$551+ Cheap flights from Portland, ME to Killeen (PWM - GRK)
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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — GRK
Oct 2 — Oct 91
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 Portland to Killeen
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One-way
Cheapest flights from Portland to KilleenExplore the most affordable flight options available from Portland to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
Explore the most affordable flight options available from Portland to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Tue 10/611:57 am -
2 stops9h 55m
Sun 10/1110:00 am -
1 stop7h 47m
Deal found 8/28![American Airlines logo]()
$551
Best flights from Portland to KilleenDiscover carefully curated flight deals from Portland to Killeen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Portland to Killeen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This American Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 10/66:00 am -
2 stops9h 44m
Sun 10/1110:00 am -
1 stop7h 47m
Deal found 9/1![American Airlines logo]()
$551
Last-minute flights from Portland to KilleenDiscover last-minute flight deals from Portland to Killeen. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Killeen. Data last updated September 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Tue 10/611:57 am -
2 stops9h 55m
Sun 10/1110:00 am -
1 stop7h 47m
Deal found 8/28![American Airlines logo]()
$551
One-way flights from Portland to KilleenSearch for one-way flight options from Portland to Killeen. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Portland to Killeen. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/85:30 am -
2 stops10h 05m
Deal found 8/31![American Airlines logo]()
$644
Find flight deals from Portland to Killeen
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Killeen (GRK). 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 September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $551 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Killeen 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 7,457,451 searches. Data last updated September 2, 2026.
Use the filters below to find and compare flights from Portland to Killeen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandKilleen
PWM Portland - GRK Killeen Fort Hood Regional
PWMGRK
Portland
Tue 10/6
6:00 am-2:44 pm
2 stops9h 44m
Killeen Fort Hood Regional
Sun 10/11
10:00 am-6:47 pm
1 stop7h 47m
$551
Cheapest one-way
Quickest one-way
PortlandKilleen
PWM Portland - GRK Killeen Fort Hood Regional
PWMGRK
Portland
Tue 9/8
5:30 am-2:35 pm
2 stops10h 05m
$644
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Portland, Maine-Killeen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Killeen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Killeen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Killeen 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 Portland, Maine-Killeen 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 Portland to Killeen
Have a flexible travel schedule? Discover the best time to fly to Killeen from Portland with our price prediction graph.
PWM-GRK
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.
Related info for your journey
Find useful and relevant information for your journey from Portland to Killeen. 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 Killeen?
Book flights to Killeen if you plan to visit one of these locationsTemple
Copperas Cove
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