Basic Economy allows a personal item only; no carry-on bags without extra fees.
Prepay for checked bags 24 hours before to save on fees.

Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $198 (CheapOair) |
One-way from | $78 (Frontier) |
Popular in | February |
Cheapest in | December |
Average price | $314 |
Good round-trip deal | $297 or less |
Good one-way deal | $146 or less |
Fly from
Fly to
Route
Depart
Return
Price
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Fri 10/31
12:25 pm-4:41 pm
Nonstop3h 16m
Philadelphia
Tue 11/4
8:15 am-11:00 am
Nonstop3h 45m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Fri 11/7
6:30 pm-10:46 pm
Nonstop3h 16m
Philadelphia
Sun 11/9
5:58 pm-8:50 pm
Nonstop3h 52m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Mon 11/10
6:30 pm-10:46 pm
Nonstop3h 16m
Philadelphia
Mon 11/17
5:58 pm-8:50 pm
Nonstop3h 52m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Fri 11/7
6:30 pm-10:46 pm
Nonstop3h 16m
Philadelphia
Sat 11/8
5:58 pm-8:50 pm
Nonstop3h 52m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Sun 11/23
6:40 pm-12:51 am
1 stop5h 11m
Philadelphia
Thu 11/27
12:22 pm-6:20 pm
1 stop6h 58m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Thu 3/12
11:50 am-8:37 pm
1 stop7h 47m
Philadelphia
Wed 3/18
7:20 pm-11:59 pm
1 stop5h 39m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Wed 11/26
7:25 am-11:40 am
Nonstop3h 15m
Philadelphia
Thu 11/27
8:15 am-11:00 am
Nonstop3h 45m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Mon 12/22
9:54 am-6:13 pm
1 stop7h 19m
Philadelphia
Wed 12/31
7:00 am-1:47 pm
1 stop7h 47m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Tue 10/28
6:09 pm-12:52 am
1 stop5h 43m
Philadelphia
Sat 11/1
5:20 pm-10:11 pm
1 stop5h 51m
HoustonPhiladelphia
IAH - PHL
IAHPHL
Houston George Bush Intcntl
Fri 11/14
6:30 pm-10:46 pm
Nonstop3h 16m
Philadelphia
Sun 11/16
8:15 am-11:00 am
Nonstop3h 45m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Houston George Bush Intcntl Airport to Philadelphia, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Philadelphia (average of $72). Flying from Houston George Bush Intcntl Airport to Philadelphia in June is currently the most expensive (average of $125). 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.
It’s optimal to fly from Houston George Bush Intcntl Airport to Philadelphia in the evening. By choosing this option you can save up to 72% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Philadelphia flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Comfort
Boarding
Crew
Overall
Entertainment
Food
Reviews
Matthew,Oct 2025
GSP - ATL
Comfort
Boarding
Crew
Overall
Entertainment
Food
Reviews
Matthew,Oct 2025
GSP - ATL
Comfort
Boarding
Crew
Overall
Entertainment
Food
Reviews
Matthew,Oct 2025
GSP - ATL
Comfort
Boarding
Crew
Overall
Entertainment
Food
Reviews
Matthew,Oct 2025
GSP - ATL
Comfort
Boarding
Crew
Overall
Entertainment
Food
Reviews
Matthew,Oct 2025
GSP - ATL
Comfort
Boarding
Crew
Overall
Entertainment
Food
Reviews
Matthew,Oct 2025
GSP - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$86 | Average$205 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$101 | Average$149 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$209 | Average$331 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$219 | Average$389 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$236 | Average$314 | FlexibilityNo cancel fee | On-timeN/A |