Cheap flights from San Francisco to Helena from $122
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Helena departing on 5/10. 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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Alaska Airlines flights from San Francisco to Helena
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United Airlines flights from San Francisco to Helena
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How to get the cheapest flight ticket from San Francisco to Helena
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 Helena?
The cheapest day to depart from San Francisco to Helena is on a Monday. Travelers who choose to depart for Helena on a Monday will often find tickets for as low as $350. The most expensive day to fly to Helena is Sunday, with ticket prices averaging around $706.
What is the cheapest time of day to depart on your flight to Helena?
According to our data, the cheapest time of day to fly to Helena is in the afternoon. momondo users have found flights departing from San Francisco to Helena in the afternoon for as low as $386. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is at noon when prices are around $950.
What is the cheapest airline that flies from San Francisco to Helena?
Alaska Airlines and Delta are the most popular carriers operating from San Francisco to Helena
What airlines fly to Helena?
United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Helena from San Francisco according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 7 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.
When to book flights from San Francisco to Helena
Cheap San Francisco to Helena (SFO to HLN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Helena
How far is San Francisco to Helena by plane?
A flight from San Francisco to Helena will travel around 805.5 mi. Flights usually cover this in 5h 06m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Francisco Airport to Helena Airport?
Prices for flights from San Francisco Airport to Helena Airport refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Helena Airport?
As of April 2025, there is 1 operator available to choose from for flights from San Francisco Airport to Helena Airport.
How old do you have to be to fly from San Francisco Airport to Helena Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The required travel and health documents for your Helena Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helena Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Helena?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to Helena is Delta (100% of total bookings).
Best airlines flying from San Francisco to Helena
Compare and see reviews for airlines that fly from San Francisco to Helena with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $294 | Free Cancellation | Rating 8.0 7,899 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from San Francisco to Helena?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Helena. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Francisco to Helena with flexible booking policies on momondo?
All flight searches from San Francisco to Helena on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from San Francisco to Helena?
Once you have performed a search for San Francisco to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from San Francisco to Helena right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Helena from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.