￥101,100 Cheap American Airlines flights Missoula (MSO) to San Diego (SAN)

View ￥101,100 flight on Sun, Dec 21, 2025Opens in a new window
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￥101,100 Cheap American Airlines flights Missoula (MSO) to San Diego (SAN)

Prices were available within the past 7 days and start at ￥101,100 for one-way flights and ￥202,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Dec 21 - Tue, Dec 23
MSO
Missoula
SAN
San Diego
￥202,200 Roundtrip, found 21 hours ago
￥202,200
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Sun, Dec 21 from Missoula to San Diego, returning Tue, Dec 23, priced at ￥202,200 found 21 hours ago

Find the cheapest month to fly from Missoula (MSO) to San Diego (SAN)

January is typically the cheapest month to fly

From ￥35,811 - ￥84,968 per traveler.
Flights from Missoula (MSO) to San Diego (SAN)
Origin airport
Missoula Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
Delta
Distance
1590 km

Frequently asked questions

How much is an American Airlines flight from Missoula Intl. Airport (MSO) to San Diego Intl. Airport (SAN)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap American Airlines return flights from ￥202,200 from MSO to SAN. Affordable one-way options from ￥101,100 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MSO to SAN with American Airlines?
January is one of the cheapest months to jet off to San Diego with American Airlines. You could also find excellent prices on return and one-way fares in November.
Does American Airlines fly nonstop from Missoula Intl. Airport (MSO) to San Diego Intl. Airport (SAN)?
To find out if there's a direct trip from MSO to SAN with American Airlines or any other airlines, use our "Nonstop" filter when searching for tickets.
What airports does American Airlines fly into in San Diego?
San Diego Intl. Airport (SAN) is the main San Diego hub for American Airlines flights from Missoula Intl. Airport (MSO).
Can I change or cancel my American Airlines flight from Missoula Intl. Airport (MSO) to San Diego Intl. Airport (SAN)?
Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that. For more information about altering your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to update your itinerary without extra charges, tick the "Changes included" or "No cancel fee" filter when planning your trip.
*Available to Expedia members.