$139+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — HRL
May 9 — May 161
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Harlingen with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Baltimore to Harlingen
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Cheapest flights from Baltimore to HarlingenExplore 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 April 9, 2026.
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 April 9, 2026.
This Southwest deal was found by Cheapflights users on 4/4. 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.
Fri 5/296:45 pm
BWI
- HRL
1 stop5h 15m
Southwest
Sun 5/316:35 pm
HRL
- BWI
1 stop5h 10m
Southwest
Deal found 4/4![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 4/8. 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.
Thu 4/235:00 pm
BWI
- HRL
2 stops7h 00m
Southwest
Mon 4/276:00 am
HRL
- BWI
2 stops8h 40m
Southwest
Deal found 4/8![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:08 am
BWI
- HRL
1 stop9h 57m
Delta
Fri 4/244:02 pm
HRL
- BWI
1 stop6h 24m
Delta
Deal found 4/5![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 4/7. 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.
Thu 7/91:50 pm
BWI
- HRL
1 stop8h 50m
Southwest
Mon 7/1310:40 am
HRL
- BWI
1 stop7h 20m
Southwest
Deal found 4/7![Southwest logo]()
$312
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Sat 8/1511:57 am
BWI
- HRL
1 stop8h 39m
American Airlines
Mon 8/174:58 pm
HRL
- BWI
1 stop5h 39m
American Airlines
Deal found 4/5![American Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 4/6. 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.
Sat 7/47:10 am
BWI
- HRL
1 stop8h 15m
Southwest
Thu 7/97:10 am
HRL
- BWI
1 stop7h 20m
Southwest
Deal found 4/6![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 4/8. 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.
Sat 5/304:15 pm
BWI
- HRL
1 stop6h 20m
Southwest
Wed 6/34:40 pm
HRL
- BWI
1 stop5h 20m
Southwest
Deal found 4/8![Southwest logo]()
$323
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:08 am
BWI
- HRL
1 stop9h 57m
Delta
Sun 5/34:02 pm
HRL
- BWI
1 stop6h 24m
Delta
Deal found 4/7![Delta logo]()
$327
Best flights from Baltimore to HarlingenDiscover carefully curated flight deals from Baltimore to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 9, 2026.
Discover carefully curated flight deals from Baltimore to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 9, 2026.
This Southwest deal was found by Cheapflights users on 4/4. 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.
Fri 5/296:45 pm
BWI
- HRL
1 stop5h 15m
Southwest
Sun 5/316:35 pm
HRL
- BWI
1 stop5h 10m
Southwest
Deal found 4/4![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 4/8. 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 6/108:10 am
BWI
- HRL
1 stop6h 20m
Southwest
Tue 6/162:10 pm
HRL
- BWI
1 stop5h 20m
Southwest
Deal found 4/8![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 4/5. 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.
Thu 7/91:50 pm
BWI
- HRL
1 stop8h 50m
Southwest
Mon 7/1310:40 am
HRL
- BWI
2 stops7h 20m
Southwest
Deal found 4/5![Southwest logo]()
$318
This Southwest deal was found by Cheapflights users on 4/4. 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 7/83:35 pm
BWI
- HRL
2 stops8h 25m
Southwest
Mon 7/1310:40 am
HRL
- BWI
1 stop7h 20m
Southwest
Deal found 4/4![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 4/6. 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.
Fri 7/249:25 am
BWI
- HRL
2 stops8h 35m
Southwest
Sat 7/255:10 pm
HRL
- BWI
1 stop6h 20m
Southwest
Deal found 4/6![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 4/7. 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.
Fri 5/810:20 am
BWI
- HRL
2 stops8h 05m
Southwest
Fri 5/156:00 am
HRL
- BWI
2 stops8h 40m
Southwest
Deal found 4/7![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 4/5. 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.
Sat 8/1512:45 pm
BWI
- HRL
2 stops9h 10m
Southwest
Mon 8/175:30 am
HRL
- BWI
2 stops7h 40m
Southwest
Deal found 4/5![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 4/5. 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.
Mon 7/66:50 am
BWI
- HRL
1 stop5h 10m
Southwest
Mon 7/1310:40 am
HRL
- BWI
2 stops7h 20m
Southwest
Deal found 4/5![Southwest logo]()
$358
This Southwest deal was found by Cheapflights users on 4/4. 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.
Fri 7/102:05 pm
BWI
- HRL
2 stops8h 35m
Southwest
Mon 7/1310:40 am
HRL
- BWI
2 stops7h 20m
Southwest
Deal found 4/4![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 4/7. 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.
Sun 10/48:25 am
BWI
- HRL
1 stop7h 10m
Southwest
Sat 10/1012:30 pm
HRL
- BWI
1 stop8h 05m
Southwest
Deal found 4/7![Southwest logo]()
$377
Last-minute flights from Baltimore to HarlingenDiscover last-minute flight deals from Baltimore to Harlingen. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Harlingen. Data last updated April 9, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 4/8. 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.
Sat 4/114:15 pm
BWI
- HRL
1 stop6h 20m
Southwest
Wed 4/154:40 pm
HRL
- BWI
1 stop5h 20m
Southwest
Deal found 4/8![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:08 am
BWI
- HRL
1 stop9h 57m
Delta
Fri 4/244:02 pm
HRL
- BWI
1 stop6h 24m
Delta
Deal found 4/5![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 4/7. 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 4/229:35 am
BWI
- HRL
2 stops8h 45m
Southwest
Sun 4/266:35 pm
HRL
- BWI
1 stop5h 10m
Southwest
Deal found 4/7![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 4/8. 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.
Thu 4/235:00 pm
BWI
- HRL
2 stops7h 00m
Southwest
Mon 4/276:00 am
HRL
- BWI
2 stops8h 40m
Southwest
Deal found 4/8![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:08 am
BWI
- HRL
1 stop9h 57m
Delta
Sun 5/34:02 pm
HRL
- BWI
1 stop6h 24m
Delta
Deal found 4/7![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 4/7. 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.
Fri 5/83:05 pm
BWI
- HRL
1 stop6h 30m
Southwest
Fri 5/155:00 pm
HRL
- BWI
1 stop5h 30m
Southwest
Deal found 4/7![Southwest logo]()
$333
This Southwest deal was found by Cheapflights users on 4/4. 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.
Fri 5/296:45 pm
BWI
- HRL
1 stop5h 15m
Southwest
Sun 5/316:35 pm
HRL
- BWI
1 stop5h 10m
Southwest
Deal found 4/4![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 4/8. 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.
Sat 5/304:15 pm
BWI
- HRL
1 stop6h 20m
Southwest
Wed 6/34:40 pm
HRL
- BWI
1 stop5h 20m
Southwest
Deal found 4/8![Southwest logo]()
$323
One-way flights from Baltimore to HarlingenSearch for one-way flight options from Baltimore to Harlingen. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
Search for one-way flight options from Baltimore to Harlingen. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
This Southwest deal was found by Cheapflights users on 4/7. 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.
Tue 4/2811:20 am
BWI
- HRL
1 stop7h 00m
Southwest
Deal found 4/7![Southwest logo]()
$139
This Southwest deal was found by Cheapflights users on 4/6. 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.
Mon 5/1110:20 am
BWI
- HRL
2 stops13h 40m
Southwest
Deal found 4/6![Southwest logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:49 pm
BWI
- HRL
3 stops42h 00m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$222
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 April 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (Southwest) |
One-way from | $139 (Southwest) |
Popular in | December |
Cheapest in | April |
Average price | $242 |
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 April 9, 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
Cheapest round-trip
Quickest round-trip
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Fri 5/29
6:45 pm-11:00 pm
1 stop5h 15m
Harlingen Valley Intl
Sun 5/31
6:35 pm-12:45 am
1 stop5h 10m
$277
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Wed 6/10
8:10 am-1:30 pm
1 stop6h 20m
Harlingen Valley Intl
Tue 6/16
2:10 pm-8:30 pm
1 stop5h 20m
$277
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Thu 7/9
1:50 pm-9:40 pm
1 stop8h 50m
Harlingen Valley Intl
Mon 7/13
10:40 am-7:00 pm
2 stops7h 20m
$318
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Wed 7/8
3:35 pm-11:00 pm
2 stops8h 25m
Harlingen Valley Intl
Mon 7/13
10:40 am-7:00 pm
1 stop7h 20m
$342
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Fri 7/24
9:25 am-5:00 pm
2 stops8h 35m
Harlingen Valley Intl
Sat 7/25
5:10 pm-12:30 am
1 stop6h 20m
$342
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Fri 5/8
10:20 am-5:25 pm
2 stops8h 05m
Harlingen Valley Intl
Fri 5/15
6:00 am-3:40 pm
2 stops8h 40m
$343
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Sat 8/15
12:45 pm-8:55 pm
2 stops9h 10m
Harlingen Valley Intl
Mon 8/17
5:30 am-2:10 pm
2 stops7h 40m
$347
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Mon 7/6
6:50 am-11:00 am
1 stop5h 10m
Harlingen Valley Intl
Mon 7/13
10:40 am-7:00 pm
2 stops7h 20m
$358
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Fri 7/10
2:05 pm-9:40 pm
2 stops8h 35m
Harlingen Valley Intl
Mon 7/13
10:40 am-7:00 pm
2 stops7h 20m
$367
BaltimoreHarlingen
BWI - HRL
BWIHRL
Baltimore/Washington
Sun 10/4
8:25 am-2:35 pm
1 stop7h 10m
Harlingen Valley Intl
Sat 10/10
12:30 pm-9:35 pm
1 stop8h 05m
$377
Showing 1-10 of 14 resultsSorted 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BWI-HRL
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
What is the cheapest month to book a flight from Baltimore to Harlingen?
Currently, April is the cheapest month in which you can book a flight from Baltimore to Harlingen (average of $236). Flying from Baltimore to Harlingen in November is currently the most expensive (average of $408). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
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 April 9, 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.
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
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.
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Complete your trip
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Other flights to Harlingen
Explore flights to Harlingen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 9, 2026.
Baltimore and Harlingen flights
Browse other Baltimore and Harlingen flight options. Last updated on April 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 April 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$266 | Average$343 | FlexibilityNo cancel fee | On-time63% |