BWI - HRL

$139 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 10/7. 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

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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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, Oct 8 - Fri, Oct 17
Southwest Logo
10:30 am - 3:05 pmBWI-HRL
5h 35m1 stop
Southwest Logo
6:00 pm - 11:55 pmHRL-BWI
4h 55m1 stop
$304Southwest
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Wed, Oct 8 - Fri, Oct 17
Southwest Logo
8:10 am - 3:05 pmBWI-HRL
7h 55m2 stops
Southwest Logo
6:00 pm - 11:55 pmHRL-BWI
4h 55m1 stop
$318Southwest
Find Deal
Thu, Oct 9 - Mon, Oct 13
Southwest Logo
6:35 am - 1:45 pmBWI-HRL
8h 10m1 stop
Southwest Logo
6:00 pm - 11:55 pmHRL-BWI
4h 55m1 stop
$333Southwest
Find Deal
Thu, Oct 9 - Mon, Oct 13
Southwest Logo
6:15 am - 5:25 pmBWI-HRL
12h 10m2 stops
Southwest Logo
6:00 pm - 11:55 pmHRL-BWI
4h 55m1 stop
$368Southwest
Find Deal
Wed, Oct 8 - Fri, Oct 17
Southwest Logo
4:40 pm - 10:35 pmBWI-HRL
6h 55m2 stops
Southwest Logo
9:45 am - 9:20 pmHRL-BWI
10h 35m2 stops
$400Southwest
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Sat, Oct 18 - Sun, Oct 19
United Airlines Logo
6:00 am - 1:19 pmBWI-HRL
8h 19m1 stop
United Airlines Logo
5:00 am - 10:58 pmHRL-BWI
16h 58m1 stop
$413United Airlines
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Sat, Oct 18 - Sun, Oct 19
United Airlines Logo
10:51 am - 7:41 pmBWI-HRL
9h 50m2 stops
United Airlines Logo
7:00 am - 10:58 pmHRL-BWI
14h 58m1 stop
$458United Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
United Airlines Logo
6:00 am - 4:13 pmBWI-HRL
11h 13m1 stop
United Airlines Logo
2:05 pm - 10:58 pmHRL-BWI
7h 53m1 stop
$527United Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
7:20 pm - 12:02 amBWI-HRL
5h 42m1 stop
American Airlines Logo
5:23 am - 12:15 pmHRL-BWI
5h 52m1 stop
$669American Airlines
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Mon, Oct 13 - Mon, Oct 20
American Airlines Logo
7:20 pm - 12:02 amBWI-HRL
5h 42m1 stop
American Airlines Logo
10:06 am - 6:30 pmHRL-BWI
7h 24m2 stops
$839American Airlines
Find Deal

Everything you should know

Top airlines
Southwest
Cheapest • from $304 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 33% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$304
Overall average: $488
Southwest
Wed 10/8Fri 10/17
BWI - HRL • 1 stop
Cheapest one-way
$139
Delta
Tue 10/7
BWI - HRL • 1 stop
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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!
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.

What’s the cheapest day of the week to fly from Baltimore to Harlingen?

The average price of all round-trip flights from Baltimore to Harlingen clicked on KAYAK for each day over the last 12 months.

When flying from Baltimore to Harlingen, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Baltimore, you’ll find the best rates on Tuesdays and the most expensive ones on Wednesdays.

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 April, where tickets cost $248 (return) on average. On the other hand, the most expensive months are February and January, where the average cost of round-trip tickets is $501 and $488 respectively.

Good to know

Low seasonJuly
Cheapest flight$139
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 32% increase in price.
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 $139 for a one-way ticket and $304 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.

  • Which airline alliances offer flights from Baltimore to Harlingen?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Baltimore and Harlingen, with SkyTeam being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Baltimore to Harlingen are Southwest and American Airlines. With an average price for the route of $346 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 $378 and an overall rating of 7.2.

  • 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 airlines 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 4242 reviews
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

4.0 OkayDavid, Aug 2025BWI - DTW
Read more Southwest reviews

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

The seats were a bit cramped and worn, but otherwise okay.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

The entertainment package was vast and the selections were very current. Keep updating it was great.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

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

Information on your arrival and departure airports

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