Frontier's UpFront Plus guarantees an empty middle seat for added comfort.
Frontier's Zone 1 boarding available with carry-on purchase or special fare bundle.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $94 (CheapOair) |
One-way from | $58 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $310 |
Good round-trip deal | $262 or less |
Good one-way deal | $136 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Thu 1/22
8:15 am-12:00 pm
Nonstop2h 45m
Houston George Bush Intcntl
Sun 1/25
6:45 am-12:10 pm
1 stop6h 25m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Sat 1/17
1:31 pm-5:10 pm
Nonstop2h 39m
Houston George Bush Intcntl
Sun 1/18
4:45 pm-6:49 pm
Nonstop3h 04m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Mon 1/19
10:16 pm-8:01 pm
2 stops20h 45m
Houston George Bush Intcntl
Fri 1/23
2:43 pm-4:56 pm
Nonstop3h 13m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Sun 2/15
6:01 pm-9:36 pm
Nonstop2h 35m
Houston George Bush Intcntl
Tue 2/24
8:20 pm-10:29 pm
Nonstop3h 09m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Fri 1/2
5:50 pm-9:33 pm
Nonstop2h 43m
Houston George Bush Intcntl
Mon 1/5
2:22 pm-9:16 pm
1 stop7h 54m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Thu 12/25
4:04 pm-11:51 pm
1 stop6h 47m
Houston George Bush Intcntl
Thu 1/1
6:00 am-2:54 pm
1 stop9h 54m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Wed 1/7
3:35 pm-7:15 pm
Nonstop2h 40m
Houston George Bush Intcntl
Tue 1/13
4:45 pm-6:49 pm
Nonstop3h 04m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Sun 1/11
7:15 am-1:58 pm
1 stop5h 43m
Houston George Bush Intcntl
Sat 1/17
4:25 pm-11:40 pm
1 stop8h 15m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Fri 1/16
11:53 pm-9:28 am
1 stop8h 35m
Houston George Bush Intcntl
Sun 1/18
10:33 am-7:13 pm
1 stop9h 40m
PhoenixHouston
PHX - IAH
PHXIAH
Phoenix Sky Harbor Intl
Sat 2/21
11:59 pm-8:54 am
1 stop7h 55m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Phoenix Sky Harbor Intl Airport to Houston George Bush Intcntl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, March is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Houston George Bush Intcntl Airport (average of $66). Flying from Phoenix Sky Harbor Intl Airport to Houston George Bush Intcntl Airport in July is currently the most expensive (average of $162). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Unlike at noon, when flights are generally more expensive, you can save up to 52% on flights from Phoenix Sky Harbor Intl Airport to Houston George Bush Intcntl Airport by exploring options for tickets in the afternoon.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Houston George Bush Intcntl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Sunderesh,Dec 2025
AUS - EWR
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Sunderesh,Dec 2025
AUS - EWR
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Sunderesh,Dec 2025
AUS - EWR
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Sunderesh,Dec 2025
AUS - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$197 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$157 | Average$261 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$159 | Average$299 | FlexibilityNo cancel fee | On-time69% |