San Diego

$179+ Cheap flights from Helena to San Diego (HLN - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SAN
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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1. Tell us where you want to go
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Cheap flight deals from Helena to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

September

Cheapest in

January

Round-trip from

$258
(Alaska Airlines)

One-way from

$179
(Delta)
Provider with most accurate pricing for Helena-San Diego flight deals.
Provider most trusted by Cheapflights users for Helena-San Diego flights.
High demand for flights, 40% potential price rise
Best time to find cheap flights, 42% potential price drop
From Helena to San Diego
One-way flight from Helena to San Diego

Find flight deals from Helena to San Diego

Cheapest flights from Helena to San Diego
Explore the most affordable flight options available from Helena to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/265:45 amHLN - SAN
1 stop4h 15mDelta
Tue 12/35:14 pmSAN - HLN
1 stop4h 23mDelta
Deal found 10/29$346
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/296:30 amHLN - SAN
1 stop6h 18mUnited Airlines
Thu 12/57:00 amSAN - HLN
1 stop5h 57mUnited Airlines
Deal found 10/30$442
This Alaska Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/213:29 pmHLN - SAN
1 stop18h 01mAlaska Airlines
Fri 12/278:19 amSAN - HLN
2 stops29h 30mAlaska Airlines
Deal found 10/30$647

Find flights from Helena to San Diego within your budget

Customize your flight search to find flights from Helena to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Sun 12/22

5:45 am-9:10 am

1 stop4h 25m

$179

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Tue 12/24

3:29 pm-8:16 pm

2 stops29h 47m

$201

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Sun 12/22

6:25 am-9:25 am

2 stops28h 00m

$382

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Wed 2/5

4:41 pm-10:33 pm

1 stop6h 52m

San Diego

Mon 2/10

6:52 pm-4:04 pm

1 stop20h 12m

$258

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Tue 11/26

5:45 am-9:00 am

1 stop4h 15m

San Diego

Tue 12/3

5:14 pm-10:37 pm

1 stop4h 23m

$346

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Fri 11/29

6:30 am-11:48 am

1 stop6h 18m

San Diego

Thu 12/5

7:00 am-1:57 pm

1 stop5h 57m

$442

Flights are sorted by cheapest first

Deals found on 10/29

Compare providers for flights from Helena to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helena to San Diego in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helena-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helena-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helena to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Helena with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Helena to San Diego

Get recent, data-driven insights about flights from Helena to San Diego including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Helena to San Diego?

Currently, September is the cheapest month in which you can book a flight from Helena to San Diego (average of $266). Flying from Helena to San Diego in March is currently the most expensive (average of $338). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated October 31, 2024.
8.0
Very good
9,420 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.1

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

8.0
Very good
9,420 reviews
8.0
Very good
9,420 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.1

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

8.0
Very good
8,835 reviews
8.0
Very good
9,420 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.1

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

7.4
Good
9,240 reviews
8.0
Very good
9,420 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.1

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

Find useful and relevant information for your journey from Helena to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Helena to San Diego for under $300 on Cheapflights?

    Yes, there are multiple flights from Helena to San Diego for under $300. The cheapest flight booked recently is on Alaska Airlines for just $258, but on average you can expect to pay $348.

  • What are the cheapest airlines flying from Helena to San Diego round-trip?

    Our cheapest airline available from Helena to San Diego is Alaska Airlines. Our recent data shows that you can find tickets from as low as $258 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $346 and $442 round-trip. Alaska Airlines is currently priced 52% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Helena to San Diego one-way?

    One-way options have recently been found by users for as low as $179 on Delta. Other airlines that offer cheap prices include Alaska Airlines from $201 and United Airlines from $382 one-way.

  • What does HLN to SAN mean?

    Helena Airport is HLN and San Diego Airport is SAN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Helena to San Diego that include extra baggage allowance?

    The amount of baggage you can bring on your Helena to San Diego flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Helena to San Diego with specific airlines?

    Yes, Cheapflights allows you to browse and filter Helena to San Diego flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Helena to San Diego that include hotel bookings?

    Yes. In addition to deals on Helena to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to San Diego.

  • Can I find deals for business class flights from Helena to San Diego?

    Yes. Cheapflights offers flight deals from Helena to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Helena to San Diego that allow pets onboard?

    Many airlines flying from Helena to San Diego offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Helena to San Diego?

    Yes, you can often find last-minute deals on Helena to San Diego flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Helena to San Diego flight deals updated?

    The Helena to San Diego flight deals you see on this page were last updated on 10/30.

  • What is the cheapest month to book a flight from Helena to San Diego?

    Currently, September is the cheapest month in which you can book a flight from Helena to San Diego (average of $266). Flying from Helena to San Diego in March is currently the most expensive (average of $338). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Helena to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Helena to San Diego

Discover the top airline that operate flights from Helena to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$336Average$562FlexibilityNo cancel feeOn-timeN/A
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