Popular airlines from Helena to San Diego
Nok AirNok Air
Thai AirAsiaThai AirAsia
Thai Airways InternationalThai Airways International
Thai AirAsia XThai AirAsia X
Hong Kong AirlinesHong Kong Airlines
AirAsiaAirAsia
ScootScoot
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 40% on select hotels after you book a flight*
Find the cheapest month to fly from Helena (HLN) to San Diego (SAN)
February is typically the cheapest month to fly
From ฿7,152 - ฿19,249 per traveller.
Graph displaying average flight prices per month
Nearby Cities
Expedia's Latest Trends
Hotels
Flights
Flights from WuxuFlights from Bangkok (DMK) to Nakhon Si Thammarat (NST)Flights from Bangkok (BKK) to Fuzhou (FOC)UnitedFlights from Crooked Creek to NaritaFlights from Bangkok (DMK) to Haikou (HAK)Flights to PatagoniaFlights to MyanmarFlights from Sa Khu (HKT) to Melbourne (MEL)Flights from Taoyuan City (TPE) to Los Angeles (LAX)
Activities