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$556+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — PWM
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Cheap flight deals from Killeen to Portland

Cheapest flights from Killeen to Portland
Explore the most affordable flight options available from Killeen to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This American Airlines deal was found by Cheapflights users on 3/14. 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 4/110:15 am
GRK
-
PWM
2 stops11h 44m
American Airlines
Wed 4/810:47 am
PWM
-
GRK
2 stops12h 05m
American Airlines
Deal found 3/14$556

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 March 15, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$556
(American Airlines)
Provider with most accurate pricing for Killeen Fort Hood Regional-Portland flight deals.
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Provider most trusted by Cheapflights users for Killeen Fort Hood Regional-Portland flights.
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From Killeen Fort Hood Regional to Portland
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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 2,558,603 searches. Data last updated March 15, 2026.
Use the filters below to find and compare flights from Killeen to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KilleenPortland

GRK - PWM

GRKPWM

Killeen Fort Hood Regional

Wed 4/1

10:15 am-10:59 pm

2 stops11h 44m

Portland

Wed 4/8

10:47 am-9:52 pm

2 stops12h 05m

$556

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

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.
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 Portland

What is the cheapest month to book a flight from Killeen to Portland, Maine?

Currently, April is the cheapest month in which you can book a flight from Killeen to Portland, Maine (average of $117). Flying from Killeen to Portland, Maine in June is currently the most expensive (average of $182). 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 Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated March 15, 2026.
See what other customers who have flown with American Airlines from Killeen to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,472 reviews

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.1

Crew

7.9

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.1
Good
11,472 reviews
American Airlines
7.1
Good
11,472 reviews

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.1

Crew

7.9

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

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.

  • How long is the flight from Killeen to Portland, Maine?

    Departing from Killeen to Portland, Maine will take you 11h 44m. The distance between Killeen and Portland, Maine is about 1730 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Killeen to Portland 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 Portland, Maine?

    Currently, April is the cheapest month in which you can book a flight from Killeen to Portland, Maine (average of $117). Flying from Killeen to Portland, Maine in June is currently the most expensive (average of $182). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Lewiston
Conway

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Killeen to Portland

Discover the top airline that operate flights from Killeen to Portland. 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 March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$251Average$460FlexibilityNo cancel feeOn-time71%

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