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San Diego

$89+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SAN
Jun 1 — Jun 81
Mon 6/1
Mon 6/8
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 May 2, 2026.

This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 9/119:20 am
BZN
-
SAN
Nonstop2h 45m
Alaska Airlines
Sun 9/135:00 pm
SAN
-
BZN
Nonstop2h 45m
Alaska Airlines
Deal found 4/29$191
This Delta deal was found by Cheapflights users on 4/28. 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 6/115:15 am
BZN
-
SAN
1 stop4h 27m
Delta
Wed 6/177:13 pm
SAN
-
BZN
1 stop4h 10m
Delta
Deal found 4/28$201
This Delta deal was found by Cheapflights users on 4/27. 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 5/288:00 am
BZN
-
SAN
1 stop7h 48m
Delta
Thu 6/41:37 pm
SAN
-
BZN
1 stop8h 42m
Delta
Deal found 4/27$206
This Delta deal was found by Cheapflights users on 4/27. 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.
Sun 11/18:30 am
BZN
-
SAN
1 stop7h 06m
Delta
Fri 11/63:10 pm
SAN
-
BZN
1 stop7h 48m
Delta
Deal found 4/27$211
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Sun 5/179:26 pm
GTF
-
SAN
1 stop16h 17m
Multiple Airlines
Wed 5/204:17 pm
SAN
-
GTF
1 stop27h 00m
Multiple Airlines
Deal found 4/27$215
This Delta deal was found by Cheapflights users on 4/30. 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.
Tue 6/28:00 am
BZN
-
SAN
1 stop7h 46m
Delta
Thu 6/47:15 am
SAN
-
BZN
1 stop7h 00m
Delta
Deal found 4/30$216
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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.
Thu 8/209:20 am
BZN
-
SAN
Nonstop2h 45m
Alaska Airlines
Sun 8/235:00 pm
SAN
-
BZN
Nonstop2h 45m
Alaska Airlines
Deal found 4/27$220
This Delta deal was found by Cheapflights users on 4/29. 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 6/133:56 pm
BZN
-
SAN
1 stop7h 42m
Delta
Tue 6/237:13 pm
SAN
-
BZN
1 stop4h 10m
Delta
Deal found 4/29$221
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Wed 6/108:20 pm
BZN
-
SAN
1 stop20h 12m
Multiple Airlines
Wed 6/174:47 pm
SAN
-
BZN
2 stops22h 10m
Multiple Airlines
Deal found 5/1$222
This Delta deal was found by Cheapflights users on 4/27. 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.
Tue 5/126:35 pm
BZN
-
SAN
1 stop6h 08m
Delta
Sat 5/163:45 pm
SAN
-
BZN
1 stop6h 36m
Delta
Deal found 4/27$223
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/1510:18 am
GTF
-
SAN
1 stop23h 30m
Multiple Airlines
Sat 6/204:17 pm
SAN
-
GTF
1 stop26h 58m
Multiple Airlines
Deal found 5/1$225
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Sat 6/63:33 pm
BIL
-
SAN
1 stop22h 10m
Multiple Airlines
Wed 6/104:47 pm
SAN
-
BIL
1 stop22h 58m
Multiple Airlines
Deal found 5/1$225

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 May 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$191
(Alaska Airlines)

One-way from

$89
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$292

Good round-trip deal

$249 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.
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From Montana to San Diego
Search Deals
One-way flight from Montana to San Diego
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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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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 May 2, 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
Quickest round-trip

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 9/11

9:20 am-11:05 am

Nonstop2h 45m

San Diego

Sun 9/13

5:00 pm-8:45 pm

Nonstop2h 45m

$191

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 7/31

12:13 pm-3:56 pm

1 stop4h 43m

San Diego

Sun 8/2

6:15 am-11:17 am

1 stop4h 02m

$201

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 7/8

3:54 pm-10:39 pm

1 stop7h 45m

San Diego

Mon 7/13

1:36 pm-10:49 pm

1 stop8h 13m

$221

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 8/13

7:00 pm-11:42 pm

1 stop5h 42m

San Diego

Mon 8/17

1:30 pm-11:53 pm

1 stop9h 23m

$221

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 9/11

3:40 pm-10:48 pm

1 stop8h 08m

San Diego

Sun 9/13

1:35 pm-10:24 pm

1 stop7h 49m

$230

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Tue 9/1

9:20 am-11:05 am

Nonstop2h 45m

San Diego

Wed 9/2

5:00 pm-8:45 pm

Nonstop2h 45m

$239

Great FallsSan Diego

GTF - SAN

GTFSAN

Great Falls

Sun 5/17

9:26 pm-12:43 pm

1 stop16h 17m

San Diego

Wed 5/20

4:17 pm-8:17 pm

1 stop27h 00m

$240

KalispellSan Diego

FCA - SAN

FCASAN

Kalispell Glacier Park

Fri 5/29

10:36 am-9:12 pm

1 stop11h 36m

San Diego

Sun 6/7

9:43 am-9:41 am

1 stop22h 58m

$267

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sun 5/24

6:00 am-1:17 pm

1 stop8h 17m

San Diego

Fri 5/29

7:15 am-3:17 pm

1 stop7h 02m

$275

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 8/13

1:50 pm-3:34 pm

Nonstop2h 44m

San Diego

Mon 8/17

11:38 am-3:24 pm

Nonstop2h 46m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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

How far ahead should I book a flight from Montana to San Diego?

To ensure you get the cheapest price possible for a flight from Montana to San Diego, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Montana to San Diego (average of $78). Flying from Montana to San Diego in January is currently the most expensive (average of $168). 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 May 2, 2026.

A simple way to save on the total cost of your ticket is to fly from Montana to San Diego in the afternoon. If you’re flexible enough to do this you can expect to save up to 66% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Montana to San Diego?

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 popular is this Montana to San Diego flight route?

    Within the past month, 1 users have taken a look at flights from Montana to San Diego.

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

    Airlines like Alaska Airlines, Delta, and American Airlines fly from Montana to San Diego in about 2h 45m. The time it takes to get you to your destination can typically vary by up to 5h 09m. 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 (83%), American Airlines (81%).

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

    On average you can expect to pay $271 for a flight from Montana to San Diego. The cheapest flight overall is $109 while the most popular route, (Bozeman Gallatin Field - San Diego) is currently priced at $201.

  • 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, February is the cheapest month in which you can book a flight from Montana to San Diego (average of $78). Flying from Montana to San Diego in January is currently the most expensive (average of $168). 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 May 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$367FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$138Average$344FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$148Average$357FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$150Average$299FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$159Average$358FlexibilityNo cancel feeOn-time69%

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