
Cheap Flights to San Marcos , CA from CA $219
View CA $219 flight on Wed, Dec 9, 2026Opens in a new windowPopular airlines to San Marcos
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How much is the cheapest flight to San Marcos?
Prices were available within the past 7 days and start at CA $219 for one-way flights and CA $409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.





Frequently asked questions
What is the name of San Marcos' airport?
How far is San Diego Intl. Airport (SAN) from central San Marcos?
What airport is best to fly into San Marcos?
How many airlines fly to San Marcos?
Which airlines fly to San Marcos?
How many nonstop flights are there to San Marcos?
Where are the most popular flights to San Marcos departing from?
How long is the flight to San Marcos Airport?
How to book the cheapest flight to San Marcos?
Do you have any tips for my flight to San Marcos?
- A plane ride can be a great experience if you've got all the right things. Firstly, you'll want some basic toiletries, such as deodorant and a toothbrush, a spare pair of socks and something to read. Next, leave space in your hand luggage for your phone and charger, your important medications and perhaps a comfy neck pillow as well. Lastly, and most importantly, be sure to take your passport, travel documents and some money.
- Leave all your full-sized bottles of shampoo and hairspray in your checked baggage. Any liquids or gels in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated by security. Pointed or sharp objects, like your treasured pocket knife, and dangerous goods which are flammable or explosive, such as aerosols and matches, are also not allowed.
- Your goal here is to be as comfortable as possible. Go for a pair of slip-on shoes, dress in loose, natural-fibre clothing and don't forget to bring a sweater in case it gets cold in the cabin.
- Deep vein thrombosis (DVT) is a risk on long-haul flights. It results from blood clotting due to poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression socks.
How to get through airport security fast when flying to San Marcos?
- Keep your boarding pass and passport someplace easily accessible. They'll be the first things you'll be asked to show at airport security.
- The X-ray machine comes next. Remove anything metal on you that is likely to set off the scanner's alarm. This includes items like headphones or earphones, as well as heavy coats or jackets. They'll need to be placed on the conveyor belt for screening.
- Your electronic gadgets like laptops and phones will also have to go through the machine to be scanned. Don't worry, you'll be back online before you know it.
- Remember to remove liquids and gels from your carry-on luggage. They usually need to be sent through the X-ray machine separately. Each product should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a quart-size (one litre), clear zip-lock bag.
- The right choice of footwear can save you a few precious minutes. Boots and bulky shoes are often required to be removed and separately scanned. Slip-on sneakers are usually not.
- 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 suitcase. They won't be allowed on board.
Book with confidence
Find Your Flights to San Marcos SAN
Cheap flights to San Marcos (SAN)
Get started finding a cheap flight to San Marcos on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.
We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to San Marcos.
Roundtrip prices range from CA $409 - CA $683, and one-ways San Marcos start as low as CA $219.
Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.
Airlines that fly to San Marcos (SAN)
You have several options for which airline you choose to travel with to San Marcos. There are 10 airlines flying into SAN: WestJet, Alaska Airlines, Delta, Porter Airlines, Air Canada, American Airlines.
Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.
For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare.
Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.
Find the best deals
At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to San Marcos (SAN) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to SAN in December and in December for one-ways.
Cancellation & flexibility
To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.
Travel information
Destination airport | San Diego Intl. |
|---|---|
Destination airport IATA code | SAN |
Destination city name | San Diego |
Roundtrip price | CA $219 |
Trending flights to San Marcos
Prices were available within the past 7 days and start at CA $219 for one-way flights and CA $409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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