Alaska Airlines Flights from Denver to San Diego

Flexpay logo

Book now. Pay later.

Spread the cost of your flight over low monthly payments.

Lowest fares from Denver to San Diego

$178
Displaying fares for June-2025
05

Th

JUN

06

Fr

07

Sa

08

Su

09

Mo

10

Tu

11

We

12

Th

13

Fr

14

Sa

15

Su

16

Mo

17

Tu

18

We

19

Th

20

Fr

21

Sa

22

Su

23

Mo

24

Tu

25

We

26

Th

27

Fr

28

Sa

29

Su

30

Mo

01

Tu

JUL

02

We

03

Th

04

Fr

Range$178-$278

One-way low-fare flights Denver to San Diego.*

keyboard_arrow_down
sort
keyboard_arrow_down
One-way low-fare flights Denver to San Diego.*
From
To
Fare Type
Dates
Price
Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Nov 6, 2025

From

$93

Seen: 4 hours ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Oct 5, 2025

From

$93

Seen: 7 hours ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Jul 9, 2025

From

$98

Seen: 19 hours ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Sep 12, 2025

From

$102

Seen: 12 hours ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Dec 23, 2025

From

$139

Seen: 4 hours ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Dec 27, 2025

From

$159

Seen: 1 day ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Jul 25, 2025

From

$168

Seen: 1 day ago

Denver (DEN)San Diego (SAN)One-way
|
Saver
Depart: Jun 14, 2025

From

$178

Seen: 1 day ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.