$119+ Cheap flights from Harlingen to San Francisco (HRL - SFO)
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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SFO
May 29 — Jun 51
Round-trip
1 adult, Economy
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Cheapest flights from Harlingen to San FranciscoExplore the most affordable flight options available from Harlingen to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Harlingen to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This American Airlines deal was found by Cheapflights users on 4/28. 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 7/248:04 pm
HRL
- SFO
1 stop6h 39m
American Airlines
Tue 7/288:15 am
SFO
- HRL
2 stops9h 57m
American Airlines
Deal found 4/28![American Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 4/28. 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 8/183:17 pm
HRL
- SFO
1 stop9h 01m
American Airlines
Thu 8/205:30 am
SFO
- HRL
1 stop8h 58m
American Airlines
Deal found 4/28![American Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 4/28. 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 8/255:16 pm
HRL
- SFO
1 stop9h 00m
United Airlines
Wed 8/267:05 am
SFO
- HRL
1 stop6h 29m
United Airlines
Deal found 4/28![United Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/75:18 pm
HRL
- SFO
1 stop8h 41m
United Airlines
Sun 5/1012:35 pm
SFO
- HRL
1 stop7h 24m
United Airlines
Deal found 4/28![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/127:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Fri 5/1512:45 am
SFO
- HRL
1 stop8h 38m
United Airlines
Deal found 4/27![United Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/126:00 am
HRL
- SFO
2 stops8h 22m
American Airlines
Fri 5/1512:59 am
SFO
- HRL
1 stop7h 18m
American Airlines
Deal found 4/27![American Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 4/28. 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 8/187:25 am
HRL
- SFO
2 stops7h 50m
Southwest
Thu 8/207:00 am
SFO
- HRL
2 stops11h 30m
Southwest
Deal found 4/28![Southwest logo]()
$368
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/710:47 am
HRL
- SFO
2 stops10h 33m
American Airlines
Sun 5/1011:59 pm
SFO
- HRL
1 stop8h 18m
American Airlines
Deal found 4/28![American Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 4/28. 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 7/245:40 pm
HRL
- SFO
2 stops9h 10m
Southwest
Tue 7/285:00 am
SFO
- HRL
2 stops9h 15m
Southwest
Deal found 4/28![Southwest logo]()
$379
This Southwest deal was found by Cheapflights users on 4/24. 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 8/66:20 am
HRL
- SFO
1 stop7h 15m
Southwest
Mon 8/1010:00 am
SFO
- HRL
1 stop8h 30m
Southwest
Deal found 4/24![Southwest logo]()
$384
This United Airlines deal was found by Cheapflights users on 4/26. 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 8/115:15 am
HRL
- SFO
1 stop8h 59m
United Airlines
Wed 8/127:05 am
SFO
- HRL
1 stop6h 29m
United Airlines
Deal found 4/26![United Airlines logo]()
$388
Best flights from Harlingen to San FranciscoDiscover carefully curated flight deals from Harlingen to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Harlingen to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This United Airlines deal was found by Cheapflights users on 4/28. 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 8/255:16 pm
HRL
- SFO
1 stop9h 00m
United Airlines
Wed 8/267:05 am
SFO
- HRL
1 stop6h 29m
United Airlines
Deal found 4/28![United Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/126:00 am
HRL
- SFO
2 stops8h 22m
American Airlines
Fri 5/1512:59 am
SFO
- HRL
1 stop7h 18m
American Airlines
Deal found 4/27![American Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 4/28. 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 8/187:25 am
HRL
- SFO
2 stops7h 50m
Southwest
Thu 8/207:00 am
SFO
- HRL
2 stops11h 30m
Southwest
Deal found 4/28![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/127:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Fri 5/1512:45 am
SFO
- HRL
1 stop8h 38m
United Airlines
Deal found 4/27![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 4/28. 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 7/245:40 pm
HRL
- SFO
2 stops9h 10m
Southwest
Tue 7/285:00 am
SFO
- HRL
2 stops9h 15m
Southwest
Deal found 4/28![Southwest logo]()
$379
This Southwest deal was found by Cheapflights users on 4/24. 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 8/66:20 am
HRL
- SFO
1 stop7h 15m
Southwest
Mon 8/1010:00 am
SFO
- HRL
1 stop8h 30m
Southwest
Deal found 4/24![Southwest logo]()
$384
This United Airlines deal was found by Cheapflights users on 4/26. 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 8/115:15 am
HRL
- SFO
1 stop8h 59m
United Airlines
Wed 8/127:05 am
SFO
- HRL
1 stop6h 29m
United Airlines
Deal found 4/26![United Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 4/25. 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 7/168:04 pm
HRL
- SFO
1 stop6h 37m
American Airlines
Sun 7/1911:29 pm
SFO
- HRL
1 stop8h 38m
American Airlines
Deal found 4/25![American Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/197:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Tue 5/265:00 am
SFO
- HRL
1 stop8h 59m
United Airlines
Deal found 4/25![United Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/137:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Sun 5/175:00 am
SFO
- HRL
1 stop9h 04m
United Airlines
Deal found 4/27![United Airlines logo]()
$442
Last-minute flights from Harlingen to San FranciscoDiscover last-minute flight deals from Harlingen to San Francisco. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to San Francisco. Data last updated April 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/75:18 pm
HRL
- SFO
1 stop8h 41m
United Airlines
Sun 5/1012:35 pm
SFO
- HRL
1 stop7h 24m
United Airlines
Deal found 4/28![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/710:47 am
HRL
- SFO
2 stops10h 33m
American Airlines
Sun 5/1011:59 pm
SFO
- HRL
1 stop8h 18m
American Airlines
Deal found 4/28![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/127:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Fri 5/1512:45 am
SFO
- HRL
1 stop8h 38m
United Airlines
Deal found 4/27![United Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/126:00 am
HRL
- SFO
2 stops8h 22m
American Airlines
Fri 5/1512:59 am
SFO
- HRL
1 stop7h 18m
American Airlines
Deal found 4/27![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/137:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Sun 5/175:00 am
SFO
- HRL
1 stop9h 04m
United Airlines
Deal found 4/27![United Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/155:18 pm
HRL
- SFO
1 stop7h 34m
United Airlines
Sat 5/235:00 am
SFO
- HRL
1 stop8h 59m
United Airlines
Deal found 4/25![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 4/26. 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 5/155:18 pm
HRL
- SFO
1 stop7h 34m
United Airlines
Sun 5/175:00 am
SFO
- HRL
1 stop9h 04m
United Airlines
Deal found 4/26![United Airlines logo]()
$465
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/197:00 am
HRL
- SFO
1 stop7h 18m
United Airlines
Tue 5/265:00 am
SFO
- HRL
1 stop8h 59m
United Airlines
Deal found 4/25![United Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 4/25. 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 5/1912:45 pm
HRL
- SFO
2 stops9h 10m
Southwest
Tue 5/2610:30 am
SFO
- HRL
2 stops8h 25m
Southwest
Deal found 4/25![Southwest logo]()
$433
One-way flights from Harlingen to San FranciscoSearch for one-way flight options from Harlingen to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Harlingen to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This American Airlines deal was found by Cheapflights users on 4/27. 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 7/28:04 pm
HRL
- SFO
1 stop6h 39m
American Airlines
Deal found 4/27![American Airlines logo]()
$119
This United Airlines deal was found by Cheapflights users on 4/26. 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 6/105:20 pm
HRL
- SFO
1 stop8h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$156
This American Airlines deal was found by Cheapflights users on 4/24. 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 6/278:04 pm
HRL
- SFO
1 stop6h 44m
American Airlines
Deal found 4/24![American Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 4/26. 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 6/105:00 pm
HRL
- SFO
2 stops8h 25m
Southwest
Deal found 4/26![Southwest logo]()
$189
This Southwest deal was found by Cheapflights users on 4/24. 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 6/265:35 pm
HRL
- SFO
2 stops7h 50m
Southwest
Deal found 4/24![Southwest logo]()
$190
This Southwest deal was found by Cheapflights users on 4/27. 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 7/25:15 am
HRL
- SFO
2 stops7h 55m
Southwest
Deal found 4/27![Southwest logo]()
$205
This Southwest deal was found by Cheapflights users on 4/28. 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.
Sun 6/215:40 am
HRL
- SFO
2 stops8h 05m
Southwest
Deal found 4/28![Southwest logo]()
$225
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 6/218:04 pm
HRL
- SFO
1 stop6h 44m
American Airlines
Deal found 4/28![American Airlines logo]()
$283
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/215:10 am
HRL
- SFO
1 stop6h 15m
United Airlines
Deal found 4/28![United Airlines logo]()
$440
Find flight deals from Harlingen to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to San Francisco (SFO). 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 April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $292 (American Airlines) |
One-way from | $119 (American Airlines) |
Popular in | April |
Cheapest in | September |
Average price | $613 |
Cheapflights Fare Finder
Customize your flight search to find flights from Harlingen to San Francisco 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 April 29, 2026.
Use the filters below to find and compare flights from Harlingen to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Tue 8/25
5:16 pm-12:16 am
1 stop9h 00m
San Francisco
Wed 8/26
7:05 am-3:34 pm
1 stop6h 29m
$337
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Tue 5/12
7:00 am-12:18 pm
1 stop7h 18m
San Francisco
Fri 5/15
12:45 am-11:23 am
1 stop8h 38m
$352
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Tue 5/12
6:00 am-12:22 pm
2 stops8h 22m
San Francisco
Fri 5/15
12:59 am-10:17 am
1 stop7h 18m
$359
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Tue 8/18
7:25 am-1:15 pm
2 stops7h 50m
San Francisco
Thu 8/20
7:00 am-8:30 pm
2 stops11h 30m
$368
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Fri 7/24
5:40 pm-12:50 am
2 stops9h 10m
San Francisco
Tue 7/28
5:00 am-4:15 pm
2 stops9h 15m
$379
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Thu 8/6
6:20 am-11:35 am
1 stop7h 15m
San Francisco
Mon 8/10
10:00 am-8:30 pm
1 stop8h 30m
$384
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Tue 8/11
5:15 am-12:14 pm
1 stop8h 59m
San Francisco
Wed 8/12
7:05 am-3:34 pm
1 stop6h 29m
$388
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Tue 5/19
7:00 am-12:18 pm
1 stop7h 18m
San Francisco
Tue 5/26
5:00 am-3:59 pm
1 stop8h 59m
$407
Quickest round-trip
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Thu 7/16
8:04 pm-12:41 am
1 stop6h 37m
San Francisco
Sun 7/19
11:29 pm-10:07 am
1 stop8h 38m
$438
HarlingenSan Francisco
HRL - SFO
HRLSFO
Harlingen Valley Intl
Wed 5/13
7:00 am-12:18 pm
1 stop7h 18m
San Francisco
Sun 5/17
5:00 am-4:04 pm
1 stop9h 04m
$442
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Harlingen to San Francisco
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 Francisco in April.
| 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 Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Harlingen-San Francisco 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 Francisco 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 Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Harlingen with our price prediction graph.
HRL-SFO
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 Francisco
What is the cheapest month to book a flight from Harlingen to San Francisco?
Currently, September is the cheapest month in which you can book a flight from Harlingen to San Francisco (average of $198). Flying from Harlingen to San Francisco in April is currently the most expensive (average of $613). 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.
How much does it cost to fly round-trip from Harlingen to San Francisco?
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 Francisco. Reviews last updated April 29, 2026.
Read through reviews of airlines operating flights from Harlingen to San Francisco, such as Southwest and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Harlingen to San Francisco. 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 Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Emeryville
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove
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Harlingen and San Francisco flights
Browse other Harlingen and San Francisco flight options. Last updated on April 29, 2026.
Other flights from Harlingen
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Top 2 airlines flying from Harlingen to San Francisco
Discover the top 2 airlines that operate flights from Harlingen to San Francisco. 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$432 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$160 | Average$318 | FlexibilityNo cancel fee | On-time63% |