$578+ Cheap flights from Killeen to Philadelphia (GRK - PHL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — PHL
Aug 8 — Aug 151
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Killeen to Philadelphia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Killeen to PhiladelphiaExplore the most affordable flight options available from Killeen to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
Explore the most affordable flight options available from Killeen to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:37 pm
GRK
- PHL
1 stop5h 11m
American Airlines
Sat 8/154:28 pm
PHL
- GRK
1 stop5h 31m
American Airlines
Deal found 7/6![American Airlines logo]()
$661
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:52 am
GRK
- PHL
1 stop6h 13m
American Airlines
Sat 11/2110:46 am
PHL
- GRK
1 stop8h 32m
American Airlines
Deal found 7/6![American Airlines logo]()
$709
This American Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:00 am
GRK
- PHL
1 stop5h 58m
American Airlines
Sun 1/310:40 am
PHL
- GRK
1 stop8h 16m
American Airlines
Deal found 7/9![American Airlines logo]()
$1,037
Best flights from Killeen to PhiladelphiaDiscover carefully curated flight deals from Killeen to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
Discover carefully curated flight deals from Killeen to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:37 pm
GRK
- PHL
1 stop5h 11m
American Airlines
Sat 8/154:28 pm
PHL
- GRK
1 stop5h 31m
American Airlines
Deal found 7/6![American Airlines logo]()
$661
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:52 am
GRK
- PHL
1 stop6h 13m
American Airlines
Sat 11/218:38 am
PHL
- GRK
2 stops8h 02m
American Airlines
Deal found 7/6![American Airlines logo]()
$792
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:00 am
GRK
- PHL
1 stop5h 58m
American Airlines
Sun 1/310:40 am
PHL
- GRK
1 stop8h 16m
American Airlines
Deal found 7/7![American Airlines logo]()
$1,037
Last-minute flights from Killeen to PhiladelphiaDiscover last-minute flight deals from Killeen to Philadelphia. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Killeen to Philadelphia. Data last updated July 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:37 pm
GRK
- PHL
1 stop5h 11m
American Airlines
Sat 8/154:28 pm
PHL
- GRK
1 stop5h 31m
American Airlines
Deal found 7/6![American Airlines logo]()
$661
One-way flights from Killeen to PhiladelphiaSearch for one-way flight options from Killeen to Philadelphia. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
Search for one-way flight options from Killeen to Philadelphia. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This American Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1812:54 pm
GRK
- PHL
1 stop6h 56m
American Airlines
Deal found 7/4![American Airlines logo]()
$578
Find flight deals from Killeen to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $661 (American Airlines) |
One-way from | $578 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Killeen to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
Use the filters below to find and compare flights from Killeen to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KilleenPhiladelphia
GRK - PHL
GRKPHL
Killeen Fort Hood Regional
Sat 8/8
12:37 pm-6:48 pm
1 stop5h 11m
Philadelphia
Sat 8/15
4:28 pm-8:59 pm
1 stop5h 31m
$661
KilleenPhiladelphia
GRK - PHL
GRKPHL
Killeen Fort Hood Regional
Fri 11/13
11:52 am-7:05 pm
1 stop6h 13m
Philadelphia
Sat 11/21
8:38 am-3:40 pm
2 stops8h 02m
$792
KilleenPhiladelphia
GRK - PHL
GRKPHL
Killeen Fort Hood Regional
Sat 12/19
6:00 am-12:58 pm
1 stop5h 58m
Philadelphia
Sun 1/3
10:40 am-5:56 pm
1 stop8h 16m
$1,037
Cheapest one-way
Quickest one-way
KilleenPhiladelphia
GRK - PHL
GRKPHL
Killeen Fort Hood Regional
Sat 7/18
12:54 pm-8:50 pm
1 stop6h 56m
$578
Sorted by cheapest first
Compare providers for flights from Killeen to Philadelphia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Killeen to Philadelphia in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Killeen-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Killeen-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Killeen-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Killeen-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Killeen-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Killeen to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Killeen with our price prediction graph.
GRK-PHL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Philadelphia
Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated July 9, 2026.
Read reviews from past customers who have flown American Airlines from Killeen to Philadelphia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.8
Overall
7.1
Comfort
7.2
Crew
7.9
Food
6.4
Boarding
7.5
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Entertainment
6.8
Overall
7.1
Comfort
7.2
Crew
7.9
Food
6.4
Boarding
7.5
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Related info for your journey
Find useful and relevant information for your journey from Killeen to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
King of Prussia
Reading
Camden
Ocean City
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Dewey Beach
Wildwood Crest
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
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Killeen and Philadelphia flights
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Top airline flying from Killeen to Philadelphia
Discover the top airline that operate flights from Killeen to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$538 | Average$607 | FlexibilityNo cancel fee | On-time71% |