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

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How to find the cheapest flight from
Helena (HLN) to San Diego (SAN)

All the information you need to plan the best HLN to SAN flight in 2021: compare Helena to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
HLN - SAN
Price
$191 - $506
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches

Popular in

July

High demand for flights, 35% potential price rise

Cheapest in

June

Best time to find cheap flights, 42% potential price drop

Average price

$191

Average for round-trip flights in June 2021

Round-trip from

$191

From Helena to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Helena to San Diego?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Helena to San Diego?

Users have found that booking a flight from Helena to San Diego at least 17 days early can save you up to 27% on average compared to booking a flight this week. If booking 17 days before your flight isn’t an option for you, users have found flights from Helena to San Diego for as little as $73 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $98 for flights departing within the next 3 days.

What is the cheapest month to fly from Helena to San Diego?

Our data shows that July tends to be the cheapest month to fly to San Diego from Helena. Users have commonly found prices around $80 for the month, but tickets can be as low as $44. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Helena to San Diego (HLN - SAN)?

It’s optimal to fly from Helena to San Diego in the afternoon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight at noon.

Cheap flights from Helena to San Diego in June, July 2021

The best prices found for HLN to SAN flights for June, July
3 Jul - 13 Jul
$381pp
HLN
Helena
Delta
   
2 STOPS
SAN
San Diego
SAN
San Diego
Delta
   
2 STOPS
HLN
Helena
3 Jul - 14 Jul
$384pp
HLN
Helena
Delta
   
2 STOPS
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
HLN
Helena
3 Jul - 13 Jul
$403pp
HLN
Helena
United Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
United Airlines
 
1 STOP
HLN
Helena

Helena to San Diego 2021 flight deals

Cheap flights to San Diego from Helena found for this year
29 Sep - 2 Oct
$237pp
HLN
Helena
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
HLN
Helena
29 Sep - 2 Oct
$274pp
HLN
Helena
Delta
   
2 STOPS
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
HLN
Helena
14 Aug - 18 Aug
$277pp
HLN
Helena
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
HLN
Helena

Last minute flights from Helena to San Diego

Late deals on round-trip flights to San Diego from Helena, departing today and this week
30 Jun - 13 Jul
$421pp
HLN
Helena
Delta
   
2 STOPS
SAN
San Diego
SAN
San Diego
Delta
   
2 STOPS
HLN
Helena
30 Jun - 13 Jul
$424pp
HLN
Helena
Delta
   
2 STOPS
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
HLN
Helena
2 Jul - 14 Jul
$445pp
HLN
Helena
United Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
United Airlines
 
1 STOP
HLN
Helena

One-way flights to San Diego from Helena

The cheapest one-way flights from Helena to San Diego
10:55 am - 12:47 pm
Multiple Airlines
3 Stops
50h 52m
HLN - SAN
Multiple Airlines
$279
Kiwi.com
10:45 am - 7:30 pm
United Airlines
2 Stops
9h 45m
HLN - SAN
United Airlines
$315
United
10:55 am - 5:00 am
Alaska Airlines
2 Stops
19h 05m
HLN - SAN
Alaska Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Helena</span> to <span class="emphasized">San Diego</span> flights.

Flight FAQs

From Helena to San Diego

Are flight prices decreasing from Helena to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Helena and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Helena to San Diego to control the spread of COVID-19?

New policies can now be found on Alaska Airlines to help keep travelers safe while flying. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Helena to San Diego. Policies will vary by airline.

Which airlines flying from Helena to San Diego have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Delta, United Airlines, and Alaska Airlines flying from Helena to San Diego have implemented new flexible cancellation policies.

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 Delta for just $237, but on average you can expect to pay $373.

Are there nonstop flights from Helena to San Diego for under $200 on Cheapflights?

There are no nonstop flights from Helena to San Diego, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Helena to San Diego for under $500?

There are currently 20+ open flights from Helena to San Diego within the next 7 days for less than $500.

Does it rain more in Helena or San Diego?

Expected rainfall in Helena is less than in San Diego. You can expect this to be the case over the next 17 days.

Is Helena weather warmer or cooler than San Diego?

You can imagine temperatures to be in the 88 °F range in July. The weather in San Diego is generally colder than Helena's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Helena to San Diego?

For as low as $407, Delta can have you in San Diego from Helena in 4h 13m. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Flying on Delta is currently your cheapest option to San Diego, with prices starting at $237. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $285 and $325, respectively. These flights start at 28% lower than the current average price 3 months from now.

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

$199 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on United Airlines, with prices from $270.

Alternative routes for Helena to San Diego

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

Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Helena to San Diego.
Average temperature for June in San Diego
75.2 °F
Avg rainfall for June in San Diego
0.1 ″

Airports servicing Helena

Airports servicing San Diego

Top 3 airlines flying from Helena to San Diego

The chart below displays the airlines Cheapflights users traveling from Helena to San Diego choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$119 $228 No cancel fee 69%
Alaska Airlines
$139 $306 No cancel fee 75%
Delta
$129 $357 No cancel fee N/A
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