$388+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SAN
Oct 2 — Oct 91
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
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Best
Last-minute
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 2, 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 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/29. 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 9/1012:47 pm -
1 stop6h 59m
Mon 9/1411:15 am -
1 stop5h 30m
Deal found 8/29![American Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/24:09 pm -
1 stop5h 52m
Sun 10/41:50 pm -
1 stop5h 13m
Deal found 9/1![American Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/254:09 pm -
1 stop7h 39m
Sun 9/277:15 am -
1 stop5h 19m
Deal found 8/31![American Airlines logo]()
$494
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 2, 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 2, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/254:09 pm -
1 stop7h 39m
Sun 9/277:15 am -
1 stop5h 19m
Deal found 8/31![American Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/24:09 pm -
1 stop5h 52m
Sun 10/49:46 am -
2 stops9h 17m
Deal found 9/1![American Airlines logo]()
$686
Last-minute flights from Killeen to San DiegoDiscover last-minute flight deals from Killeen to San Diego. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Killeen to San Diego. Data last updated September 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/29. 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 9/1012:47 pm -
1 stop6h 59m
Mon 9/1411:15 am -
1 stop5h 30m
Deal found 8/29![American Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/254:09 pm -
1 stop7h 39m
Sun 9/277:15 am -
1 stop5h 19m
Deal found 8/31![American Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/24:09 pm -
1 stop5h 52m
Sun 10/41:50 pm -
1 stop5h 13m
Deal found 9/1![American Airlines logo]()
$474
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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $474 (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 2, 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
Quickest round-trip
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Fri 9/25
4:09 pm-9:48 pm
1 stop7h 39m
San Diego
Sun 9/27
7:15 am-2:34 pm
1 stop5h 19m
$494
KilleenSan Diego
GRK Killeen Fort Hood Regional - SAN San Diego
GRKSAN
Killeen Fort Hood Regional
Fri 10/2
4:09 pm-8:01 pm
1 stop5h 52m
San Diego
Sun 10/4
9:46 am-9:03 pm
2 stops9h 17m
$686
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.
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