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$575+ Cheap flights from Killeen to Philadelphia (GRK - PHL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — PHL
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from Killeen to Philadelphia

Cheapest flights from Killeen to Philadelphia
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 February 28, 2026.

This American Airlines deal was found by Cheapflights users on 2/26. 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 8/812:11 pm
GRK
-
PHL
1 stop7h 49m
American Airlines
Sun 8/167:00 am
PHL
-
GRK
1 stop5h 40m
American Airlines
Deal found 2/26$575
This American Airlines deal was found by Cheapflights users on 2/25. 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 5/223:07 pm
GRK
-
PHL
1 stop6h 46m
American Airlines
Mon 5/255:39 pm
PHL
-
GRK
1 stop6h 05m
American Airlines
Deal found 2/25$595
This American Airlines deal was found by Cheapflights users on 2/28. 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 3/77:00 am
GRK
-
PHL
1 stop6h 37m
American Airlines
Fri 3/1312:55 pm
PHL
-
GRK
1 stop6h 08m
American Airlines
Deal found 2/28$743
This American Airlines deal was found by Cheapflights users on 2/27. 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 2/276:33 pm
GRK
-
PHL
1 stop5h 21m
American Airlines
Sun 3/12:57 pm
PHL
-
GRK
1 stop8h 06m
American Airlines
Deal found 2/27$781
This American Airlines deal was found by Cheapflights users on 2/25. 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 6/1910:04 am
GRK
-
PHL
1 stop5h 34m
American Airlines
Mon 6/225:39 pm
PHL
-
GRK
1 stop6h 05m
American Airlines
Deal found 2/25$902

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 February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$575
(American Airlines)
Provider with most accurate pricing for Killeen Fort Hood Regional-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Killeen Fort Hood Regional-Philadelphia flights.
Search Deals
From Killeen Fort Hood Regional to Philadelphia
Search Deals

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 February 28, 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

Price

KilleenPhiladelphia

GRK - PHL

GRKPHL

Killeen Fort Hood Regional

Sat 8/8

12:11 pm-9:00 pm

1 stop7h 49m

Philadelphia

Sun 8/16

7:00 am-11:40 am

1 stop5h 40m

$575

KilleenPhiladelphia

GRK - PHL

GRKPHL

Killeen Fort Hood Regional

Fri 5/22

3:07 pm-10:53 pm

1 stop6h 46m

Philadelphia

Mon 5/25

5:39 pm-10:44 pm

1 stop6h 05m

$595

KilleenPhiladelphia

GRK - PHL

GRKPHL

Killeen Fort Hood Regional

Fri 6/19

10:04 am-4:38 pm

1 stop5h 34m

Philadelphia

Mon 6/22

5:39 pm-10:44 pm

1 stop6h 05m

$902

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Cheapflights Insights

Everything you need to know about your flight from Killeen to Philadelphia

What is the cheapest month to book a flight from Killeen to Philadelphia?

Currently, January is the cheapest month in which you can book a flight from Killeen to Philadelphia (average of $81). Flying from Killeen to Philadelphia 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.

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 February 28, 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.
American Airlines
7.2
Good
11,367 reviews

Crew

8.0

Comfort

7.2

Boarding

7.5

Overall

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,367 reviews
American Airlines
7.2
Good
11,367 reviews

Crew

8.0

Comfort

7.2

Boarding

7.5

Overall

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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.

  • How long is the flight from Killeen to Philadelphia?

    For as low as $595, American Airlines can have you in Philadelphia from Killeen in 6h 46m. Airlines will cover a distance of 1403 mi.

  • What is the cheapest airline to fly from Killeen to Philadelphia round-trip?

    According to our current data, American Airlines ($527), offers the cheapest pricing from Killeen to Philadelphia.

  • Can I find deals for flights from Killeen to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Killeen to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Killeen to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Killeen to Philadelphia.

  • Can I find deals for business class flights from Killeen to Philadelphia?

    Yes. Cheapflights offers flight deals from Killeen to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Killeen to Philadelphia?

    Currently, January is the cheapest month in which you can book a flight from Killeen to Philadelphia (average of $81). Flying from Killeen to Philadelphia 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.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
Reading
Ocean City
King of Prussia
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Newark

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Alternative routes for Killeen to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$527Average$669FlexibilityNo cancel feeOn-time71%

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