BWI - HRL

$168 Find Cheap Flights from Baltimore 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 Baltimore to Harlingen departing on 9/3. 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 Baltimore 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 Baltimore to Harlingen, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$307
Typical prices: $320-$284
Southwest
Wed 7/8Wed 7/15
BWI - HRL • 1 stop
Cheapest one-way
$168
United Airlines
Thu 9/3
BWI - HRL • 1 stop
Top airlines
Southwest
Cheapest • from $307 (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 Baltimore and Harlingen. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Houston (IAH)
Cheapest • Avg $319 (round-trip)
Houston (HOU)
Shortest trip • 5h 46m (one-way)
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 100% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Baltimore to Harlingen (BWI-HRL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore 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 Baltimore to Harlingen

Wed, Jul 8 - Wed, Jul 15
Southwest Logo
8:10 am - 1:30 pm
BWI
-
HRL
6h 20m
1 stop
Southwest Logo
2:10 pm - 8:30 pm
HRL
-
BWI
5h 20m
1 stop
$307Southwest
Thu, Jul 9 - Wed, Jul 15
United Airlines Logo
3:03 pm - 9:54 pm
BWI
-
HRL
7h 51m
1 stop
United Airlines Logo
5:10 am - 11:47 am
HRL
-
BWI
5h 37m
1 stop
$310United Airlines
Wed, Jul 8 - Wed, Jul 15
Southwest Logo
8:10 am - 1:30 pm
BWI
-
HRL
6h 20m
1 stop
Southwest Logo
7:05 am - 4:35 pm
HRL
-
BWI
8h 30m
2 stops
$312Southwest
Thu, Jun 4 - Mon, Jun 8
Southwest Logo
1:00 pm - 11:40 pm
BWI
-
HRL
11h 40m
1 stop
Southwest Logo
6:30 pm - 12:35 am
HRL
-
BWI
5h 05m
1 stop
$318Southwest
Thu, May 28 - Sat, Jun 6
United Airlines Logo
8:25 am - 7:49 pm
BWI
-
HRL
12h 24m
2 stops
United Airlines Logo
7:20 am - 4:30 pm
HRL
-
BWI
8h 10m
1 stop
$333United Airlines
Sat, May 30 - Sat, Jun 6
United Airlines Logo
6:45 am - 3:59 pm
BWI
-
HRL
10h 14m
2 stops
United Airlines Logo
7:20 am - 4:30 pm
HRL
-
BWI
8h 10m
1 stop
$337United Airlines
Thu, Jun 4 - Mon, Jun 8
Southwest Logo
1:00 pm - 11:40 pm
BWI
-
HRL
11h 40m
1 stop
Southwest Logo
1:00 pm - 11:10 pm
HRL
-
BWI
9h 10m
2 stops
$340Southwest
Thu, Sep 3 - Mon, Sep 7
Southwest Logo
10:25 am - 5:15 pm
BWI
-
HRL
7h 50m
2 stops
Southwest Logo
6:20 am - 1:05 pm
HRL
-
BWI
5h 45m
1 stop
$342Southwest
Thu, Sep 3 - Mon, Sep 7
Southwest Logo
9:40 am - 4:05 pm
BWI
-
HRL
7h 25m
1 stop
Southwest Logo
6:20 am - 1:05 pm
HRL
-
BWI
5h 45m
1 stop
$343Southwest
Thu, May 28 - Sat, Jun 6
Southwest Logo
6:45 pm - 11:00 pm
BWI
-
HRL
5h 15m
1 stop
Southwest Logo
2:45 pm - 11:35 pm
HRL
-
BWI
7h 50m
1 stop
$347Southwest
Booking Insights

KAYAK's insights & trends for Baltimore to Harlingen flights

Get data-powered insights and trends into flights from Baltimore 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 Baltimore to Harlingen?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Baltimore to Harlingen departing in July.

What is the cheapest month to fly from Baltimore to Harlingen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore 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 Baltimore to Harlingen is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $501 and $483 respectively.

Find deals

Good to know

Low seasonJuly
Cheapest flight$168
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Baltimore to Harlingen

When to book flights from Baltimore to Harlingen

Are your dates flexible? Find out the best times to travel from Baltimore 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 Baltimore to Harlingen

  • What is the cheapest flight from Baltimore to Harlingen?

    In the last 3 days, the lowest price for a flight from Baltimore to Harlingen was $168 for a one-way ticket and $307 for a round-trip.

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

    No, a passport isn't needed to fly from Baltimore to Harlingen. However, local authorities might ask for an official ID.

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

    When flying out of Baltimore you will be using Baltimore/Washington. You will be landing at Harlingen, also known as Harlingen Valley Intl.

  • Which aircraft models fly most regularly from Baltimore to Harlingen?

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

  • How does KAYAK find such low prices on flights from Baltimore 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 Baltimore to Harlingen.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Baltimore 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 Baltimore 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 Baltimore with another airline. Booking your flights between Baltimore 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 Baltimore 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 Baltimore 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 Baltimore to Harlingen

 
See real verified KAYAK customer reviews for airlines flying from Baltimore 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 Baltimore 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 4310 reviews
8.6Crew
8.1Boarding
7.0Food
7.5Entertainment
8.0Comfort
Airline reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

4.0 OkayDavid, Apr 2026
COS - DAL
Read more Southwest reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

The seat was not comfortable. 1D. My back was sore all night and the next day.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

One of the best airlines for fast boarding, on time arrivals, and top notch service!

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

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 ?

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

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.

Everything you need to know for your flight from Baltimore to Harlingen

Information on your arrival and departure airports

Baltimore (BWI)
Harlingen (HRL)