SAN - HRL

$115 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 4/21. 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
$339
Typical prices: $630-$491
United Airlines
Tue 5/5Wed 5/6
SAN - HRL • 1 stop
Cheapest one-way
$115
Typical prices: $219-$273
Southwest
Tue 4/21
SAN - HRL • 1 stop
Top airlines
United Airlines
Cheapest • from $339 (round-trip)
Southwest
Best reviews • 8.0 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
Austin (AUS)
Cheapest • Avg $343 (round-trip)
Austin (AUS)
Shortest trip • 4h 45m (one-way)
Insights
Insights
Insights
Insights
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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

Tue, May 5 - Wed, May 6
United Airlines Logo
10:23 am - 8:00 pm
SAN
-
HRL
7h 37m
1 stop
United Airlines Logo
7:00 am - 1:50 pm
HRL
-
SAN
8h 50m
1 stop
$339United Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
6:32 am - 9:59 pm
SAN
-
HRL
13h 27m
2 stops
United Airlines Logo
5:18 pm - 9:25 pm
HRL
-
SAN
6h 07m
1 stop
$344United Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
12:10 pm - 8:00 pm
SAN
-
HRL
5h 50m
1 stop
United Airlines Logo
12:10 pm - 5:53 pm
HRL
-
SAN
7h 43m
1 stop
$347United Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
6:32 am - 9:59 pm
SAN
-
HRL
13h 27m
2 stops
United Airlines Logo
12:10 pm - 5:53 pm
HRL
-
SAN
7h 43m
1 stop
$352United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
6:15 am - 4:04 pm
SAN
-
HRL
7h 49m
1 stop
United Airlines Logo
7:00 am - 1:50 pm
HRL
-
SAN
8h 50m
1 stop
$353United Airlines
Thu, May 28 - Mon, Jun 8
American Airlines Logo
3:10 pm - 12:14 am
SAN
-
HRL
7h 04m
1 stop
American Airlines Logo
8:04 pm - 11:59 pm
HRL
-
SAN
5h 55m
1 stop
$354American Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
6:20 am - 4:04 pm
SAN
-
HRL
7h 44m
2 stops
United Airlines Logo
12:10 pm - 12:28 am
HRL
-
SAN
14h 18m
2 stops
$357United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
8:54 am - 9:59 pm
SAN
-
HRL
11h 05m
2 stops
United Airlines Logo
5:18 pm - 9:25 pm
HRL
-
SAN
6h 07m
1 stop
$358United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
11:00 am - 9:59 pm
SAN
-
HRL
8h 59m
2 stops
United Airlines Logo
7:00 am - 5:19 pm
HRL
-
SAN
12h 19m
2 stops
$364United Airlines
Thu, May 28 - Mon, Jun 8
United Airlines Logo
10:13 am - 7:49 pm
SAN
-
HRL
7h 36m
1 stop
United Airlines Logo
5:20 pm - 11:54 pm
HRL
-
SAN
8h 34m
2 stops
$368United Airlines
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.

How much is a round-trip flight from San Diego to Harlingen, Texas?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to Harlingen, Texas departing in May.
Find deals

Good to know

Low seasonMarch
Cheapest flight$115
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 25% 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 3 days, the lowest price for a flight from San Diego to Harlingen was $115 for a one-way ticket and $339 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.

  • Which airline alliances offer flights from San Diego to Harlingen?

    oneworld is the only airline alliance operating flights between San Diego and Harlingen.

  • Which is the best airline for flights from San Diego to Harlingen, Southwest or American Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Harlingen are Southwest and American Airlines. With an average price for the route of $388 and an overall rating of 8.0, Southwest is the most popular choice. American Airlines is also a great choice for the route, with an average price of $355 and an overall rating of 7.1.

  • 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 airlines 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.
8.0
SouthwestOverall score based on 4333 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
Airline reviews

I elected to pay for the upgrades and found very little difference

6.0 GoodChris, Mar 2026
DAL - SAT
Read more Southwest reviews

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

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.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The flight attendant in business class was excellent! Professional, friendly and attentive.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

They put me on an earlier and I got home sooner

Not good. One of my luggage is missing. And until now they can’t find it

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

Where do I start!! I was delayed with my flight from Dallas to Tampa. On the way back from Tampa to Dallas the flight was delayed over 4 hours+. I was put on another flight that was also delayed but not as long. Traveling on American Airlines is becoming exhausing.

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

The flight attendants and the service is getting worse by the day.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

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

Information on your arrival and departure airports

San Diego (SAN)
Harlingen (HRL)