S$ 135 Cheap Flights from Helena to San Diego (HLN-SAN)

Cheap Flights from Helena to San Diego

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Cheap Flights from Helena to San Diego starting at S$ 135

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
Round-trip

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

Cheapest time to fly from Helena to San Diego

Explore the best time to buy affordable tickets to San Diego with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

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

Cheapest Airlines flying from Helena to San Diego

Compare prices from various providers below to understand which option best suits your travel needs, before enjoying a comfortable journey with a trusted airline from Helena to San Diego.

Alaska Airlines

From S$ 135

Delta Air Lines

From S$ 161

United Airlines

From S$ 353

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
HLN
16:41
6h 52m
1 transfer
SAN
22:33
Helena Regional Airport - San Diego International Airport
Tue, Jan 21Alaska Airlines
S$ 135
HLN
16:41
6h 52m
1 transfer
SAN
22:33
Helena Regional Airport - San Diego International Airport
Tue, Jan 21Alaska Airlines
S$ 135
Find More Flights

Frequently Asked Questions

When to buy flight tickets from Helena (HLN) to San Diego (SAN) the cheapest?
Airlines adjust prices for flights from Helena to San Diego based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from Helena (HLN) to San Diego (SAN) cost?
According to Trip.com's data, the lowest price is around S$ 519.
What is the transportation method from the main airport to downtown in San Diego?
- The distance from San Diego International Airport to downtown is about 3km, by taxi about 20 minutes.
How many airports in San Diego?
There are 7 airports near San Diego: San Diego International Airport, McClellan-Palomar Airport, San Diego Montgomery Field, Miramar Naval Air Station, North Island Naval Air Station, San Diego Brown Municipal Airport and San Diego Gillespie Field.

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.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Find cheapest flight ticket from Helena to San Diego

Cheapest direct flight price	S$ 134
Off-season for travel	February
Peak season for travel	October
Flight distance	1,604.66km
Popular airline	Alaska Airlines