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Cheap flights from San Francisco to Helena from $164

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 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Francisco to Helena

Cheap round-trip flights

Hawaiian Airlines Logo
8:00 am - 3:21 pmSFO-HLN
6h 21m1 stop
Hawaiian Airlines Logo
4:02 pm - 10:23 pmHLN-SFO
7h 21m1 stop
$243Hawaiian Airlines
Find Deal
lun., sep. 15 - lun., sep. 22
Alaska Airlines Logo
8:00 am - 3:21 pmSFO-HLN
6h 21m1 stop
Alaska Airlines Logo
4:02 pm - 7:52 amHLN-SFO
16h 50m2 stops
$308Alaska Airlines
Find Deal
lun., sep. 15 - lun., sep. 22
Alaska Airlines Logo
8:20 am - 5:41 pmSFO-HLN
8h 21m1 stop
Alaska Airlines Logo
6:18 pm - 9:16 amHLN-SFO
15h 58m1 stop
$339Alaska Airlines
Find Deal
mié., oct. 8 - dom., oct. 12
Delta Logo
5:35 am - 12:20 pmSFO-HLN
5h 45m1 stop
Delta Logo
1:00 pm - 4:00 pmHLN-SFO
4h 00m1 stop
$346Delta
Find Deal
sáb., sep. 6 - vie., sep. 12
Alaska Airlines Logo
7:40 pm - 3:43 pmSFO-HLN
19h 03m1 stop
Alaska Airlines Logo
4:10 pm - 10:15 amHLN-SFO
19h 05m1 stop
$355Alaska Airlines
Find Deal
vie., dic. 5 - lun., dic. 8
Alaska Airlines Logo
6:00 am - 3:43 pmSFO-HLN
8h 43m1 stop
Alaska Airlines Logo
4:10 pm - 9:49 amHLN-SFO
18h 39m2 stops
$361Alaska Airlines
Find Deal
vie., dic. 5 - lun., dic. 8
United Airlines Logo
7:00 am - 10:14 pmSFO-HLN
14h 14m2 stops
United Airlines Logo
5:20 pm - 9:19 amHLN-SFO
16h 59m2 stops
$475United Airlines
Find Deal
sáb., sep. 6 - vie., sep. 12
Delta Logo
5:00 pm - 10:42 pmSFO-HLN
4h 42m1 stop
Delta Logo
12:50 pm - 6:18 pmHLN-SFO
6h 28m1 stop
$509Delta
Find Deal
mié., dic. 24 - lun., dic. 29
United Airlines Logo
7:05 am - 8:59 pmSFO-HLN
12h 54m2 stops
United Airlines Logo
6:10 am - 11:47 amHLN-SFO
6h 37m1 stop
$532United Airlines
Find Deal
mié., dic. 24 - lun., dic. 29
United Airlines Logo
7:05 am - 8:59 pmSFO-HLN
12h 54m2 stops
United Airlines Logo
2:30 pm - 7:20 amHLN-SFO
17h 50m2 stops
$552United Airlines
Find Deal
mié., dic. 24 - lun., dic. 29

Alaska Airlines flights from San Francisco to Helena

Our best Alaska Airlines deals on San Francisco to Helena flight tickets
Alaska Airlines
Sep 15
SFO8:00 amSan Francisco
6h 21m
1 stop
HLN3:21 pmHelena
Sep 22
HLN4:02 pmHelena
16h 50m
2 stops
SFO7:52 amSan Francisco
$308
Find similar
Alaska Airlines
Oct 8
SFO8:20 amSan Francisco
8h 21m
1 stop
HLN5:41 pmHelena
Oct 12
HLN6:18 pmHelena
15h 58m
1 stop
SFO9:16 amSan Francisco
$339
Find similar
Alaska Airlines
Dec 5
SFO7:40 pmSan Francisco
19h 03m
1 stop
HLN3:43 pmHelena
Dec 8
HLN4:10 pmHelena
19h 05m
1 stop
SFO10:15 amSan Francisco
$355
Find similar

United Airlines flights from San Francisco to Helena

Our best United Airlines deals on San Francisco to Helena flight tickets
United Airlines
Sep 6
SFO7:00 amSan Francisco
14h 14m
2 stops
HLN10:14 pmHelena
Sep 12
HLN5:20 pmHelena
16h 59m
2 stops
SFO9:19 amSan Francisco
$475
Find similar
United Airlines
Dec 24
SFO7:05 amSan Francisco
12h 54m
2 stops
HLN8:59 pmHelena
Dec 29
HLN6:10 amHelena
6h 37m
1 stop
SFO11:47 amSan Francisco
$532
Find similar
United Airlines
Dec 24
SFO7:05 amSan Francisco
12h 54m
2 stops
HLN8:59 pmHelena
Dec 29
HLN2:30 pmHelena
17h 50m
2 stops
SFO7:20 amSan Francisco
$552
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated agosto 1, 2025.
Use the filters below to find and compare flights from San Francisco to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

lun. 9/15

8:00 am-3:21 pm

1 stop6h 21m

Helena

lun. 9/22

4:02 pm-10:23 pm

1 stop7h 21m

$243

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

lun. 9/15

8:00 am-3:21 pm

1 stop6h 21m

Helena

lun. 9/22

4:02 pm-7:52 am

2 stops16h 50m

$308

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mié. 10/8

8:20 am-5:41 pm

1 stop8h 21m

Helena

dom. 10/12

6:18 pm-9:16 am

1 stop15h 58m

$339

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

sáb. 9/6

5:35 am-12:20 pm

1 stop5h 45m

Helena

vie. 9/12

1:00 pm-4:00 pm

1 stop4h 00m

$346

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

vie. 12/5

7:40 pm-3:43 pm

1 stop19h 03m

Helena

lun. 12/8

4:10 pm-10:15 am

1 stop19h 05m

$355

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

vie. 12/5

6:00 am-3:43 pm

1 stop8h 43m

Helena

lun. 12/8

4:10 pm-9:49 am

2 stops18h 39m

$361

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

sáb. 9/6

7:00 am-10:14 pm

2 stops14h 14m

Helena

vie. 9/12

5:20 pm-9:19 am

2 stops16h 59m

$475

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mié. 12/24

5:00 pm-10:42 pm

1 stop4h 42m

Helena

lun. 12/29

12:50 pm-6:18 pm

1 stop6h 28m

$509

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mié. 12/24

7:05 am-8:59 pm

2 stops12h 54m

Helena

lun. 12/29

6:10 am-11:47 am

1 stop6h 37m

$532

San FranciscoHelena

SFO - HLN

SFOHLN

San Francisco

mié. 12/24

7:05 am-8:59 pm

2 stops12h 54m

Helena

lun. 12/29

2:30 pm-7:20 am

2 stops17h 50m

$552

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Helena from

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.

When to book flights from San Francisco to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Helena according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$164

Fastest flight time

4h 10m

Direct flights

None

Airports in Helena

1 airport
The best one-way flight to Helena from San Francisco in the past 72 hours is $164. The best round-trip flight deal from San Francisco to Helena found on momondo in the last 72 hours is $243.
The fastest flight from San Francisco to Helena takes 4h 10m
There are no direct flights from San Francisco to Helena. Popular non-direct route for this connection is San Francisco Airport - Helena Airport.
There is 1 airport near Helena: Helena (HLN)
Search flight deals

  • 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 4h 10m, 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?

  • 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?

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
DeltaPriceFrom $274Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Alaska AirlinesPriceFrom $317Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

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.

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