C$ 172+ Cheap flights from Harlingen, TX

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. 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.
HRL — YUL
11 Apr — 18 Apr1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights from Harlingen
Explore the most affordable flight options available from Harlingen. Find the lowest fares based on data from user searches, with prices last updated on 12 March 2026.

Tue 21/44:40 p.m.
HRL
-
SEA
2 stops8h 55m
Southwest
Sat 25/49:00 a.m.
SEA
-
HRL
2 stops10h 35m
Southwest
Deal found 9/3C$ 296
Sat 2/512:10 p.m.
HRL
-
SEA
2 stops13h 19m
United Airlines
Tue 5/57:00 a.m.
SEA
-
HRL
1 stop7h 04m
United Airlines
Deal found 8/3C$ 451
Tue 21/49:20 a.m.
HRL
-
SEA
3 stops16h 07m
United Airlines
Sat 25/48:45 a.m.
SEA
-
HRL
2 stops11h 14m
United Airlines
Deal found 9/3C$ 466
Sat 16/53:35 p.m.
HRL
-
SEA
2 stops8h 25m
Southwest
Mon 15/65:15 a.m.
SEA
-
HRL
2 stops9h 45m
Southwest
Deal found 8/3C$ 549
Tue 24/312:10 p.m.
HRL
-
SEA
1 stop9h 15m
United Airlines
Sat 28/38:59 a.m.
SEA
-
HRL
2 stops10h 57m
United Airlines
Deal found 9/3C$ 569
Wed 29/49:20 a.m.
HRL
-
YUL
1 stop6h 22m
United Airlines
Sat 2/56:10 a.m.
YUL
-
HRL
2 stops14h 50m
United Airlines
Deal found 8/3C$ 937
Thu 25/64:57 p.m.
HRL
-
YUL
2 stops17h 47m
American Airlines
Sat 4/73:48 p.m.
YUL
-
HRL
1 stop9h 26m
American Airlines
Deal found 9/3C$ 999
Fri 12/65:20 p.m.
HRL
-
YUL
2 stops16h 20m
United Airlines
Tue 16/66:10 a.m.
YUL
-
HRL
2 stops14h 39m
United Airlines
Deal found 9/3C$ 1,018
Thu 25/67:20 a.m.
HRL
-
YUL
2 stops13h 46m
United Airlines
Sat 4/79:45 a.m.
YUL
-
HRL
2 stops13h 09m
United Airlines
Deal found 9/3C$ 1,022

Find flights from Harlingen within your budget

 
Find flights departing from Harlingen that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 12 March 2026. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Tue 21/4

4:40 p.m.-11:35 p.m.

2 stops8h 55m

Seattle/Tacoma Intl

Sat 25/4

9:00 a.m.-9:35 p.m.

2 stops10h 35m

C$ 296

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 2/5

12:10 p.m.-1:12 a.m.

2 stops15h 02m

Seattle/Tacoma Intl

Tue 5/5

11:59 p.m.-11:23 a.m.

1 stop9h 24m

C$ 451

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Tue 21/4

9:20 a.m.-11:27 p.m.

3 stops16h 07m

Seattle/Tacoma Intl

Sat 25/4

8:45 a.m.-9:59 p.m.

2 stops11h 14m

C$ 466
Quickest round-trip

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 16/5

3:35 p.m.-10:00 p.m.

2 stops8h 25m

Seattle/Tacoma Intl

Mon 15/6

5:15 a.m.-5:00 p.m.

2 stops9h 45m

C$ 549

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Wed 29/4

7:00 a.m.-4:42 p.m.

1 stop8h 42m

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

8:40 a.m.-9:59 p.m.

2 stops14h 19m

C$ 937

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Thu 25/6

7:20 a.m.-10:06 p.m.

2 stops13h 46m

Montreal Pierre Elliott Trudeau Intl

Sat 4/7

9:45 a.m.-9:54 p.m.

2 stops13h 09m

C$ 1,001
Cheapest one-way

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Tue 19/5

4:40 p.m.-11:35 p.m.

2 stops8h 55m

C$ 244

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Tue 24/3

9:20 a.m.-7:28 p.m.

2 stops12h 08m

C$ 311

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Tue 24/3

4:04 p.m.-12:03 a.m.

2 stops9h 59m

C$ 346

HarlingenMontreal

HRL - YUL

HRLYUL

Harlingen Valley Intl

Sat 28/3

6:00 a.m.-10:56 p.m.

2 stops15h 56m

C$ 430

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/3

Showing 1-10 of 15 resultsSorted by cheapest first
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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.

Travel insights for flights from Harlingen

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Related info for your journey

Access useful and relevant information related to your journey from Harlingen. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 12 March 2026.

  • What are the most popular destinations to fly to from Harlingen, Texas?

    This month, the top selected destinations from Harlingen, Texas are Honolulu, Dallas/Fort Worth Airport, Denver. Throughout the year, Las Vegas, Dallas/Fort Worth Airport, Denver are some of the top choices made by users flying from Harlingen, Texas.

  • How does Cheapflights help users find flights from Harlingen?

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  • Why should you use Cheapflights to find cheap flight tickets from Harlingen?

    Cheapflights simply makes it quick and affordable to book flights from Harlingen by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from Harlingen with no change fees?

    Users can book flights with no change fees policies with our dedicated filters. Book flights from Harlingen flexibly with Cheapflights today.

  • Can Cheapflights notify me if prices for flights from Harlingen become cheaper?

    Yes, Cheapflights offers price alerts on flights from Harlingen so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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How does Cheapflights help users find flights from Harlingen?

Deals for flights from Harlingen are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Harlingen?

Cheapflights simply makes it quick and affordable to book flights from Harlingen by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Harlingen with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Harlingen flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Harlingen become cheaper?

Yes, Cheapflights offers price alerts on flights from Harlingen so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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