Which city has the cheapest flights to Harlingen?

Based on fares booked in the past 5 days, the cheapest flights to Harlingen are from Montreal, starting at C$ 651 round-trip, and from Toronto, starting at C$ 741 round-trip.

How do I know if a flight to Harlingen is a good deal?

A good deal on a flight to Harlingen is around C$ 881 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

What is the cheapest flight to Harlingen?

Montreal Pierre Elliott Trudeau Intl Airport to Harlingen is the cheapest route at C$ 651 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Harlingen?

On average, a round-trip flight from Canada to Harlingen costs C$ 1,012, based on KAYAK data over the past 12 months. Round-trip fares from Montreal average C$ 881, while Toronto runs a bit higher at C$ 899.

What is the cheapest day to fly to Harlingen?

Tuesday is the cheapest day to fly to Harlingen at C$ 868 round-trip on average over the past 12 months on KAYAK. Saturday is the most expensive at C$ 1,214.

What is the cheapest time of day to fly to Harlingen?

Morning flights to Harlingen are the cheapest at C$ 967 round-trip on average. Night flights are the most expensive at C$ 1,333.

What is a good deal for flights to Harlingen?

Flights under C$ 881 are considered a good deal. 25% of KAYAK users found round-trip flights to Harlingen at or below these prices, with the lowest fares from: •Montreal C$ 589.

What are the most popular airlines flying to Harlingen?

American Airlines is the most popular airline flying to Harlingen among KAYAK users, followed by WestJet and Air Canada.

C$ 368 CHEAP FLIGHTS to Harlingen in 2026/27

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

C$ 651

Typical prices: C$ 881-C$ 1,233

United Airlines

Tue 13/2Tue 20/2

YUL - HRL • 2 stops

Cheapest one-way flights

C$ 368

Typical prices: C$ 388-C$ 582

American Airlines

Wed 14/11

YYZ - HRL • 1 stop

Top airlines

Delta

Best reviews • 7.8 score

Airline reviews

Top routes

YMQ - HRL

Cheapest • 9% average savings

YWG - HRL

Most popular

Insights

When to travel

February

Cheapest • 37% price drop

December

Most popular

Good to know

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you enjoy your trip to Harlingen!

Flight Deals

Cheap Flights to Harlingen

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

All Flight Deals

Recent round-trip flight deals to Harlingen

Sat, 13 Feb - Sat, 20 Feb

6:10 a.m. - 7:29 p.m.YUL Montreal Pierre Elliott Trudeau Intl-HRL Harlingen Valley Intl

14h 19m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

4:24 p.m. - 1:51 p.m.HRL Harlingen Valley Intl-YUL Montreal Pierre Elliott Trudeau Intl

20h 27m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 651United Airlines

Sat, 27 Feb - Tue, 2 Mar

7:45 a.m. - 1:19 p.m.YYC Calgary-HRL Harlingen Valley Intl

5h 34m1 stop Dallas/Fort Worth

5:50 a.m. - 2:10 p.m.HRL Harlingen Valley Intl-YYC Calgary

8h 20m1 stop Dallas/Fort Worth

C$ 722American Airlines

Mon, 16 Nov - Wed, 18 Nov

7:44 p.m. - 4:01 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

21h 17m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

5:05 a.m. - 5:49 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

11h 44m2 stops Houston George Bush Intcntl Newark

C$ 741United Airlines

Thu, 22 Oct - Thu, 29 Oct

10:45 a.m. - 9:52 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

12h 07m2 stops Denver Intl Houston George Bush Intcntl

5:05 a.m. - 9:15 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

15h 10m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 742United Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 7:47 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

14h 37m1 stop Houston George Bush Intcntl

5:05 a.m. - 4:47 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

10h 42m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 779United Airlines

Mon, 16 Nov - Wed, 18 Nov

3:45 p.m. - 10:48 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

8h 03m1 stop Houston George Bush Intcntl

5:05 a.m. - 10:37 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

16h 32m1 stop Houston George Bush Intcntl

C$ 781United Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 1:21 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

8h 11m1 stop Houston George Bush Intcntl

5:05 a.m. - 2:17 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

8h 12m1 stop Houston George Bush Intcntl

C$ 815United Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 1:21 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

8h 11m1 stop Houston George Bush Intcntl

5:05 a.m. - 2:17 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

8h 12m1 stop Houston George Bush Intcntl

C$ 816United Airlines

Sat, 27 Feb - Tue, 2 Mar

7:45 a.m. - 1:19 p.m.YYC Calgary-HRL Harlingen Valley Intl

5h 34m1 stop Dallas/Fort Worth

6:41 p.m. - 2:24 p.m.HRL Harlingen Valley Intl-YYC Calgary

19h 43m2 stops Dallas/Fort Worth Chicago O'Hare Intl

C$ 826American Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 7:47 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

14h 37m1 stop Houston George Bush Intcntl

5:05 a.m. - 4:47 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

10h 42m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 841United Airlines

All round-trip flight deals to Harlingen

Sat, 13 Feb - Sat, 20 Feb

6:10 a.m. - 7:29 p.m.YUL Montreal Pierre Elliott Trudeau Intl-HRL Harlingen Valley Intl

14h 19m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

4:24 p.m. - 1:51 p.m.HRL Harlingen Valley Intl-YUL Montreal Pierre Elliott Trudeau Intl

20h 27m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 651United Airlines

Sat, 27 Feb - Tue, 2 Mar

7:45 a.m. - 1:19 p.m.YYC Calgary-HRL Harlingen Valley Intl

5h 34m1 stop Dallas/Fort Worth

5:50 a.m. - 2:10 p.m.HRL Harlingen Valley Intl-YYC Calgary

8h 20m1 stop Dallas/Fort Worth

C$ 722American Airlines

Mon, 16 Nov - Wed, 18 Nov

7:44 p.m. - 4:01 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

21h 17m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

5:05 a.m. - 5:49 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

11h 44m2 stops Houston George Bush Intcntl Newark

C$ 741United Airlines

Thu, 22 Oct - Thu, 29 Oct

10:45 a.m. - 9:52 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

12h 07m2 stops Denver Intl Houston George Bush Intcntl

5:05 a.m. - 9:15 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

15h 10m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 742United Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 7:47 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

14h 37m1 stop Houston George Bush Intcntl

5:05 a.m. - 4:47 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

10h 42m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 779United Airlines

Mon, 16 Nov - Wed, 18 Nov

3:45 p.m. - 10:48 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

8h 03m1 stop Houston George Bush Intcntl

5:05 a.m. - 10:37 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

16h 32m1 stop Houston George Bush Intcntl

C$ 781United Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 1:21 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

8h 11m1 stop Houston George Bush Intcntl

5:05 a.m. - 2:17 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

8h 12m1 stop Houston George Bush Intcntl

C$ 815United Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 1:21 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

8h 11m1 stop Houston George Bush Intcntl

5:05 a.m. - 2:17 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

8h 12m1 stop Houston George Bush Intcntl

C$ 816United Airlines

Sat, 27 Feb - Tue, 2 Mar

7:45 a.m. - 1:19 p.m.YYC Calgary-HRL Harlingen Valley Intl

5h 34m1 stop Dallas/Fort Worth

6:41 p.m. - 2:24 p.m.HRL Harlingen Valley Intl-YYC Calgary

19h 43m2 stops Dallas/Fort Worth Chicago O'Hare Intl

C$ 826American Airlines

Mon, 16 Nov - Wed, 18 Nov

6:10 a.m. - 7:47 p.m.YYZ Toronto Pearson Intl-HRL Harlingen Valley Intl

14h 37m1 stop Houston George Bush Intcntl

5:05 a.m. - 4:47 p.m.HRL Harlingen Valley Intl-YYZ Toronto Pearson Intl

10h 42m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

C$ 841United Airlines

Booking Insights

Price, demand, and travel trends for flights to Harlingen

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Harlingen?: Montreal Pierre Elliott Trudeau Intl Airport to Harlingen is the cheapest route at C$ 651 round-trip, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.
How much is a flight to Harlingen? Average and cheapest price for all round-trip flights to Harlingen from each origin found by users searching on KAYAK in the last 12 months.: On average, a round-trip flight from Canada to Harlingen costs C$ 1,012, based on KAYAK data over the past 12 months. Round-trip fares from Montreal average C$ 881, while Toronto runs a bit higher at C$ 899.
What is the cheapest day to fly to Harlingen?: Tuesday is the cheapest day to fly to Harlingen at C$ 868 round-trip on average over the past 12 months on KAYAK. Saturday is the most expensive at C$ 1,214.
What is the cheapest time of day to fly to Harlingen? Average price for all round-trip flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Morning flights to Harlingen are the cheapest at C$ 967 round-trip on average. Night flights are the most expensive at C$ 1,333.
What is a good deal for flights to Harlingen?: Flights under C$ 881 are considered a good deal. 25% of KAYAK users found round-trip flights to Harlingen at or below these prices, with the lowest fares from:
•Montreal C$ 589.

Find deals

Low season	June
High season	December
Cheapest flight	C$ 368

Beat the crowds with an average 87% drop in traveller numbers.

The most popular month to fly with an average 21% increase in traveller numbers.

One-way flight from Toronto Pearson Intl Airport to Harlingen

When to book flights to Harlingen

Are your dates flexible? Find out the best times to travel 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. The information is for flights to Harlingen based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How do I know if a flight to Harlingen is a good deal?
A good deal on a flight to Harlingen is around C$ 881 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
Which city has the cheapest flights to Harlingen?
Based on fares booked in the past 5 days, the cheapest flights to Harlingen are from Montreal, starting at C$ 651 round-trip, and from Toronto, starting at C$ 741 round-trip.

For flights to Harlingen, a good round-trip fare is around C$ 881. If you find a fare below that, you're getting a strong deal.
If your travel dates are flexible, consider flying to Harlingen in February. Round-trip fares historically average C$ 637, making February the cheapest month to travel based on KAYAK data from the last 12 months.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat selection costs on budget carriers.
• Verify whether you need any travel documents beyond an ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.
Shift your departure to morning to save up to C$ 366 per round-trip. Morning flights to Harlingen average C$ 967 compared to C$ 1,333 for evening flights.