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HLN - SAN

$129 Find Cheap Flights from Helena to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to San Diego departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to San Diego, as well as popular online travel agencies
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Cheap Flight Deals from Helena to San Diego (HLN-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Helena to San Diego

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Helena to San Diego.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:45 am - 9:10 amHLN-SAN
4h 25m1 stop
6:20 am - 12:35 pmSAN-HLN
5h 15m1 stop
$237Delta
Find Deal
Wed, Mar 26 - Sat, Mar 29
5:45 am - 8:57 amHLN-SAN
4h 12m1 stop
5:10 pm - 10:33 pmSAN-HLN
4h 23m1 stop
$349Delta
Find Deal
Wed, Jul 2 - Mon, Jul 7
4:41 pm - 11:59 pmHLN-SAN
8h 18m1 stop
9:55 pm - 4:04 pmSAN-HLN
17h 09m2 stops
$421Alaska Airlines
Find Deal
Thu, Feb 6 - Mon, Feb 10
4:41 pm - 7:36 amHLN-SAN
15h 55m2 stops
7:55 pm - 4:04 pmSAN-HLN
19h 09m2 stops
$444Alaska Airlines
Find Deal
Thu, Feb 6 - Mon, Feb 10
4:10 pm - 8:42 pmHLN-SAN
5h 32m1 stop
8:55 pm - 3:43 pmSAN-HLN
17h 48m2 stops
$480Alaska Airlines
Find Deal
Wed, Jul 2 - Mon, Jul 7
4:41 pm - 11:59 pmHLN-SAN
8h 18m1 stop
7:00 am - 4:04 pmSAN-HLN
8h 04m1 stop
$522Alaska Airlines
Find Deal
Thu, Feb 6 - Mon, Feb 10
6:30 am - 10:59 pmHLN-SAN
17h 29m2 stops
6:43 am - 1:40 pmSAN-HLN
5h 57m1 stop
$602United Airlines
Find Deal
Wed, Mar 26 - Sat, Mar 29
4:10 pm - 11:59 pmHLN-SAN
8h 49m2 stops
8:55 pm - 3:43 pmSAN-HLN
17h 48m2 stops
$631Alaska Airlines
Find Deal
Wed, Jul 2 - Mon, Jul 7
6:30 am - 10:59 pmHLN-SAN
17h 29m2 stops
6:04 pm - 1:30 pmSAN-HLN
18h 26m2 stops
$711United Airlines
Find Deal
Wed, Mar 26 - Sat, Mar 29
6:30 am - 10:59 pmHLN-SAN
17h 29m2 stops
6:04 pm - 1:30 pmSAN-HLN
18h 26m2 stops
$730United Airlines
Find Deal
Wed, Mar 26 - Sat, Mar 29

Flights from Helena to San Diego - Travel Insights & Trends

Get data-powered insights and trends into flights from Helena to San Diego to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Helena to San Diego?

The average price of all round-trip flights from Helena to San Diego clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to San Diego on a Wednesday and more expensive on a Monday. On your return trip to Helena, you should consider flying back on a Saturday, and avoid Wednesdays for better deals.

Good to know

High season

March

Cheapest flight

$129
Most popular time to fly and prices are also 28% lower on average.
Flight from Helena to San Diego

When to book flights from Helena to San Diego

Are your dates flexible? Find out the best times to travel from Helena to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helena to San Diego

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

    In the last 3 days, the lowest price for a flight from Helena to San Diego was $129 for a one-way ticket and $237 for a round-trip.

  • Do I need a passport to fly between Helena and San Diego?

    No, a passport isn't needed to fly from Helena to San Diego. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Helena to San Diego?

    Helena and San Diego are both served by 1 main airport. You will leave Helena from Helena and will be arriving at San Diego.

  • Which aircraft models fly most regularly from Helena to San Diego?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helena to San Diego?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Helena and San Diego, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Helena to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Helena with another airline. Booking your flights between Helena and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Helena to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Helena to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helena to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 8508 reviews
8.2Boarding
7.9Entertainment
8.6Crew
7.3Food
8.0Comfort
Airline reviews

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

6.0 GoodAnonymous, Nov 2024MSP - LAX
Read more Delta reviews

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

Rough day of travel all the way around. Wrong info given to us multiple times and mistakes in their booking making our trip 10 hours longer than planned. I’m bummed because I fly Delta all the time and love them. Mistakes happen. Just bummed that this was a rare trip our whole family was traveling together.

Meh. A late flight meant I missed my connections, and a 2pm LAX arrival turned into gettin in after midnight.

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

Everything you need to know for your flight from Helena to San Diego

Information on your arrival and departure airports

San Diego (SAN)
Helena (HLN)

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