$403+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SAN
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Killeen to San Diego with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Killeen to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Killeen to San DiegoExplore 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 September 22, 2026.
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 September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/19. 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 9/255:00 am -
1 stop7h 25m
Mon 10/54:26 pm -
1 stop5h 10m
Deal found 9/19![American Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 9/21. 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 12/1712:26 pm -
1 stop5h 14m
Sun 12/207:15 am -
1 stop5h 03m
Deal found 9/21![American Airlines logo]()
$639
Best flights from Killeen to San DiegoDiscover carefully curated flight deals from Killeen to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Killeen to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/21. 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 12/1712:26 pm -
1 stop5h 14m
Sun 12/207:15 am -
1 stop5h 03m
Deal found 9/21![American Airlines logo]()
$639
Last-minute flights from Killeen to San DiegoDiscover last-minute flight deals from Killeen to San Diego. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Killeen to San Diego. Data last updated September 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/19. 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 9/255:00 am -
1 stop7h 25m
Mon 10/54:26 pm -
1 stop5h 10m
Deal found 9/19![American Airlines logo]()
$534
One-way flights from Killeen to San DiegoSearch for one-way flight options from Killeen to San Diego. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Killeen to San Diego. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This American Airlines deal was found by Cheapflights users on 9/20. 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 10/67:00 am -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 10/55:00 am -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/1012:28 pm -
2 stops22h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Fri 10/912:28 pm -
2 stops11h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$510
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $639 (American Airlines) |
One-way from | $403 (American Airlines) |
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 7,457,451 searches. Data last updated September 22, 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
Cheapest round-trip
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Wed 10/7
7:00 am-10:27 am
1 stop5h 27m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$403
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Sat 10/17
3:16 pm-8:04 pm
1 stop6h 48m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$403
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Tue 9/29
7:00 am-12:03 pm
1 stop7h 03m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$403
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Tue 10/6
7:00 am-10:27 am
1 stop5h 27m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$403
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Thu 10/8
5:00 am-10:27 am
1 stop7h 27m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$437
Quickest round-trip
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Mon 10/5
5:00 am-8:24 am
1 stop5h 24m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$437
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Fri 10/9
7:02 pm-11:38 pm
1 stop6h 36m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$437
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Sun 10/18
7:00 am-10:27 am
1 stop5h 27m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$437
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Thu 12/17
12:26 pm-3:40 pm
1 stop5h 14m
San Diego
Sun 12/20
7:15 am-2:18 pm
1 stop5h 03m
$639
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
GRK-SAN
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 San Diego. 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 San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Coronado
San Ysidro
Poway
La Mesa
Santee
Julian
Lemon Grove
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