฿3,620 Cheap American Airlines flights from Denver to San Diego (DEN→SAN)

View ฿3,620 flight on Wed, 21 Jan 2026Opens in a new window
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American Airlines flights from Denver to San Diego (DEN→SAN)

Prices were available within the past 7 days and start at ฿3,620 for one-way flights and ฿10,570 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, 8 Feb - Sun, 15 Feb
DEN
Denver
SAN
San Diego
฿10,570 Return, found 2 days ago
฿10,570
Return
found 2 days ago
Select American Airlines flight, departing Sun, 8 Feb from Denver to San Diego, returning Sun, 15 Feb, priced at ฿10,570 found 2 days ago
American Airlines
Sun, 8 Feb - Sun, 15 Feb
DEN
Denver
SAN
San Diego
฿10,665 Return, found 2 days ago
฿10,665
Return
found 2 days ago
Select American Airlines flight, departing Sun, 8 Feb from Denver to San Diego, returning Sun, 15 Feb, priced at ฿10,665 found 2 days ago
American Airlines
Sun, 11 Jan - Sat, 17 Jan
DEN
Denver
SAN
San Diego
฿12,590 Return, found 1 day ago
฿12,590
Return
found 1 day ago
Select American Airlines flight, departing Sun, 11 Jan from Denver to San Diego, returning Sat, 17 Jan, priced at ฿12,590 found 1 day ago

Find the cheapest month to fly from Denver (DEN) to San Diego (SAN)

February is typically the cheapest month to fly

From ฿1,541 - ฿3,457 per traveller.

Frequently asked questions

How much is an American Airlines flight from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)?
Landing cheap one-way American Airlines flights from DEN to SAN from ฿3,620 on Expedia is a breeze — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from ฿10,570 for your next getaway.**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 DEN to SAN with American Airlines?
January is one of the cheapest months to jet away to San Diego with American Airlines. You could also find great deals on one-way and return fares in November.
Does American Airlines fly nonstop from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)?
Enter your dates, click search and check "Nonstop" on Expedia to browse any direct flights from DEN to SAN with American Airlines or other carriers.
What airports does American Airlines fly into in San Diego?
San Diego Intl. Airport (SAN) is the primary San Diego hub for American Airlines flights from Denver Intl. Airport (DEN).
Can I change or cancel my American Airlines flight from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)?
Changes are usually free within 24 hours of making your booking, but your airline may charge you after that time. For further information about modifying your flights, check out your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to update your itinerary without being charged, apply the "Changes included" or "No cancel fee" filter when organising your next adventure.

Travel information

Origin airport
Denver Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
United
Distance
1363 km
Average flight time
1 hour 26 mins

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*Available to Expedia members.