Airport hub guide
San Diego International SAN: the complete layover guide
Two terminals, a brand new Terminal 1, four lounges all on one side of the field, and a downtown 15 minutes away by city bus. Here is how to spend a layover at San Diego without stress.
Layover verdict Good for daytime layovers of 3 to 6 hours: security moves quickly by big airport standards and downtown San Diego is a 15 minute bus ride away. Bad for overnights, because the gate areas close after the final arrivals.
Best lounge play The Aspire Lounge in Terminal 2 is the reliable Priority Pass entry. The Chase Sapphire Lounge near gate 46 is the best room in the airport if you hold Sapphire Reserve.
The one thing to know Terminal 1 and Terminal 2 do not connect airside, and construction has closed the walkway between them. A terminal change means the free shuttle plus a fresh security screening.
Last reviewed 18 April 2026
Quick facts
San Diego at a glance
| Terminals | 2 (Terminal 1, new from September 2025; Terminal 2 with East and West halves) |
| Airside transit between terminals | No. Free loop shuttle landside about every 15 minutes, then a new security screening |
| Free wifi | Yes, on the #SANfreewifi network; sessions are time limited but renew without charge |
| Sleep friendliness | Poor. Gate areas close overnight; landside benches near the Terminal 2 baggage claim are the fallback |
| Lounge count | 4 airside, all in Terminal 2, plus the USO center landside |
| Nearest in terminal hotel | None. Sheraton and Hilton on Harbor Island are closest, both with free airport shuttles |
Orientation
How San Diego is laid out
San Diego International is small, scenic, and closer to its city than almost any major US airport. Downtown sits about 3 miles east, a 15 minute bus ride from the curb.
There are two terminals. Terminal 1 is the new one, opened 23 September 2025 as the first phase of a $3.8 billion rebuild, replacing a building that had served since the 1960s. The first phase brings 19 gates, a 13 lane security checkpoint, 17 places to eat and shop, and an outdoor deck with views across the bay toward downtown. Southwest, JetBlue, Frontier, Breeze, Sun Country, Air Canada and WestJet fly from here. Terminal 2 is the older building and splits into East and West halves: Alaska and American check in at T2 East, while Delta, United, Hawaiian, British Airways, Japan Airlines, KLM and Copa use T2 West. The two T2 concourses connect airside, so one checkpoint covers every T2 gate.
The catch is the gap between the terminals. T1 and T2 do not connect airside, and the rebuild has closed the landside walkway that used to link them. A free shuttle loops between the terminals roughly every 15 minutes from 4 a.m. to 2 a.m., and at the other end you clear security from scratch. Treat any T1 to T2 connection as a 45 minute job at minimum, more at peak times. The airport plans to restore the walk between terminals once the rest of the new T1 is complete; the timing is to be confirmed.
One more structural fact shapes your day here: SAN runs the busiest single runway operation in the United States. When marine fog rolls in off the bay, usually in the morning, delays stack quickly. Build slack into tight connections on early flights.
Lounges
The SAN lounge picture
Four lounges, every one of them in Terminal 2. Terminal 1, for all its glass and daylight, opened without a single lounge.
The Aspire Lounge is the workhorse for independent access. It sits in Terminal 2 between gates 23 and 33; from the east checkpoint, turn left and walk toward gate 33. Priority Pass gets you in, subject to space, which makes this the default play for most cardholders. Current opening hours are to be confirmed, so check before relying on it for a dawn departure.
The Chase Sapphire Lounge by The Club is the best room at the airport. It sits near gates 46 and 47 and opens daily from 5 a.m. to 10 p.m. Chase Sapphire Reserve cardmembers enter free with up to two guests. Priority Pass members can use one visit per calendar year at US Sapphire lounges, with additional visits charged at $75, so save that entitlement for a day when the Aspire is heaving.
The Delta Sky Club and the United Club sit side by side on the mezzanine above the Terminal 2 West food court. Both open around 5 a.m. and close around 10 p.m. The United Club sells day passes at the door for $59 when it has space. There is no Admirals Club at SAN, so American flyers without other access are limited to the Aspire or the Sapphire lounge.
Military travelers get the standout free option: the USO Neil Ash Airport Center, landside at Terminal 2, open 6 a.m. to 10 p.m. on weekdays and 8 a.m. to 5 p.m. on weekends, with snacks, showers, a rest area and a large outdoor patio. Valid military ID is required.
Help is coming for Terminal 1. An Escape Lounge and an Alaska Lounge are both announced for 2027, details to be confirmed. Until then the honest advice is simple: Terminal 2 for the lounges, Terminal 1 for the food.
Sleeping
Sleeping at San Diego airport
SAN is a poor overnight airport, and it makes no secret of it. Gate areas close after the final arrivals and everyone moves landside until security reopens.
The building stays open 24 hours, but the comfortable airside seating is off limits overnight. Checkpoints close after the last flights of the night, typically around midnight, and reopen around 4:30 to 5 a.m. That leaves the landside areas. The benches and couches near the Terminal 2 baggage claim are the usual refuge, and some of the seating there has no armrests. Expect cleaning crews, announcements, and vending machines as the only food until the first cafes open. Bring layers, because the overnight air conditioning is unsentimental.
If your layover spans a full night, pay for a bed. There is no hotel inside either terminal. The closest beds sit on Harbor Island, directly across the water from the runway: the Sheraton San Diego Hotel and Marina, about a 15 minute walk from Terminal 2, and the Hilton San Diego Airport on Harbor Island. Both run free airport shuttles. A real bed on either side of a dawn departure beats six upright hours on a bench, every time.
Getting out
Getting to the city
Few major airports put you downtown faster. MTS Route 992 leaves from outside both terminals and reaches Santa Fe Depot in about 15 minutes for $2.50.
The 992 runs about every 15 minutes for most of the day, seven days a week, roughly from 4:20 a.m. to 11:50 p.m. Pay $2.50 one way, or $1.25 at the reduced fare, using a PRONTO card or the ticket machines near the airport information centers. Santa Fe Depot is the connection point for the whole region: three Trolley lines, the COASTER commuter train up the coast, and Amtrak.
The San Diego Flyer is the free option for transit riders: an electric shuttle between the Transportation Plaza, across the street from baggage claim, and Old Town Transit Center. It runs every 20 to 30 minutes, with a first pickup at 4:45 a.m. and a last run at 12:30 a.m. From Old Town you can pick up the Trolley or the COASTER without paying anything for the airport leg.
Taxis leave from the Transportation Plaza and run roughly $24 to $30 to downtown before tip. With 4 hours or more between flights, leaving the airport is genuinely worth it here. Little Italy and the Embarcadero waterfront are minutes away, and the 992 makes the round trip cheap and predictable. Just remember the overnight airside closure if your return runs late, and keep the security reopening time in mind for early departures.
FAQ
San Diego layover questions
Can I sleep overnight at San Diego airport?
Not airside. The terminals stay open but gate areas close after the final arrivals and everyone moves landside, where benches near the Terminal 2 baggage claim are the realistic option. Security reopens around 4:30 a.m., so a night here means thin sleep; the Sheraton and Hilton on Harbor Island both run free airport shuttles.
How do I get between Terminal 1 and Terminal 2 at SAN?
Take the free terminal loop shuttle, which runs about every 15 minutes from roughly 4 a.m. to 2 a.m. The terminals do not connect airside and construction has closed the landside walkway, so every terminal change means clearing security again. Budget at least 45 minutes.
Is wifi free at San Diego airport?
Yes. Connect to the #SANfreewifi network in either terminal. Sessions are time limited but you can renew them as often as you need at no charge.
Which lounges does San Diego airport have?
Four, all in Terminal 2: the Aspire Lounge near gate 33, the Chase Sapphire Lounge near gate 46, and the Delta Sky Club and United Club on the mezzanine in T2 West. Terminal 1 has no lounge yet; an Escape Lounge and an Alaska Lounge are announced for 2027, to be confirmed.
How do I get from SAN to downtown San Diego?
MTS Route 992 picks up outside both terminals about every 15 minutes and reaches Santa Fe Depot downtown in about 15 minutes for $2.50. A taxi runs roughly $24 to $30. The free San Diego Flyer shuttle links the airport to Old Town Transit Center for Trolley and COASTER connections.
Can I leave the airport during a layover at SAN?
Yes, if you are admitted to the United States; international arrivals clear immigration at their first US airport. Downtown is about 3 miles away, so a 4 hour layover leaves time for the waterfront or Little Italy. Entry rules depend on your nationality; verify before travel.
Check lounge access for SAN
Four lounges operate at San Diego and several admit any traveler through Priority Pass or paid day passes, regardless of airline or cabin. Compare current access options, prices and hours before you fly.
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Your layover, planned
The SAN guides
San Diego layover guide, hour by hour
What 3, 5 and 8 hours actually buy you at SAN, and when a run to the waterfront or Little Italy makes sense. Spoiler: sooner than at almost any other US airport.
Every SAN lounge and how to get in
The full lounge table for San Diego: Aspire, Chase Sapphire, Delta Sky Club and United Club, with access methods, locations and hours.
Sleeping at San Diego airport
The honest overnight map: why airside closes, where the landside benches are, and when the Harbor Island hotels are the smarter call.
Priority Pass at SAN
Which San Diego lounges take Priority Pass, how the once a year Sapphire visit works, and what to do when the Aspire hits capacity.
SAN transit and connection guide
Minimum connection times, the T1 to T2 shuttle playbook, and how the single runway shapes delays. Built for the tight connection sweat.
Nearby
Related airports
Los Angeles (LAX)
The giant up the coast, about 120 miles north. Far more lounges, far longer transfers, and a completely different layover game.
Phoenix Sky Harbor (PHX)
A major American Airlines hub about an hour east by air, and the usual connection point when San Diego has no nonstop.
Las Vegas (LAS)
Harry Reid International, about an hour by air. A frequent connection on Southwest itineraries out of SAN.
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