$156+ Cheap flights from Harlingen to San Diego (HRL - SAN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SAN
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Find cheap flights from Harlingen 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
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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 Harlingen to San Diego
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Best
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Cheapest flights from Harlingen to San DiegoExplore the most affordable flight options available from Harlingen to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.
Explore the most affordable flight options available from Harlingen to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:59 pm
HRL
- SAN
1 stop5h 47m
United Airlines
Sat 8/298:00 am
SAN
- HRL
1 stop5h 59m
United Airlines
Deal found 6/1![United Airlines logo]()
$283
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:59 pm
HRL
- SAN
1 stop5h 47m
United Airlines
Sat 8/158:00 am
SAN
- HRL
1 stop5h 59m
United Airlines
Deal found 6/1![United Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 6/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:59 pm
HRL
- SAN
2 stops10h 28m
United Airlines
Wed 8/266:20 am
SAN
- HRL
2 stops7h 39m
United Airlines
Deal found 6/3![United Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 8/1210:34 am
HRL
- SAN
2 stops9h 44m
American Airlines
Sat 8/1510:57 am
SAN
- HRL
2 stops9h 57m
American Airlines
Deal found 6/1![American Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 8/1910:34 am
HRL
- SAN
2 stops9h 44m
American Airlines
Sat 8/222:23 pm
SAN
- HRL
1 stop6h 31m
American Airlines
Deal found 6/1![American Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/44:15 pm
HRL
- SAN
1 stop5h 25m
Southwest
Wed 7/86:35 am
SAN
- HRL
1 stop4h 55m
Southwest
Deal found 6/3![Southwest logo]()
$339
This American Airlines deal was found by Cheapflights users on 6/2. 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 8/295:54 am
HRL
- SAN
1 stop6h 35m
American Airlines
Mon 8/313:05 pm
SAN
- HRL
1 stop5h 49m
American Airlines
Deal found 6/2![American Airlines logo]()
$340
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 8/2610:34 am
HRL
- SAN
2 stops9h 44m
American Airlines
Sat 8/2910:57 am
SAN
- HRL
2 stops9h 57m
American Airlines
Deal found 6/1![American Airlines logo]()
$341
Best flights from Harlingen to San DiegoDiscover carefully curated flight deals from Harlingen to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 4, 2026.
Discover carefully curated flight deals from Harlingen to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 4, 2026.
This United Airlines deal was found by Cheapflights users on 6/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:59 pm
HRL
- SAN
1 stop5h 47m
United Airlines
Sat 8/298:00 am
SAN
- HRL
1 stop5h 59m
United Airlines
Deal found 6/1![United Airlines logo]()
$283
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:35 pm
HRL
- SAN
1 stop7h 45m
Southwest
Sat 9/129:10 am
SAN
- HRL
2 stops9h 45m
Southwest
Deal found 6/2![Southwest logo]()
$360
This United Airlines deal was found by Cheapflights users on 5/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:18 pm
HRL
- SAN
1 stop6h 07m
United Airlines
Tue 9/18:00 am
SAN
- HRL
1 stop5h 59m
United Airlines
Deal found 5/31![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 5/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:05 am
HRL
- SAN
1 stop7h 53m
United Airlines
Tue 9/228:45 am
SAN
- HRL
2 stops11h 07m
United Airlines
Deal found 5/30![United Airlines logo]()
$353
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:35 pm
HRL
- SAN
1 stop5h 45m
Southwest
Wed 7/86:35 am
SAN
- HRL
1 stop4h 55m
Southwest
Deal found 6/3![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 6/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:50 am
HRL
- SAN
1 stop9h 30m
Southwest
Sat 6/206:40 am
SAN
- HRL
1 stop7h 50m
Southwest
Deal found 6/1![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 5/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:10 am
HRL
- SAN
1 stop7h 41m
United Airlines
Thu 6/186:15 am
SAN
- HRL
1 stop7h 44m
United Airlines
Deal found 5/30![United Airlines logo]()
$420
Last-minute flights from Harlingen to San DiegoDiscover last-minute flight deals from Harlingen to San Diego. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to San Diego. Data last updated June 4, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 6/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:00 pm
HRL
- SAN
1 stop5h 25m
Southwest
Sat 7/46:35 am
SAN
- HRL
1 stop7h 00m
Southwest
Deal found 6/1![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:35 pm
HRL
- SAN
1 stop5h 45m
Southwest
Wed 7/86:35 am
SAN
- HRL
1 stop4h 55m
Southwest
Deal found 6/2![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 6/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:05 pm
HRL
- SAN
2 stops10h 20m
United Airlines
Thu 7/910:13 am
SAN
- HRL
1 stop7h 36m
United Airlines
Deal found 6/4![United Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/44:15 pm
HRL
- SAN
1 stop5h 25m
Southwest
Wed 7/86:35 am
SAN
- HRL
1 stop4h 55m
Southwest
Deal found 6/3![Southwest logo]()
$339
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 7/810:45 am
HRL
- SAN
2 stops9h 33m
American Airlines
Sat 7/117:15 pm
SAN
- HRL
2 stops12h 57m
American Airlines
Deal found 6/1![American Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 6/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:00 pm
HRL
- SAN
1 stop5h 25m
Southwest
Sat 7/187:20 am
SAN
- HRL
1 stop4h 45m
Southwest
Deal found 6/1![Southwest logo]()
$351
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 7/1510:45 am
HRL
- SAN
1 stop6h 54m
American Airlines
Sat 7/187:15 pm
SAN
- HRL
2 stops12h 57m
American Airlines
Deal found 6/1![American Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 7/295:22 pm
HRL
- SAN
1 stop8h 37m
American Airlines
Sat 8/17:15 pm
SAN
- HRL
2 stops12h 57m
American Airlines
Deal found 6/1![American Airlines logo]()
$385
One-way flights from Harlingen to San DiegoSearch for one-way flight options from Harlingen to San Diego. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
Search for one-way flight options from Harlingen to San Diego. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/44:15 pm
HRL
- SAN
1 stop5h 25m
Southwest
Deal found 6/2![Southwest logo]()
$156
This American Airlines deal was found by Cheapflights users on 6/3. 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 7/138:04 pm
HRL
- SAN
1 stop5h 55m
American Airlines
Deal found 6/3![American Airlines logo]()
$182
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:30 pm
HRL
- SAN
1 stop5h 25m
Southwest
Deal found 6/3![Southwest logo]()
$190
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:35 pm
HRL
- SAN
1 stop5h 45m
Southwest
Deal found 6/2![Southwest logo]()
$199
This United Airlines deal was found by Cheapflights users on 6/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:20 am
HRL
- SAN
1 stop8h 01m
United Airlines
Deal found 6/2![United Airlines logo]()
$209
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:35 pm
HRL
- SAN
2 stops7h 45m
Southwest
Deal found 6/2![Southwest logo]()
$229
This American Airlines deal was found by Cheapflights users on 6/4. 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 6/158:04 pm
HRL
- SAN
1 stop5h 55m
American Airlines
Deal found 6/4![American Airlines logo]()
$235
This deal was found by Cheapflights users on 6/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:04 pm
HRL
- SAN
1 stop5h 55m
American Airlines
Deal found 6/3![American Airlines logo]()
$254
Find flight deals from Harlingen to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) 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 June 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (United Airlines) |
One-way from | $156 (Southwest) |
Popular in | August |
Cheapest in | October |
Average price | $332 |
Cheapflights Fare Finder
Customize your flight search to find flights from Harlingen 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 June 4, 2026.
Use the filters below to find and compare flights from Harlingen to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Wed 8/26
1:59 pm-5:46 pm
1 stop5h 47m
San Diego
Sat 8/29
8:00 am-3:59 pm
1 stop5h 59m
$283
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Sat 8/29
5:18 pm-9:25 pm
1 stop6h 07m
San Diego
Tue 9/1
8:00 am-3:59 pm
1 stop5h 59m
$348
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Sat 9/19
5:05 am-10:58 am
1 stop7h 53m
San Diego
Tue 9/22
8:45 am-9:52 pm
2 stops11h 07m
$353
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Tue 9/8
12:35 pm-6:20 pm
1 stop7h 45m
San Diego
Sat 9/12
9:10 am-8:55 pm
2 stops9h 45m
$360
Quickest round-trip
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Thu 7/2
5:35 pm-9:20 pm
1 stop5h 45m
San Diego
Wed 7/8
6:35 am-1:30 pm
1 stop4h 55m
$413
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Sun 6/14
5:10 am-10:51 am
1 stop7h 41m
San Diego
Thu 6/18
6:15 am-3:59 pm
1 stop7h 44m
$420
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Wed 6/17
10:50 am-6:20 pm
1 stop9h 30m
San Diego
Sat 6/20
6:40 am-4:30 pm
1 stop7h 50m
$428
Cheapest one-way
Quickest one-way
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Sat 7/4
4:15 pm-7:40 pm
1 stop5h 25m
$156
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Mon 7/13
8:04 pm-11:59 pm
1 stop5h 55m
$182
HarlingenSan Diego
HRL - SAN
HRLSAN
Harlingen Valley Intl
Mon 7/13
6:30 pm-9:55 pm
1 stop5h 25m
$190
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Harlingen 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 Harlingen to San Diego in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Harlingen-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Harlingen-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 Harlingen-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 Harlingen to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Harlingen with our price prediction graph.
HRL-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.
Cheapflights Insights
Everything you need to know about your flight from Harlingen to San Diego
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated June 4, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Harlingen to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Harlingen 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
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Poway
Coronado
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Santee
Julian
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Harlingen and San Diego flights
Browse other Harlingen and San Diego flight options. Last updated on June 4, 2026.
Other flights from Harlingen
Browse through other flights departing from Harlingen. Flights are based on user searches made on Cheapflights and were last updated on June 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 4, 2026.
Top 3 airlines flying from Harlingen to San Diego
Discover the top 3 airlines that operate flights from Harlingen to San Diego. 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 June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$408 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$239 | Average$362 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$378 | FlexibilityNo cancel fee | On-time71% |