The sector is held by United Airlines and WestJet.
Airport pair · hand carry reference
YYC Calgary to IAH Houston
Calgary International, Canada, to George Bush Intercontinental, the United States. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- 3.6 times a day
- Great circle
- 2,813 km
- Block, estimated
- 4h 06m
- Door to door
- 10h 51m
What YYC to IAH looks like
The YYC to IAH sector, the carriers on it and the flying time, before anything is promised to anybody.
Calgary YYC to Houston IAH is a medium haul sector of 2,813 km by great circle, flown nonstop 3.6 times a day.
At the cruise speed this site models for 2,813 km, 830 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 4h 06m.
Calgary YYC is a large airport in the network held here, 105 scheduled destinations and 319.5 departures a day. Houston IAH has 197 destinations and 641 departures a day.
Houston runs no time shift at all of Calgary in January and one hour ahead in July, because the two ends do not change their clocks together.
The pair sits inside the Americas, a corridor where the site already publishes 13 written lanes that go into customs and ground detail this page does not.
Who flies the sector, and how often
Average daily frequencies on YYC to IAH from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| YYC to IAH | 3.57 | 25 | United Airlines, WestJet |
| IAH to YYC | 3.29 | 23 | United Airlines, WestJet |
Two carriers hold the sector, United Airlines and WestJet, which gives a missed departure somewhere to go without leaving the nonstop.
At 3.6 times a day there is usually another departure within a few hours, which is what makes a same day booking on this pair realistic.
Between them the two directions put about 48 departures a week on YYC to IAH, which is the number that decides whether a seat can be found today or on Thursday.
The clock from collection to signature
The same ground timings the route calculator starts from, applied to the 4h 06m block time on YYC to IAH. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to YYC | 90 min | 1h 30m |
| At YYC before departure | 180 min | 4h 30m |
| YYC to IAH in the air, estimated | 246 min | 8h 36m |
| Formalities at IAH | 90 min | 10h 06m |
| Delivery run in Houston | 45 min | 10h 51m |
| Door to door | 651 min | 10h 51m |
On the desk standard ground timings, ninety minutes to collect and reach the airport, three hours at the airport before departure, ninety minutes of arrival formalities and a forty five minute delivery run, the door to door figure for YYC to IAH is 10h 51m.
A courier who leaves Calgary at 09:00 local is on the ground in Houston at about 13:06 local and at the door by 15:21 the same day.
Working backwards from a six in the evening handover in Houston, the last useful departure from Calgary is around 11:39 local.
When the nonstop does not work
Every airport that joins the two ends, ranked by when they land, among the ones whose weaker leg is dependable enough to plan on. Connection time is allowed for the size of the hub. 40 of them join YYC to IAH.
| Connecting at | YYC to hub, flights a day | Hub to IAH, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Denver DEN | 4.71 | 15.57 | 2,833 | 6h 07m |
| Dallas DFW | 2.29 | 19.57 | 2,813 | 6h 10m |
| Salt Lake City SLC | 2.29 | 6.29 | 3,081 | 6h 11m |
| Edmonton YEG | 16 | 0.57 | 3,231 | 6h 11m |
| Minneapolis MSP | 3.29 | 6.43 | 3,355 | 6h 32m |
| Phoenix PHX | 2.29 | 7.86 | 3,594 | 6h 50m |
With 3.6 times a day on the nonstop, a connection here is a disruption plan rather than a routing, and it is listed because a closed runway or a cancellation wave is exactly when nobody has time to work it out.
40 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Denver DEN, where the weaker of the two legs still runs 4.7 times a day.
Through DEN the routing covers 2,833 km against the 2,813 km nonstop track and takes about 6h 07m in the air and on the ground at the hub, allowing 90 minutes to connect at an airport of that size.
That is only 2h 01m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Dallas DFW at 6h 10m and Salt Lake City SLC at 6h 11m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves Calgary, Edmonton YEG is 246 km away by great circle and carries 47 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
If nothing suitable leaves Houston, Houston HOU is 38 km away by great circle and carries 145 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Plan Calgary to Houston yourself
The same tool the dispatchers use, open to anybody and free. It is loaded with this pair already. Change either end, add a stopover or a preferred airline, and it works out the connection, the transit and the door to door clock, with the real departures underneath. Put it on your own site if it is useful to you.
min
min
min
min
Restrictions
Where this came from, and where to look next
- Carriers and frequencies: AeroDataBox scheduled route statistics, retrieved 2026-09-07. Average daily flights, not a timetable.
- Distances: great circle from published coordinates. They read short against a flown track, which is why the block time above applies a factor to them.
- Block and connection times: the same model the route calculator lower down this page runs, at the same rounding.
- Restrictions: the airport notes file, checked 2026-09-07.
- Industrial sites: public company information. Nothing here says or implies that any company named is a customer of any courier operator.
Who publishes this. OnBoard Courier is a placement desk in Dubai. An assignment is carried out by a vetted partner operator, with the desk as the single point of contact from the quote to the signature. This page exists because our own dispatchers need the answer for YYC to IAH in the twenty minutes before a promise is made, and a reference only one operator can read is not a reference. Free to read, quote and cite. Found an error? Tell us and we will correct it.
If you need something moved rather than looked up, the desk prices a hand carry in fifteen minutes.
- The YYC airport entry
- The IAH airport entry
- Hand carry into Canada
- Hand carry into the United States
- The written lane, Doha to Houston
- The written lane, Dubai to Houston
- The written lane, Houston to Aberdeen
- The route calculator
More pairs through YYC and IAH: Atlanta to Houston, San Francisco to Houston, Chicago to Houston, Houston to Boston, Seattle to Houston, Frankfurt to Houston, Detroit to Houston, Amsterdam to Houston.