SAN - HLN
$388 Find Cheap Flights from San Diego to Helena - Compare and Save
This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Helena departing on 11/14. 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.
Everything you should know
Cheapest round-trip
$388
Typical prices: $490-$631
Alaska Airlines
Wed 11/14Sat 11/17
SAN - HLN • 1 stop
Cheap Flights from San Diego to Helena (SAN-HLN)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Helena that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Cheap flights from San Diego to Helena with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.
Sat, Nov 14 - Tue, Nov 17
6:15 am - 4:04 pmSAN San Diego-HLN Helena
8h 49m1 stop Seattle/Tacoma Intl
4:41 pm - 6:47 pmHLN Helena-SAN San Diego
27h 06m1 stop Seattle/Tacoma Intl
$388Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
6:15 am - 4:04 pmSAN San Diego-HLN Helena
8h 49m1 stop Seattle/Tacoma Intl
4:41 pm - 2:47 pmHLN Helena-SAN San Diego
23h 06m1 stop Seattle/Tacoma Intl
$428Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
6:15 am - 4:04 pmSAN San Diego-HLN Helena
8h 49m1 stop Seattle/Tacoma Intl
4:41 pm - 1:36 pmHLN Helena-SAN San Diego
21h 55m2 stops Seattle/Tacoma Intl San Francisco
$433Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
5:59 pm - 4:04 pmSAN San Diego-HLN Helena
21h 05m2 stops San Jose Seattle/Tacoma Intl
4:41 pm - 10:50 pmHLN Helena-SAN San Diego
7h 09m1 stop Seattle/Tacoma Intl
$468Alaska Airlines
Mon, Dec 21 - Thu, Dec 24
6:45 am - 1:46 pmSAN San Diego-HLN Helena
6h 01m1 stop Denver Intl
2:27 pm - 8:37 pmHLN Helena-SAN San Diego
7h 10m1 stop Denver Intl
$558United Airlines
Thu, Dec 31 - Mon, Jan 4
6:45 am - 1:46 pmSAN San Diego-HLN Helena
6h 01m1 stop Denver Intl
2:27 pm - 8:37 pmHLN Helena-SAN San Diego
7h 10m1 stop Denver Intl
$570United Airlines
Fri, Jan 1 - Mon, Jan 4
6:45 am - 1:46 pmSAN San Diego-HLN Helena
6h 01m1 stop Denver Intl
2:27 pm - 8:37 pmHLN Helena-SAN San Diego
7h 10m1 stop Denver Intl
$570United Airlines
Thu, Dec 24 - Sun, Dec 27
12:48 pm - 9:37 pmSAN San Diego-HLN Helena
7h 49m1 stop Denver Intl
2:27 pm - 8:37 pmHLN Helena-SAN San Diego
7h 10m1 stop Denver Intl
$814United Airlines
Thu, Dec 24 - Sun, Dec 27
6:45 am - 1:46 pmSAN San Diego-HLN Helena
6h 01m1 stop Denver Intl
2:27 pm - 11:51 pmHLN Helena-SAN San Diego
10h 24m2 stops Denver Intl Los Angeles
$819United Airlines
Thu, Dec 24 - Sun, Dec 27
11:25 am - 9:37 pmSAN San Diego-HLN Helena
9h 12m2 stops San Francisco Denver Intl
2:27 pm - 11:51 pmHLN Helena-SAN San Diego
10h 24m2 stops Denver Intl Los Angeles
$1,050United Airlines
SAN San Diego Airport-HLN Helena
997 mimulti-stop
Multiple Airlines
Price, demand and travel trends for San Diego to Helena flights
Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.
Prices
Airlines
Layovers
How much is a round-trip flight from San Diego to Helena?
This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to Helena departing in november.
Round-trip flights from San Diego to Helena typically range from $490 to $631. The lowest price found in the past 5 days was $388, on Alaska Airlines.
What’s the most popular layover airport when flying from San Diego to Helena?
KAYAK data for 1-stop round-trips over the past 3 months. Only counts itineraries with the same layover on both legs.Salt Lake City (SLC) is the most popular layover for the San Diego to Helena route. 70% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via SLC.
What is the cheapest layover airport when flying from San Diego to Helena?
Flights via Seattle/Tacoma Intl (SEA) offer the most affordable fares, with an average round-trip price of $521. Based on KAYAK data over the past 3 months.
Key details for San Diego to Helena flights
Low season | March |
|---|---|
High season | October |
Cheapest flight | $388 |
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.
Your San Diego to Helena flight questions, answered
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Your guide to booking San Diego to Helena flights
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Cabin class types available on flights from San Diego to Helena
Cabin classes available on flights from San Diego to Helena. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
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Flights from domestic origins to Helena
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Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.