United's Economy Plus offers extra legroom and priority boarding for a more comfortable journey.
Prepay for checked bags 24 hours before to save on fees with United.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $175 (CheapOair) |
One-way from | $84 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $328 |
Good round-trip deal | $265 or less |
Good one-way deal | $173 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Mon 2/16
6:00 am-2:01 pm
1 stop9h 01m
Houston George Bush Intcntl
Tue 2/24
2:55 pm-10:45 pm
1 stop6h 50m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Sat 1/10
8:05 am-11:05 am
Nonstop4h 00m
Houston George Bush Intcntl
Tue 1/13
7:20 am-2:31 pm
1 stop6h 11m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Sat 3/7
8:00 am-3:48 pm
1 stop8h 48m
Houston George Bush Intcntl
Tue 3/10
1:35 pm-5:53 pm
Nonstop3h 18m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Wed 2/11
8:05 am-11:05 am
Nonstop4h 00m
Houston George Bush Intcntl
Sun 2/15
7:20 am-11:37 am
Nonstop3h 17m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Sat 3/21
5:22 pm-10:59 pm
1 stop6h 37m
Houston George Bush Intcntl
Wed 3/25
2:59 pm-10:54 pm
1 stop6h 55m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Tue 3/24
5:00 pm-9:11 pm
1 stop5h 11m
Houston George Bush Intcntl
Sat 3/28
6:58 pm-12:49 am
1 stop4h 51m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Sat 3/21
5:22 pm-10:59 pm
1 stop6h 37m
Houston George Bush Intcntl
Sat 3/28
1:50 pm-8:52 pm
1 stop6h 02m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Wed 3/25
5:00 pm-9:11 pm
1 stop5h 11m
Houston George Bush Intcntl
Sat 3/28
6:58 pm-12:49 am
1 stop4h 51m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Sat 1/31
8:05 am-11:05 am
Nonstop4h 00m
Houston George Bush Intcntl
Sun 2/1
7:20 am-2:31 pm
1 stop6h 11m
PhiladelphiaHouston
PHL - IAH
PHLIAH
Philadelphia
Thu 1/15
12:40 pm-3:43 pm
Nonstop4h 03m
Houston George Bush Intcntl
Sun 1/18
7:20 am-11:35 am
Nonstop3h 15m
| 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 Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Philadelphia to Houston George Bush Intcntl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, October is the cheapest month in which you can book a flight from Philadelphia to Houston George Bush Intcntl Airport (average of $65). Flying from Philadelphia to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $135). 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 in the morning, when flights are generally more expensive, you can save up to 47% on flights from Philadelphia to Houston George Bush Intcntl Airport by exploring options for tickets in the evening.
Travelers seeking maximum savings on their Philadelphia to Houston George Bush Intcntl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Fort Lauderdale (FLL) – chosen by Cheapflights users on 67% of 1-stop itineraries from Philadelphia to Houston George Bush Intcntl Airport on Cheapflights.
Fort Lauderdale (FLL) is the most affordable 1-stop option, with an average round-trip price of $168.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 56m.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 31m.
Boarding
Food
Entertainment
Crew
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Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Food
Entertainment
Crew
Comfort
Overall
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$105 | Average$221 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$113 | Average$205 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$219 | Average$340 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$232 | Average$378 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$236 | Average$285 | FlexibilityNo cancel fee | On-timeN/A |