Houston (IAH) to Calgary (YYC)
Flight time
≈ 4h 18m
Bearing
332° NW
Houston (IAH) to Calgary (YYC) is 1,748 miles (2,813 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–YYC
Filed traffic dataIn May 2026, WestJet operated the most departures, one of 2 carriers flying nonstop IAH–YYC; the Boeing 737-700 was the most common aircraft at 44% of departures; flights ran 80% full.
Departures
179
May 2026
Seats
26,066
both directions
Passengers
20,910
both directions
Load factor
80.2%
RPM ÷ ASM
Who flies IAH–YYC?
WestJet operated the most nonstop IAH–YYC departures in May 2026 (97), one of 2 carriers on the route.
- WS
WestJet
97 departures · 15,144 seats
Share of departures54.2%77.4%
Load
- UA
82 departures · 10,922 seats
Share of departures45.8%84.2%
Load
What plane flies IAH–YYC?
In May 2026, the Boeing 737-700 flew 44% of IAH–YYC departures — more than any other aircraft type.
- Boeing 737-700
79 departures · 83.4% load
44.1% - Airbus A319
34 departures · 88.0% load
19.0% - Boeing 737-800
30 departures · 77.7% load
16.8% - Boeing 737 MAX 8
22 departures · 73.9% load
12.3% - Airbus A320
8 departures · 66.8% load
4.5% - Boeing 737 MAX 9
4 departures · 66.2% load
2.2% - Boeing 737-900ER
2 departures · 76.3% load
1.1%
How has IAH–YYC traffic changed?
Nonstop IAH–YYC departures fell from 236 in June 2025 to 179 in May 2026.
Monthly nonstop IAH–YYC traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
236 departures · 30,068 passengers
86.1%
Load
July 2025
246 departures · 30,397 passengers
88.2%
Load
August 2025
223 departures · 26,582 passengers
84.6%
Load
September 2025
160 departures · 20,266 passengers
82.2%
Load
October 2025
151 departures · 20,491 passengers
89.8%
Load
November 2025
150 departures · 19,530 passengers
85.9%
Load
December 2025
150 departures · 20,327 passengers
89.6%
Load
January 2026
140 departures · 18,942 passengers
87.2%
Load
February 2026
130 departures · 18,436 passengers
92.2%
Load
March 2026
149 departures · 19,937 passengers
88.1%
Load
April 2026
141 departures · 17,657 passengers
84.2%
Load
May 2026
179 departures · 20,910 passengers
80.2%
Load
By direction
Each direction is filed separately — they rarely match.
IAH → YYC
88.8% full
90 departures · 11,633 passengers
YYC → IAH
71.5% full
89 departures · 9,277 passengers
Nonstop IAH–YYC 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
Calgary
CA
Calgary International Airport
Coordinates
51.12°N, 114.01°W
Hemisphere
N · W
Frequently asked
How far is Houston (IAH) from Calgary (YYC)?
IAH to YYC is 1,748 miles (2,813 km / 1,519 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to YYC?
A nonstop covers the 1,748-mile great-circle distance in roughly 4h 18m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–YYC?
In May 2026, the Boeing 737-700 flew the largest share of departures (44.1%), followed by the Airbus A319 (19.0%).
What mileage do I earn flying IAH–YYC?
Distance-based programs credit off the 1,748-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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