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$143+ Cheap flights from Baltimore to Harlingen (BWI - HRL)

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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — HRL
Jun 27 — Jul 41
Sat 6/27
Sat 7/4
1 adult, Economy
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Cheap flight deals from Baltimore to Harlingen

Cheapest flights from Baltimore to Harlingen
Explore the most affordable flight options available from Baltimore to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 28, 2026.

This American Airlines deal was found by Cheapflights users on 5/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:24 am
BWI
-
HRL
2 stops8h 03m
American Airlines
Mon 8/313:17 pm
HRL
-
BWI
1 stop7h 26m
American Airlines
Deal found 5/26$299
This Southwest deal was found by Cheapflights users on 5/24. 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.
Wed 7/298:10 am
BWI
-
HRL
1 stop6h 20m
Southwest
Sat 8/15:10 pm
HRL
-
BWI
1 stop6h 25m
Southwest
Deal found 5/24$312

Find flight deals from Baltimore to Harlingen

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Harlingen (HRL). 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 May 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$312
(Southwest)

One-way from

$143
(Southwest)

Popular in

May

Cheapest in

July

Average price

$540
Provider with most accurate pricing for Baltimore/Washington-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Harlingen Valley Intl flights.
Search Deals
From Baltimore/Washington to Harlingen Valley Intl
Search Deals
One-way flight from Baltimore/Washington to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Harlingen 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 May 28, 2026.
Use the filters below to find and compare flights from Baltimore to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 7/29

8:10 am-1:30 pm

1 stop6h 20m

Harlingen Valley Intl

Sat 8/1

10:10 am-4:45 pm

1 stop5h 35m

$312
Quickest round-trip

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 6/10

8:10 am-1:30 pm

1 stop6h 20m

Harlingen Valley Intl

Sun 6/14

6:40 pm-12:35 am

1 stop4h 55m

$358

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 7/9

7:17 pm-12:05 am

1 stop5h 48m

Harlingen Valley Intl

Mon 7/13

10:45 am-12:14 am

2 stops12h 29m

$501

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 8/11

3:04 pm-9:52 pm

1 stop7h 48m

Harlingen Valley Intl

Wed 8/12

5:18 pm-1:58 pm

2 stops19h 40m

$547

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Mon 6/8

3:03 pm-7:49 pm

1 stop5h 46m

Harlingen Valley Intl

Fri 6/12

5:10 am-11:47 am

1 stop5h 37m

$558
Cheapest one-way
Quickest one-way

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 7/29

7:00 am-1:30 pm

2 stops7h 30m

$148

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sun 8/2

3:55 pm-11:55 pm

1 stop9h 00m

$180

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 8/1

2:00 pm-10:45 pm

1 stop9h 45m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/24

Sorted by cheapest first

Compare providers for flights from Baltimore to Harlingen

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 Baltimore to Harlingen in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Harlingen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Harlingen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Harlingen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Harlingen 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 Baltimore-Harlingen 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 Baltimore to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Baltimore with our price prediction graph.
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 Baltimore to Harlingen

How much does it cost to fly round-trip from Baltimore to Harlingen?

Reviews of airlines servicing Harlingen

Get insights into the airlines that provide service to Harlingen. 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 Harlingen. Reviews last updated May 28, 2026.
Read reviews from past customers who have flown Southwest from Baltimore to Harlingen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,264 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
7.9
Good
4,264 reviews
Southwest
7.9
Good
4,264 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Baltimore to Harlingen?

    Airlines like Southwest fly from Baltimore to Harlingen in about 6h 20m. The time it takes to get you to your destination can typically vary by up to . The distance from Baltimore to Harlingen is about 1506 mi.

  • What is the cheapest airline to fly from Baltimore to Harlingen round-trip?

    Our cheapest airline available from Baltimore to Harlingen is Southwest. Our recent data shows that you can find tickets from as low as $266 on this airline. You may be able to fly from Baltimore to Harlingen for 33% less than the average price by searching for this airline.

  • Can I find deals for flights from Baltimore to Harlingen that include hotel bookings?

    Yes. In addition to deals on Baltimore to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Harlingen.

  • Can I find deals for business class flights from Baltimore to Harlingen?

    Yes. Cheapflights offers flight deals from Baltimore to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Baltimore to Harlingen

Discover the top airline that operate flights from Baltimore to Harlingen. 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 May 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$266Average$343FlexibilityNo cancel feeOn-time63%

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