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C$147 Cheap Flights from San Diego International (SAN) to Missoula (MSO)

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Flight deals from San Diego International to Missoula

Looking for a cheap last-minute deal or the best return flight from San Diego International Airport to Missoula Airport? If you want to travel next month, return fares start from C$433. Find the lowest prices on one-way and return tickets right here.
Missoula.C$147 per passenger.Departing Sat., Jun. 13.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Sat., Jun. 13, arriving in Missoula.Price includes taxes and charges.From C$147, select.
Missoula.C$158 per passenger.Departing Sat., Aug. 15.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Sat., Aug. 15, arriving in Missoula.Price includes taxes and charges.From C$158, select.
Missoula.C$205 per passenger.Departing Mon., Jul. 20.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Mon., Jul. 20, arriving in Missoula.Price includes taxes and charges.From C$205, select.
Missoula.C$265 per passenger.Departing Sat., Aug. 8.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from San Diego International on Sat., Aug. 8, arriving in Missoula.Price includes taxes and charges.From C$265, select.
Missoula.C$348 per passenger.Departing Mon., Jul. 20.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from San Diego International on Mon., Jul. 20, arriving in Missoula.Price includes taxes and charges.From C$348, select.
Missoula.C$750 per passenger.Departing Sat., Jun. 13.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from San Diego International on Sat., Jun. 13, arriving in Missoula.Price includes taxes and charges.From C$750, select.

Find the cheapest month to fly from San Diego International to Missoula from C$147 one-way

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego International to Missoula flights are currently cheapest in June.
May
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Jun.
from C$146
Jul.
from C$204
Aug.
from C$158
Sep.
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Which airlines fly from San Diego International to Missoula?

San Diego International to Missoula: Alternative routes

Compare routes from San Diego International to Missoula below. You may find an airport to fly into that's cheaper, faster, or easier than Missoula.

Missoula

8km from central Missoula
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from C$147
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San Diego to Missoula: Flight information

The things to know before you go.
Cheapest flight foundC$147
Cheapest month to flyJune
Average flight time2 hrs, 48 mins
Most popular airlineHorizon Air
Average flights per week8

Finding cheap flights from San Diego International to Missoula: Frequently asked questions

The best price we found for a return flight from San Diego International to Missoula is C$387. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 48 minutes is the average flight time from San Diego International to Missoula.
Horizon Air, Alaska Airlines and American Airlines fly direct from San Diego International to Missoula.
As of May 2026, there are 8 flights per week flying from San Diego International to Missoula.
The cheapest month to fly from San Diego International to Missoula is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to Missoula Airport on Wednesday, August 26, 2026.
Yes – the average flight time is 2 hours and 48 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Missoula but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Missoula is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Alaska Airlines offer the cheapest flight tickets to Missoula.

Traveling from San Diego International Airport (SAN) to Missoula International Airport (MSO): what you need to know

  • The average duration of a direct flight from San Diego International Airport to Missoula International Airport is 2 hours 37 minutes. Missoula's timezone is UTC-6, making Missoula 1 hour ahead of San Diego.

  • Delays at security and check-in are more likely if you're heading away during high season, so give yourself some extra wiggle room. A good rule for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • To break up your flight from San Diego International Airport to Missoula International Airport, add a stopover to your trip. Just uncheck 'Direct flights only' and find a city that appeals to you. Popular stopovers on the SAN - MSO route are:

    • Harry Reid Airport (formerly McCarran Airport)

    • Metropolitan Oakland International Airport

    • Salt Lake City International Airport

How to find the cheapest flights from San Diego International Airport (SAN) to Missoula International Airport (MSO)

  • C$147 is the best price for a one-way ticket from San Diego International Airport to Missoula International Airport. Return flights start at C$388. These fares may change based on demand and availability.

  • To snag cheap flight tickets from SAN to MSO, book your journey 10 months ahead of the departure date.

  • June is the cheapest month for flight tickets from San Diego International Airport to Missoula International Airport. If you prefer to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares for every month.

  • Finding a cheap ticket from SAN to MSO is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when there's a better deal.

  • Tailor your trip with filters. Choose your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from San Diego International Airport to Missoula International Airport.

Handy information about San Diego International Airport (SAN)

  • Traveling from central San Diego to San Diego International Airport takes around 20 minutes by public transport. If you drive, ride-share or take a cab, you'll cover the 5 kilometres in 9 minutes or so, depending on traffic conditions.

  • Looking for a handy hotel near SAN? If you're on an early flight from San Diego International Airport to Missoula International Airport, these stays will have you moments from your check-in counter:

Arriving at Missoula International Airport (MSO)

Getting from Missoula International Airport (MSO) to central Missoula

  • From Missoula International Airport, Missoula is approximately 11 kilometres away. It takes around 11 minutes to reach the center driving.

  • It'll take around 35 minutes if you're using public transport.

When to fly to Missoula International Airport (MSO)

  • July is the busiest month for flights from San Diego International Airport to Missoula International Airport. To steer clear of the crowds, go to Missoula in February.

  • The warmest month in Missoula is July, with the temperature ranging between 8ºC and 33ºC. Book your flights from San Diego International Airport to Missoula International Airport in this month if you enjoy this type of weather.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from SAN to MSO in December. Average temperatures are between -15ºC and 3ºC then.

More about Missoula

  • Once you've locked in your flights from SAN to MSO, you'll want to find a hotel in Missoula. Make one of these accommodation options your base for exploring this city:

  • All great journeys should include a little sightseeing. A Carousel for Missoula, Missoula Art Museum and Fort Missoula Museum are must-have experiences during your Missoula visit.

Complete your Missoula trip with hotels and a car rental

  • You've booked your cheap ticket to Missoula International Airport — now it's time to find a place to stay, and maybe even a set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in Missoula.

Plan the rest of your trip from San Diego to Missoula

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.