$159+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — HRL
Sep 29 — Oct 61
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 August 30, 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 August 30, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 am -
1 stop5h 50m
Wed 9/307:25 am -
1 stop7h 00m
Deal found 8/26![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 8/28. 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 10/307:20 am -
1 stop7h 03m
Sun 11/12:13 pm -
1 stop6h 32m
Deal found 8/28![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 8/29. 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 11/66:45 am -
1 stop5h 20m
Sat 11/143:50 pm -
1 stop5h 20m
Deal found 8/29![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:40 am -
1 stop6h 40m
Sun 9/136:00 am -
1 stop7h 15m
Deal found 8/26![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:05 pm -
1 stop7h 34m
Sat 9/125:05 am -
1 stop5h 41m
Deal found 8/28![United Airlines logo]()
$397
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 August 30, 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 August 30, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 am -
1 stop5h 50m
Wed 9/307:25 am -
1 stop7h 00m
Deal found 8/26![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 8/28. 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 10/307:20 am -
1 stop7h 03m
Sun 11/12:13 pm -
1 stop6h 32m
Deal found 8/28![Delta logo]()
$353
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:04 pm -
1 stop7h 48m
Wed 9/165:05 am -
1 stop5h 40m
Deal found 8/25![United Airlines logo]()
$434
This Southwest deal was found by Cheapflights users on 8/29. 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 11/66:45 am -
1 stop5h 20m
Sat 11/143:50 pm -
1 stop5h 20m
Deal found 8/29![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 8/28. 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 9/147:10 am -
1 stop5h 10m
Thu 9/176:20 am -
2 stops7h 40m
Deal found 8/28![Southwest logo]()
$434
Last-minute flights from Baltimore to HarlingenDiscover last-minute flight deals from Baltimore to Harlingen. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Harlingen. Data last updated August 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:05 pm -
1 stop7h 34m
Sat 9/125:05 am -
1 stop5h 41m
Deal found 8/28![United Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/28. 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 9/82:50 pm -
2 stops8h 00m
Sat 9/1212:35 pm -
1 stop6h 50m
Deal found 8/28![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:50 pm -
1 stop8h 25m
Sun 9/136:00 am -
1 stop7h 15m
Deal found 8/26![Southwest logo]()
$436
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:40 am -
1 stop6h 40m
Sun 9/136:00 am -
1 stop7h 15m
Deal found 8/26![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:04 pm -
1 stop7h 48m
Wed 9/165:05 am -
1 stop5h 40m
Deal found 8/26![United Airlines logo]()
$434
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 am -
1 stop5h 50m
Wed 9/307:25 am -
1 stop7h 00m
Deal found 8/26![Southwest logo]()
$317
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 August 30, 2026.
Search for one-way flight options from Baltimore to Harlingen. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:20 pm -
1 stop6h 05m
Deal found 8/26![Southwest logo]()
$159
This United Airlines deal was found by Cheapflights users on 8/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:04 pm -
1 stop7h 48m
Deal found 8/27![United Airlines logo]()
$176
This Southwest deal was found by Cheapflights users on 8/25. 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 9/187:10 am -
1 stop5h 10m
Deal found 8/25![Southwest logo]()
$200
This Southwest deal was found by Cheapflights users on 8/27. 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 9/63:40 pm -
2 stops6h 55m
Deal found 8/27![Southwest logo]()
$220
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Fri 1/111:47 am -
1 stop7h 04m
Deal found 8/29![American Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 8/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/112:05 pm -
2 stops10h 54m
Deal found 8/29![United Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 8/27. 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 9/77:10 am -
1 stop5h 10m
Deal found 8/27![Southwest logo]()
$260
This Southwest deal was found by Cheapflights users on 8/29. 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 1/26:05 am -
1 stop7h 10m
Deal found 8/29![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 8/29. 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 12/237:50 am -
1 stop10h 20m
Deal found 8/29![Southwest logo]()
$274
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 August 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (Southwest) |
One-way from | $159 (Southwest) |
Popular in | May |
Cheapest in | September |
Average price | $473 |
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 7,457,451 searches. Data last updated August 30, 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
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Wed 9/23
11:00 am-3:50 pm
1 stop5h 50m
Harlingen Valley Intl
Wed 9/30
7:25 am-3:25 pm
1 stop7h 00m
$317
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Fri 10/30
7:20 am-1:23 pm
1 stop7h 03m
Harlingen Valley Intl
Sun 11/1
2:13 pm-9:45 pm
1 stop6h 32m
$353
Quickest round-trip
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Fri 11/6
6:45 am-11:05 am
1 stop5h 20m
Harlingen Valley Intl
Sat 11/14
3:50 pm-10:10 pm
1 stop5h 20m
$355
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Sat 9/12
3:04 pm-9:52 pm
1 stop7h 48m
Harlingen Valley Intl
Wed 9/16
5:05 am-11:45 am
1 stop5h 40m
$434
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Mon 9/14
7:10 am-11:20 am
1 stop5h 10m
Harlingen Valley Intl
Thu 9/17
6:20 am-3:00 pm
2 stops7h 40m
$434
Cheapest one-way
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Sat 10/10
2:20 pm-7:25 pm
1 stop6h 05m
$159
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Sun 9/6
3:04 pm-9:52 pm
1 stop7h 48m
$176
Quickest one-way
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Fri 9/18
7:10 am-11:20 am
1 stop5h 10m
$200
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Fri 1/1
12:05 pm-9:59 pm
2 stops10h 54m
$235
BaltimoreHarlingen
BWI Baltimore/Washington - HRL Harlingen Valley Intl
BWIHRL
Baltimore/Washington
Fri 9/18
1:05 pm-7:39 pm
1 stop7h 34m
$265
Showing 1-10 of 12 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 August.
| 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.
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 August 30, 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.
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Harlingen flight routes
Other flight options
Popular flights
Alternative routes for Baltimore to Harlingen
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Harlingen by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to Harlingen by cabin class
Find flights from Baltimore to Harlingen, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 August 30, 2026.
Baltimore and Harlingen flights
Browse other Baltimore and Harlingen flight options. Last updated on August 30, 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 7,457,451 searches. Data last updated August 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$286 | Average$366 | FlexibilityNo cancel fee | On-time63% |