Question 1

How much does a flight from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) cost?

Accepted Answer

One-way flights typically cost between £73 and £451 and return flights often range between £73 and £451. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.

Question 2

What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

January is typically the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.), with average return fares of approximately £151. This is about 19% lower than the average price throughout the year. January sees lower prices because it falls after the holiday travel rush, when demand drops and airlines compete for bookings. Other cheap months to fly from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) include February and September.

Question 3

Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

Enter DEN to SAN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Question 4

How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

To find a cheap flight from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

Question 5

What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

The best airline to fly with from Denver, CO (DEN-Denver Intl.) (DEN) to San Diego, CA (SAN-San Diego Intl.) (SAN) will differ from traveller to traveller. If you like to fly early, WN offers early morning flights. If price is the most important factor, F9 typically offers the lowest fares. WN offers the most daily flights from Denver, CO (DEN-Denver Intl.) (DEN) to San Diego, CA (SAN-San Diego Intl.) (SAN), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

Question 6

What is the best time to fly from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

Based on booking data from the past year, the cheapest months to fly from Denver, CO (DEN-Denver Intl.) (DEN) to San Diego, CA (SAN-San Diego Intl.) (SAN) are typically January and February, with average return flights around £151. However, the most popular months for travel on this route are September and April, meaning you'll find plenty of flight options during those times. If you're looking for the best value, consider traveling in the quieter early months of the year.

Question 7

How many flights per day from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

When flying from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.), you'll find approximately 15 nonstop flights per day. For even more choice, look at flights that include layovers, as there are around 193 connecting flights per day. Some common connection points include Sky Harbor Intl. (PHX), McCarran Intl. (LAS), and Dallas-Fort Worth Intl. (DFW).

Question 8

What is the earliest flight from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

The earliest flight from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) typically departs at approximately 12:15 AM local time, operated by American Airlines. This is a seasonal service active in November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

Question 9

What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

You'll find the most flights from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) on a Friday, with around 123 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United Airlines, and Alaska Airlines. Friday and Thursday offer notably more flight options compared to other days of the week.

Question 10

What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) are in the early morning, between 6am and 9am. About 27% of passengers prefer this time window. Southwest Airlines and Alaska Airlines offer flights during this window. Many travellers find these early flights convenient as they allow you to arrive in San Diego with plenty of time to start your day.

Question 11

How long does it take to fly from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

Flying nonstop from DEN to SAN takes around 2 hours 30 minutes, with the route covering approximately 852 miles. Flights with a layover typically take 3 hours 30 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Question 12

Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

Select the "Business class" and "First class" filters when looking for DEN to SAN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

Question 13

How do I earn miles on a Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) flight with Expedia?

Accepted Answer

It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Question 14

What airports do you fly into for San Diego from Denver Intl. (DEN)?

Accepted Answer

If you're planning to travel to San Diego from Denver Intl. (DEN), you can fly directly into San Diego Intl. (SAN) Some flights may connect through major hubs like Tucson Intl. (TUS), Seattle - Tacoma Intl. (SEA), Albuquerque Intl. Sunport (ABQ) before reaching San Diego. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Question 15

Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) at the last minute?

Accepted Answer

Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Question 16

Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) flight and hotel package?

Accepted Answer

Securing a Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

Question 17

Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.)?

Accepted Answer

If you booked your Denver, CO (DEN-Denver Intl.) to San Diego, CA (SAN-San Diego Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Origin airport	Denver Intl.
Destination airport	San Diego Intl.
Airlines serving	Alaska Airlines, American Airlines, Delta, JetBlue Airways, United
Return price	£114
Distance	1363 km
Average flight time	1 hour 27 mins

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