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Low Price Flights from Helena to San Diego
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Cheap Flight Deals from Helena to San Diego

Whether you’re going for a one-way or round-trip to San Diego, we’ve got you covered! Check out these different flight options from Helena below.

  • One way
  • Return
      • HLN16:41
        6h 52m
        1 stop
        SAN22:33
        Wed, Jan 8|Helena - San Diego|Alaska Airlines
        AU$ 178AU$ 690
        74% OFF
        74% OFF
        AU$ 690AU$ 178

        Choose Alaska Airlines flights from Helena to San Diego. The one-way connecting flight with Alaska Airlines departs from Helena Regional Airport on Wed, Jan 8, arriving at San Diego International Airport. One-way Prices start from AU$ 178 including taxes and charges.

      • HLN13:03
        6h 28m
        1 stop
        SAN18:31
        Wed, Jan 8|Helena - San Diego|Delta Air Lines
        AU$ 184AU$ 690
        73% OFF
        73% OFF
        AU$ 690AU$ 184

        Choose Delta Air Lines flights from Helena to San Diego. The one-way connecting flight with Delta Air Lines departs from Helena Regional Airport on Wed, Jan 8, arriving at San Diego International Airport. One-way Prices start from AU$ 184 including taxes and charges.

      • HLN05:30
        4h 40m
        1 stop
        SAN09:10
        Wed, Dec 11|Helena - San Diego|Delta Air Lines
        AU$ 194AU$ 690
        72% OFF
        72% OFF
        AU$ 690AU$ 194

        Choose Delta Air Lines flights from Helena to San Diego. The one-way connecting flight with Delta Air Lines departs from Helena Regional Airport on Wed, Dec 11, arriving at San Diego International Airport. One-way Prices start from AU$ 194 including taxes and charges.

      • HLN15:29
        7h 16m
        1 stop
        SAN21:45
        Tue, Dec 31|Helena - San Diego|Alaska Airlines
        AU$ 239
        AU$ 239

        Choose Alaska Airlines flights from Helena to San Diego. The one-way connecting flight with Alaska Airlines departs from Helena Regional Airport on Tue, Dec 31, arriving at San Diego International Airport. One-way Prices start from AU$ 239 including taxes and charges.

      • HLN06:45
        5h 33m
        1 stop
        SAN11:18
        Wed, Dec 11|Helena - San Diego|United Airlines
        AU$ 239
        AU$ 239

        Choose United Airlines flights from Helena to San Diego. The one-way connecting flight with United Airlines departs from Helena Regional Airport on Wed, Dec 11, arriving at San Diego International Airport. One-way Prices start from AU$ 239 including taxes and charges.

      • HLN05:45
        6h
        1 stop
        SAN10:45
        Thu, Dec 19|Helena - San Diego|Delta Air Lines
        AU$ 272
        AU$ 272

        Choose Delta Air Lines flights from Helena to San Diego. The one-way connecting flight with Delta Air Lines departs from Helena Regional Airport on Thu, Dec 19, arriving at San Diego International Airport. One-way Prices start from AU$ 272 including taxes and charges.

      • HLN15:29
        9h 30m
        1 stop
        SAN23:59
        Wed, Jan 1|Helena - San Diego|Alaska Airlines
        AU$ 336
        AU$ 336

        Choose Alaska Airlines flights from Helena to San Diego. The one-way connecting flight with Alaska Airlines departs from Helena Regional Airport on Wed, Jan 1, arriving at San Diego International Airport. One-way Prices start from AU$ 336 including taxes and charges.

      • HLN05:45
        7h 38m
        1 stop
        SAN12:23
        Wed, Jan 1|Helena - San Diego|Delta Air Lines
        AU$ 342
        AU$ 342

        Choose Delta Air Lines flights from Helena to San Diego. The one-way connecting flight with Delta Air Lines departs from Helena Regional Airport on Wed, Jan 1, arriving at San Diego International Airport. One-way Prices start from AU$ 342 including taxes and charges.

      • HLN14:25
        7h 15m
        1 stop
        SAN20:40
        Wed, Jan 8|Helena - San Diego|United Airlines
        AU$ 425
        AU$ 425

        Choose United Airlines flights from Helena to San Diego. The one-way connecting flight with United Airlines departs from Helena Regional Airport on Wed, Jan 8, arriving at San Diego International Airport. One-way Prices start from AU$ 425 including taxes and charges.

      • HLN05:45
        17h 44m
        1 stop
        SAN22:29
        Tue, Dec 24|Helena - San Diego|Delta Air Lines
        AU$ 426
        AU$ 426

        Choose Delta Air Lines flights from Helena to San Diego. The one-way connecting flight with Delta Air Lines departs from Helena Regional Airport on Tue, Dec 24, arriving at San Diego International Airport. One-way Prices start from AU$ 426 including taxes and charges.

      • HLN13:00
        3h 5m
        Nonstop
        SAN14:00
        Wed, Dec 4|Helena - San Diego|Alaska Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Best Time to Book Flights from Helena to San Diego

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to San Diego from Helena have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Top Airlines Flying from Helena to San Diego

We have a range of prices from different airlines providing flights from Helena to San Diego. Check below for the journey which best suits your travel needs.

Alaska Airlines
From AU$ 178
Delta Air Lines
From AU$ 184
United Airlines
From AU$ 239

Find more flights and airlines

Alternative Routes from Helena to San Diego

There are various non-direct routes from Helena to San Diego which could be cheaper and faster! Check out these alternative options to see if they could work for your trip.

  • Cheapest
    Alaska Airlines
    HLN
    16:41
    6h 52m
    1 transfer
    SAN
    22:33
    Helena Regional Airport - San Diego International Airport
    Wed, Jan 8Alaska Airlines
    AU$ 178
  • Alaska Airlines
    HLN
    16:41
    6h 52m
    1 transfer
    SAN
    22:33
    Helena Regional Airport - San Diego International Airport
    Wed, Jan 8Alaska Airlines
    AU$ 178
    Find More Flights

FAQ

How to find a cheap flight from Helena to San Diego

Understanding the common pitfalls when booking your flight tickets can help you save massively when it comes time to fly. We’ve listed our six essential steps to keep in mind when you’re booking flight tickets to help you find the best price.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Helena to San Diego

Cheapest direct flight priceAU$ 177
Off-season for travelDecember
Peak season for travelSeptember
Flight distance1,604.66km
Popular airlineAlaska Airlines

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