$278 Cheap flights from Helena Regional to San Diego Intl. (HLN to SAN)

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Find The Best Dates To Fly from Helena Regional to San Diego Intl.

Amazing HLN to SAN Flight Deals

The cheapest flights to San Diego Intl. found within the past 7 days were $249 round trip and $278 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Feb 4 - Sun, Feb 9
HLN
Helena
SAN
San Diego
$249 Roundtrip, found 20 hours ago
$249
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Tue, Feb 4 from Helena to San Diego, returning Sun, Feb 9, priced at $249 found 20 hours ago
Wed, Jan 15 - Fri, Jan 24
HLN
Helena
SAN
San Diego
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 15 from Helena to San Diego, returning Fri, Jan 24, priced at $254 found 3 days ago
Thu, Jan 9 - Wed, Jan 15
HLN
Helena
SAN
San Diego
$255 Roundtrip, found 2 days ago
$255
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Jan 9 from Helena to San Diego, returning Wed, Jan 15, priced at $255 found 2 days ago
Tue, Feb 4 - Sun, Feb 9
HLN
Helena
SAN
San Diego
$284 Roundtrip, found 20 hours ago
$284
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Tue, Feb 4 from Helena to San Diego, returning Sun, Feb 9, priced at $284 found 20 hours ago
Fri, Jan 10 - Mon, Jan 13
HLN
Helena
SAN
San Diego
$289 Roundtrip, found 4 days ago
$289
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Jan 10 from Helena to San Diego, returning Mon, Jan 13, priced at $289 found 4 days ago
Thu, Jan 9 - Wed, Jan 15
HLN
Helena
SAN
San Diego
$330 Roundtrip, found 2 days ago
$330
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Jan 9 from Helena to San Diego, returning Wed, Jan 15, priced at $330 found 2 days ago
Tue, Dec 17 - Wed, Dec 18
HLN
Helena
SAN
San Diego
$346 Roundtrip, found 1 day ago
$346
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Dec 17 from Helena to San Diego, returning Wed, Dec 18, priced at $346 found 1 day ago
Fri, May 16 - Sun, May 18
HLN
Helena
SAN
San Diego
$406 Roundtrip, found 3 days ago
$406
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, May 16 from Helena to San Diego, returning Sun, May 18, priced at $406 found 3 days ago
Mon, Dec 16 - Tue, Dec 17
HLN
Helena
SAN
San Diego
$423 Roundtrip, found 1 day ago
$423
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Dec 16 from Helena to San Diego, returning Tue, Dec 17, priced at $423 found 1 day ago
Mon, Dec 16 - Wed, Dec 18
HLN
Helena
SAN
San Diego
$433 Roundtrip, found 1 day ago
$433
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Dec 16 from Helena to San Diego, returning Wed, Dec 18, priced at $433 found 1 day ago

Frequently asked questions

Can I catch a flight from HLN to SAN right now?
Be sure to go to the Covid-19 Travel Advisor to find out if there are any current travel advice reports or quarantine requirements in place in San Diego Intl. Airport (SAN) when flying from Helena Regional Airport.
Are there direct flights from Helena Regional Airport to SAN?
You can’t fly straight from Helena Regional Airport (HLN) to San Diego Intl. Airport (SAN), but don’t fret. Alaska Airlines, Delta and United Airlines operate flights with just one stopover.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to San Diego Airport, please visit our Customer Service Portal.
How long is the flight from HLN to San Diego Intl. Airport (SAN)?
The travel time between Helena Regional Airport (HLN) and San Diego Intl. Airport (SAN) is usually about 4 hours and 11 minutes. Make your trip comfortable by downloading a movie or a few TV shows on your laptop or phone and enjoying them with your seat fully reclined.
What is the flight distance from Helena Regional Airport to San Diego Intl. Airport (SAN)?
The flight distance from HLN to San Diego Intl. Airport (SAN) is 1,000 mi. Be sure to pack a magazine or a few podcasts to make your trip more enjoyable.
What airlines fly from HLN to San Diego Intl. Airport (SAN)?
No airlines are currently offering a direct flight between HLN and SAN. Save time and avoid irritating stopovers by exploring the most efficient routes well in advance.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Southwest Airlines, Alaska Airlines or United Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Helena Regional
Traveling To
San Diego Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$249

Route Info

Flight path for flights from Helena Regional Airport to San Diego International Airport.


Origin:
HLN - Helena Regional Airport
Destination:
SAN - San Diego International Airport
Distance:
1,034.00 miles


Discover our best flights from Helena HLN to San Diego SAN. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Helena HLN to San Diego SAN at the right price  

Airfares to San Diego SAN from Helena HLN currently cost between $249 and $433. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Helena HLN to San Diego SAN 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Helena HLN to San Diego SAN on Travelocity starting at $278. Prices and availability subject to change. Additional terms may apply. 

 

Get to San Diego SAN from Helena HLN quicker with direct flights. 

Get to San Diego faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SAN from HLN to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Helena HLN to San Diego SAN

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SAN from HLN. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Helena HLN to San Diego SAN today 

If you’re flexible about when you travel, February is usually the cheapest month to fly from Helena HLN to San Diego SAN. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to San Diego SAN from Helena HLN 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SAN from HLN have this option.  

 

Travel with confidence when you book flights to San Diego SAN from Helena HLN with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.