Houston (IAH) to Port of Spain (POS)
Flight time
≈ 5h 56m
Bearing
114° SE
Houston (IAH) to Port of Spain (POS) is 2,563 miles (4,124 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–POS
Filed traffic dataIn May 2026, United Airlines was the only carrier flying nonstop IAH–POS; the Boeing 737 MAX 8 was the most common aircraft at 56% of departures; flights ran 64% full.
Departures
62
May 2026
Seats
10,643
both directions
Passengers
6,853
both directions
Load factor
64.4%
RPM ÷ ASM
Who flies IAH–POS?
United Airlines was the only carrier to fly nonstop IAH–POS in May 2026 (62 departures).
- UA
62 departures · 10,643 seats
Share of departures100.0%64.4%
Load
What plane flies IAH–POS?
In May 2026, the Boeing 737 MAX 8 flew 56% of IAH–POS departures — more than any other aircraft type.
- Boeing 737 MAX 8
35 departures · 67.5% load
56.5% - Boeing 737 MAX 9
27 departures · 60.6% load
43.5%
How has IAH–POS traffic changed?
Nonstop IAH–POS departures rose from 58 in June 2025 to 62 in May 2026.
Monthly nonstop IAH–POS traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
58 departures · 7,452 passengers
77.2%
Load
July 2025
62 departures · 8,228 passengers
79.7%
Load
August 2025
62 departures · 8,784 passengers
85.4%
Load
September 2025
60 departures · 6,582 passengers
66.1%
Load
October 2025
62 departures · 5,590 passengers
54.3%
Load
November 2025
60 departures · 5,162 passengers
51.8%
Load
December 2025
62 departures · 7,990 passengers
77.4%
Load
January 2026
48 departures · 5,408 passengers
67.9%
Load
February 2026
52 departures · 5,763 passengers
66.6%
Load
March 2026
60 departures · 6,159 passengers
61.8%
Load
April 2026
60 departures · 7,488 passengers
75.0%
Load
May 2026
62 departures · 6,853 passengers
64.4%
Load
By direction
Each direction is filed separately — they rarely match.
IAH → POS
60.3% full
31 departures · 3,211 passengers
POS → IAH
68.5% full
31 departures · 3,642 passengers
Nonstop IAH–POS traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Port of Spain
TT
Piarco International Airport
Coordinates
10.60°N, 61.34°W
Hemisphere
N · W
Frequently asked
How far is Houston (IAH) from Port of Spain (POS)?
IAH to POS is 2,563 miles (4,124 km / 2,227 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to POS?
A nonstop covers the 2,563-mile great-circle distance in roughly 5h 56m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–POS?
In May 2026, the Boeing 737 MAX 8 flew the largest share of departures (56.5%), followed by the Boeing 737 MAX 9 (43.5%).
What mileage do I earn flying IAH–POS?
Distance-based programs credit off the 2,563-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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