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San Diego’s tourism economy is benefiting from a sharp rise in air travel so far in 2026, as passenger traffic at San Diego International Airport (SAN) climbs an estimated 10.4 percent on the back of stronger demand from Mexico and other key international markets and a widening network of nonstop routes.
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Airport Growth Outpaces Recent Years
Publicly available airport data and industry coverage indicate that airlines are flying to more than 85 destinations from San Diego in 2026, a record number of nonstop links that reflects several years of steady capacity growth at SAN. Route announcements across domestic and international markets, along with the ramp-up of the new Terminal 1, are contributing to a double-digit increase in passenger volumes this year compared with 2025.
The estimated 10.4 percent gain in 2026 passenger traffic comes on top of record-breaking totals in 2025, when airlines introduced more than a dozen new or resumed nonstop routes and additional international carriers entered the market. That layered growth is pushing San Diego further up the ranks of U.S. leisure and business gateways while testing the limits of what remains the world’s busiest single-runway commercial airport.
San Diego’s overall visitor economy has already been on an upswing. Industry research compiled by local tourism organizations shows the region hosted roughly 32.5 million visitors in 2024, generating tens of billions of dollars in economic impact and supporting well over 150,000 jobs tied directly and indirectly to travel. The 2026 acceleration in airport traffic suggests that tourism’s contribution to local employment and tax revenues is likely to strengthen again this year.
Capacity increases from major carriers are amplifying this trend. For example, network expansions from airlines such as Southwest and Alaska have been highlighted in trade and local media as part of a broader bet on San Diego, with higher trip counts, additional redeye and transcontinental flights, and new city pairs being layered into schedules for summer 2026 and beyond.
Mexico Remains the Powerhouse Market
Mexico continues to anchor San Diego’s international tourism base and is one of the primary drivers of the current growth phase. Regional and state-level travel research consistently identifies Mexico as the largest source of international visitors to both California and San Diego, accounting for millions of trips annually when including day visitors crossing the nearby border.
Recent market reports from Visit California show that Mexico remains the state’s top international market by volume and spending, representing nearly half of all international visits to California and contributing several billion dollars in annual visitor expenditures. A separate global market profile indicates that in 2023, the San Diego region captured a substantial share of that spending, with Mexican visitors accounting for a significant portion of total international outlays in the area.
For San Diego specifically, tourism fact sheets and industry briefs describe Mexico as the leading international origin market by both volume and spending, with cross-border travel underpinning everything from hotel stays and vacation rentals to shopping, dining, and attractions. In 2024, independent tourism analyses estimated that international visitors to San Diego were “mostly from Mexico,” with more than six million visits including cross-border day trips.
Cooperation between public and private entities on both sides of the border is reinforcing this pattern. A 2023 bulletin from Mexico’s Secretariat of Tourism highlighted efforts to deepen collaboration between Mexican officials and San Diego business leaders to stimulate tourism and investment flows between Baja California, greater California, and the rest of Mexico. Those initiatives are now intersecting with San Diego’s air service growth, giving Mexican travelers more options to connect through SAN to other parts of the United States and overseas.
New Routes Broaden Global Connectivity
The surge in 2026 passenger traffic is closely linked to a more globally connected route map. Airport and airline announcements compiled in industry outlets point to an expanding roster of nonstop services from San Diego, including new or increased flights to major domestic hubs, Canadian cities, and long-haul international destinations. Nonstop service now spans roughly 87 destinations across 18 airlines, according to route trackers and airport-overview tools drawing on official schedule data.
Domestic connectivity has deepened markedly. Low-cost and full-service carriers alike have rolled out additional links from San Diego to key business and leisure markets such as Chicago, Denver, Phoenix, Dallas Fort Worth, Salt Lake City, Boston, Oakland, Tulsa, Raleigh-Durham, and Santa Barbara, among others. Some carriers are also layering in extra frequencies on high-demand routes, including multiple additional daily departures on popular short-haul corridors.
Internationally, San Diego is gradually building out its long-haul network while maintaining strong service into Mexico. Industry coverage of the wider San Diego–Tijuana region shows that Mexico City and Guadalajara rank among the top city pairs by passenger volume in the cross-border metropolitan area, underscoring the importance of Mexican connectivity for outbound and inbound traffic. At the same time, increased transcontinental and transatlantic flying from SAN is allowing overseas visitors to reach the region with fewer connections.
Collectively, these route additions and frequency increases underpin the 10.4 percent uplift in 2026 passenger numbers. Analysts following the market suggest that airlines are capitalizing on San Diego’s solid leisure demand, growing convention business, and strengthened cross-border economic ties, which together support year-round traffic rather than only seasonal peaks.
Infrastructure Investment Supports Tourism Growth
San Diego International Airport’s infrastructure program is another factor enabling higher passenger throughput. The multi-phase replacement of the aging Terminal 1, coupled with road and access improvements around the airport, is designed to relieve congestion and create room for incremental growth within the constraints of a single-runway facility.
Coverage from local and national outlets in 2025 and 2026 describes how the new Terminal 1 is opening in stages, with additional gates, expanded security checkpoints, upgraded check-in and baggage systems, and more commercial space. Once fully operational, the project is expected to increase gate capacity and streamline passenger flows, which supports airlines’ willingness to add aircraft turns and experiment with new routes.
Complementary investments in ground access, including new road configurations and dedicated airport connectors, are also reshaping the travel experience. Reports and video briefings shared by the airport authority and local media detail a newly opened access road system that diverts traffic away from the most congested segments of North Harbor Drive, a longstanding choke point for travelers reaching SAN.
Together, these infrastructure upgrades strengthen the airport’s role as a gateway for the broader San Diego–Tijuana megaregion. With Tijuana’s airport and cross-border terminal already offering extensive service into interior Mexico, enhancements at SAN increase the binational region’s ability to attract long-haul visitors who may combine stays on both sides of the border.
Tourism, Economy and the Binational Advantage
The interplay between rising passenger traffic and tourism spending is particularly significant in San Diego, where travel and hospitality represent one of the city’s largest employers. Economic reports from regional development organizations estimate that tourism generated around 22 billion dollars in total economic impact in 2024, with roughly four out of five visitor dollars spent on local businesses outside of lodging, such as restaurants, retailers, transportation providers, and attractions.
This activity sustains thousands of small and mid-sized enterprises and helps fund municipal services through hotel and sales tax collections. With a 10.4 percent increase in passenger volumes in 2026, local analysts expect incremental gains in visitor outlays, especially as higher-yield international segments recover and expand. Conference and convention traffic, supported by a waterfront center ranked among the top venues in the United States, adds another layer of demand.
San Diego’s position within the binational San Diego–Tijuana metropolitan area further amplifies these trends. The region hosts the busiest land border crossing in the world and benefits from daily cross-border movements for work, shopping, health care, and leisure. Tourism research notes that Mexico is just minutes from downtown San Diego, influencing the city’s culinary, cultural, and entertainment offerings and making it easier for Mexican visitors to integrate short-haul air trips through SAN into broader travel plans.
Looking ahead, published forecasts from state and regional tourism bodies anticipate that Mexico will remain a cornerstone of California’s international visitor base, complemented by growth from Canada, Europe, and Asia. As San Diego deepens its air service and invests in airport capacity, the 2026 bump in passenger traffic is widely viewed in industry coverage as an inflection point in the region’s evolution from a primarily domestic beach destination into a more globally connected gateway for both sides of the border.
San Diego International Airport air service updates
Visit California international market share report