$19 Cheap Flights to San Ysidro, CA

Flights to San Ysidro at a glance

Traveling to San Ysidro is easy—simply select from a range of full-service or budget airlines. You can compare travel times and prices to find the best flights to San Ysidro that align with your budget and itinerary for exploring the city's renowned attractions and neighborhoods.

• Major airport near San Ysidro: San Diego International Airport (SAN)
• Flights per week: 5,250+ flights arriving at San Ysidro airport
• Number of airlines that fly to San Ysidro: around 50+ carriers

Popular airport near San Ysidro

San Ysidro is a vibrant city ideal for family, business, and urban getaways. Visitors are drawn to its outdoor activities and entertainment options. Conveniently, this city is accessible through a major airport, making it easy for travelers to plan their one-way flights to San Isidro.

• San Diego International Airport (SAN): Situated in San Diego County, California, approximately 15 miles from San Ysidro, this airport facilitates both domestic and international travel. It connects to over 265 domestic cities and around 145 global destinations. Passengers have the option to enhance their journey with first class, premium economy, or business class service, depending on the airline and route. Major carriers at this airport include Alaska Airlines, Southwest Airlines, and American Airlines.

Top routes to San Ysidro

• San Francisco (SFO) to San Ysidro (SAN), with one-way flight options from around $30
• Seattle (SEA) to San Ysidro (SAN), with one-way tickets available from around $60
• New York (JFK/LGA) to San Ysidro (SAN), with one-way flights starting at around $100
• Chicago (ORD/MDW) to San Ysidro (SAN), with one-way airfare from around $70
• Las Vegas (LAS) to San Ysidro (SAN), with one-way tickets available from around $35

Cheapest routes to San Ysidro

• San Francisco (SFO) to San Ysidro (SAN), with low one-way fares from around $30
• Phoenix (PHX) to San Ysidro (SAN), with cheap one-way fares from around $30
• Las Vegas (LAS) to San Ysidro (SAN), with budget one-way fares from around $35
• Denver (DEN) to San Ysidro (SAN), with low one-way fares from around $40
• Oakland (OAK) to San Ysidro (SAN), with low-cost one-way tickets from around $40

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to San Ysidro

• Southwest Airlines: Serving San Diego International Airport (SAN), Southwest Airlines is responsible for about 21% of the arrivals to San Ysidro. Travelers can expect an average one-way fare of roughly $230.
• American Airlines: Operating flights to San Diego International Airport (SAN), American Airlines makes up approximately 21% of arrivals to San Ysidro. The average one-way fare is around $360, with premium service options like business and first class available on select routes.
• United: With flights to San Diego International Airport (SAN), United accounts for around 17% of arrivals to San Ysidro. The typical one-way fare is about $340, offering premium service choices such as premium economy, business, and first class depending on the route.
• Alaska Airlines: Providing service to San Diego International Airport (SAN), Alaska Airlines contributes approximately 15% of arrivals to San Ysidro. The average one-way fare is around $270, with options for business and first class available on certain routes.
• Delta: Operating to San Diego International Airport (SAN), Delta captures about 15% of arrivals to San Ysidro. The average one-way fare is approximately $320, and premium service options may include premium economy and first class depending on the route.

Best time to fly to San Ysidro

The most popular months for travelers to fly to San Ysidro are January, March, and April, when peak temperatures in San Ysidro can reach up to 60.4°F in April. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 72.7°F. For better deals, September and October usually offer the lowest average one-way fares around $199, roughly 7% cheaper than the yearly average. Looking for additional cheaper months to fly? August and May offer average one-way fares of around $203, making them good options for flexible travelers.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to San Ysidro

Getting some of the best deals on flights to San Ysidro is all about timing and flexibility. Here are some key tips to help you save:

1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
3. Bundle and save—book a flight and unlock a hotel deal on Expedia*, or explore our San Ysidro hotel and flight deals.
4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
5. Earn miles—you can earn airline miles when you book your San Ysidro flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in San Ysidro

San Ysidro welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach San Ysidro efficiently:

• Public transportation: From San Diego International Airport, Seaport, a seaport, is located just about 0.1 miles away by walking, while Middletown Station, a metro station, is approximately 2.3 miles from the airport and can be reached by car. Additionally, B Street Cruise Ship Terminal, a cruise terminal, is situated around 3 miles away by car, providing convenient options for travelers.
• Hotel transfer: Transfers offer a convenient way to reach your hotel in San Ysidro, with private rides that can be arranged in advance.
• Car rental: Renting a car in San Ysidro is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in San Ysidro on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay around San Ysidro

• Chula Vista: Chula Vista is located 7 miles drive away from San Ysidro and is a vibrant city perfect for family outings and outdoor adventures. Visitors can enjoy a variety of activities, including shopping at local centers, splashing around at the water park, or catching a show at the theater. Notable spots include the San Diego Convention Center, ideal for business travelers, the scenic San Diego Bay, and the family-friendly Chula Vista Bayside Park, offering a great urban park experience.
• Coronado: Coronado is located 13 miles drive away from San Ysidro and is a charming city known for its stunning beaches and outdoor activities. Families can have fun at the beach, explore historical sites, or indulge in shopping at the local centers. Key attractions include the renowned Coronado Beach, perfect for sunbathing and beach sports, the San Diego Convention Center for business events, and the modern Port of San Diego, which offers insights into the area’s maritime history.
• National City: National City is located 9 miles drive away from San Ysidro and offers a lively atmosphere filled with family-friendly activities and outdoor experiences. Visitors can explore various shopping centers and enjoy educational opportunities at local facilities. Some highlights include the San Diego Convention Center, a hub for business events, the lush Balboa Park, and the picturesque San Diego Bay, ideal for outdoor enthusiasts looking for scenic views.

Tips for short-haul flights to San Ysidro

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

• Pack light and skip checked bags—when flying with budget airlines, it's usually more economical to travel with just a carry-on. Save space by using travel-sized toiletries, wearing your heaviest clothes, and planning your outfits carefully. This strategy also helps you avoid the wait at baggage claim upon arrival.
• Bring your own entertainment—many short-haul flights might not provide in-flight entertainment. Download your favorite TV shows, movies, music, or podcasts ahead of time, and consider bringing a book to keep yourself engaged. Remember to charge your devices fully before you board.
• Arrive at the airport in plenty of time—even for short or domestic flights, it's wise to arrive at least 1.5 to 2 hours before your departure, allowing enough time for traffic and security lines.
• Bring your own snacks and water—pack some snacks and a reusable water bottle to stay hydrated and save money while at the airport.

Tips for long-haul flights to San Ysidro

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

• Select your seat in advance—for longer flights, choosing your seat is essential for comfort. Full-service airlines often provide the option for free seat selection once online check-in opens, typically 24–48 hours before your flight. Some airlines may allow seat selection even earlier.
• Arrive at the airport in plenty of time—make sure to arrive at least 3 hours prior to departure for international flights to accommodate check-in, security, and immigration procedures.
• Relax at the airport—if you have some extra time, take the opportunity to explore the shops, grab a coffee, or unwind at your gate or in a departure lounge if you have access. Most airports offer free and accessible Wi-Fi.
• Adjust to the new time zone mid-flight—begin syncing your body clock by setting your watch and adjusting your sleep schedule to align with your destination's time zone. Try to sleep or stay awake during the flight in accordance with the local time at your arrival destination to help minimize jet lag.

Tips to find the cheapest flights to San Ysidro

The cheapest day to fly

Get started finding a cheap flight to San Ysidro on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want 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.

The cheapest month to fly

September is the cheapest month to fly to San Ysidro. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to San Ysidro. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to San Ysidro, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to San Ysidro

The lowest price for round-trip flights to San Ysidro in 2026 starts from $38, while one-way tickets start from from $19. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to San Ysidro. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to San Ysidro

Frontier Airlines, Southwest Airlines, Delta, United, Alaska Airlines, American Airlines are just some of the airlines that can typically offer cheap tickets to San Ysidro. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to San Ysidro and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for San Ysidro, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to San Ysidro. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your San Ysidro plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to San Ysidro

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to San Ysidro.

Stopover savings

The cheapest tickets to San Ysidro are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to San Ysidro. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to San Ysidro for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to San Ysidro. Simply download the free Expedia app to your smart device and activate San Ysidro flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to San Ysidro. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.