What is the cheapest airline that flies from Montana to San Diego?

Southwest, United Airlines, and Delta are the most popular carriers operating from Montana to San Diego

What airlines fly to San Diego?

Delta, Alaska Airlines and United Airlines are the top three most popular airlines that fly to San Diego from Montana according to our data. Delta is the first choice among our users, with 53% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 7 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to San Diego?

On average, it takes 2h 53m to fly from Montana to San Diego if you fly out of Bozeman (the most popular airport in Montana) and into San Diego (the most popular airport in San Diego). If you’re flying out of Kalispell and into San Diego, then the flight time is around 4h 20m.

When did momondo last update prices for flights from Montana to San Diego Airport?

Prices for flights from Montana to San Diego Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Montana to San Diego Airport?

The number of operators available for flights from Montana to San Diego Airport is 6 as of September 2025.

How old do you have to be to fly from Montana to San Diego Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$85 Cheap Flights from Montana to San Diego in 2025/26

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Find the cheapest flights from Montana to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:50 pm - 11:20 pmBZN-SAN

6h 30m1 stop

3:35 pm - 9:00 pmSAN-BZN

4h 25m1 stop

$197Southwest

Find Deal

Tue, Oct 14 - Tue, Oct 28

5:50 pm - 11:20 pmBZN-SAN

6h 30m1 stop

12:30 pm - 9:00 pmSAN-BZN

7h 30m2 stops

$202Southwest

Find Deal

Tue, Oct 14 - Tue, Oct 28

4:13 pm - 7:52 pmBZN-SAN

4h 39m1 stop

6:15 am - 2:33 pmSAN-BZN

7h 18m1 stop

$205United Airlines

Find Deal

Thu, Oct 9 - Tue, Oct 14

10:07 am - 11:34 pmBZN-SAN

14h 27m1 stop

1:35 pm - 9:17 amSAN-BZN

18h 42m1 stop

$211Multiple Airlines

Find Deal

Thu, Oct 2 - Sat, Oct 4

2:43 pm - 8:54 pmBZN-SAN

7h 11m1 stop

6:45 am - 3:30 pmSAN-BZN

7h 45m1 stop

$213United Airlines

Find Deal

Mon, Nov 3 - Sat, Nov 8

1:58 pm - 9:12 pmBZN-SAN

8h 14m1 stop

6:16 am - 4:01 pmSAN-BZN

8h 45m1 stop

$214American Airlines

Find Deal

Tue, Oct 21 - Fri, Oct 24

2:01 pm - 8:34 pmBZN-SAN

7h 33m1 stop

6:15 am - 12:14 pmSAN-BZN

4h 59m1 stop

$217Delta

Find Deal

Sun, Nov 2 - Sat, Nov 8

10:26 pm - 7:29 amMSO-SAN

10h 03m1 stop

8:11 am - 8:11 pmSAN-MSO

11h 00m1 stop

$222Multiple Airlines

Find Deal

Fri, Oct 3 - Sun, Oct 12

2:01 pm - 8:34 pmBZN-SAN

7h 33m1 stop

6:30 am - 5:39 pmSAN-BZN

10h 09m2 stops

$245Delta

Find Deal

Sun, Nov 2 - Sat, Nov 8

3:55 pm - 9:59 pmBZN-SAN

7h 04m1 stop

10:27 am - 10:04 pmSAN-BZN

10h 37m2 stops

$271American Airlines

Find Deal

Sat, Jan 17 - Fri, Jan 23

Delta flights from Montana to San Diego

Our best Delta deals on Montana to San Diego flight tickets

Delta

Nov 2

BZN2:01 pmBozeman Gallatin Field

7h 33m

1 stop

SAN8:34 pmSan Diego

Nov 8

SAN6:15 amSan Diego

4h 59m

1 stop

BZN12:14 pmBozeman Gallatin Field

$217

Find similar

Delta

Nov 2

BZN2:01 pmBozeman Gallatin Field

7h 33m

1 stop

SAN8:34 pmSan Diego

Nov 8

SAN6:30 amSan Diego

10h 09m

2 stops

BZN5:39 pmBozeman Gallatin Field

$245

Find similar

Delta

Oct 3

BZN5:28 pmBozeman Gallatin Field

6h 01m

1 stop

SAN10:29 pmSan Diego

Oct 6

SAN5:25 pmSan Diego

5h 39m

1 stop

BZN12:04 amBozeman Gallatin Field

$247

Find similar

Alaska Airlines flights from Montana to San Diego

Our best Alaska Airlines deals on Montana to San Diego flight tickets

Alaska Airlines

Oct 14

BZN8:00 amBozeman Gallatin Field

13h 20m

2 stops

SAN8:20 pmSan Diego

Oct 28

SAN7:57 amSan Diego

15h 18m

2 stops

BZN12:15 amBozeman Gallatin Field

$283

Find similar

Alaska Airlines

Feb 2

BIL3:35 pmBillings Logan Intl

5h 31m

1 stop

SAN8:06 pmSan Diego

Feb 5

SAN9:40 amSan Diego

12h 03m

1 stop

BIL10:43 pmBillings Logan Intl

$292

Find similar

Alaska Airlines

Oct 21

BZN1:42 pmBozeman Gallatin Field

7h 32m

2 stops

SAN8:14 pmSan Diego

Oct 24

SAN8:33 pmSan Diego

15h 29m

1 stop

BZN1:02 pmBozeman Gallatin Field

$295

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Tue 10/14

5:50 pm-11:20 pm

1 stop6h 30m

San Diego

Tue 10/28

3:35 pm-9:00 pm

1 stop4h 25m

$197

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Tue 10/14

5:50 pm-11:20 pm

1 stop6h 30m

San Diego

Tue 10/28

12:30 pm-9:00 pm

2 stops7h 30m

$202

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 10/9

4:13 pm-7:52 pm

1 stop4h 39m

San Diego

Tue 10/14

6:15 am-2:33 pm

1 stop7h 18m

$205

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 10/2

10:07 am-11:34 pm

1 stop14h 27m

San Diego

Sat 10/4

1:35 pm-9:17 am

1 stop18h 42m

$211

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Mon 11/3

2:43 pm-8:54 pm

1 stop7h 11m

San Diego

Sat 11/8

6:45 am-3:30 pm

1 stop7h 45m

$213

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Tue 10/21

1:58 pm-9:12 pm

1 stop8h 14m

San Diego

Fri 10/24

6:16 am-4:01 pm

1 stop8h 45m

$214

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sun 11/2

2:01 pm-8:34 pm

1 stop7h 33m

San Diego

Sat 11/8

6:15 am-12:14 pm

1 stop4h 59m

$217

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Fri 10/3

10:26 pm-7:29 am

1 stop10h 03m

San Diego

Sun 10/12

8:11 am-8:11 pm

1 stop11h 00m

$222

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sun 11/2

2:01 pm-8:34 pm

1 stop7h 33m

San Diego

Sat 11/8

6:30 am-5:39 pm

2 stops10h 09m

$245

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 1/17

3:55 pm-9:59 pm

1 stop7h 04m

San Diego

Fri 1/23

10:27 am-10:04 pm

2 stops10h 37m

$271

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montana to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of April, then departing from Montana during the month February is also very affordable. Most momondo users find prices during this month for around $259.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Montana to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $377. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $582. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $263. Flights in the morning are often more expensive with an average ticket price of $582.

What is the cheapest Montana to San Diego flight route?

Fly from Bozeman Gallatin Field to San Diego for the best Montana - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Montana when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Montana for as low as $231 on momondo.

What cabin class options are available on Montana to San Diego flights?

There are 3 cabin classes available to choose from on Montana to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montana to San Diego flights?

You could potentially save up to 14% on your flight if you consider stops on a Montana to San Diego flight.

Cheap Montana to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to San Diego

Fastest flight time	2h 53m
Direct flights	Mon, Fri, Sat and Sun
Airports in San Diego	1 airport

The fastest flight from Montana to San Diego takes 2h 53m

Direct flights go from Montana to San Diego on Monday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

When did momondo last update prices for flights from Montana to San Diego Airport?
Prices for flights from Montana to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Montana to San Diego Airport?
The number of operators available for flights from Montana to San Diego Airport is 6 as of September 2025.
How old do you have to be to fly from Montana to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montana to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Montana to San Diego is Embraer 175 (66.67% of total bookings). The next most popular plane models are Embraer 170 (27.27%), Embraer 175 (Enhanced Winglets) (3.03%), and Boeing 737-800 Passenger/BBJ2 (winglets) (3.03%).

Best airlines flying from Montana to San Diego

Compare and see reviews for airlines that fly from Montana to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $138	Free Cancellation	Rating 7.8 2,732 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $165	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $176	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $216	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $220	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights

Coronado

Chula Vista

El Cajon

Julian

La Mesa

National City

Poway

Imperial Beach

San Ysidro

Borrego Springs

Lemon Grove

Alpine

Santee

Why use momondo?

Why should I use momondo to find a flight deal from Montana to San Diego?

It is quick and easy to find Montana to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from Montana to San Diego with flexible booking policies on momondo?

Flights from Montana to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Montana to San Diego?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from Montana.

I’m not ready to book a flight from Montana to San Diego right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Diego from Montana. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Airports servicing California

Popular cities in the United States

Flights to New Yorkfrom $49

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $47

Flights to Orlandofrom $60

Flights to Las Vegasfrom $48

Flights to San Franciscofrom $53

Flights to Washington, D.C.from $49

Flights to Bostonfrom $73

Flights to Atlantafrom $51

Flights to Dallasfrom $56

Flights to Seattlefrom $86

Fly to other destinations from Montana

Flights from Bozeman Gallatin Field to Boise Air Term. Gowen Fld

Flights from Great Falls to Las Vegas Harry Reid Intl

Flights from Missoula Johnson-Bell Field to Las Vegas Harry Reid Intl

Flights from Bozeman Gallatin Field to Las Vegas Harry Reid Intl

Flights from Kalispell Glacier Park to Las Vegas Harry Reid Intl

Flights from Bozeman Gallatin Field to Nashville Intl

Cheap flights from Montana to San Diego from $85

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to San Diego departing on 9/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Find the cheapest flights from Montana to San Diego

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Delta flights from Montana to San Diego

Our best Delta deals on Montana to San Diego flight tickets

Alaska Airlines flights from Montana to San Diego

Our best Alaska Airlines deals on Montana to San Diego flight tickets

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

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How to get the cheapest flight ticket from Montana to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of April, then departing from Montana during the month February is also very affordable. Most momondo users find prices during this month for around $259.

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $263. Flights in the morning are often more expensive with an average ticket price of $582.

What is the cheapest Montana to San Diego flight route?

Fly from Bozeman Gallatin Field to San Diego for the best Montana - San Diego flight prices

How far in advance should I book a flight to San Diego?

What cabin class options are available on Montana to San Diego flights?

There are 3 cabin classes available to choose from on Montana to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montana to San Diego flights?

You could potentially save up to 14% on your flight if you consider stops on a Montana to San Diego flight.

What is the cheapest airline that flies from Montana to San Diego?

Southwest, United Airlines, and Delta are the most popular carriers operating from Montana to San Diego

What airlines fly to San Diego?

How long does it take to fly to San Diego?

On average, it takes 2h 53m to fly from Montana to San Diego if you fly out of Bozeman (the most popular airport in Montana) and into San Diego (the most popular airport in San Diego). If you’re flying out of Kalispell and into San Diego, then the flight time is around 4h 20m.

Cheap Montana to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to San Diego

Fastest flight time

Direct flights

Airports in San Diego

When did momondo last update prices for flights from Montana to San Diego Airport?

How many operators does momondo search for flights from Montana to San Diego Airport?

How old do you have to be to fly from Montana to San Diego Airport?

What documentation or ID do you need to fly to San Diego Airport?

What is the most popular plane model from Montana to San Diego?

Best airlines flying from Montana to San Diego

Compare and see reviews for airlines that fly from Montana to San Diego with momondo

Traveling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from Montana to San Diego?

Can I find flights from Montana to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from Montana to San Diego?

I’m not ready to book a flight from Montana to San Diego right now. Can momondo alert me if prices change?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California