$324+ Cheap flights from Killeen to Portland, ME (GRK - PWM)
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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — PWM
Nov 28 — Dec 51
Round-trip
1 adult, Economy
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One-way
One-way flights from Killeen to PortlandSearch for one-way flight options from Killeen to Portland. Find affordable one-way fares based on user searches. Data last updated October 29, 2026.
Search for one-way flight options from Killeen to Portland. Find affordable one-way fares based on user searches. Data last updated October 29, 2026.
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 11/185:00 am -
2 stops9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![American Airlines logo]()
$324
Find flight deals from Killeen to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to Portland (PWM). 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 October 29, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Cheapflights Fare Finder
Customize your flight search to find flights from Killeen to Portland 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 October 29, 2026.
Use the filters below to find and compare flights from Killeen to Portland that are best for you.
Fly from
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Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KilleenPortland
GRK Killeen Fort Hood Regional - PWM Portland
GRKPWM
Killeen Fort Hood Regional
Wed 11/18
5:00 am-3:33 pm
2 stops9h 33m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$324
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Killeen-Portland, Maine flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Killeen-Portland, Maine flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Killeen-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Killeen-Portland, Maine flights, Cheapflights users trust Expedia the most. Expedia 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-Portland, Maine 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 Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Killeen with our price prediction graph.
GRK-PWM
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 Killeen to Portland. 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 Portland?
Book flights to Portland if you plan to visit one of these locationsLewiston
North Conway
Brunswick
Conway
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