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$896+ Cheap flights from Killeen (GRK) to Portugal

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — LIS
out 16 — out 231
qui 10/16
qui 10/23
1 adult, Economy
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Cheap flight deals from Killeen to Portugal

Keep the following information in mind while searching for Killeen to Portugal flight deals. Data was last updated setembro 16, 2025.

Round-trip from

$896
(American Airlines)
From Killeen Fort Hood Regional to Portugal
Search Deals

Find flight deals from Killeen to Portugal

Cheapest flights from Killeen to Portugal
Explore the most affordable flight options available from Killeen to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on setembro 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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.
dom 10/54:32 pmGRK - LIS
2 stops24h 33mAmerican Airlines
qua 10/157:20 amLIS - GRK
2 stops21h 32mAmerican Airlines
Deal found 9/16$896
This American Airlines deal was found by Cheapflights users on 9/16. 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.
qui 10/96:13 pmGRK - LIS
2 stops22h 52mAmerican Airlines
qua 10/157:20 amLIS - GRK
2 stops20h 13mAmerican Airlines
Deal found 9/16$1,006
This American Airlines deal was found by Cheapflights users on 9/16. 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.
sex 10/106:13 pmGRK - LIS
2 stops17h 52mAmerican Airlines
ter 10/147:15 amLIS - GRK
2 stops20h 18mAmerican Airlines
Deal found 9/16$1,331
This American Airlines deal was found by Cheapflights users on 9/16. 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.
qua 10/86:09 pmGRK - LIS
2 stops17h 46mAmerican Airlines
ter 10/147:15 amLIS - GRK
2 stops20h 18mAmerican Airlines
Deal found 9/16$1,346
This American Airlines deal was found by Cheapflights users on 9/13. 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.
sáb 12/67:15 pmGRK - LIS
2 stops31h 40mAmerican Airlines
qua 12/108:20 amLIS - GRK
2 stops18h 45mAmerican Airlines
Deal found 9/13$1,499

Cheapflights Fare Finder

 
Customize your flight search to find flights from Killeen to Portugal 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 setembro 16, 2025.
Use the filters below to find and compare flights from Killeen to Portugal that are best for you.

Fly from

Killeen

Fly to

Portugal

Route

Depart

Return

Price

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

ter 10/7

6:09 pm-11:00 pm

2 stops22h 51m

Lisbon Humberto Delgado

ter 10/14

1:35 pm-10:52 pm

2 stops39h 17m

$896

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

dom 10/5

11:38 am-11:05 pm

2 stops29h 27m

Lisbon Humberto Delgado

ter 10/14

1:35 pm-10:52 pm

2 stops39h 17m

$896

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

seg 10/6

12:34 pm-5:55 pm

2 stops23h 21m

Lisbon Humberto Delgado

ter 10/14

7:15 am-10:52 pm

2 stops45h 37m

$896

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

seg 10/6

12:34 pm-11:10 pm

2 stops28h 36m

Lisbon Humberto Delgado

qua 10/15

7:20 am-9:33 pm

2 stops20h 13m

$896

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

dom 10/5

4:32 pm-11:05 pm

2 stops24h 33m

Lisbon Humberto Delgado

qua 10/15

7:20 am-10:52 pm

2 stops21h 32m

$896

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

qui 10/9

6:13 pm-11:05 pm

2 stops22h 52m

Lisbon Humberto Delgado

ter 10/14

7:15 am-9:33 pm

2 stops20h 18m

$1,006

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

qui 10/9

6:13 pm-11:05 pm

2 stops22h 52m

Lisbon Humberto Delgado

qua 10/15

7:20 am-9:33 pm

2 stops20h 13m

$1,006

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

sex 10/10

6:13 pm-6:05 pm

2 stops17h 52m

Lisbon Humberto Delgado

ter 10/14

7:15 am-9:33 pm

2 stops20h 18m

$1,331

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

sex 10/10

6:13 pm-6:05 pm

2 stops17h 52m

Lisbon Humberto Delgado

qua 10/15

7:20 am-9:33 pm

2 stops20h 13m

$1,331

KilleenLisbon

GRK - LIS

GRKLIS

Killeen Fort Hood Regional

qua 10/8

6:09 pm-5:55 pm

2 stops17h 46m

Lisbon Humberto Delgado

ter 10/14

7:15 am-9:33 pm

2 stops20h 18m

$1,346

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 11 results
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Best time to book a flight from Killeen to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, January is the cheapest month in which you can book a flight from Killeen to Portugal (average of $612). Flying from Killeen to Portugal in June is currently the most expensive (average of $1,127). 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.

Related info for your journey

Find useful and relevant information for your journey from Killeen to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Killeen to Portugal?

    Located just 6.9 mi from the city center, Killeen Fort Hood Regional (GRK) is the airport most travelers will use when flying to Portugal from Killeen.

  • How long is the flight from Killeen to Portugal?

    A quick flight from Killeen to Portugal can take about 22h 51m. American Airlines provides one of the quickest options available for as low as $896. The distance from Killeen to Portugal is about 4848 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Killeen to Portugal 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 Portugal?

    Currently, January is the cheapest month in which you can book a flight from Killeen to Portugal (average of $612). Flying from Killeen to Portugal in June is currently the most expensive (average of $1,127). 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

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