Cheap flights from Phoenix to Houston Intercontinental
Phoenix to Houston Intercontinental (PHX → IAH). We are tracking 12 fares on this route.
Cheapest tracked fare $19 · typical price $94 · you save about $75 (80%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier
2026-10-31
Direct
$19
—
2026-11-07
Direct
$19
—
2026-10-27
Direct
$29
Frontier
2026-10-28
Direct
$46
—
2026-12-01
Direct
$54
Frontier
2026-11-11
Direct
$54
—
2026-11-04
Direct
$71
—
2026-12-02
Direct
$71
—
2026-10-21
Direct
$71
—
2026-12-03
Direct
$71
—
2026-11-12
Direct
$71
—
2027-02-03
Direct
$116
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Phoenix to Houston Intercontinental get?
The cheapest fare we have tracked on this route is $19, compared with a typical $94 for a trip of this distance.
Is it cheaper to fly to Houston Intercontinental from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Phoenix to Houston Intercontinental cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.