Find Cheap Flights from San Francisco to Helena (SFO - HLN)

Search hundreds of travel sites at once for deals on flights to Helena

Sun 12/10
Sun 12/17
Any month
Compare vs. KAYAK |

Good to Know

Average Price:
$408
(avg. price over the last 2 weeks)
Good Deal:
$273
or less (round trip)

When to Book Flights from San Francisco to Helena

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $272 or less.
The cheapest flight from San Francisco to Helena was found 33 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Helena Flights

How long does a flight from San Francisco to Helena take?
An average nonstop flight takes 5h 14m, covering a distance of 817 miles.
Which airlines provide the cheapest flights from San Francisco to Helena?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($222), Alaska Airlines ($222) and Delta ($222).
Do I need a passport to fly between San Francisco and Helena?
No.
What’s the cheapest day of the week to fly San Francisco to Helena?
For San Francisco to Helena, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Helena back to San Francisco, the best deals are generally found on Monday, with Wednesday being the most expensive.

Book cheap flights from San Francisco to Helena (round-trip)

Airports
Origin
San Francisco
$222
only
$222
Destination
Helena
$222
only
$222
Wed, Jan 3
SFO
HLN
6h 46m
Tue, Jan 9
HLN
SFO
7h 06m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Feb 3
SFO
HLN
7h 30m
Tue, Feb 6
HLN
SFO
5h 11m
Trip: 4 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
BUR
SEA
Excellent 10.0

No strict baggage rules, free carry-on, free WiFi and entertainment. Efificient boarding.

Nothing I didn’t like.

SJC
GDL
Good 6.0

Stolen items from luggage

PDX
SLC
Excellent 9.0

Overall it was smooth and quick and a great flight. Will be choosing Alaska again.

The crew's attitude could've been better

SEA
BNA
Good 7.0

I didn't eat or watch movies, so couldn't rate those. The crew we're pleasant and helpful, and the pilot got us there in one piece, which is the important thing. Then, I managed to leave my suitcase behind, after picking it up at baggage claim. I had just arrived at my destination and realized it was missing, and before panic set in I got a call from someone at Alaska Airlines, saying they had my bag. Excellent! I'd definitely fly Alaska again, and recommend it to others. Eileen

TUS
SEA
Excellent 8.0

Wheelchair to plane

My seat would not recline (row 32). Is this new policy?

Thu, Feb 22
SFO
HLN
5h 35m
Mon, Feb 26
HLN
SFO
6h 43m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14097 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.4
MSN
LGA
Mediocre 3.3

3.5 hours late.

LAX
HNL
Okay 5.0

The gate agents were gruff, but helpful. Stewards were super friendly.

Even though I had picked out two seats together, they had us separated. Very thankfully they put us back together after the fact - that was wonderful & appreciated. But entertainment system also didn’t work, and as always, seats are disgustingly uncomfortable. Also odd that they made us check bags with so many empty overhead bins.

ATL
MGM
Okay 5.0

Very uncomfortable and cold. Wasn’t space didn’t serve anything no WiFi or tv like other flight

IND
ATL
Excellent 8.3

Ind-atl flight was absolutely amazing i couldn’t find really anything wrong with the flight besides spacing for seats

Spacing with seats

JFK
LHR
Excellent 8.0

Space looked a bit cramped in business class but I was pleasantly surprised at the length of the flat bed and the additional foot well space once I'd reclined the seat.

Need to fix the flickering lights in the JFK club lounge, the opposite of relaxing!

Thu, Jan 4
SFO
HLN
5h 14m
Mon, Jan 8
HLN
SFO
5h 57m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 12
SFO
HLN
10h 08m
Sat, May 19
HLN
SFO
4h 17m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14097 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.4
JFK
LHR
Excellent 8.0

Space looked a bit cramped in business class but I was pleasantly surprised at the length of the flat bed and the additional foot well space once I'd reclined the seat.

Need to fix the flickering lights in the JFK club lounge, the opposite of relaxing!

MSN
LGA
Mediocre 3.3

3.5 hours late.

IND
ATL
Excellent 8.3

Ind-atl flight was absolutely amazing i couldn’t find really anything wrong with the flight besides spacing for seats

Spacing with seats

ATL
MGM
Okay 5.0

Very uncomfortable and cold. Wasn’t space didn’t serve anything no WiFi or tv like other flight

SJC
LAS
Good 7.3

Quick friendly service from crew and captain.

First class seat was broken was reclined and super uncomfortable the whole flight the plane was super outdated and old.

Fri, Jan 12
SFO
HLN
7h 30m
Tue, Jan 16
HLN
SFO
4h 59m
Trip: 5 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PDX
AUS
Good 7.6

On time and uneventful. That's all I really want or expected. Alaska came through in flying colors (pun intended).

On my return flight it seemed that the attendants were trying to stop anyone other than the 19 or 20 people in first class from using the forward bathroom. On my flight out, the cabin was asked to "wait at row 6" for the bathroom to be free. That seemed reasonable, even though I was in row 6, and fair to ask. However, on my return flight they seemed to expect the entire rest of the plane to use the rear bathroom. That doesn't seem right.

PDX
LAX
Excellent 10.0

Is wash very good

ORD
SEA
Excellent 9.6

Comfort and quality of the airline is top notch, like its sister company Virgin.

A little hard to get onto the WiFi, but once on, it was fine. Hey ... it’s free so overall, still great

BWI
SEA
Excellent 10.0

Long time ago coming home from AK and getting a little box of pizza and then an ice cream bar.. cute

LAX
LTO
Excellent 10.0

On time, excellent crew

Fri, Dec 29
SFO
HLN
5h 14m
Tue, Jan 2
HLN
SFO
25h 45m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52163 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
LGA
DEN
Excellent 10.0

Excellent service. On time. No complaints

Was great

IAH
DCA
Good 7.0

Seats are not very comfortable. Food selection is not very good..

SFO
ORD
Okay 5.3

The “entertainment” system was more like a “frustration” system. The wi-fi was painfully slow. I had to use a different browser. Then download software. Then close a separate browser. Then download more software. At each step, I would scroll through an entire list of movies (painstakingly slowly) to get to the one I wanted, only to find that I needed to do yet another slow process before I could proceed. Finally, after 30 minutes of effort, I was watching my movie! And then 10 minutes into it, it cut off and I could not re-open it. Thanks for wasting my time and killing my soul with this “entertainment.”

IAH
SJD
Good 6.6

I am only 5'4" but the seat in front of me was broken. I had NO leg room. If you are going to squeeze your passengers in like sardines, the very least that you could do is make sure what little room you have left us isn't compromised by faulty equipment.

ORD
SEA
Good 7.0

On time departure and arrival, friendly staff

Cramped planes with not enough legroom. Poor food options.

Sat, Jan 6
SFO
HLN
5h 14m
Mon, Jan 8
HLN
SFO
5h 57m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 16
SFO
HLN
7h 42m
Fri, Jan 19
HLN
SFO
7h 28m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14097 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.4
IND
ATL
Excellent 8.3

Ind-atl flight was absolutely amazing i couldn’t find really anything wrong with the flight besides spacing for seats

Spacing with seats

SLC
FAT
Good 6.6

Staff was friendly

Plane was tiny

LAX
SYD
Excellent 10.0

adjustable head rest is great - being given a pillow is great - the plane was not too cold to sleep either (as they often are)

SJC
SEA
Okay 5.3

Crew was friendly and helpful

Our flight was delayed by almost 2 hours and caused me to miss my connecting flight. Next available flight was a 6 hour layover that I was not expecting.

JFK
LHR
Excellent 8.0

Space looked a bit cramped in business class but I was pleasantly surprised at the length of the flat bed and the additional foot well space once I'd reclined the seat.

Need to fix the flickering lights in the JFK club lounge, the opposite of relaxing!

Wed, Jan 17
SFO
HLN
7h 30m
Sun, Jan 21
HLN
SFO
7h 06m
Trip: 5 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
TUS
SEA
Excellent 8.0

Wheelchair to plane

My seat would not recline (row 32). Is this new policy?

ORD
SEA
Excellent 9.6

Comfort and quality of the airline is top notch, like its sister company Virgin.

A little hard to get onto the WiFi, but once on, it was fine. Hey ... it’s free so overall, still great

PDX
AUS
Good 7.6

On time and uneventful. That's all I really want or expected. Alaska came through in flying colors (pun intended).

On my return flight it seemed that the attendants were trying to stop anyone other than the 19 or 20 people in first class from using the forward bathroom. On my flight out, the cabin was asked to "wait at row 6" for the bathroom to be free. That seemed reasonable, even though I was in row 6, and fair to ask. However, on my return flight they seemed to expect the entire rest of the plane to use the rear bathroom. That doesn't seem right.

PDX
LAX
Excellent 10.0

Is wash very good

SAN
OGG
Excellent 8.0

The onboard crew and ground staff at counters.

No international entertainment and food in the spread. With changing times this is important.

Wed, Mar 7
SFO
HLN
6h 45m
Mon, Mar 12
HLN
SFO
5h 23m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jan 18
SFO
HLN
7h 30m
Sun, Jan 21
HLN
SFO
7h 06m
Trip: 4 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
OGG
SAN
Excellent 8.0

Crew and boarding process

No international choice in entertainment and food

PDX
LAX
Excellent 10.0

Is wash very good

TUS
SEA
Excellent 8.0

Wheelchair to plane

My seat would not recline (row 32). Is this new policy?

BWI
SEA
Excellent 10.0

Long time ago coming home from AK and getting a little box of pizza and then an ice cream bar.. cute

ORD
SEA
Excellent 9.6

Comfort and quality of the airline is top notch, like its sister company Virgin.

A little hard to get onto the WiFi, but once on, it was fine. Hey ... it’s free so overall, still great

Thu, Mar 8
SFO
HLN
5h 23m
Tue, Mar 13
HLN
SFO
6h 55m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jan 18
SFO
HLN
7h 30m
Sun, Jan 21
HLN
SFO
7h 06m
Trip: 4 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PDX
SLC
Excellent 9.0

Overall it was smooth and quick and a great flight. Will be choosing Alaska again.

The crew's attitude could've been better

PDX
AUS
Good 7.6

On time and uneventful. That's all I really want or expected. Alaska came through in flying colors (pun intended).

On my return flight it seemed that the attendants were trying to stop anyone other than the 19 or 20 people in first class from using the forward bathroom. On my flight out, the cabin was asked to "wait at row 6" for the bathroom to be free. That seemed reasonable, even though I was in row 6, and fair to ask. However, on my return flight they seemed to expect the entire rest of the plane to use the rear bathroom. That doesn't seem right.

SAN
OGG
Excellent 8.0

The onboard crew and ground staff at counters.

No international entertainment and food in the spread. With changing times this is important.

BUR
SEA
Excellent 10.0

No strict baggage rules, free carry-on, free WiFi and entertainment. Efificient boarding.

Nothing I didn’t like.

SJC
GDL
Good 6.0

Stolen items from luggage

Fri, Jan 5
SFO
HLN
7h 34m
Mon, Jan 8
HLN
SFO
7h 06m
Trip: 4 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PDX
LAX
Excellent 10.0

Is wash very good

LAX
LTO
Excellent 10.0

On time, excellent crew

ORD
SEA
Excellent 9.6

Comfort and quality of the airline is top notch, like its sister company Virgin.

A little hard to get onto the WiFi, but once on, it was fine. Hey ... it’s free so overall, still great

BUR
SEA
Excellent 10.0

No strict baggage rules, free carry-on, free WiFi and entertainment. Efificient boarding.

Nothing I didn’t like.

SEA
BNA
Good 7.0

I didn't eat or watch movies, so couldn't rate those. The crew we're pleasant and helpful, and the pilot got us there in one piece, which is the important thing. Then, I managed to leave my suitcase behind, after picking it up at baggage claim. I had just arrived at my destination and realized it was missing, and before panic set in I got a call from someone at Alaska Airlines, saying they had my bag. Excellent! I'd definitely fly Alaska again, and recommend it to others. Eileen

Fri, Jan 19
SFO
HLN
7h 30m
Thu, Jan 25
HLN
SFO
5h 57m
Trip: 7 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PDX
SLC
Excellent 9.0

Overall it was smooth and quick and a great flight. Will be choosing Alaska again.

The crew's attitude could've been better

SJC
GDL
Good 6.0

Stolen items from luggage

ORD
SEA
Excellent 9.6

Comfort and quality of the airline is top notch, like its sister company Virgin.

A little hard to get onto the WiFi, but once on, it was fine. Hey ... it’s free so overall, still great

PDX
LAX
Excellent 10.0

Is wash very good

PDX
AUS
Good 7.6

On time and uneventful. That's all I really want or expected. Alaska came through in flying colors (pun intended).

On my return flight it seemed that the attendants were trying to stop anyone other than the 19 or 20 people in first class from using the forward bathroom. On my flight out, the cabin was asked to "wait at row 6" for the bathroom to be free. That seemed reasonable, even though I was in row 6, and fair to ask. However, on my return flight they seemed to expect the entire rest of the plane to use the rear bathroom. That doesn't seem right.

Sat, Jan 20
SFO
HLN
7h 30m
Thu, Jan 25
HLN
SFO
4h 59m
Trip: 6 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PDX
LAX
Excellent 10.0

Is wash very good

SJC
GDL
Good 6.0

Stolen items from luggage

OGG
SAN
Excellent 8.0

Crew and boarding process

No international choice in entertainment and food

SAN
OGG
Excellent 8.0

The onboard crew and ground staff at counters.

No international entertainment and food in the spread. With changing times this is important.

PDX
SLC
Excellent 9.0

Overall it was smooth and quick and a great flight. Will be choosing Alaska again.

The crew's attitude could've been better

Tue, Jan 2
SFO
HLN
6h 46m
Sun, Jan 7
HLN
SFO
8h 21m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 29
SFO
HLN
5h 14m
Tue, Jan 2
HLN
SFO
25h 45m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52163 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
DCA
Good 7.0

Seats are not very comfortable. Food selection is not very good..

AUS
SFO
Good 7.0

Nickle and diming....baggage fee, meal.

ORD
CHA
Excellent 10.0

Fast & efficient

Not much

IAH
YYZ
Excellent 10.0

Everything was great and i hate flying

ORD
SEA
Good 7.0

On time departure and arrival, friendly staff

Cramped planes with not enough legroom. Poor food options.

Fri, Jan 19
SFO
HLN
7h 30m
Sun, Jan 21
HLN
SFO
7h 06m
Trip: 3 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15676 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
BWI
SEA
Excellent 10.0

Long time ago coming home from AK and getting a little box of pizza and then an ice cream bar.. cute

BUR
SEA
Excellent 10.0

No strict baggage rules, free carry-on, free WiFi and entertainment. Efificient boarding.

Nothing I didn’t like.

OGG
SAN
Excellent 8.0

Crew and boarding process

No international choice in entertainment and food

PDX
AUS
Good 7.6

On time and uneventful. That's all I really want or expected. Alaska came through in flying colors (pun intended).

On my return flight it seemed that the attendants were trying to stop anyone other than the 19 or 20 people in first class from using the forward bathroom. On my flight out, the cabin was asked to "wait at row 6" for the bathroom to be free. That seemed reasonable, even though I was in row 6, and fair to ask. However, on my return flight they seemed to expect the entire rest of the plane to use the rear bathroom. That doesn't seem right.

LAX
LTO
Excellent 10.0

On time, excellent crew

Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.