carriers flying nonstop BWI–IAH; the Boeing 737 MAX 9 was the most common aircraft at 32% of departures; flights ran 86% full.
Departures
207
July 2026
Seats
38,794
both directions
Passengers
33,255
both directions
Load factor
85.7%
RPM ÷ ASM
Who flies BWI–IAH?
United Airlines operated the most nonstop BWI–IAH departures in July 2026 (150), one of 4 carriers on the route.
- UA
150 departures · 26,330 seats
Share of departures72.5%83.9%
Load
- F9
56 departures · 12,334 seats
Share of departures27.1%89.5%
Load
- DL
1 departures · 130 seats
Share of departures0.5%93.1%
Load
- NK
0 departures · 0 seats
Share of departures0.0%—
Load
What plane flies BWI–IAH?
In July 2026, the Boeing 737 MAX 9 flew 32% of BWI–IAH departures — more than any other aircraft type.
- Boeing 737 MAX 9
67 departures · 83.8% load
32.4% - Boeing 737-800
39 departures · 84.3% load
18.8% - Boeing 737-900
35 departures · 83.0% load
16.9% - Airbus A321neo
29 departures · 89.1% load
14.0% - Airbus A320neo
17 departures · 90.0% load
8.2% - Airbus A321
8 departures · 90.9% load
3.9% - Boeing 737-900ER
8 departures · 89.4% load
3.9% - Airbus A320
2 departures · 85.5% load
1.0% - Airbus A220-300
1 departures · 93.1% load
0.5% - Boeing 737 MAX 8
1 departures · 70.5% load
0.5%
How has BWI–IAH traffic changed?
Nonstop BWI–IAH departures fell from 233 in August 2025 to 207 in July 2026.
Monthly nonstop BWI–IAH traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
233 departures · 32,893 passengers
83.2%
Load
September 2025
247 departures · 30,838 passengers
74.6%
Load
October 2025
260 departures · 34,857 passengers
82.6%
Load
November 2025
268 departures · 33,849 passengers
73.2%
Load
December 2025
211 departures · 31,631 passengers
85.3%
Load
January 2026
223 departures · 29,151 passengers
74.3%
Load
February 2026
200 departures · 26,284 passengers
79.2%
Load
March 2026
220 departures · 32,195 passengers
84.0%
Load
April 2026
238 departures · 33,699 passengers
77.6%
Load
May 2026
224 departures · 34,107 passengers
83.9%
Load
June 2026
201 departures · 32,335 passengers
85.7%
Load
July 2026
207 departures · 33,255 passengers
85.7%
Load
By direction
Each direction is filed separately — they rarely match.
IAH → BWI
82.7% full
106 departures · 16,315 passengers
BWI → IAH
88.8% full
101 departures · 16,940 passengers
Nonstop BWI–IAH traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Baltimore
US
Baltimore/Washington International Thurgood Marshall Airport
Coordinates
39.18°N, 76.67°W
Hemisphere
N · W
Frequently asked
How far is Baltimore (BWI) from Houston (IAH)?
BWI to IAH is 1,234 miles (1,986 km / 1,072 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BWI to IAH?
A nonstop covers the 1,234-mile great-circle distance in roughly 3h 16m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BWI–IAH?
In July 2026, the Boeing 737 MAX 9 flew the largest share of departures (32.4%), followed by the Boeing 737-800 (18.8%).
What mileage do I earn flying BWI–IAH?
Distance-based programs credit off the 1,234-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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