Cheap flights from Helena to San Francisco from $187
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to San Francisco departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Helena to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to San Francisco?
The cheapest day to depart from Helena to San Francisco is on a Monday when prices can be found for as low as $327. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $679.
What is the cheapest time of day to depart on your flight to San Francisco?
Our data shows that the cheapest Helena to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $356. Flights in the morning are often more expensive with an average ticket price of $421.
What is the cheapest airline that flies from Helena to San Francisco?
Alaska Airlines, Hawaiian Airlines, and United Airlines are the most popular carriers operating from Helena to San Francisco
What airlines fly to San Francisco?
Delta, United Airlines and Alaska Airlines are the top three most popular airlines that fly to San Francisco from Helena according to our data. Delta is the first choice among our users, with 35% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 5 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.
When to book flights from Helena to San Francisco
Cheap Helena to San Francisco (HLN to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Helena to San Francisco
How far is Helena to San Francisco by plane?
The distance between Helena and San Francisco is about 805.5 mi. 5h 15m is a normal flight duration for this route.
When did momondo last update prices for flights from Helena Airport to San Francisco Airport?
Prices for flights from Helena Airport to San Francisco Airport are updated daily.
How many operators does momondo search for flights from Helena Airport to San Francisco Airport?
The number of operators available for flights from Helena Airport to San Francisco Airport is 2 as of April 2025.
How old do you have to be to fly from Helena Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Helena to San Francisco?
Based on momondo bookings for flights between Helena and San Francisco, the leading airline is Delta, making up 61% of the total bookings. Other popular airlines include Alaska Airlines with 39%.
Best airlines flying from Helena to San Francisco
Compare and see reviews for airlines that fly from Helena to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $246 | Free Cancellation | Rating 8.0 7,898 reviews | |||
| PriceFrom $273 | Free Cancellation | Rating 8.0 9,820 reviews |
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Why should I use momondo to find a flight deal from Helena to San Francisco?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Helena.
Can I find flights from Helena to San Francisco with flexible booking policies on momondo?
All flight searches from Helena to San Francisco on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Helena to San Francisco?
momondo provides multiple filters to help you find the best flight to San Francisco from Helena. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Helena to San Francisco right now. Can momondo alert me if prices change?
Price alerts on flights to San Francisco from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.