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

Southwest, American Airlines, and Frontier are the most popular carriers operating from Montana to San Diego

How long does it take to fly to San Diego?

On average, it takes 2h 49m 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 3h 17m.

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 many flights depart from Montana to San Diego on average per week?

The number of flights available between Montana and San Diego is 28 per week as of August 2025. The most frequent departure day is Sat, with 32% of weekly flights leaving on this day.

How many flights depart from Montana to San Diego on average per day?

As of August 2025, 4 flights take off from Montana and land in San Diego each day. The most common flight departure time for this route is 12:00PM, with 53% of daily flights taking off in the afternoon.

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 August 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.

$99 Cheap Flights from Montana to San Diego in 2025

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Find the cheapest flights from Montana to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:33 pm - 7:29 amFCA-SAN

14h 56m1 stop

8:25 am - 4:43 pmSAN-FCA

7h 18m1 stop

$176

Find Deal

Thu, Sep 4 - Sun, Sep 7

5:33 pm - 11:34 pmFCA-SAN

7h 01m1 stop

6:15 am - 4:43 pmSAN-FCA

9h 28m1 stop

$179

Find Deal

Thu, Sep 4 - Sun, Sep 7

5:00 pm - 11:15 pmBZN-SAN

7h 15m1 stop

3:40 pm - 9:30 pmSAN-BZN

4h 50m1 stop

$187Southwest

Find Deal

Thu, Sep 4 - Sat, Sep 6

5:00 pm - 11:15 pmBZN-SAN

7h 15m1 stop

11:20 am - 4:50 pmSAN-BZN

4h 30m1 stop

$197Southwest

Find Deal

Fri, Aug 29 - Tue, Sep 2

11:29 am - 6:03 pmBZN-SAN

7h 34m1 stop

10:42 am - 7:17 pmSAN-BZN

7h 35m1 stop

$211American Airlines

Find Deal

Thu, Sep 4 - Sat, Sep 6

12:32 pm - 6:14 pmBZN-SAN

6h 42m1 stop

9:45 am - 7:17 pmSAN-BZN

8h 32m2 stops

$216American Airlines

Find Deal

Sat, Aug 30 - Sat, Sep 6

7:35 am - 1:02 pmBZN-SAN

6h 27m1 stop

3:35 pm - 10:23 pmSAN-BZN

5h 48m1 stop

$237Delta

Find Deal

Wed, Sep 10 - Mon, Sep 15

6:20 pm - 11:44 pmMSO-SAN

6h 24m1 stop

7:10 pm - 12:18 amSAN-MSO

4h 08m1 stop

$241Delta

Find Deal

Tue, Sep 16 - Sun, Sep 21

5:22 am - 11:46 amBZN-SAN

7h 24m2 stops

3:06 pm - 12:12 amSAN-BZN

8h 06m2 stops

$258Alaska Airlines

Find Deal

Wed, Sep 10 - Wed, Sep 17

1:54 pm - 8:18 pmBZN-SAN

7h 24m1 stop

3:06 pm - 12:12 amSAN-BZN

8h 06m2 stops

$275Alaska Airlines

Find Deal

Wed, Sep 10 - Wed, Sep 17

American Airlines flights from Montana to San Diego

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

American Airlines

Sep 4

BZN11:29 amBozeman Gallatin Field

7h 34m

1 stop

SAN6:03 pmSan Diego

Sep 6

SAN10:42 amSan Diego

7h 35m

1 stop

BZN7:17 pmBozeman Gallatin Field

$211

Find similar

American Airlines

Aug 30

BZN12:32 pmBozeman Gallatin Field

6h 42m

1 stop

SAN6:14 pmSan Diego

Sep 6

SAN9:45 amSan Diego

8h 32m

2 stops

BZN7:17 pmBozeman Gallatin Field

$216

Find similar

American Airlines

Sep 4

BZN11:29 amBozeman Gallatin Field

8h 55m

2 stops

SAN7:24 pmSan Diego

Sep 6

SAN9:45 amSan Diego

8h 32m

2 stops

BZN7:17 pmBozeman Gallatin Field

$221

Find similar

Delta flights from Montana to San Diego

Our best Delta deals on Montana to San Diego flight tickets

Delta

Sep 10

BZN7:35 amBozeman Gallatin Field

6h 27m

1 stop

SAN1:02 pmSan Diego

Sep 15

SAN3:35 pmSan Diego

5h 48m

1 stop

BZN10:23 pmBozeman Gallatin Field

$237

Find similar

Delta

Sep 16

MSO6:20 pmMissoula Johnson-Bell Field

6h 24m

1 stop

SAN11:44 pmSan Diego

Sep 21

SAN7:10 pmSan Diego

4h 08m

1 stop

MSO12:18 amMissoula Johnson-Bell Field

$241

Find similar

Delta

Aug 22

MSO3:31 pmMissoula Johnson-Bell Field

9h 12m

1 stop

SAN11:43 pmSan Diego

Aug 26

SAN11:05 amSan Diego

11h 05m

2 stops

MSO11:10 pmMissoula Johnson-Bell Field

$246

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KalispellSan Diego

FCA - SAN

FCASAN

Kalispell Glacier Park

Thu 9/4

5:33 pm-7:29 am

1 stop14h 56m

San Diego

Sun 9/7

8:25 am-4:43 pm

1 stop7h 18m

$176

KalispellSan Diego

FCA - SAN

FCASAN

Kalispell Glacier Park

Thu 9/4

5:33 pm-11:34 pm

1 stop7h 01m

San Diego

Sun 9/7

6:15 am-4:43 pm

1 stop9h 28m

$179

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 9/4

5:00 pm-11:15 pm

1 stop7h 15m

San Diego

Sat 9/6

3:40 pm-9:30 pm

1 stop4h 50m

$187

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Fri 8/29

5:00 pm-11:15 pm

1 stop7h 15m

San Diego

Tue 9/2

11:20 am-4:50 pm

1 stop4h 30m

$197

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Thu 9/4

11:29 am-6:03 pm

1 stop7h 34m

San Diego

Sat 9/6

10:42 am-7:17 pm

1 stop7h 35m

$211

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Sat 8/30

12:32 pm-6:14 pm

1 stop6h 42m

San Diego

Sat 9/6

9:45 am-7:17 pm

2 stops8h 32m

$216

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 9/10

7:35 am-1:02 pm

1 stop6h 27m

San Diego

Mon 9/15

3:35 pm-10:23 pm

1 stop5h 48m

$237

MissoulaSan Diego

MSO - SAN

MSOSAN

Missoula Johnson-Bell Field

Tue 9/16

6:20 pm-11:44 pm

1 stop6h 24m

San Diego

Sun 9/21

7:10 pm-12:18 am

1 stop4h 08m

$241

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 9/10

5:22 am-11:46 am

2 stops7h 24m

San Diego

Wed 9/17

3:06 pm-12:12 am

2 stops8h 06m

$258

BozemanSan Diego

BZN - SAN

BZNSAN

Bozeman Gallatin Field

Wed 9/10

1:54 pm-8:18 pm

1 stop7h 24m

San Diego

Wed 9/17

3:06 pm-12:12 am

2 stops8h 06m

$275

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 November is also very affordable. Most momondo users find prices during this month for around $257.

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 Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $341. 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 $310 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 55% 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

Best Price Found	$99
Fastest flight time	2h 49m
Direct flights	Mon, Tue, Wed, Sat and Sun
Airports in San Diego	1 airport

The best one-way flight to San Diego from Montana in the past 72 hours is $99. The best round-trip flight deal from Montana to San Diego found on momondo in the last 72 hours is $176.

The fastest flight from Montana to San Diego takes 2h 49m

Direct flights go from Montana to San Diego on Monday, Tuesday, Wednesday, Saturday and Sunday. Airlines offering direct flights are: American Airlines, Alaska Airlines and Hawaiian Airlines.

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 August 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 (62.16% of total bookings). The next most popular plane models are Embraer 170 (32.43%), Embraer 175 (Enhanced Winglets) (2.70%), and Boeing 737-800 Passenger/BBJ2 (winglets) (2.70%).

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
United Airlines	PriceFrom $176	Free Cancellation	Rating 7.4 8,905 reviews	Search United Airlines flights
Southwest	PriceFrom $194	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Delta	PriceFrom $216	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta 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
Hawaiian Airlines	PriceFrom $286	Free Cancellation	Rating 7.8 2,614 reviews	Search Hawaiian Airlines flights

Coronado

Chula Vista

El Cajon

Julian

National City

La Mesa

Imperial Beach

San Ysidro

Poway

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.

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Flights to Las Vegasfrom $30

Flights to San Franciscofrom $61

Flights to Washington, D.C.from $48

Flights to Bostonfrom $67

Flights to Atlantafrom $39

Flights to Dallasfrom $55

Flights to Seattlefrom $94

Fly to other destinations from Montana

Flights from Kalispell Glacier Park to Las Vegas Harry Reid Intl

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

Flights from Billings Logan Intl to Las Vegas Harry Reid Intl

Flights from Missoula Johnson-Bell Field to Los Angeles

Cheap flights from Montana to San Diego from $99

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 8/22. 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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Big names and deals

Filter for what you want

Filter for what you want

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Cheap round-trip flights

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American Airlines flights from Montana to San Diego

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

Delta flights from Montana to San Diego

Our best Delta 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.

See travel insights to San Diego from

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 November is also very affordable. Most momondo users find prices during this month for around $257.

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 55% 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, American Airlines, and Frontier are the most popular carriers operating from Montana to San Diego

What airlines fly to San Diego?

How many flights depart from Montana to San Diego on average per day?

As of August 2025, 4 flights take off from Montana and land in San Diego each day. The most common flight departure time for this route is 12:00PM, with 53% of daily flights taking off in the afternoon.

How many flights depart from Montana to San Diego on average per week?

The number of flights available between Montana and San Diego is 28 per week as of August 2025. The most frequent departure day is Sat, with 32% of weekly flights leaving on this day.

How long does it take to fly to San Diego?

On average, it takes 2h 49m 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 3h 17m.

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

Best Price Found

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