Is American Airlines the cheapest airline to fly with from Denver to San Diego?

With an average price of $306 return, American Airlines is not the cheapest airline to fly from Denver to San Diego with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $147 on average.

What is the cheapest American Airlines flight from Denver to San Diego?

In the last 3 days, the lowest price for a flight with American Airlines from Denver to San Diego was $117 for a return flight and $69 for a one-way flight.

Does American Airlines fly direct to San Diego from Denver?

No, American Airlines does not fly the route directly.

What’s the cheapest day of the week to fly from Denver to San Diego with American Airlines?

On average, the cheapest day of the week to fly from Denver to San Diego with American Airlines is Monday, when prices are around $99. The most expensive day is generally Sunday, where the average price is around $319.

$109 Cheap American Airlines Flights from Denver to San Diego

Flights Deals

Cheap American Airlines Flight Deals from Denver to San Diego

Here are some of the best deals found on KAYAK recently from American Airlines for round-trip flights from Denver to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Recent round-trip American Airlines flight deals from Denver to San Diego

KAYAK's recommended round-trip American Airlines deals departing in the coming months from Denver to San Diego.

Discover the best prices for you by selecting your travel dates on KAYAK.

6:45 pm - 9:55 pmDEN-SAN

4h 10m1 stop

4:24 pm - 9:42 pmSAN-DEN

4h 18m1 stop

$217American Airlines

Find Deal

Thu, Jul 10 - Tue, Jul 15

6:59 pm - 9:48 pmDEN-SAN

3h 49m1 stop

9:50 am - 6:06 pmSAN-DEN

7h 16m1 stop

$230American Airlines

Find Deal

Thu, Jul 3 - Tue, Jul 8

6:59 pm - 9:48 pmDEN-SAN

3h 49m1 stop

4:24 pm - 9:42 pmSAN-DEN

4h 18m1 stop

$237American Airlines

Find Deal

Thu, Jun 12 - Mon, Jun 16

11:16 am - 3:41 pmDEN-SAN

5h 25m1 stop

6:20 am - 12:10 pmSAN-DEN

4h 50m1 stop

$247American Airlines

Find Deal

Thu, May 29 - Sun, Jun 1

8:55 pm - 12:16 amDEN-SAN

4h 21m1 stop

4:24 pm - 9:42 pmSAN-DEN

4h 18m1 stop

$257American Airlines

Find Deal

Sun, Jul 6 - Wed, Jul 9

6:59 pm - 9:48 pmDEN-SAN

3h 49m1 stop

9:38 pm - 2:30 amSAN-DEN

3h 52m1 stop

$270American Airlines

Find Deal

Thu, Jul 3 - Sun, Jul 6

6:59 pm - 9:48 pmDEN-SAN

3h 49m1 stop

4:24 pm - 9:42 pmSAN-DEN

4h 18m1 stop

$282American Airlines

Find Deal

Thu, Jun 19 - Mon, Jun 23

8:55 pm - 12:16 amDEN-SAN

4h 21m1 stop

4:24 pm - 9:42 pmSAN-DEN

4h 18m1 stop

$287American Airlines

Find Deal

Sun, Jul 6 - Fri, Jul 11

8:01 am - 12:00 pmDEN-SAN

4h 59m1 stop

4:31 pm - 10:39 pmSAN-DEN

5h 08m1 stop

$347American Airlines

Find Deal

Mon, May 26 - Mon, May 26

11:16 am - 3:41 pmDEN-SAN

5h 25m1 stop

4:31 pm - 10:39 pmSAN-DEN

5h 08m1 stop

$487American Airlines

Find Deal

Thu, May 29 - Sat, May 31

Useful Info

Low season	January
High season	July
Cheapest flight	$109
Average price round-trip	$187

Best time to beat the crowds with an average 4% drop in price.

Most popular time to fly and prices are also 1% lower on average.

Flight from Denver to San Diego

(price for this month)

When to Book Flights with American Airlines from Denver to San Diego

Average price per month

Flight prices as travel date approaches

Is American Airlines the cheapest airline to fly with from Denver to San Diego?
With an average price of $306 return, American Airlines is not the cheapest airline to fly from Denver to San Diego with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $147 on average.
What is the cheapest American Airlines flight from Denver to San Diego?
In the last 3 days, the lowest price for a flight with American Airlines from Denver to San Diego was $117 for a return flight and $69 for a one-way flight.
Does American Airlines fly direct to San Diego from Denver?
No, American Airlines does not fly the route directly.
What’s the cheapest day of the week to fly from Denver to San Diego with American Airlines?
On average, the cheapest day of the week to fly from Denver to San Diego with American Airlines is Monday, when prices are around $99. The most expensive day is generally Sunday, where the average price is around $319.

7.2

GoodBased on 10,000 verified guest reviews

7.2Comfort

6.5Food

8.0Crew

6.9Entertainment

7.5Boarding

Pros +

Cons -

Show reviews that mention

10.0 Wonderful

Mitchell, Apr 2025

CMH-ORD

Quick boarding, early departure, on time gate arrival

8.0 Very good

James, Apr 2025

IAH-LHR

First time flying BA. Will fly again.

2.0 Poor

Verified traveler, Apr 2025

HND-JFK

Paid $35 and not able to access the internet at all.

10.0 Wonderful

Verified traveler, Apr 2025

LHR-SFO

Flight was as expected.

8.0 Very good

Verified traveler, Apr 2025

FCO-LHR

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

10.0 Wonderful

Douglas, Apr 2025

CLT-MIA

Would like free wifi

4.0 Mediocre

Duncan, Apr 2025

SAV-DFW

Several delays. Next flight was worse. Did not arrive home until 2am PT

8.0 Very good

Constantine, Apr 2025

LAX-LAS

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

4.0 Mediocre

saed, Apr 2025

LHR-HAM

No so good not so bad

10.0 Wonderful

saed, Apr 2025

YYZ-LHR

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

Everything you need to know for your flight from Denver to San Diego

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DEN - SAN

$109 Find Cheap American Airlines Flights from Denver to San Diego

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Cheap American Airlines Flight Deals from Denver to San Diego

Recent round-trip American Airlines flight deals from Denver to San Diego

Recent one-way American Airlines flight deals from Denver to San Diego

Good to know

When to Book Flights with American Airlines from Denver to San Diego

FAQs for flying to San Diego with American Airlines

Is American Airlines the cheapest airline to fly with from Denver to San Diego?

What is the cheapest American Airlines flight from Denver to San Diego?

Does American Airlines fly direct to San Diego from Denver?

What’s the cheapest day of the week to fly from Denver to San Diego with American Airlines?

American Airlines Customer Reviews

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Everything you need to know for your flight from Denver to San Diego

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Top American Airlines flights

The most popular destinations for flights with American Airlines according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Cabin class types available on flights to San Diego

Cabin classes available on flights to Denver. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to San Diego with a hotel stay or car rental

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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