What are the cheapest airlines flying from San Diego to Missoula round-trip?

Frontier, at $225, was found to be the cheapest airline from San Diego to Missoula.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that Frontier is 42% cheaper than the other options available to this destination.

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

One-way options have recently been found by users for as low as $119 on Frontier. Other airlines that offer cheap prices include Delta from $144 and Hawaiian Airlines from $163 one-way.

What is the cheapest day to fly from San Diego to Missoula?

Travelers seeking maximum savings on their San Diego to Missoula flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Missoula ranges from 0.7 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Missoula when rainfall is around 0.7 in.

If weather is an important factor for your trip to Missoula, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.8 F).

What are the most reliable airlines from San Diego to Missoula?

Before booking your flight to Missoula from San Diego, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (80%), American Airlines (80%), Alaska Airlines( 80%).

What are the most popular airlines that fly from San Diego to Missoula?

Consider Alaska Airlines, Delta or Hawaiian Airlines when booking your flight. These represent the most popular airlines when flying from San Diego to Missoula.

What is the cheapest day to fly round-trip from San Diego to Missoula?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 41% when planning your travel around this day of the week.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 34 days in advance, which can save you up to 126% on flights from San Diego to Missoula compared to booking the week you need them. Waiting 34 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $283. For sooner than that we have options available in the next 3 days from $596.

What is the cheapest month to fly from San Diego to Missoula?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to Missoula. Flights to Missoula from San Diego in October are about $393 on average during October, but can be found for as low as $313.

Can I find deals for flights from San Diego to Missoula that include hotel bookings?

Yes. In addition to deals on San Diego to Missoula flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Diego to Missoula?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Missoula.

Can I find deals for business class flights from San Diego to Missoula?

Yes. Cheapflights offers flight deals from San Diego to Missoula by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$117+ Flights from San Diego to Missoula

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Cheapflights Tip: The best prices from San Diego to Missoula Johnson-Bell Field are usually found in October or April, booked 75 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from San Diego to Missoula

Round-trip from	$180 (Mytrip)
One-way from	$117 (Mytrip)
Popular in	December
Cheapest in	October
Average price	$392

From San Diego to Missoula Johnson-Bell Field

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One-way flight from San Diego to Missoula Johnson-Bell Field

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Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from San Diego to Missoula

Cheapest flights from San Diego to Missoula
Explore the most affordable flight options available from San Diego to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Fri 8/226:15 amSAN - MSO

1 stop13h 42mMultiple Airlines

Mon 8/256:21 pmMSO - SAN

1 stop14h 00mMultiple Airlines

Deal found 7/23

$180

Thu 8/146:25 amSAN - MSO

1 stop28h 29mFrontier

Mon 8/1812:40 pmMSO - SAN

1 stop12h 12mFrontier

Deal found 7/24

$225

Tue 9/96:20 amSAN - MSO

1 stop7h 16mDelta

Tue 9/165:30 amMSO - SAN

1 stop4h 19mDelta

Deal found 7/24

$241

Sat 9/201:17 pmSAN - MSO

1 stop9h 01mAmerican Airlines

Wed 9/241:51 pmMSO - SAN

1 stop9h 45mAmerican Airlines

Deal found 7/24

$264

Sat 9/203:06 pmSAN - MSO

2 stops8h 21mAlaska Airlines

Wed 9/241:12 pmMSO - SAN

2 stops23h 48mAlaska Airlines

Deal found 7/22

$275

Wed 10/228:00 amSAN - MSO

1 stop6h 23mHawaiian Airlines

Sat 10/251:07 pmMSO - SAN

1 stop8h 07mHawaiian Airlines

Deal found 7/24

$284

Best flights from San Diego to Missoula
Discover carefully curated flight deals from San Diego to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2025.

Fri 8/226:15 amSAN - MSO

1 stop13h 42mMultiple Airlines

Mon 8/256:21 pmMSO - SAN

1 stop14h 00mMultiple Airlines

Deal found 7/23

$180

Thu 8/146:25 amSAN - MSO

1 stop28h 29mFrontier

Mon 8/1812:40 pmMSO - SAN

1 stop12h 12mFrontier

Deal found 7/24

$225

Tue 9/96:20 amSAN - MSO

1 stop7h 16mDelta

Tue 9/165:30 amMSO - SAN

1 stop4h 19mDelta

Deal found 7/24

$241

Sat 9/201:17 pmSAN - MSO

1 stop9h 01mAmerican Airlines

Wed 9/241:51 pmMSO - SAN

1 stop9h 45mAmerican Airlines

Deal found 7/24

$264

Sat 9/203:06 pmSAN - MSO

2 stops8h 21mAlaska Airlines

Wed 9/241:12 pmMSO - SAN

2 stops23h 48mAlaska Airlines

Deal found 7/22

$275

Wed 10/228:00 amSAN - MSO

1 stop6h 23mHawaiian Airlines

Sat 10/251:07 pmMSO - SAN

1 stop8h 07mHawaiian Airlines

Deal found 7/24

$284

Last-minute flights from San Diego to Missoula
Discover last-minute flight deals from San Diego to Missoula. Data last updated July 25, 2025 and is based on user searches.

Tue 7/2912:23 pmSAN - MSO

2 stops10h 56mAlaska Airlines

Tue 8/54:13 pmMSO - SAN

2 stops8h 29mAlaska Airlines

Deal found 7/22

$339

Tue 7/297:10 pmSAN - MSO

1 stop4h 14mDelta

Tue 8/55:30 amMSO - SAN

1 stop4h 09mDelta

Deal found 7/22

$351

Sun 8/39:40 pmSAN - MSO

2 stops22h 29mMultiple Airlines

Fri 8/89:54 pmMSO - SAN

1 stop13h 01mMultiple Airlines

Deal found 7/22

$229

Sun 8/36:25 amSAN - MSO

1 stop28h 29mFrontier

Fri 8/812:40 pmMSO - SAN

1 stop12h 12mFrontier

Deal found 7/22

$308

Thu 8/146:25 amSAN - MSO

1 stop28h 29mFrontier

Mon 8/1812:40 pmMSO - SAN

1 stop12h 12mFrontier

Deal found 7/24

$225

Sun 8/176:15 amSAN - MSO

1 stop8h 02mHawaiian Airlines

Sun 8/245:45 amMSO - SAN

1 stop5h 14mHawaiian Airlines

Deal found 7/24

$415

Wed 8/205:00 pmSAN - MSO

1 stop6h 15mDelta

Wed 8/275:49 amMSO - SAN

1 stop7h 59mDelta

Deal found 7/23

$264

Wed 8/203:06 pmSAN - MSO

2 stops8h 21mAlaska Airlines

Wed 8/275:45 amMSO - SAN

2 stops7h 01mAlaska Airlines

Deal found 7/23

$285

Fri 8/226:15 amSAN - MSO

1 stop13h 42mMultiple Airlines

Mon 8/256:21 pmMSO - SAN

1 stop14h 00mMultiple Airlines

Deal found 7/23

$180

One-way flights from San Diego to Missoula
Search for one-way flight options from San Diego to Missoula. Find affordable one-way fares based on user searches. Data last updated July 25, 2025.

Sun 8/109:40 pmSAN - MSO

2 stops22h 29mMultiple Airlines

Deal found 7/23

$117

Sun 8/106:25 amSAN - MSO

1 stop28h 29mFrontier

Deal found 7/23

$119

Thu 8/217:15 pmSAN - MSO

1 stop4h 00mDelta

Deal found 7/22

$144

Thu 8/286:15 amSAN - MSO

1 stop8h 03mHawaiian Airlines

Deal found 7/23

$163

Tue 8/1210:11 pmSAN - MSO

2 stops16h 06mAlaska Airlines

Deal found 7/23

$177

Tue 8/510:40 amSAN - MSO

1 stop10h 08mAmerican Airlines

Deal found 7/23

$181

Tue 8/126:15 amSAN - MSO

3 stops38h 08mUnited Airlines

Deal found 7/23

$366

Fly from

Fly to

Route

Depart

Return

Price

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Fri 8/22

6:15 am-8:57 pm

1 stop13h 42m

Missoula Johnson-Bell Field

Mon 8/25

6:21 pm-7:21 am

1 stop14h 00m

$180

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 8/14

6:25 am-11:54 am

1 stop28h 29m

Missoula Johnson-Bell Field

Mon 8/18

12:40 pm-11:52 pm

1 stop12h 12m

$225

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Tue 9/9

6:20 am-2:36 pm

1 stop7h 16m

Missoula Johnson-Bell Field

Tue 9/16

5:30 am-8:49 am

1 stop4h 19m

$241

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Sat 9/20

1:17 pm-11:18 pm

1 stop9h 01m

Missoula Johnson-Bell Field

Wed 9/24

1:51 pm-10:36 pm

1 stop9h 45m

$264

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Sat 9/20

3:06 pm-12:27 am

2 stops8h 21m

Missoula Johnson-Bell Field

Wed 9/24

1:12 pm-12:00 pm

2 stops23h 48m

$275

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Wed 10/22

8:00 am-3:23 pm

1 stop6h 23m

Missoula Johnson-Bell Field

Sat 10/25

1:07 pm-8:14 pm

1 stop8h 07m

$284

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Sun 8/10

9:40 pm-9:09 pm

2 stops22h 29m

$117

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Sun 8/10

6:25 am-11:54 am

1 stop28h 29m

$119

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 8/21

7:15 pm-12:15 am

1 stop4h 00m

$144

San DiegoMissoula

SAN - MSO

SANMSO

San Diego

Thu 8/28

6:15 am-3:18 pm

1 stop8h 03m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 13 results

Best time to book a flight from San Diego to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from San Diego 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 San Diego to Missoula

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

To ensure you get the cheapest price possible for a flight from San Diego to Missoula, you should look to book at least 74 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 San Diego to Missoula?

Currently, October is the cheapest month in which you can book a flight from San Diego to Missoula (average of $365). Flying from San Diego to Missoula in March is currently the most expensive (average of $506). 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 SAN to MSO?

A simple way to save on the total cost of your ticket is to fly from San Diego to Missoula in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Missoula

Read through reviews of airlines operating flights from San Diego to Missoula, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

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

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

7,967 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,595 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

8,880 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

What are the cheapest airlines flying from San Diego to Missoula round-trip?
Frontier, at $225, was found to be the cheapest airline from San Diego to Missoula.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that Frontier is 42% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from San Diego to Missoula one-way?
One-way options have recently been found by users for as low as $119 on Frontier. Other airlines that offer cheap prices include Delta from $144 and Hawaiian Airlines from $163 one-way.
What are the most reliable airlines from San Diego to Missoula?
Before booking your flight to Missoula from San Diego, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (80%), American Airlines (80%), Alaska Airlines( 80%).
Can I find deals for flights from San Diego to Missoula that include hotel bookings?
Yes. In addition to deals on San Diego to Missoula flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Diego to Missoula?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Missoula.
Can I find deals for business class flights from San Diego to Missoula?
Yes. Cheapflights offers flight deals from San Diego to Missoula 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 San Diego to Missoula?
Currently, October is the cheapest month in which you can book a flight from San Diego to Missoula (average of $365). Flying from San Diego to Missoula in March is currently the most expensive (average of $506). 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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Missoula

Top 4 airlines flying from San Diego to Missoula

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$263	Average$354	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$276	Average$440	FlexibilityNo cancel fee	On-time85%
Alaska Airlines	Cheapest$286	Average$374	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$311	Average$523	FlexibilityNo cancel fee	On-time69%

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$117+ Cheap flights from San Diego to Missoula (SAN - MSO)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to Missoula with Cheapflights

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Cheapflights Tip: The best prices from San Diego to Missoula Johnson-Bell Field are usually found in October or April, booked 75 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from San Diego to Missoula

Round-trip from

One-way from

Popular in

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Find flight deals from San Diego to Missoula

Cheapest flights from San Diego to MissoulaExplore the most affordable flight options available from San Diego to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Explore the most affordable flight options available from San Diego to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from San Diego to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from San Diego with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Missoula

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Missoula. Price data was last updated on July 18, 2025.

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

What is the cheapest time of day to fly from SAN to MSO?

Find hourly flight availability from San Diego to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2025.

Reviews of airlines servicing Missoula

Read through reviews of airlines operating flights from San Diego to Missoula, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Missoula. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from San Diego to Missoula round-trip?

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

What are the most reliable airlines from San Diego to Missoula?

Can I find deals for flights from San Diego to Missoula that include hotel bookings?

How can I find direct flights from San Diego to Missoula?

Can I find deals for business class flights from San Diego to Missoula?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Missoula

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from San Diego to Missoula

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Cheapest flights from San Diego to Missoula
Explore the most affordable flight options available from San Diego to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.