Helena to San Diego (HLN–SAN) — Airlines, Schedules & Connections

HLN Airport Page →
airlines charter/private
On-time Some delays Frequent delays
Connecting Flight Schedule 3 1-stop flights
No nonstop service between HLN and SAN. Nearest airports to HLN with scheduled service: Bozeman Yellowstone International Airport (BZN, 70 mi) · Missoula Montana Airport (MSO, 102 mi) · Bert Mooney Airport (BTM, 51 mi)
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 3 hubs
SLC Salt Lake City 4h 16m AFDLVS → AFASBA Salt Lake City (SLC) to San Diego flights
SEA Seattle 5h 41m AS → AFASAY Seattle (SEA) to San Diego flights
DEN Denver 5h 54m UA → ACASCM Denver (DEN) to San Diego flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Helena to San Diego
Connecting service available through multiple hubs.
-1h behind

While no nonstop service exists between HLN and SAN, 1-stop connecting options are available.

Also explore Browse available seat maps HLN Routes SAN Routes HLN Live Flights SAN Live Flights SAN Delays
All flights from San Diego (SAN) San Diego to Helena flights
Connections

Connection Landscape

1-stop and 2-stop options for HLN to SAN.
1-STOP
One-Stop Connections
3
Hubs
~4h
Fastest
~5h
Longest
SLC ~4h 16m SEA ~5h 41m DEN ~5h 54m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
217
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
HLN → SAN
59%
Frequent delays expected. Consider flexible booking.
Arriving
59%
Return
SAN → HLN
49%
Frequent delays expected. Consider flexible booking.
Departing
49%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SAN delays →
Alternatives

Other ways to reach San Diego from Helena

Nearby airports with service to San Diego International Airport.
Metric HLN→SAN BTM→SAN GTF→SAN
Distance from HLN – 51 mi 67 mi
Nonstop airlines – 1 1
Weekly flights – – –
Butte (BTM) to San Diego flights · Great Falls (GTF) to San Diego flights · Bozeman (BZN) to San Diego flights
Airports within 200 miles of HLN with service to San Diego International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-1h
San Diego is 1 hour behind Helena.
HLN: MDT · SAN: PDT

When it's 6:00 PM in Helena, it's 5:00 PM in San Diego.
Facts

HLN–SAN Quick Facts

Key statistics for the Helena to San Diego route.
Route details
Time difference-1 hour
Airlines (nonstop)0
1-stop connectionsAvailable
Origin: HLN
Full nameHelena Regional Airport
IATA / ICAOHLN / KHLN
TimezoneAmerica/Denver
Passengers/yr0.2M
Elevation3,877 ft / 1,182 m
Destination: SAN
Full nameSan Diego International Airport
IATA / ICAOSAN / KSAN
TimezoneAmerica/Los_Angeles
Passengers/yr25.6M
Elevation17 ft / 5 m
FAQ

Frequently Asked Questions

Common questions about HLN to SAN flights.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Salt Lake City, Seattle–Tacoma and Denver.
On a single ticket, yes. Your bags are checked through to SAN and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
San Diego is 1 hour behind Helena.
Yes, return flights from SAN to HLN are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BTM, GTF and BZN. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Salt Lake City, Seattle–Tacoma and Denver. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Butte (BTM), Great Falls (GTF) and Bozeman (BZN).