Cheap Flights to San Carlos: San Carlos Flight Deals

View €485 flight on Sat, 27 Dec 2025Opens in a new window

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Cheap round-trip flights to San Carlos

Prices were available within the past 7 days and start at €485 for one-way flights and €725 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 23 Dec - Wed, 14 Jan
MAD
Madrid
HRL
Harlingen
€725 Return, found 23 hours ago
€725
Return
found 23 hours ago
Select American Airlines flight, departing Tue, 23 Dec from Madrid to Harlingen, returning Wed, 14 Jan, priced at €725 found 23 hours ago
British Airways
Tue, 23 Dec - Wed, 14 Jan
MAD
Madrid
MFE
McAllen
€833 Return, found 23 hours ago
€833
Return
found 23 hours ago
Select British Airways flight, departing Tue, 23 Dec from Madrid to McAllen, returning Wed, 14 Jan, priced at €833 found 23 hours ago
Aer Lingus
Tue, 23 Dec - Wed, 14 Jan
MAD
Madrid
MFE
McAllen
€874 Return, found 23 hours ago
€874
Return
found 23 hours ago
Select Aer Lingus flight, departing Tue, 23 Dec from Madrid to McAllen, returning Wed, 14 Jan, priced at €874 found 23 hours ago
Delta
Tue, 23 Dec - Wed, 14 Jan
MAD
Madrid
MFE
McAllen
€884 Return, found 23 hours ago
€884
Return
found 23 hours ago
Select Delta flight, departing Tue, 23 Dec from Madrid to McAllen, returning Wed, 14 Jan, priced at €884 found 23 hours ago
United
Tue, 23 Dec - Wed, 14 Jan
MAD
Madrid
MFE
McAllen
€884 Return, found 23 hours ago
€884
Return
found 23 hours ago
Select United flight, departing Tue, 23 Dec from Madrid to McAllen, returning Wed, 14 Jan, priced at €884 found 23 hours ago

Find the cheapest month to fly from Columbus (CMH) to McAllen (MFE)

November is typically the cheapest month to fly

From €184 - €522 per traveller.

Frequently asked questions

What is the name of San Carlos' airport?
San Carlos has only one airport, Valley Intl. Airport (HRL).
How far is HRL from central San Carlos?
The journey from Valley Intl. Airport to downtown San Carlos is reasonably long. You'll need to travel 40 kilometres before you can drop your bags at your hotel in the city.
What airport is best to fly into San Carlos?
With only one major airport in San Carlos, it won't take very long to get your hands on the best flight. You'll be jetting off to Valley Intl. Airport, which is located around 40 kilometres from the centre of town.
How many airlines fly to San Carlos?
There are 6 air carriers that jet into San Carlos from 6 worldwide airports.
Which airlines fly to San Carlos?
Most of the flights heading into San Carlos are operated by United Airlines. The most well-known route takes off from Houston, and United Airlines flies this route the most frequently.
How many nonstop flights are there to San Carlos?
Arranging an amazing San Carlos getaway is simple when there are 119 nonstop flights every week to get you there.
Where are the most popular flights to San Carlos departing from?
The most popular flights to San Carlos depart from Houston, Dallas and Austin airports.
How long is the flight to San Carlos Airport?
If you're going to San Carlos from Houston, you're looking at a flight duration of 1 hour and 18 minutes. Those departing from Dallas can expect to be travelling for 1 hour and 35 minutes. From Austin it's about 1 hour and 13 minutes away.
How to book the cheapest flight to San Carlos?
If you want to save some cash on your trip to San Carlos, then listen up! As every experienced jet-setter knows, don't book at the very last minute. Fares are often highest close to the departure date. Also, shop around and compare your options. If your destination has multiple airports, you may be able to score a great deal by flying into one that's further away. Finally, be ready to secure your seat quickly if you stumble on a great deal. It might not be available for too long. With a bit of know-how and some luck, the perfect airfare can be yours.
Do you have any tips for my flight to San Carlos?
Depending on where you're coming from, your flight to San Carlos could be no sweat at all or it could go on forever. We've pulled together some useful travel tips that will help you start your next great escape on the right foot. What to pack in your hand luggage:

  • Travelling on a plane can be a stress-free experience if you take the right things. First things first, you'll need toiletry items, such as deodorant, toothpaste and a toothbrush, a spare pair of socks and a good read. Next, find a spot in your carry-on bag for your mobile phone, a charger, your medications and maybe a quality neck pillow too. Last, but definitely not least, be sure to bring your passport, travel documents and some money.

Do not pack the following items in your hand luggage:

  • Put all your full-sized bottles of shampoo and hairspray in your checked baggage. Any liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated. Pointed or sharp objects, like your precious Swiss Army knife, and products which are flammable or explosive, such as aerosol cans, flares and poisons, are also restricted.

What to wear on a flight:

  • Comfort should be your highest priority when deciding what to wear during your flight. Loose, breathable clothing is a sensible choice, as are flat, enclosed shoes.
  • Deep vein thrombosis (DVT), a blood clotting condition caused by prolonged inactivity, can be a risk on long-haul flights. Try to walk around the cabin and stretch your legs or do some gentle exercises in your seat to promote better circulation.

How to get through airport security fast when flying to San Carlos?
The secret is to be prepared before you reach airport security. That way, you'll be stepping onto that plane to San Carlos in next to no time. Follow these tips and get your holiday off to a flying start:

  • First things first. Your travel documents and ID will need to be presented to security personnel. Keep them someplace accessible so you don't hold up the line.
  • Your jacket, belt, keys and other contents of your pockets, like coins, will need to go through the X-ray machine. Make the whole process faster by removing them before your turn arrives.
  • Your electronic gadgets like phones and laptops will also need to go on a tray to be scanned. Don't worry, you'll be back online soon enough.
  • Travelling with a new cologne? No problem. As long as the volume is no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, you can keep it with you in your carry-on baggage.
  • There's a chance you'll be required to remove your shoes for scanning, so wearing slip-on shoes is always a good idea.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp objects like a pocket knife or tools, put them in your checked luggage. They won't be allowed in the cabin.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to San Carlos. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to San Carlos. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to San Carlos, or are just on the lookout for the best flights to San Carlos, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in San Carlos to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Miller Intl.
Destination airport IATA code
MFE
Destination city name
McAllen
Return price
€270

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