Cheap flights from Montreal to Harlingen

Compare Montreal to Harlingen flight deals

Find the cheapest month or even day of the year to fly to Harlingen

Book the best Harlingen fare with no extra fees

Flight deals from Montreal to Harlingen

Looking for a cheap last-minute deal or the best round-trip flight from Montreal to Harlingen? Find the lowest prices on one-way and round-trip tickets right here.

Harlingen.$750 per passenger.Departing Fri, Oct 16, returning Sun, Oct 25.Round-trip flight with United.Outbound indirect flight with United, departing from Montreal Pierre Elliott Trudeau on Fri, Oct 16, arriving in Harlingen.Inbound indirect flight with United, departing from Harlingen on Sun, Oct 25, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $750, select.

Harlingen.$768 per passenger.Departing Thu, Jul 30, returning Mon, Aug 10.Round-trip flight with United.Outbound indirect flight with United, departing from Montreal Pierre Elliott Trudeau on Thu, Jul 30, arriving in Harlingen.Inbound indirect flight with United, departing from Harlingen on Mon, Aug 10, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $768, select.

Find the cheapest month to fly from Montreal to Harlingen

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to Harlingen flights are currently cheapest in October.

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Montreal to Harlingen: Alternative routes

Compare routes from Montreal to Harlingen below. You may find an airport to fly into that's cheaper, faster, or easier than Harlingen.

Montreal to Harlingen: Flight information

The things to know before you go.

Cheapest flight found	$750
Cheapest month to fly	October

Finding cheap flights from Montreal to Harlingen: Frequently asked questions

How much are round-trip flights from Montreal to Harlingen?

The best price we found for a round-trip flight from Montreal to Harlingen is $750. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Montreal to Harlingen?

Currently, there are no airlines that fly direct from Montreal to Harlingen. But we found flights with one stop from $750.

How many flights are there a week from Montreal to Harlingen?

There are no flights flying from Montreal to Harlingen, as of July 2026.

When is the cheapest time to fly from Montreal to Harlingen?

The cheapest month to fly from Montreal to Harlingen is usually October.

Which upcoming date is cheapest to fly from Montreal to Harlingen Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to Harlingen Airport on Friday, October 16, 2026.

Can I get a direct flight from Montreal to Harlingen Airport?

No airlines currently offer direct flights between Montreal and Harlingen Airport. Most routes have one or more stops.

How can I find the best flight deal to Harlingen?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Harlingen but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Harlingen?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Harlingen is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Montreal to Harlingen?

The cheapest airline that flies to Harlingen is United.

Traveling from Montreal to Harlingen Valley International Airport (HRL): What you need to know

Harlingen is one hour behind Montreal. Harlingen Valley International Airport is located in Harlingen, which is in the UTC-6 timezone.
Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Show up at the airport on time to catch your flight from Montreal to HRL.
You'll likely experience bigger queues in popular months such as July and other peak seasons. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a good idea.

Airports in Montreal

Montreal-Trudeau International Airport (YUL)

Located around 19 kilometers from central Montreal, YUL can be reached in about 25 minutes by car, depending on traffic. The journey on public transport will take roughly 45 minutes.
In search of a convenient hotel near Montreal-Trudeau International Airport? If you're catching an early flight from Montreal to Harlingen Valley International Airport, these accommodation options will have you sleeping moments from check-in:
65% of flights departing from Montreal-Trudeau International Airport make it to their destination on schedule.
YUL's address is 975 Romeo Vachon Street North.

Montreal Metropolitan Airport (YHU)

You can reach YHU from the center of Montreal in approximately 25 minutes by car (depending on traffic conditions). The ride by public transport will take roughly 1 hour to travel the 23 kilometers or so.
Catching the earliest flight? Think about staying at one of these hotels near Montreal Metropolitan Airport the day before your Montreal to HRL flight:

About Harlingen Valley International Airport (HRL)

The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from Montreal to Harlingen Valley International Airport. Make yourself comfy at one of these accommodation options near HRL instead:
HRL is located at 3002 Heritage Way.

Getting from Harlingen Valley International Airport (HRL) to central Harlingen

From Harlingen Valley International Airport, central Harlingen is around 8 kilometers away. It takes about 10 minutes to reach the city center by car.
If you're using public transport, expect a journey of about 30 minutes.

How to find the cheapest flights from Montreal to Harlingen Valley International Airport (HRL)

Currently, $236 is the lowest price we've found for a one-way ticket from Montreal to Harlingen Valley International Airport. The cheapest price for a return flight is $750. Keep in mind fares can change due to demand at the time of booking.
To pick up cheap flights from Montreal to HRL, book in advance. Airlines generally offer the most competitive fares when flights first go on sale.
Cheap Montreal to Harlingen Valley International Airport tickets are easier to find if you're not locked into specific dates. Use the 'Whole month' tool to compare fares across each month and then fly out on the cheapest day.
Save time looking for cheap plane tickets from Montreal to HRL by creating a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.
Tailor your flights using filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Montreal to Harlingen Valley International Airport.

The best time to fly from Montreal to Harlingen Valley International Airport (HRL)

September is the quietest month for flights from Montreal to Harlingen Valley International Airport (HRL), while March is the busiest. Choose the ideal time to go to Harlingen based on whether you prefer a lively atmosphere or a more laid-back vibe.
Lock in a Montreal to HRL plane ticket departing in August if you're eager to explore the city during its warmest month. You can expect temperatures in Harlingen to range from 25ºC (77ºF) to 37ºC (99ºF).
If you want cooler conditions, look for a cheap ticket from Montreal to Harlingen Valley International Airport in January when temperatures are between 10ºC (50ºF) and 25ºC (77ºF).

More about Harlingen

Start your Harlingen trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Montreal to Harlingen Valley International Airport, explore our selection of hotels including:
Your trip to Harlingen wouldn't be complete without a bit of sightseeing. Leading attractions that are worth your time include Harlingen Arts & Heritage Museum, Rio Grande Valley Birding Festival and Iwo Jima Memorial & Museum.

Explore more of the United States

Harlingen will leave a lasting impression, but there are so many other corners of the United States you should also see. About 177 kilometers north of Harlingen, a visit to Corpus Christi will keep you on the go. Start with leading attractions like USS LEXINGTON, Texas State Aquarium and Bayfront Park.
Around 225 kilometers northwest of Harlingen, Laredo is another essential stop in the United States. Experience this destination's highlights firsthand at San Francisco Javier Park, San Augustin Plaza and Fort McIntosh.