SAN - HRL

$109 Find Cheap Flights from San Diego to Harlingen

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Harlingen departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Harlingen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Harlingen, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Harlingen, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$245
United Airlines
Thu 9/10Sat 9/12
SAN - HRL • 1 stop
Cheapest one-way
$109
Typical prices: $182-$282
Southwest
Wed 8/5
SAN - HRL • 1 stop
Top airlines
Cheapest • from $245 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Harlingen. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $440 (round-trip)
Shortest trip • 5h 46m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Harlingen!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Harlingen (SAN-HRL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Harlingen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Harlingen

Thu, Sep 10 - Sat, Sep 12
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
United Airlines Logo
5:18 pm - 9:24 pm
HRL
-
SAN
6h 06m
1 stop
$245United Airlines
Thu, Sep 10 - Sat, Sep 12
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
United Airlines Logo
5:18 pm - 12:29 am
HRL
-
SAN
9h 11m
2 stops
$272United Airlines
Thu, Sep 10 - Sat, Sep 12
Southwest Logo
6:35 am - 4:05 pm
SAN
-
HRL
7h 30m
2 stops
Southwest Logo
12:35 pm - 6:25 pm
HRL
-
SAN
7h 50m
2 stops
$278Southwest
Wed, Aug 5 - Wed, Aug 5
Southwest Logo
6:20 am - 2:50 pm
SAN
-
HRL
6h 30m
1 stop
Southwest Logo
5:40 pm - 8:45 pm
HRL
-
SAN
5h 05m
1 stop
$304Southwest
Wed, Aug 5 - Wed, Aug 5
Southwest Logo
6:20 am - 2:50 pm
SAN
-
HRL
6h 30m
1 stop
Southwest Logo
4:25 pm - 8:55 pm
HRL
-
SAN
6h 30m
2 stops
$326Southwest
Fri, Sep 11 - Fri, Sep 18
American Airlines Logo
7:15 am - 4:58 pm
SAN
-
HRL
7h 43m
1 stop
American Airlines Logo
3:35 pm - 9:48 pm
HRL
-
SAN
8h 13m
1 stop
$329American Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
United Airlines Logo
5:18 pm - 9:25 pm
HRL
-
SAN
6h 07m
1 stop
$335United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
12:01 pm - 9:52 pm
SAN
-
HRL
7h 51m
1 stop
United Airlines Logo
7:15 am - 5:26 pm
HRL
-
SAN
12h 11m
2 stops
$340United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
6:30 am - 9:52 pm
SAN
-
HRL
13h 22m
2 stops
United Airlines Logo
1:59 pm - 7:55 pm
HRL
-
SAN
7h 56m
2 stops
$345United Airlines
Fri, Sep 11 - Fri, Sep 18
Southwest Logo
6:30 am - 5:15 pm
SAN
-
HRL
8h 45m
2 stops
Southwest Logo
5:55 pm - 9:20 pm
HRL
-
SAN
5h 25m
1 stop
$362Southwest
Booking Insights

KAYAK's insights & trends for San Diego to Harlingen flights

Get data-powered insights and trends into flights from San Diego to Harlingen to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Diego to Harlingen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Harlingen, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Harlingen is July, where tickets cost $0 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $820 and $579 respectively.

Good to know

Low seasonSeptember
Cheapest flight$109
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from San Diego to Harlingen

When to book flights from San Diego to Harlingen

Are your dates flexible? Find out the best times to travel from San Diego to Harlingen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Harlingen

  • What is the cheapest flight from San Diego to Harlingen?

    In the last 5 days, the lowest price for a flight from San Diego to Harlingen was $109 for a one-way ticket and $245 for a round-trip.

  • Do I need a passport to fly between San Diego and Harlingen?

    A passport is not required to fly from San Diego to Harlingen.

  • Which airports will I be using when flying from San Diego to Harlingen?

    When flying out of San Diego you will be using San Diego. You will be landing at Harlingen, also known as Harlingen Valley Intl.

  • Which aircraft models fly most regularly from San Diego to Harlingen?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from San Diego to Harlingen?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Harlingen.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Harlingen?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Harlingen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to San Diego with another airline. Booking your flights between San Diego and HRL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Harlingen?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Diego to Harlingen

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Harlingen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Harlingen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4243 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

8.0 ExcellentAnonymous, Apr 2026
SAN - SLC
Read more Southwest reviews

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

There was over a 9 hour delay for one thing after another. A toilet problem, they had to change the brakes, they had to refuel, three pilots times out, etc. We had to sit on the plane at the gate for over 5 hours with no air.

Unfortunately it was not a good experience. There was a rude stewardess.

No problems with the flight, my issue is with the terminal at SAN airport. I’ve never seen a dirtier, worse equipped terminal. No power plugs worked, but you could of course buy a fuel rod battery from the kiosk (seemingly the only thing that worked).

Usually reliable SWA worked out fine for my quick business trip to Phoenix.

Everything you need to know for your flight from San Diego to Harlingen

Information on your arrival and departure airports