San Diego to Thornton flights
Thornton lies 1,349 km (839 mi) north-east of San Diego, +1 h on the clock. What the numbers say about getting there, and where to book.
A nonstop flight would take about 2 h 29 min gate to gate, based on the distance and typical cruise speed with taxi and climb allowed for; connecting itineraries add the layover on top.
| San Diego | Thornton | |
|---|---|---|
| Country | United States | United States |
| Population | 1.4 million | 133,451 |
| Elevation | 20 m (66 ft) | 1,635 m (5,364 ft) |
| Time now | UTC-7 (America/Los_Angeles) | UTC-6 (America/Denver) |
| Nearest large airport | SAN, 3 km out | DEN, 25 km out |
| Postal codes | 92101–92199 | 80241 |
Clocks in Thornton are 1 h ahead of San Diego right now, so a 2 h 29 min journey lands 3 h 29 min later by the destination clock.
Airports at each end
Leaving San Diego
San Diego is served by 3 airports with scheduled flights within 100 km. The closest large one is San Diego International Airport (SAN), 3 km (2 mi) from the centre, with a longest runway of 9,401 ft, which limits it to short and medium-haul aircraft. The alternatives are General Abelardo L. Rodriguez International Airport (TIJ, 27 km), McClellan-Palomar Airport (CLD, 47 km).
Arriving in Thornton
Thornton is served by 2 airports with scheduled flights within 100 km. The closest large one is Denver International Airport (DEN), 25 km (16 mi) from the centre, whose 16,000-ft runway is long enough for long-haul wide-body aircraft. The alternatives are Rocky Mountain Metropolitan Airport (BJC, 13 km).
| Airport | Code | From centre | Longest runway | Elevation |
|---|---|---|---|---|
| Denver International Airport | DEN | 25 km (16 mi) | 16,000 ft | 5,431 ft |
| Rocky Mountain Metropolitan Airport (regional) | BJC | 13 km (8 mi) | 9,000 ft | 5,673 ft |
Book a flight to Thornton
Our airline partner is activating live fares for this site; the search below opens the moment that is done. Hotels can be booked now.
Flights are sold here by AirOrSeaTravel through our booking partner, Nuitée, which takes the payment; the ticket is issued by the airline. How this works.
Staying in Thornton
Live rooms and prices for Thornton are in the search below.
Book a hotel in Thornton
Live rooms and prices from our booking partner, booked and paid for here. Free cancellation is marked where it applies.
Common questions
How far is Thornton from San Diego?
1,349 km (839 mi) in a straight line, north-east of San Diego.
How long does it take to get from San Diego to Thornton by air?
About 2 h 29 min, estimated from distance and typical speeds for a nonstop flight. Timetables and traffic decide the real figure.
Is there a time difference between San Diego and Thornton?
Thornton is 1 h ahead at the moment (America/Denver against America/Los_Angeles).
Which airports are used for San Diego to Thornton flights?
Typically San Diego International Airport (SAN) to Denver International Airport (DEN); Thornton also has BJC.
Where these facts come from
- GeoNames (CC BY 4.0): population, elevation, time zone, postal codes
- Wikidata (CC0): area, sister cities, visitor numbers, heritage listings, stations and ports
- OurAirports (public domain): airports, runways
- Natural Earth (public domain): map outlines
Data compiled 14 September 2026. Hotel and hostel figures are from our booking partner’s catalogue on that date. Journey times on this page are estimates from distance, not timetables; check the operator before you rely on one.