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$82+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$160
(Mytrip)

One-way from

$82
(Mytrip)

Popular in

October

Cheapest in

April

Average price

$347

Good round-trip deal

$286 or less
From Montana to San Diego
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One-way flight from Montana to San Diego
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Highest demand for flights based on searches. 4% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Montana to San Diego.
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Find 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/149:54 pmMSO - SAN
1 stop26h 12mMultiple Airlines
Mon 7/216:15 amSAN - MSO
1 stop8h 15mMultiple Airlines
Deal found 6/10$160
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3110:40 amFCA - SAN
1 stop11h 05mMultiple Airlines
Tue 8/53:57 pmSAN - FCA
2 stops21h 59mMultiple Airlines
Deal found 6/9$168
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2710:17 amGTF - SAN
1 stop14h 12mMultiple Airlines
Tue 7/17:31 pmSAN - GTF
1 stop24h 58mMultiple Airlines
Deal found 6/12$192
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/283:52 pmBZN - SAN
1 stop9h 19mAmerican Airlines
Sun 8/316:15 amSAN - BZN
1 stop7h 47mAmerican Airlines
Deal found 6/12$197
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2710:24 pmBIL - SAN
1 stop26h 05mMultiple Airlines
Tue 7/17:31 pmSAN - BIL
1 stop20h 51mMultiple Airlines
Deal found 6/10$200
This Southwest deal was found by Cheapflights users on 6/10. 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.
Wed 7/304:15 pmBZN - SAN
1 stop4h 10mSouthwest
Tue 8/58:40 amSAN - BZN
1 stop7h 10mSouthwest
Deal found 6/10$217
This Delta deal was found by Cheapflights users on 6/10. 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 7/185:15 pmBZN - SAN
1 stop6h 12mDelta
Mon 7/217:10 pmSAN - BZN
1 stop3h 49mDelta
Deal found 6/10$237
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 9/255:50 amMSO - SAN
1 stop8h 08mDelta
Mon 9/295:00 pmSAN - MSO
1 stop6h 31mDelta
Deal found 6/10$241
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/83:00 pmBZN - SAN
1 stop7h 47mHawaiian Airlines
Wed 8/138:00 amSAN - BZN
Nonstop2h 50mHawaiian Airlines
Deal found 6/10$247
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 8/83:00 pmBZN - SAN
1 stop6h 54mAlaska Airlines
Wed 8/138:10 amSAN - BZN
2 stops9h 21mAlaska Airlines
Deal found 6/11$255
This Delta deal was found by Cheapflights users on 6/9. 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 8/165:25 amBIL - SAN
1 stop4h 14mDelta
Sat 8/235:02 pmSAN - BIL
1 stop5h 00mDelta
Deal found 6/9$267
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/242:36 pmBZN - SAN
1 stop7h 09mMultiple Airlines
Tue 7/296:15 amSAN - BZN
2 stops31h 29mMultiple Airlines
Deal found 6/9$269

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 June 12, 2025.
Use the filters below to find and compare flights from Montana to San Diego that are best for you.

Fly from

Montana

Fly to

San Diego

Route

Depart

Return

Price

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Mon 7/14

9:54 pm-11:06 pm

1 stop26h 12m

San Diego

Mon 7/21

6:15 am-3:30 pm

1 stop8h 15m

$160

KalispellSan Diego

FCA - SAN

FCASAN

Kalispell Glacier Park

Thu 7/31

10:40 am-8:45 pm

1 stop11h 05m

San Diego

Tue 8/5

3:57 pm-2:56 pm

2 stops21h 59m

$168

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Fri 6/27

10:17 am-11:29 pm

1 stop14h 12m

San Diego

Tue 7/1

7:31 pm-9:29 pm

1 stop24h 58m

$192

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 8/28

3:52 pm-12:11 am

1 stop9h 19m

San Diego

Sun 8/31

6:15 am-3:02 pm

1 stop7h 47m

$197

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

Fri 6/27

10:24 pm-11:29 pm

1 stop26h 05m

San Diego

Tue 7/1

7:31 pm-5:22 pm

1 stop20h 51m

$200

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 7/30

4:15 pm-7:25 pm

1 stop4h 10m

San Diego

Tue 8/5

8:40 am-4:50 pm

1 stop7h 10m

$217

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 7/18

5:15 pm-10:27 pm

1 stop6h 12m

San Diego

Mon 7/21

7:10 pm-11:59 pm

1 stop3h 49m

$237

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Thu 9/25

5:50 am-12:58 pm

1 stop8h 08m

San Diego

Mon 9/29

5:00 pm-12:31 am

1 stop6h 31m

$241

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 8/8

3:00 pm-9:47 pm

1 stop7h 47m

San Diego

Wed 8/13

8:00 am-11:50 am

Nonstop2h 50m

$247

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 8/8

3:00 pm-8:54 pm

1 stop6h 54m

San Diego

Wed 8/13

8:10 am-6:31 pm

2 stops9h 21m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 59 results
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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, August is the cheapest month in which you can book a flight from Montana to San Diego (average of $286). Flying from Montana to San Diego in March is currently the most expensive (average of $366). 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 June 12, 2025.

When flying from Montana to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Montana to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $99. Users have also found prices from $119 and $127 on Hawaiian Airlines and Alaska Airlines, 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, Kalispell Glacier Park - San Diego and Billings Logan Intl - San Diego.

  • 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, August is the cheapest month in which you can book a flight from Montana to San Diego (average of $286). Flying from Montana to San Diego in March is currently the most expensive (average of $366). 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 Montana?

Book flights to Montana if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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Alternative routes for Montana to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Montana to San Diego

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$206FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$176Average$398FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$196Average$322FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$393FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$216Average$353FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$220Average$347FlexibilityNo cancel feeOn-time71%

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