$70 Cheap Flights to San Diego International
One-way
Departing from
United States
Going to
San Diego International
San Diego (SAN)
United States • September, 2026
91% AI deal score
$413 $79
San Diego (SAN)
United States • June, 2026
86% AI deal score
$548 $84
San Diego (SAN)
United States • May, 2026
84% AI deal score
$268 $70
San Diego (SAN)
United States • May, 2026
84% AI deal score
$268 $70
San Diego (SAN)
United States • May, 2026
84% AI deal score
$268 $70
This is the lowest one-way flight price found by RatePunk users in the last 24 hours for a flight going to San Diego International. Fares are subject to change and may not be available for all dates. (Data last updated 5/3/2026).
Popular airlines to San Diego International
American Airlines
Alaska Airlines, Inc.
JetBlue Airways
Deutsche Luft Hansa
Frontier Airlines
Hawaiian Airlines
Spirit Airlines
United Airlines
411,747 searches in the past 7 days on RatePunk
Flight deals up to 90% off
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AI deal score and AI insights
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Top Cheap Flight Deals from United States to San Diego International
Recent round-trip flight deals to San Diego International
Tue, May 19 - Fri, May 22
Cheapest
Phoenix (PHX) - San Diego (SAN)
Frontier Airlines airlines • Direct
San Diego (SAN) - Phoenix (PHX)
Frontier Airlines airlines • Direct
$108
$46
-$62
57%
Fri, May 29 - Wed, Jun 3
Phoenix (PHX) - San Diego (SAN)
Frontier Airlines airlines • Direct
San Diego (SAN) - Phoenix (PHX)
Frontier Airlines airlines • Direct
$108
$46
-$62
57%
Thu, May 21 - Tue, May 26
Phoenix (PHX) - San Diego (SAN)
Frontier Airlines airlines • Direct
San Diego (SAN) - Phoenix (PHX)
Frontier Airlines airlines • Direct
$108
$46
-$62
57%
Thu, May 21 - Wed, Jun 3
Phoenix (PHX) - San Diego (SAN)
Frontier Airlines airlines • Direct
San Diego (SAN) - Phoenix (PHX)
Frontier Airlines airlines • Direct
$108
$46
-$62
57%
Tue, May 19 - Tue, Jun 2
Phoenix (PHX) - San Diego (SAN)
Frontier Airlines airlines • Direct
San Diego (SAN) - Phoenix (PHX)
Frontier Airlines airlines • Direct
$108
$46
-$62
57%
Tue, May 19 - Wed, Jun 10
Phoenix (PHX) - San Diego (SAN)
Frontier Airlines airlines • Direct
San Diego (SAN) - Phoenix (PHX)
Frontier Airlines airlines • Direct
$108
$46
-$62
57%
The cheapest time to fly to San Diego International
Ready to jet to San Diego International on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Facts About Flights from United States to San Diego
To help you plan your journey, here are some quick San Diego flight facts and tips.
San Diego airports
San Diego is served by two main public airports: San Diego International Airport (SAN) and McClellan-Palomar Airport (CLD). San Diego International Airport (SAN), also known as Lindbergh Field, is the busiest single-runway airport in the United States, offering a wide array of domestic and international flights. Its convenient location makes it easily accessible to downtown San Diego and surrounding areas. McClellan-Palomar Airport (CLD), located in Carlsbad, primarily serves the North County region of San Diego. While offering fewer commercial flights compared to SAN, it provides a convenient option for travelers in North County, with connections to several destinations and general aviation services.
San Diego International (SAN)
San Diego, United States
McClellan–Palomar (CLD)
San Diego, United States
Pro tip: search “San Diego (Any)” to see fares to all San Diego airports – sometimes one is cheaper than the others on your dates.
Insights for flights to San Diego International
Cheapest airport
Tijuana (TIJ)
While technically across the border, Tijuana International Airport (TIJ) is often the cheapest way to access the San Diego area. It's easily accessible via the Cross Border Xpress (CBX) bridge from San Diego, offering a unique and convenient way to start your San Diego adventure while saving some serious dough! Plus, you can grab some authentic tacos before heading north!
Nonstop vs. 1-stop
50+ cities
Though not a major hub, San Diego International Airport connects you to over 50 cities non-stop; some of the most popular routes include destinations like San Francisco, Seattle, and Chicago.
Number of airlines
10+ airlines
San Diego International Airport is served by over a dozen airlines, from full-service carriers like Delta and United, to low-cost options like Southwest and Spirit, so you've got plenty of choices when planning your next trip!
Typical price range (round-trip)
$150 - $600
Generally, flights to San Diego can range from around $150 to $600, depending on when you're planning to soak up the sun. Prices tend to peak during the summer months and around major holidays due to increased demand. Coastal destinations like San Diego are very popular during peak seasons.
Flight frequency
500+ Flights
Flights to sunny San Diego operate daily, with increased frequency during peak seasons like summer and holidays. You'll find more options during the day, so get ready to explore this amazing city!
SAN Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
SAN airport insights
Best days to catch a deal
Thur, Mon
Based on the provided data, Tuesday is the best day to find flight deals from San Diego International Airport. Saturday and Wednesday also offer a higher chance of cheaper flights compared to other days.
Avg. deal survival time
18.9 hours
Deals from San Diego International Airport survive for an average of 18.9 hours. This means you should book quickly when you find a deal you like!
Rare deal frequency
10 deals
We found 10 rare deals for flights to or from San Diego International Airport in the past month. These rare deals received an AI Deal Score of 90+ and usually include mistake fares, special promotions, or ultra-discounts.
Average price drop
-62%
On average, you can save significantly on flights from San Diego International Airport, as prices tend to drop by 61.8%. Keep an eye on flights departing from this airport, as waiting for price drops could lead to substantial savings.
Next 4 weeks: deal forecast
San Diego International Airport Forecast
The forecast for San Diego International Airport next month shows stable prices overall. However, expect a slight increase in fares during the Memorial Day weekend.
Top 5 biggest price drops (last 3 months)
Found on April 27
Eugene - SAN
$675 → $131
81%
Found on April 29
Reykjavik - SAN
$1,125 → $275
76%
Found on April 30
Rarotonga - SAN
$2,125 → $567
73%
Found on April 30
Bora Bora - SAN
$1,650 → $521
68%
Found on May 1
Allentown - SAN
$830 → $262
68%
Check these nearby airports too
Looking for more options? These airports near SAN sometimes drop rare deals too:
Mexicali International (MXL)
~3 rare deals/month
Tijuana International (TIJ)
~8 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially MXL and TIJ for long-haul deal surprises.
When Is the Best Time to Fly from United States to San Diego International
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to San Diego International:
Cheapest month
September
Cheapest month
If you're looking to snag the best deals, September is your golden ticket to San Diego. The weather is still fantastic, with warm days and pleasant evenings, but the summer crowds have thinned out, leading to lower prices on flights and accommodations. Plus, you can still enjoy all the city's attractions without battling hordes of tourists!
Best day to book
Tuesday
Best day to book
Tuesday is often the unsung hero of flight bookings. Airlines tend to release new deals early in the week, and by Tuesday, you'll often find the most competitive prices as they vie for your attention. Keep an eye out for those mid-week specials and you could save a bundle on your San Diego flight.
Cheapest days to fly
Wednesday
Cheapest days to fly
Flying on a Wednesday can save you some serious cash. Mid-week flights are generally less popular, which means airlines are more likely to offer discounts to fill those seats. Plus, you'll breeze through the airport with shorter security lines and more elbow room on your flight. What's not to love?
Advance booking sweet spot
2 months
Advance booking sweet spot
The sweet spot for booking your San Diego flight is about 2 months in advance. This timeframe typically offers the best balance between price and availability. Booking too early might mean prices are still inflated, while waiting too long could leave you with limited options and higher fares.
Seasonal considerations
Simillar
Seasonal considerations
San Diego enjoys a mild climate year-round, so seasonal considerations aren't as pronounced as in other destinations. While summer might see a slight uptick in flight prices due to increased demand, you can generally find good deals throughout the year. The weather is always great.
TL;DR: To sum it up, September is the cheapest month to fly to San Diego, and Tuesday is the best day to book your flight. Aim to fly on a Wednesday for even more savings, and book about 2 months in advance to snag the best deals. San Diego's weather is pretty consistent, so seasonal price variations aren't too dramatic. Enjoy your trip to sunny San Diego!
San Diego Airports & Ground Transportation
One big question for travelers is which San Diego airport to fly into. Here’s a quick guide to San Diego’s airports and how to get to the city from each:
San Diego International Airport (SAN)
Welcome to San Diego International Airport, your gateway to sunny skies and Pacific breezes! Just a stone's throw from downtown, SAN offers a convenient entry point to San Diego's vibrant city life. Once you hop off your flight, you will be greeted by a plethora of amenities. Grab a bite at local eateries, shop for souvenirs, or simply relax before heading out. Transportation to downtown San Diego is a breeze, with options like ride-sharing services, taxis, and the convenient Metropolitan Transit System (MTS) bus route 992 connecting you directly to the city center. Don't forget to soak in the views as you land – the approach offers stunning glimpses of the San Diego skyline and coastline!
Tip: Arriving or departing? Download the airport app for real-time updates on your flight and gate information!
John Wayne Airport (SNA)
Located in the heart of Orange County, John Wayne Airport, also known as Orange County Airport, offers an alternative for accessing San Diego, although it requires a bit more travel. While not directly in San Diego, SNA provides a convenient option if you're planning to explore both San Diego and the OC. The airport boasts a range of amenities, including dining and shopping options, to keep you entertained while you wait for your flight. To get to San Diego from SNA, you can rent a car and enjoy a scenic drive down the I-5, or hop on a train from the nearby Tustin Metrolink station. Keep an eye out for the occasional celebrity sighting - you never know who might be jetting in or out!
Tip: Consider renting a car if you're flying into SNA, as it gives you the most flexibility for exploring both Orange County and San Diego!
Other airports
San Diego is a popular destination, and while San Diego International Airport (SAN) is conveniently located, sometimes nearby airports in other cities offer better deals or flight options. For example, Los Angeles International Airport (LAX) and John Wayne Airport (SNA) in Orange County are viable alternatives, but keep in mind the distance! Transportation from these airports to San Diego typically involves a rental car (hello, SoCal road trip!), a ride-sharing service, or a combination of public transportation and shuttle, so plan accordingly for a potentially long commute.
Airport transfers
Getting around San Diego from the airport is a breeze with options like ride-sharing services, taxis, and public transportation. The Metropolitan Transit System (MTS) offers bus and trolley services connecting the airport to downtown and other key areas. For a more personalized experience, consider a shuttle or rental car to explore the city at your own pace.
What to Do in San Diego
San Diego isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in San Diego, organized by interest:
Sightseeing & landmarks
San Diego is full of picture-perfect spots! From the historic Balboa Park with its stunning Spanish architecture to the iconic Gaslamp Quarter, you'll be snapping photos all day long. Don't forget the breathtaking views from the Cabrillo National Monument!
Arts & culture
Dive into San Diego's vibrant arts scene by visiting the numerous museums in Balboa Park, catching a show at the Old Globe Theatre, or exploring the colorful murals in Barrio Logan. San Diego's art and culture scene offers something for everyone.
Food & nightlife
Get ready for a culinary adventure in San Diego! From fresh seafood to authentic Mexican cuisine, your taste buds are in for a treat. When the sun goes down, the Gaslamp Quarter comes alive with bars and clubs, ensuring a memorable night out.
Shopping & fashion
Shop 'til you drop in San Diego! Explore the unique boutiques in La Jolla, find designer deals at the Carlsbad Premium Outlets, or browse the trendy shops in the Gaslamp Quarter. San Diego has something for every style and budget.
Nearby getaways
Escape the city for a day trip to the charming town of Julian, known for its apple pies and gold rush history, or head south to Tijuana for a taste of Mexican culture. For a relaxing beach escape, Coronado Island is just a short drive away!
No matter your interest – be it art, food, nightlife, or nature – San Diego has something for everyone. And the best part? Many events and attractions refresh throughout the year, so there’s always something new to experience each visit.
Events in San Diego This Month
s4ea junior open sports - san diego, ca 2026
Learn a variety of skills in various sports, including basketball, kickball, indoor soccer, lacrosse, pillo polo, volleyball, and floor hockey for ages 5-18. This sports program aims to improve athletic abilities and foster teamwork.
basketball class - youth - cub academy-peewee (7-8yrs) - san diego, ca 2026
This activity is full. Stay in shape during the off-season with our Cub Academy program. We cover fundamentals such as passing, shooting, and defensive strategies to improve your game.
art class - artist studio - san diego, ca 2026
Children are naturally creative, and this camp encourages their interests. In these fun, themed art camps, children will explore various artistic techniques and create their own masterpieces.
cooking - let's get cooking (session 2) - senior program
Learn basic cooking skills and create delicious food for the entire family! This program, held at Park de la Cruz Community Center, teaches you how to prepare tasty and nutritious meals from scratch.
del mar national horse show (jumping)
The 77th Annual Del Mar National Horse Show - Hunter/Jumper week showcases the top equestrians on the West Coast and is recognized as an Official USEF Heritage Competition. Spectators are welcome to enjoy the thrilling displays of horsemanship.
San Diego Weather
Weather in San Diego
Fri, May 1
0%
19° 16°
0%
Sat, May 2
10%
20° 16°
10%
Sun, May 3
35%
18° 15°
35%
Mon, May 4
20%
18° 14°
20%
Tue, May 5
25%
18° 14°
25%
Wed, May 6
0%
19° 15°
0%
Thu, May 7
0%
19° 16°
0%
Here’s a quick look at the weather you can expect, plus this week’s forecast:
Seasons: San Diego experiences mild, dry summers from June to August, with average temperatures ranging from 20°C to 25°C (68°F to 77°F). Winters, from December to February, are cool and wetter, with temperatures averaging between 13°C and 18°C (55°F to 64°F). Spring and fall are transitional seasons with pleasant temperatures and less rainfall.
Rain: San Diego primarily experiences rainfall during the winter months, from November to March, with occasional showers in the spring. The rainfall is generally light and does not significantly impact travel plans.
This week's forecast: The weather forecast for this week in San Diego shows temperatures ranging from 17.8°C to 19.9°C (64°F to 67.8°F). There is a chance of rain early in the week, with partly cloudy or sunny conditions expected later in the week. Overall, the weather appears to be mild and pleasant.
(We update the weather forecast weekly so you know what to expect during your travel week. Always check a day or two before your flight for the most current conditions.)
Frequently Asked Questions About Flights to San Diego International
(Have more questions?) Feel free to reach out or check our comprehensive San Diego International travel guide. We’re here to help make your flight to San Diego International (and the trip itself) as smooth as possible.
Pro Tips for Finding Cheap Flights to San Diego International
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on San Diego International flights:
Be Flexible with Travel Dates: Being flexible with your travel dates can lead to significant savings. Mid-week flights and traveling during the off-season are often cheaper. Who knows, a Tuesday might just become your new favorite day to fly!
Consider Nearby Airports: Sometimes, flying into or out of a smaller, less popular airport near San Diego can save you money. Don't be afraid to explore options like Tijuana International Airport (TIJ), which is just across the border!
Set Up Price Alerts on RatePunk: Don't miss out on flash sales! Set up price alerts on RatePunk to track flight prices for your desired dates and receive notifications when prices drop. It's like having a personal flight deal hunter!
Book in Advance (But Not Too Early!): While last-minute deals are rare, booking too early isn't always the best strategy either. Aim to book your flights about 2-3 months in advance for domestic travel to snag the sweet spot. You'll be doing the tango of savings in no time!
Mix and Match Airlines: Don't be afraid to fly one airline to San Diego and a different one on the way back. Sometimes, booking two one-way tickets with different carriers can be cheaper than a round-trip ticket. Live on the edge with the airlines!
Use Incognito Mode: Airlines and travel sites sometimes track your searches and may increase prices as you search more often. Use incognito mode or clear your browser's cookies to see the lowest fares. You have to outsmart the system!
Check for Package Deals: Sometimes, bundling your flight with a hotel or car rental can save you money. Many travel sites offer package deals that are cheaper than booking each component separately. It is like getting a travel surprise!
Follow Airlines on Social Media: Airlines often announce flash sales and special promotions on their social media channels. Follow your favorite airlines on platforms like Twitter and Facebook to stay in the loop. Be fast or be last!
Consider Budget Airlines: Budget airlines can offer significantly lower fares, but be sure to factor in additional costs for baggage, seat selection, and other extras. You get what you pay for!
Redeem Travel Rewards: If you have credit card points or airline miles, now is the time to use them! Redeeming travel rewards can significantly reduce the cost of your flight or even make it free. Who doesn't love free flights?
By keeping these tips in mind, you’ll be well-equipped to find the cheapest flights to San Diego International and make the most of your travel budget. After all, the more you save on your flight, the more you can spend on a Broadway show, a nice meal, or an extra tour in San Diego International! 🎉✈️