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San Diego

$84+ Cheap flights from Montana to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SAN
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from Montana to San Diego

Cheapest flights from Montana to San Diego
Explore the most affordable flight options available from Montana to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:33 pm
FCA
-
SAN
1 stop26h 28m
Multiple Airlines
Wed 4/152:12 pm
SAN
-
FCA
1 stop20h 31m
Multiple Airlines
Deal found 3/12$203
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:33 pm
FCA
-
SAN
1 stop26h 28m
Multiple Airlines
Thu 4/167:23 pm
SAN
-
FCA
1 stop16h 20m
Multiple Airlines
Deal found 3/12$224
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:15 pm
BZN
-
SAN
1 stop8h 14m
Delta
Mon 5/411:58 am
SAN
-
BZN
1 stop7h 13m
Delta
Deal found 3/12$231
This Alaska Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:22 pm
HLN
-
SAN
1 stop20h 05m
Alaska Airlines
Wed 5/67:15 am
SAN
-
HLN
1 stop9h 30m
Alaska Airlines
Deal found 3/11$234
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:20 am
BZN
-
SAN
1 stop6h 36m
Alaska Airlines
Wed 4/158:01 am
SAN
-
BZN
Nonstop2h 59m
Alaska Airlines
Deal found 3/12$237
This Alaska Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:42 pm
BZN
-
SAN
Nonstop2h 44m
Alaska Airlines
Sun 9/133:25 pm
SAN
-
BZN
Nonstop2h 43m
Alaska Airlines
Deal found 3/11$240
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:25 am
BZN
-
SAN
2 stops7h 05m
Southwest
Mon 4/66:45 pm
SAN
-
BZN
1 stop4h 25m
Southwest
Deal found 3/13$242
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:54 pm
MSO
-
SAN
1 stop17h 23m
Multiple Airlines
Wed 4/2912:29 pm
SAN
-
MSO
1 stop21h 29m
Multiple Airlines
Deal found 3/12$243
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/612:53 pm
FCA
-
SAN
1 stop26h 11m
Multiple Airlines
Wed 4/152:12 pm
SAN
-
FCA
1 stop20h 31m
Multiple Airlines
Deal found 3/12$249
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:18 pm
BIL
-
SAN
1 stop4h 23m
Delta
Tue 4/285:00 pm
SAN
-
BIL
1 stop4h 54m
Delta
Deal found 3/11$251
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/302:55 pm
BZN
-
SAN
1 stop6h 15m
Southwest
Sat 6/62:15 pm
SAN
-
BZN
2 stops6h 40m
Southwest
Deal found 3/11$256
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:49 pm
BZN
-
SAN
1 stop7h 47m
Alaska Airlines
Mon 5/48:35 pm
SAN
-
BZN
1 stop13h 08m
Alaska Airlines
Deal found 3/13$257

Find flight deals from Montana to San Diego

Keep the following information in mind while searching for Montana to San Diego flight deals. Data was last updated March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$172
(Southwest)

One-way from

$89
(Southwest)

Popular in

June

Cheapest in

February

Average price

$282

Good round-trip deal

$294 or less

Good one-way deal

$139 or less
Provider with most accurate pricing for Bozeman Gallatin Field-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-San Diego flights.
Search Deals
From Montana to San Diego
Search Deals
One-way flight from Montana to San Diego
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Montana to San Diego.
Search Deals
Price to beat on a one-way flight from Montana to San Diego.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to San Diego 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, Cheapflights users made 2,558,603 searches. Data last updated March 16, 2026.
Use the filters below to find and compare flights from Montana to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 4/25

2:55 pm-9:25 pm

1 stop7h 30m

San Diego

Sat 5/2

11:30 am-9:40 pm

2 stops9h 10m

$172

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 5/2

11:10 am-6:45 pm

2 stops8h 35m

San Diego

Mon 5/4

2:25 pm-11:00 pm

2 stops7h 35m

$212

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 4/25

3:36 pm-5:19 pm

Nonstop2h 43m

San Diego

Sat 5/2

10:51 am-7:19 pm

1 stop7h 28m

$237

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Tue 4/14

11:20 am-4:56 pm

1 stop6h 36m

San Diego

Wed 4/15

8:01 am-12:00 pm

Nonstop2h 59m

$237

HelenaSan Diego

HLN - SAN

HLNSAN

Helena

Sat 5/2

6:22 pm-1:27 pm

1 stop20h 05m

San Diego

Wed 5/6

10:51 am-5:45 pm

1 stop5h 54m

$245

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

Sat 4/25

6:18 pm-9:41 pm

1 stop4h 23m

San Diego

Tue 4/28

11:40 am-10:54 pm

2 stops10h 14m

$256

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Wed 5/6

3:55 pm-10:36 pm

1 stop7h 41m

San Diego

Mon 5/11

8:35 pm-2:59 pm

1 stop17h 24m

$265

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

Sat 4/18

7:56 am-7:47 pm

1 stop12h 51m

San Diego

Tue 4/21

6:15 am-11:58 pm

1 stop16h 43m

$288

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 4/17

5:06 pm-11:59 pm

1 stop7h 53m

San Diego

Tue 4/21

6:15 am-4:26 pm

1 stop9h 11m

$292

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Sat 5/2

1:59 pm-7:39 pm

1 stop6h 40m

San Diego

Tue 5/5

7:15 am-2:59 pm

1 stop6h 44m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Montana to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Montana with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montana to San Diego

What is the cheapest month to book a flight from Montana to San Diego?

Currently, April is the cheapest month in which you can book a flight from Montana to San Diego (average of $108). Flying from Montana to San Diego in January is currently the most expensive (average of $176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MT to SAN?

Find hourly flight availability from Montana to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.

A simple way to save on the total cost of your ticket is to fly from Montana to San Diego in the evening. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Montana to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Montana?

    Located just 2.6 mi from the city center, San Diego (SAN) is the airport most travelers will use when flying to San Diego from Montana.

  • How long is the flight from Montana to San Diego?

    Airlines like Southwest, Alaska Airlines, and Delta fly from Montana to San Diego in about 2h 43m. The time it takes to get you to your destination can typically vary by up to 4h 47m. Airlines will cover a distance of 956 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Montana to San Diego one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $62. Users have also found prices from $88 and $108 on United Airlines and Delta, respectively.

  • What are the most popular routes from Montana to San Diego?

    The most popular flight routes from Montana to San Diego are Bozeman Gallatin Field - San Diego, Billings Logan Intl - San Diego and Missoula Johnson-Bell Field - San Diego.

  • What are the most reliable airlines from Montana to San Diego?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Montana to San Diego on time: Southwest (100%), Horizon Air (89%), American Airlines (73%).

  • What are the cheapest flights from Montana to San Diego?

    On average you can expect to pay $236 for a flight from Montana to San Diego. The cheapest flight overall is $95 while the most popular route, (Bozeman Gallatin Field - San Diego) is currently priced at $237.

  • Can I find deals for flights from Montana to San Diego that include hotel bookings?

    Yes. In addition to deals on Montana to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to San Diego.

  • Can I find deals for business class flights from Montana to San Diego?

    Yes. Cheapflights offers flight deals from Montana to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montana to San Diego?

    Currently, April is the cheapest month in which you can book a flight from Montana to San Diego (average of $108). Flying from Montana to San Diego in January is currently the most expensive (average of $176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Alternative routes for Montana to San Diego

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Top 5 airlines flying from Montana to San Diego

Discover the top 5 airlines that operate flights from Montana to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$363FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$138Average$375FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$148Average$349FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$150Average$297FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$163Average$354FlexibilityNo cancel feeOn-time69%

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