Cheap Flights from Helena (HLN) to San Diego (SAN)

Popular airlines from Helena, MT (HLN-Helena Regional) to San Diego Intl. Airport (SAN)

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Find the cheapest month to fly from Helena (HLN) to San Diego (SAN)

February is typically the cheapest month to fly

From CA $301 - CA $811 per traveller.

Graph displaying average flight prices per month

Flight from Helena to San Diego (HLN - SAN) route information
Origin airport
Helena Regional
Destination airport
San Diego Intl.
Distance
1595 km

Helena to San Diego Flights

The easy way to book your flights from Helena to San Diego 

With Expedia, it’s simple to find and book flights to San Diego from Helena whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to San Diego Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Helena to San Diego today, tomorrow, or this week.  

 

Save dollars with cheap flights from Helena Regional, HLN to San Diego Intl., SAN 

Sort your search results by price to find great deals on your flight from Helena to San Diego—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Diego from Helena currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to San Diego  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to San Diego from Helena 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Diego with Expedia today.

Frequently asked questions

How much is a flight from Helena Regional Airport to San Diego Intl. Airport (SAN)?
Round-trip tickets from HLN to SAN start from . This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from HLN to San Diego Intl. Airport (SAN)?
Each air carrier has its own set of terms and conditions. If you decide to cancel your getaway, head to our Customer Service Portal.
How do I find cheap flights from Helena Regional Airport to SAN that have flexible change policies?
Many airlines will allow you to move your flight without charging a fee. All you pay is the cost difference between the two flights. When searching for Helena Regional Airport to San Diego Airport flights, you'll see a "No change fees" box for you to tick.
How many hours is the flight from HLN to San Diego Intl. Airport (SAN)?
The flight time between Helena Regional Airport and SAN is 4 hours and 18 minutes. If you get peckish on longer flights, pack a few healthy snacks in your carry-on luggage.
How far is the flight from Helena Regional Airport (HLN) to San Diego Intl. Airport (SAN)?
The flight distance from Helena to San Diego is 1,600 kilometres. Bring along a drink, a few snacks and an interesting novel to read. Keep yourself busy in the air and the hours will zip by.
Which airlines fly direct from HLN to SAN?
Unfortunately, there are no airlines that fly direct between Helena Regional Airport (HLN) and San Diego Intl. Airport (SAN). You'll need to book a flight with at least one stop.
Are Helena Regional Airport to San Diego Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally score a bargain, with some super cheap airfares from HLN to San Diego Intl. Airport (SAN) popping up a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates the best flight deals continually — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices that far in advance.

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