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SAN - HLN

$181 Find cheap flights from San Diego to Helena

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Helena departing on 6/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Helena, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Helena, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from San Diego to Helena (SAN-HLN)

 
These are the cheapest deals for flights from San Diego to Helena currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from San Diego to Helena

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Diego to Helena.

Recent one-way flight deals from San Diego to Helena

Only flying one-way? Below are some of the best one-way flight deals from San Diego to Helena found on KAYAK recently.

Recent last minute flight deals from San Diego to Helena

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from San Diego to Helena.

Recent direct flight deals from San Diego to Helena

The latest deals for direct flights from San Diego to Helena so you can sit back and relax without the need for a layover.

Cheap bus & train deals from San Diego to Helena

Find recent round-trip train or bus tickets from San Diego to Helena.

All round-trip flight deals to Helena

The cheapest plane tickets to Helena found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:55 pm - 9:18 pmSAN-HLN
28h 23m1 stop
6:45 am - 10:25 pmHLN-SAN
16h 40m1 stop
$550United Airlines
Find Deal
Wed, Jul 3 - Sat, Jul 6
8:50 pm - 11:59 pmSAN-HLN
26h 09m1 stop
3:46 pm - 7:38 amHLN-SAN
16h 52m2 stops
$590Alaska Airlines
Find Deal
Wed, Jul 3 - Sat, Jul 6
6:45 am - 11:59 pmSAN-HLN
16h 14m2 stops
3:46 pm - 7:38 amHLN-SAN
16h 52m2 stops
$621Alaska Airlines
Find Deal
Wed, Jul 3 - Sat, Jul 6
6:15 am - 3:05 pmSAN-HLN
7h 50m1 stop
$181Alaska Airlines
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Tue, Jun 25
5:42 pm - 3:05 pmSAN-HLN
20h 23m2 stops
$192Alaska Airlines
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Tue, Jun 25
7:00 am - 11:59 pmSAN-HLN
15h 59m1 stop
$207Alaska Airlines
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Wed, Jul 10
6:45 am - 11:59 pmSAN-HLN
16h 14m2 stops
$212Alaska Airlines
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Wed, Jul 17
6:25 am - 12:31 pmSAN-HLN
5h 06m1 stop
$244Delta
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Thu, Jul 11
7:18 pm - 12:31 pmSAN-HLN
16h 13m2 stops
$253Delta
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Wed, Jul 10
5:14 pm - 10:32 pmSAN-HLN
4h 18m1 stop
$289Delta
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Fri, Jul 19
11:00 am - 9:18 pmSAN-HLN
9h 18m2 stops
$454United Airlines
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Fri, Jul 12
11:00 am - 9:18 pmSAN-HLN
9h 18m2 stops
$539United Airlines
Find Deal
Fri, Jul 19
4:05 pm - 9:26 pmSAN-HLN
28h 21m3 stops
$547United Airlines
Find Deal
Tue, Jun 25

Flights from San Diego to Helena - Travel Insights & Trends

Get data-powered insights and trends into flights from San Diego to Helena to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Diego to Helena?

The average price of all flights from San Diego to Helena clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Helena on a Monday and more expensive on a Friday. On your return trip to San Diego, you should consider flying back on a Saturday, and avoid Thursdays for better deals.

Which airlines provide the cheapest flights from San Diego to Helena?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Alaska Airlines offered the best one-way deal for that route, at $181. KAYAK users also found San Diego to Helena round-trip flights on United Airlines from $550 and on Alaska Airlines from $590.

Good to know

Cheapest flight

$181
Flight from San Diego to Helena

When to book flights from San Diego to Helena

Are your dates flexible? Find out the best times to travel from San Diego to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Helena

  • What is the cheapest flight from San Diego to Helena?

    In the last 3 days, the lowest price for a flight from San Diego to Helena was $181 for a one-way ticket and $550 for a round-trip.

  • Do I need a passport to fly between San Diego and Helena?

    A passport is not required to fly from San Diego to Helena.

  • Which airports will I be using when flying from San Diego to Helena?

    When flying out of San Diego you will be using San Diego. You will be landing at Helena, also known as Helena.

  • Which aircraft models fly most regularly from San Diego to Helena?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Helena?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Diego and Helena, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from San Diego to Helena, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Helena are Delta and Alaska Airlines. With an average price for the route of $536 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $519 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from San Diego to Helena?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Helena.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Helena?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Helena?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helena with an airline and back to San Diego with another airline. Booking your flights between San Diego and HLN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Helena?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helena from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from San Diego to Helena

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Helena. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Helena? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9192 reviews
8.6Crew
7.9Comfort
7.3Entertainment
8.2Boarding
7.3Food
Airline reviews

I had a middle seat in between two large men. It was a redeye so needless to say I didn’t get a minute of sleep. One guy was pouring over into my seat the other kept falling onto my shoulder

2.0 MediocreAnonymous, May 2024SAN - JFK
Read more about Alaska Airlines reviews

I had a middle seat in between two large men. It was a redeye so needless to say I didn’t get a minute of sleep. One guy was pouring over into my seat the other kept falling onto my shoulder

It was ok. Alaska was adequate. Efficient and what I paid for it was fair. The boarding area at the gate was a joke. By the time they get past the C boarding group people all line up impatiently and then it’s chaos. We were boarding early then we sat on the tarmac for 30 minutes. I would of rather sat in the airport.

Pilot warned us it was going to be bumpy, which I usually like when it is, but it wasn't, so I spent most of the flight unnecessarily wondering when it was going to get rough. Just can't win sometimes. Ha!

Flight itself was great! Snacks are never really good; in this case, the "butter braids" and Biscotti cookie were both hard. The attendants' were good. We felt we found a good deal on the cost. The check-in process was very smooth: Alaskan Airlines always does a good job. Boarding was pretty timely, too. We fly Alaskan whenever possible and will continue to do so.

The space for legs in coach is better than other Airlines you can even cross your legs!!

Comfortable seat, plenty of leg room which is so rare, overhead bin comfortably accommodated my carry-on bag. Deli box was tasty, service was good, bathrooms were clean. Uneventful flight, which I appreciate. Departed on time and landed early.

Honestly, there was not much they could do. Due to wind, the flight was delayed for several hours because we had to be diverted to San Jose where we needed to refuel before departing to Hawaii. Wish they had offered some snacks during the delays/diversion because we had to wait such a long time to finally get our food served during the flight after leaving California.

I really like Alaska airline, it's my favorite airline❤️

Alaska Airlines was fantastic. Kayak on the other hand was extremely poor. I got tickets through Kayak for a flight to a funeral. The date got changed less than 12 hours after I made my reservations. When I attempted to change my flights through Kayak, I was unable to use either the website or the phone system. The phone matrix did not give an option to cancel or change. The website said Kayak could not find any record of me making airline reservations through Kayak and even through I never left the Kayak website when making the reservations to my knowledge. After more than a half hour of frustration on the phone and computer ( on top of dealing with the death of a member of my family) I finally contacted Alaska Airline directly and they cancelled my flight and refunded the cost very quickly and efficiently. Alaska Airlines gets 10 stars. Kayak gets zero stars and has permanently lost a customer. I will never use Kayak again.

My plane ride down landed 20 min late. Boarding at SFO was strange too. The people at the terminal were nice—but, boarding lacked direction, and was confusing . Coming back was worse—the plane was hours behind—and I barely caught the last Bart train back to San Francisco (3 min more and I would have been in trouble). It was a very stressful trip, and it didn’t need to be.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

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Book cheap flights from San Diego to Helena

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Diego to Helena found on KAYAK in the last 72 hours.
6/25Tue
1 stopAlaska Airlines
7h 50mSAN-HLN
$181
6/25Tue
2 stopsAlaska Airlines
20h 23mSAN-HLN
$192
7/10Wed
1 stopAlaska Airlines
15h 59mSAN-HLN
$207
7/17Wed
2 stopsAlaska Airlines
16h 14mSAN-HLN
$212
7/11Thu
1 stopDelta
5h 06mSAN-HLN
$244
7/10Wed
2 stopsDelta
16h 13mSAN-HLN
$253
7/19Fri
1 stopDelta
4h 18mSAN-HLN
$289
7/12Fri
2 stopsUnited Airlines
9h 18mSAN-HLN
$454
7/19Fri
2 stopsUnited Airlines
9h 18mSAN-HLN
$539
6/25Tue
3 stopsUnited Airlines
28h 21mSAN-HLN
$547

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San Diego - Helena Flights

Departure:

San Diego (SAN)United States

Destination:

Helena (HLN)United States

Return flight deals:

Helena - San Diego

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