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$79+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SAN
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
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 January 11, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$113
(Southwest)

One-way from

$79
(Alaska Airlines)

Popular in

June

Cheapest in

April

Average price

$262

Good round-trip deal

$171 or less

Good one-way deal

$279 or less
Provider with most accurate pricing for Bozeman Gallatin Field-San Diego flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-San Diego flights.
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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. 8% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Montana to San Diego.
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Price to beat on a one-way 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 January 11, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:40 pmBZN - SAN
Nonstop2h 52mAlaska Airlines
Sat 4/118:01 amSAN - BZN
Nonstop2h 59mAlaska Airlines
Deal found 1/9$157
This United Airlines deal was found by Cheapflights users on 1/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/114:16 pmBZN - SAN
1 stop5h 26mUnited Airlines
Tue 2/176:30 amSAN - BZN
1 stop7h 53mUnited Airlines
Deal found 1/10$177
This Southwest deal was found by Cheapflights users on 1/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:10 pmBZN - SAN
1 stop4h 00mSouthwest
Wed 4/86:30 pmSAN - BZN
1 stop4h 45mSouthwest
Deal found 1/9$189
This Delta deal was found by Cheapflights users on 1/11. 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.
Wed 2/257:30 amBZN - SAN
1 stop7h 59mDelta
Fri 3/61:40 pmSAN - BZN
1 stop7h 45mDelta
Deal found 1/11$197
This United Airlines deal was found by Cheapflights users on 1/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/72:29 pmBZN - SAN
1 stop6h 25mUnited Airlines
Sat 2/146:30 amSAN - BZN
1 stop7h 53mUnited Airlines
Deal found 1/10$200
This Alaska Airlines deal was found by Cheapflights users on 1/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/412:46 pmBZN - SAN
Nonstop2h 44mAlaska Airlines
Sat 2/76:15 amSAN - BZN
1 stop6h 54mAlaska Airlines
Deal found 1/10$202
This Southwest deal was found by Cheapflights users on 1/11. 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.
Thu 2/193:30 pmBZN - SAN
1 stop7h 50mSouthwest
Mon 2/233:10 pmSAN - BZN
1 stop6h 30mSouthwest
Deal found 1/11$211
This Southwest deal was found by Cheapflights users on 1/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:20 pmBZN - SAN
2 stops8h 20mSouthwest
Sat 4/118:20 amSAN - BZN
1 stop4h 55mSouthwest
Deal found 1/9$216
This Delta deal was found by Cheapflights users on 1/10. 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 1/303:00 pmBZN - SAN
1 stop8h 42mDelta
Mon 2/21:45 pmSAN - BZN
1 stop7h 42mDelta
Deal found 1/10$218
This Alaska Airlines deal was found by Cheapflights users on 1/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:14 pmBZN - SAN
Nonstop2h 49mAlaska Airlines
Fri 3/69:10 amSAN - BZN
1 stop5h 12mAlaska Airlines
Deal found 1/10$222
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 1/312:02 pmBIL - SAN
1 stop21h 05mAlaska Airlines
Tue 2/34:01 pmSAN - BIL
1 stop6h 35mAlaska Airlines
Deal found 1/8$223
This Southwest deal was found by Cheapflights users on 1/10. 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.
Thu 3/195:25 amBZN - SAN
1 stop5h 55mSouthwest
Mon 3/236:45 pmSAN - BZN
1 stop4h 25mSouthwest
Deal found 1/10$224

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 January 11, 2026.
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

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 2/5

7:40 am-2:40 pm

1 stop8h 00m

San Diego

Mon 2/9

3:10 pm-10:40 pm

1 stop6h 30m

$154

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 4/18

12:40 pm-2:32 pm

Nonstop2h 52m

San Diego

Wed 4/22

10:36 am-2:23 pm

Nonstop2h 47m

$157

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 4/22

2:40 pm-9:22 pm

1 stop7h 42m

San Diego

Sat 4/25

6:20 am-12:20 pm

1 stop5h 00m

$177

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 2/11

4:16 pm-8:42 pm

1 stop5h 26m

San Diego

Tue 2/17

6:30 am-3:23 pm

1 stop7h 53m

$177

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Mon 3/30

7:10 pm-11:20 pm

1 stop5h 10m

San Diego

Wed 4/8

6:20 am-2:40 pm

2 stops7h 20m

$194

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 4/18

5:20 am-8:42 am

1 stop4h 22m

San Diego

Wed 4/22

1:41 pm-10:40 pm

1 stop7h 59m

$197

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Tue 1/27

7:40 am-1:35 pm

1 stop6h 55m

San Diego

Fri 1/30

4:20 pm-10:15 pm

1 stop4h 55m

$197

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Mon 4/6

3:04 pm-10:38 pm

1 stop8h 34m

San Diego

Sat 4/11

8:01 am-12:00 pm

Nonstop2h 59m

$202

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 2/4

12:46 pm-2:30 pm

Nonstop2h 44m

San Diego

Sat 2/7

6:15 am-2:09 pm

1 stop6h 54m

$202

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 7/3

5:45 am-8:59 am

1 stop4h 14m

San Diego

Wed 7/8

7:00 am-2:36 pm

1 stop6h 36m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/9

Showing 1-10 of 60 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, May is the cheapest month in which you can book a flight from Montana to San Diego (average of $110). 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 January 11, 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 43% on your trip compared to booking a flight at noon.

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 United Airlines fly from Montana to San Diego in about 2h 52m. The time it takes to get you to your destination can typically vary by up to 5h 08m. 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, Missoula Johnson-Bell Field - San Diego and Billings Logan Intl - 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: SkyWest Airlines (36%), American Airlines (36%), Alaska Airlines (36%).

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

    On average you can expect to pay $235 for a flight from Montana to San Diego. The cheapest flight overall is $171 while the most popular route, (Bozeman Gallatin Field - San Diego) is currently priced at $113.

  • 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, May is the cheapest month in which you can book a flight from Montana to San Diego (average of $110). 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

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 January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$138Average$505FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$150Average$293FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$164Average$388FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$171Average$364FlexibilityNo cancel feeOn-time75%
DeltaCheapest$196Average$373FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$379FlexibilityNo cancel feeOn-time71%

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