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$367+ Cheap flights from Killeen to San Diego (GRK - SAN)

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SAN
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Killeen to San Diego

Cheapest flights from Killeen to San Diego
Explore the most affordable flight options available from Killeen to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This American Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 4/95:00 am
GRK
-
SAN
1 stop5h 15m
American Airlines
Sat 4/1112:17 pm
SAN
-
GRK
1 stop7h 35m
American Airlines
Deal found 3/19$367
This American Airlines deal was found by Cheapflights users on 3/19. 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 4/810:05 am
GRK
-
SAN
1 stop7h 46m
American Airlines
Sat 4/1112:17 pm
SAN
-
GRK
1 stop7h 35m
American Airlines
Deal found 3/19$425
This American Airlines deal was found by Cheapflights users on 3/17. 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 6/167:21 pm
GRK
-
SAN
1 stop5h 18m
American Airlines
Tue 6/233:10 pm
SAN
-
GRK
1 stop6h 28m
American Airlines
Deal found 3/17$447
This American Airlines deal was found by Cheapflights users on 3/17. 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.
Mon 6/157:21 pm
GRK
-
SAN
1 stop6h 38m
American Airlines
Tue 6/233:10 pm
SAN
-
GRK
1 stop6h 28m
American Airlines
Deal found 3/17$473
This American Airlines deal was found by Cheapflights users on 3/19. 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 4/177:09 pm
GRK
-
SAN
1 stop6h 47m
American Airlines
Wed 4/229:28 am
SAN
-
GRK
2 stops7h 11m
American Airlines
Deal found 3/19$480
This American Airlines deal was found by Cheapflights users on 3/17. 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 3/206:33 pm
GRK
-
SAN
1 stop7h 26m
American Airlines
Tue 4/212:04 pm
SAN
-
GRK
1 stop5h 48m
American Airlines
Deal found 3/17$484
This American Airlines deal was found by Cheapflights users on 3/17. 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 4/103:54 pm
GRK
-
SAN
1 stop8h 06m
American Airlines
Fri 4/174:41 pm
SAN
-
GRK
1 stop5h 05m
American Airlines
Deal found 3/17$505
This American Airlines deal was found by Cheapflights users on 3/20. 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 4/75:00 am
GRK
-
SAN
1 stop5h 15m
American Airlines
Sat 4/1112:17 pm
SAN
-
GRK
1 stop7h 35m
American Airlines
Deal found 3/20$515
This American Airlines deal was found by Cheapflights users on 3/17. 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 6/163:07 pm
GRK
-
SAN
1 stop6h 12m
American Airlines
Wed 6/243:10 pm
SAN
-
GRK
1 stop5h 34m
American Airlines
Deal found 3/17$524
This American Airlines deal was found by Cheapflights users on 3/19. 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 4/103:54 pm
GRK
-
SAN
1 stop8h 06m
American Airlines
Sun 4/1212:17 pm
SAN
-
GRK
1 stop7h 35m
American Airlines
Deal found 3/19$537

Find flight deals from Killeen to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to San Diego (SAN). 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 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$367
(American Airlines)
Provider with most accurate pricing for Killeen Fort Hood Regional-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Killeen Fort Hood Regional-San Diego flights.
Search Deals
From Killeen Fort Hood Regional to San Diego
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Killeen to San Diego 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 21, 2026.
Use the filters below to find and compare flights from Killeen to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Thu 4/16

7:09 pm-11:56 pm

1 stop6h 47m

San Diego

Sat 4/18

3:21 pm-11:46 pm

1 stop6h 25m

$367

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Wed 4/8

10:05 am-3:51 pm

1 stop7h 46m

San Diego

Sat 4/11

12:17 pm-9:52 pm

1 stop7h 35m

$425

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Fri 4/17

7:09 pm-11:56 pm

1 stop6h 47m

San Diego

Wed 4/22

9:28 am-6:39 pm

2 stops7h 11m

$480

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Fri 4/10

3:54 pm-10:00 pm

1 stop8h 06m

San Diego

Fri 4/17

4:41 pm-11:46 pm

1 stop5h 05m

$505

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Wed 6/17

3:07 pm-8:07 pm

1 stop7h 00m

San Diego

Tue 6/23

3:10 pm-11:38 pm

1 stop6h 28m

$524

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Fri 4/10

3:54 pm-10:00 pm

1 stop8h 06m

San Diego

Sun 4/12

12:17 pm-9:52 pm

1 stop7h 35m

$537
Quickest round-trip

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Mon 6/15

7:21 pm-10:39 pm

1 stop5h 18m

San Diego

Wed 6/24

3:10 pm-10:44 pm

1 stop5h 34m

$550

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Fri 7/10

7:21 pm-10:37 pm

1 stop5h 16m

San Diego

Wed 7/15

6:20 am-2:36 pm

1 stop6h 16m

$561

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Tue 6/16

3:07 pm-7:19 pm

1 stop6h 12m

San Diego

Mon 6/22

4:33 pm-11:38 pm

1 stop5h 05m

$584

KilleenSan Diego

GRK - SAN

GRKSAN

Killeen Fort Hood Regional

Wed 4/8

10:05 am-3:51 pm

1 stop7h 46m

San Diego

Sun 4/12

12:17 pm-9:52 pm

1 stop7h 35m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Killeen to San Diego

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 San Diego in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice 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-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Killeen-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Killeen-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Killeen-San Diego 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-San Diego 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 San Diego

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

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

Currently, December is the cheapest month in which you can book a flight from Killeen to San Diego (average of $70). Flying from Killeen to San Diego in May is currently the most expensive (average of $198). 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 San Diego. 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 San Diego?

    For as low as $367, American Airlines can have you in San Diego from Killeen in 6h 47m. Killeen and San Diego are separated by a distance of 1140 mi.

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

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

  • How can I find direct flights from Killeen to San Diego?

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

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

    Yes. Cheapflights offers flight deals from Killeen to San Diego 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 San Diego?

    Currently, December is the cheapest month in which you can book a flight from Killeen to San Diego (average of $70). Flying from Killeen to San Diego in May is currently the most expensive (average of $198). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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