International route
Cheap flights from Calgary to Houston
Calgary International Airport (YYC) to George Bush Intercontinental Airport (IAH). 1,747 miles, 3h 50m nonstop.
YYC to IAH at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,747 milesgreat-circle
- Typical flight time
- 3h 50mnonstop, gate to gate
- Nonstop airlines
- AADLUAWN10 airlinesAmerican, Delta, United
- Nonstop flights per day
- 16all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday19% less than Sunday
- Time difference
- 1h aheadHouston vs Calgary
Calgary to Houston
Round trips from $154
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 13.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppCalgary to Houston fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Calgary to Houston
10 airlines fly nonstop with 16 departures a day combined, plus 6 more with one stop.
- UAUnited AirlinesStar AllianceNonstop · 3 flights a day · first checked bag from $40
- WSWestJetNonstop · 3 flights a day · first checked bag from $35
- ACAir CanadaStar AllianceNonstop · 2 flights a day · first checked bag from $35
- NKSpirit AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- G4Allegiant AirLow-costNonstop · 1 flight a day · first checked bag from $50
- AAAmerican AirlinesoneworldNonstop · 1 flight a day · first checked bag from $40
- MXBreeze AirwaysLow-costNonstop · 1 flight a day · first checked bag from $45
- DLDelta Air LinesSkyTeamNonstop · 1 flight a day · first checked bag from $35
- F9Frontier AirlinesLow-costNonstop · 1 flight a day · first checked bag from $55
- WNSouthwest AirlinesLow-costNonstop · 1 flight a day · first checked bag from $35
- AMAeroméxicoSkyTeamConnecting via MTY · first checked bag from $40
- ASAlaska AirlinesoneworldConnecting via SEA, PDX, SFO, LAX, SAN · first checked bag from $35
- B6JetBlueConnecting via LAX · first checked bag from $40
- SYSun Country AirlinesLow-costConnecting via MSP · first checked bag from $45
- VBVivaLow-costConnecting via MTY · first checked bag from $45
- Y4VolarisLow-costConnecting via TIJ · first checked bag from $45
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)B6AS2 airlines
- Monterrey (MTY)AMVB2 airlines
- Seattle (SEA)AS1 airline
- Portland (PDX)AS1 airline
- San Francisco (SFO)AS1 airline
Which airport should I use?
CalgaryHouston has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other arrival airports near Houston
Tips for this route
- American, Delta, United and Southwest all fly YYC to IAH nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $154; September 2026 is the most expensive at $212 and up, a difference of $58 per traveler.
- Departing on a Tuesday averages 19% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
Ready to compare live fares?
See every airline on YYC–IAH side by side with bags and seat rules spelled out.
Search Calgary to HoustonCalgary to Houston: common questions
How long is the flight from Calgary to Houston?
A nonstop flight from Calgary (YYC) to Houston (IAH) takes about 3h 50m gate to gate, covering 1,747 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from YYC to IAH?
American Airlines, Delta Air Lines, United Airlines, Southwest Airlines, Spirit Airlines, Frontier Airlines, Allegiant Air, Breeze Airways, Air Canada and WestJet operate nonstop flights from Calgary (YYC) to Houston (IAH), with 16 nonstop departures a day between them. One-stop options connect through LAX, MTY and SEA.
What is the cheapest month to fly from Calgary to Houston?
Over the next six months, January 2027 has the lowest round-trip fares from Calgary (YYC) to Houston (IAH), starting at $154 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Calgary to Houston flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Calgary and Houston?
Houston is 1 hour ahead of Calgary. YYC is on America/Edmonton time and IAH on America/Chicago time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.