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Aurora

$46+ Cheap flights from San Diego (SAN) to Aurora, CO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Aurora are usually found in January or February, booked 65 days in advance, depart on a Friday or Thursday and return on a Wednesday

Find flight deals from San Diego to Aurora

Cheapest flights from San Diego to Aurora
Explore the most affordable flight options available from San Diego to Aurora. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:47 pmSAN - DEN
Nonstop2h 33mFrontier
Sun 12/285:43 pmDEN - SAN
Nonstop2h 32mFrontier
Deal found 10/30$69
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/204:47 pmSAN - DEN
Nonstop2h 33mFrontier
Mon 12/2210:29 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 10/27$77
This Priceline deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/204:47 pmSAN - DEN
Nonstop2h 33mFrontier
Wed 12/2410:29 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 10/30$78
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:25 amSAN - DEN
Nonstop2h 38mFrontier
Wed 12/2410:37 pmDEN - SAN
1 stop14h 34mFrontier
Deal found 10/29$79
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:47 pmSAN - DEN
Nonstop2h 33mFrontier
Mon 12/2910:29 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 10/28$81
This Cheapflightsfares deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:47 pmSAN - DEN
1 stop11h 11mFrontier
Sun 12/710:29 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 10/30$82
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:47 pmSAN - DEN
Nonstop2h 33mFrontier
Thu 12/256:15 amDEN - SAN
1 stop4h 42mFrontier
Deal found 10/29$87
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:14 pmSAN - DEN
1 stop10h 41mFrontier
Fri 1/210:29 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 10/28$89
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:21 pmSAN - DEN
1 stop7h 37mFrontier
Sun 12/215:43 pmDEN - SAN
Nonstop2h 32mFrontier
Deal found 10/28$90
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/134:47 pmSAN - DEN
Nonstop2h 33mFrontier
Sat 12/2010:44 pmDEN - SAN
1 stop12h 29mFrontier
Deal found 10/29$91
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:47 pmSAN - DEN
Nonstop2h 33mFrontier
Tue 12/3010:29 pmDEN - SAN
Nonstop2h 30mFrontier
Deal found 10/28$92
This Expedia deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:42 pmSAN - DEN
Nonstop2h 17mMultiple Airlines
Thu 12/1810:29 pmDEN - SAN
Nonstop2h 30mMultiple Airlines
Deal found 10/30$93

Cheap flight deals from San Diego to Aurora

Keep the following information in mind while searching for San Diego to Aurora flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$69
(Frontier)

One-way from

$46
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$163
Provider with most accurate pricing for San Diego-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Denver Intl flights.
Search Deals
From San Diego to Aurora
Search Deals
One-way flight from San Diego to Aurora
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Aurora that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from San Diego to Aurora that are best for you.

Fly from

San Diego

Fly to

Aurora

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 12/29

8:14 pm-11:59 pm

Nonstop2h 45m

Denver Intl

Tue 1/6

12:47 pm-2:40 pm

Nonstop2h 53m

$117

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 11/18

8:15 am-11:34 am

Nonstop2h 19m

Denver Intl

Sun 11/23

6:00 am-7:34 am

Nonstop2h 34m

$117

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 12/31

6:30 am-12:10 pm

1 stop4h 40m

Denver Intl

Sun 1/4

6:35 am-8:10 am

Nonstop2h 35m

$122

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 12/29

8:50 pm-12:15 am

Nonstop2h 25m

Denver Intl

Fri 1/2

3:35 pm-6:55 pm

1 stop4h 20m

$122

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 2/5

1:00 pm-6:40 pm

1 stop4h 40m

Denver Intl

Sun 2/8

6:00 pm-7:40 pm

Nonstop2h 40m

$122

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 1/2

7:40 pm-12:35 am

1 stop3h 55m

Denver Intl

Mon 1/5

5:40 am-7:15 am

Nonstop2h 35m

$122

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 11/20

4:00 pm-9:35 pm

1 stop4h 35m

Denver Intl

Sun 11/23

5:40 am-7:15 am

Nonstop2h 35m

$127

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sun 2/22

6:55 am-12:35 pm

1 stop4h 40m

Denver Intl

Thu 2/26

3:40 pm-5:10 pm

Nonstop2h 30m

$127

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 12/30

8:50 pm-12:15 am

Nonstop2h 25m

Denver Intl

Sun 1/4

5:40 am-9:00 am

1 stop4h 20m

$127

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 2/13

3:20 pm-6:40 pm

Nonstop2h 20m

Denver Intl

Thu 2/19

5:45 am-9:10 am

1 stop4h 25m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 23 results
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Best time to book a flight from San Diego to Aurora

Have a flexible travel schedule? Discover the best time to fly to Aurora from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Aurora

How far ahead should I book a flight from San Diego to Aurora?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Aurora. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Aurora, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Diego to Aurora?

Currently, January is the cheapest month in which you can book a flight from San Diego to Aurora (average of $24). Flying from San Diego to Aurora in October is currently the most expensive (average of $67). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to 9UR?

Find hourly flight availability from San Diego to Aurora. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

When flying from San Diego to Aurora, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 29% versus a flight at noon.

What is the cheapest day to fly from San Diego to Aurora?

Use this chart to determine the cheapest time to fly round-trip from San Diego to Aurora. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Diego to Aurora flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Aurora

Get insights into the airlines that provide service to Aurora. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Aurora. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from San Diego to Aurora, such as Alaska Airlines, Southwest, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,214 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,797 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Aurora. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Diego to Aurora?

    If you book a flight to Aurora from San Diego, you will be flying from San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 11 flights from San Diego to Aurora per day from 6 different airlines.

  • How popular is this San Diego to Aurora flight route?

    Flights from San Diego to Aurora have been viewed 205 times in the past calendar month.

  • How long is the flight from San Diego to Aurora?

    Alaska Airlines and Southwest can get you from San Diego to Aurora in just under 2h 45m. Your travel time can differ by up to 1h 55m. San Diego and Aurora are separated by a distance of 852 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from San Diego to Aurora one-way?

    $59 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on United Airlines and Southwest, with prices starting from $59 and $59, respectively.

  • What are the most reliable airlines from San Diego to Aurora?

    The top 3 most reliable airlines when flying from San Diego to Aurora are SWISS (93%), Alaska Airlines (91%) and Hawaiian Airlines (91%).

  • What are the cheapest flights from San Diego to Aurora?

    On average you can expect to pay $798 for a flight from San Diego to Aurora. The cheapest flight overall is $48 while the most popular route, (San Diego - Denver Intl) is currently priced at $54.

  • Can I find deals for flights from San Diego to Aurora that include hotel bookings?

    Yes. In addition to deals on San Diego to Aurora flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Aurora?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Aurora.

  • Can I find deals for business class flights from San Diego to Aurora?

    Yes. Cheapflights offers flight deals from San Diego to Aurora by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Aurora?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Aurora (average of $24). Flying from San Diego to Aurora in October is currently the most expensive (average of $67). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 6 airlines flying from San Diego to Aurora

Discover the top 6 airlines that operate flights from San Diego to Aurora. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$159FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$68Average$192FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$101Average$185FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$128Average$325FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$150Average$347FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$218Average$380FlexibilityNo cancel feeOn-time71%

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