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Find cheap one-way flights from Helena to San Diego starting at US$120.
For as little as US$120, you can take your next adventure to San Diego without breaking the bank. Choose between one-way and return tickets from Helena below.
- One way
- Round-trip
- HLN16:197h 18m1 stopSAN22:37Fri, Mar 7|Helena - San Diego|Alaska AirlinesUS$120US$31061% OFF61% OFFUS$310US$120
- HLN13:306h 39m1 stopSAN19:09Fri, Feb 28|Helena - San Diego|Delta Air LinesUS$127US$31059% OFF59% OFFUS$310US$127
- HLN05:454h 16m1 stopSAN09:01Wed, May 14|Helena - San Diego|Delta Air LinesUS$127US$31059% OFF59% OFFUS$310US$127
- HLN16:196h 30m1 stopSAN21:49Mon, Mar 24|Helena - San Diego|Alaska AirlinesUS$162US$162
- HLN05:454h 25m1 stopSAN09:10Mon, Mar 24|Helena - San Diego|Delta Air LinesUS$164US$164
- HLN19:2914h 13m1 stopSAN08:42Wed, May 14|Helena - San Diego|Alaska AirlinesUS$164US$164
- HLN17:0017h 11m1 stopSAN09:11Sun, Mar 16|Helena - San Diego|Alaska AirlinesUS$196US$196
- HLN16:1927h 51m1 stopSAN19:10Fri, Feb 28|Helena - San Diego|Alaska AirlinesUS$198US$198
- HLN16:195h 55m1 stopSAN21:14Thu, Mar 13|Helena - San Diego|Alaska AirlinesUS$202US$202
- HLN14:167h 39m1 stopSAN20:55Wed, May 14|Helena - San Diego|United AirlinesUS$236US$236
- HLN01:00 pm3h 5mNonstopSAN02:00 pmSun, Mar 2|Helena - San Diego|Alaska AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Helena to San Diego Flight time & Schedules
DL3901
Delta Air Lines
05:45
HLN
07:13
SLC
SMTWTFSDL1179
Delta Air Lines
11:25
SLC
12:29
SAN
SMTWTFSDL3901
Delta Air Lines
05:45
HLN
07:13
SLC
SMTWTFSDL1177
Delta Air Lines
08:00
SLC
09:10
SAN
SMTWTFSUA5514
United Airlines
06:45
HLN
08:51
DEN
SMTWTFSUA1234
United Airlines
09:50
DEN
10:59
LAS
SMTWT-SAS3370
Alaska Airlines
17:55
LAS
19:09
SAN
--T----UA5514
United Airlines
06:45
HLN
08:51
DEN
SMTWTFSUA366
United Airlines
11:34
DEN
13:11
SAN
SMTWTFSDL3880
Delta Air Lines
13:00
HLN
14:30
SLC
SMTWTFSDL1252
Delta Air Lines
17:50
SLC
18:45
SAN
SMTWT-SUA5911
United Airlines
14:39
HLN
16:40
DEN
SMTWTFSF94989
Frontier Airlines
18:20
DEN
19:49
SAN
SMTWTFSUA5911
United Airlines
14:39
HLN
16:40
DEN
SMTWTFSUA540
United Airlines
19:50
DEN
21:14
SAN
SMTWTFSAS2222
Alaska Airlines
16:11
HLN
16:56
SEA
SMTWTFSAS1131
Alaska Airlines
19:50
SEA
22:37
SAN
SMTWTFSAS2222
Alaska Airlines
16:11
HLN
16:56
SEA
SMTWTFSAS1098
Alaska Airlines
17:59
SEA
20:45
SAN
SMTWTFSAS2322
Alaska Airlines
17:00
HLN
17:41
SEA
------SAS1131
Alaska Airlines
19:50
SEA
22:37
SAN
SMTWTFS
When is the cheapest time to book flights from Helena to San Diego?
Explore the best time to buy affordable tickets to San Diego with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.
Frequently Asked Questions
How to find a cheap flight from Helena to San Diego
Helena to San Diego Flight Information
Cheapest nonstop flight price | $120 |
---|---|
Off-season for travel | February |
Peak season for travel | December |
Flight distance | 1,604.66 km |
Popular airline | Alaska Airlines |
Plan Your Trip Around San Diego
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