DEN - SAN

$35 Find Cheap Flights from Denver to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to San Diego departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Diego, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Denver to San Diego (DEN-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular 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.
Discover the best prices for you by selecting your travel dates on KAYAK.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to San Diego

Tue, Sep 30 - Wed, Oct 1
Frontier Logo
8:50 pm - 10:24 pmDEN-SAN
2h 34mnonstop
Frontier Logo
7:15 am - 10:50 amSAN-DEN
2h 35mnonstop
$59Frontier
Find Deal
Thu, Oct 2 - Sat, Oct 4
Frontier Logo
10:29 pm - 11:53 pmDEN-SAN
2h 24mnonstop
Frontier Logo
7:15 am - 10:50 amSAN-DEN
2h 35mnonstop
$61Frontier
Find Deal
Mon, Sep 29 - Sat, Oct 4
Frontier Logo
9:38 am - 11:09 amDEN-SAN
2h 31mnonstop
Frontier Logo
7:15 am - 10:50 amSAN-DEN
2h 35mnonstop
$63Frontier
Find Deal
Tue, Sep 30 - Fri, Oct 3
Frontier Logo
8:50 pm - 10:24 pmDEN-SAN
2h 34mnonstop
Frontier Logo
10:20 am - 1:59 pmSAN-DEN
2h 39mnonstop
$64Frontier
Find Deal
Mon, Sep 29 - Thu, Oct 2
Frontier Logo
9:38 am - 11:09 amDEN-SAN
2h 31mnonstop
Frontier Logo
9:03 pm - 12:38 amSAN-DEN
2h 35mnonstop
$66Frontier
Find Deal
Mon, Sep 29 - Sun, Oct 5
Frontier Logo
9:38 am - 11:09 amDEN-SAN
2h 31mnonstop
Frontier Logo
6:35 am - 10:08 amSAN-DEN
2h 33mnonstop
$68Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
10:29 pm - 11:53 pmDEN-SAN
2h 24mnonstop
Frontier Logo
6:35 am - 10:08 amSAN-DEN
2h 33mnonstop
$69Frontier
Find Deal
Thu, Oct 9 - Sat, Oct 11
 Logo
10:29 pm - 11:50 pmDEN-SAN
2h 21mnonstop
 Logo
3:37 pm - 7:10 pmSAN-DEN
2h 33mnonstop
Tue, Sep 16 - Wed, Sep 24
Southwest Logo
7:00 pm - 8:25 pmDEN-SAN
2h 25mnonstop
Southwest Logo
6:30 am - 12:05 pmSAN-DEN
4h 35m1 stop
$123Southwest
Find Deal
Wed, Sep 17 - Sun, Sep 21
Southwest Logo
7:05 am - 8:30 amDEN-SAN
2h 25mnonstop
Southwest Logo
7:25 am - 10:50 amSAN-DEN
2h 25mnonstop
$127Southwest
Find Deal
Expert advice

Expert advice for your flight from Denver to San Diego

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget travelers.


Frontier's Premium Bundle offers extra legroom and priority boarding for just $20 more.

Read more about Frontierby Stefanie Waldek
United Airlines

United's Economy Plus seats offer up to six inches more legroom, enhancing comfort.


United offers free messaging on most flights, with Wi-Fi available for purchase.

Airports
DEN

Use the West Security Checkpoint at DEN for faster screening, allowing liquids and laptops to stay in bags. Reserve a slot online for expedited access.

Read more about DENby Harriet Baskas
SAN

Take the Route 992 bus from SAN to Downtown San Diego for a budget-friendly option. It runs every 15 minutes and connects to other transport.

Read more about SANby Brandon Schultz
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Booking Insights

KAYAK's insights & trends for Denver to San Diego flights

Get data-powered insights and trends into flights from Denver to San Diego to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to San Diego
Find cheap flights to San Diego

Planning a trip from Denver to San Diego? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

The average price of all round-trip flights from Denver to San Diego clicked on KAYAK for each day over the last 12 months.

When flying from Denver to San Diego, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Denver to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to San Diego is October, where tickets cost $159 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $232 and $227 respectively.

Can I save money by flying with a layover from Denver to San Diego?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $437 on average.

How far in advance should I book a flight from Denver to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to San Diego, you should book around 2 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$35
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Denver to San Diego

When to book flights from Denver to San Diego

Are your dates flexible? Find out the best times to travel from Denver to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to San Diego

  • Does San Diego International Airport have lactation rooms?

    You can use three lactation rooms located post-security at Terminal 1 West Rotunda, second level, near the elevator. There’s also a room at Terminal 1 East Rotunda on the ground level after the security checkpoint. In Terminal 2, the lactation room is on the second level close to Gate 34-35. The rooms are fitted with a hand washing station, comfortable seating, artwork, electrical outlets, soft lighting, and a children’s seat.

  • Are there nonstop flights from Denver to San Diego?

    Different airlines, including United Airlines and Frontier, fly nonstop from Denver International Airport to San Diego International Airport. Frontier also flies through the McCarran International Airport (LAS), but the flight could take longer. Book through KAYAK for details on different flights if you want to find the shortest route.

  • Can I travel with my pet through Denver International Airport?

    Yes, the Denver International Airport allows pets. To help you manage your pet, the airport offers a pet relief area in each concourse. There’s also one at the Jeppesen Terminal. The relief rooms are located post-security in the cores of A, B, and C Gates. All pet relief rooms have artificial turf flooring and a drainage system. There are disposal containers and bags.

  • Does San Diego International Airport offer services for disabled passengers?

    Travelers who need special assistance can contact their airlines prior to the trip to request assistance. At the San Diego International Airport, all terminals are wheelchair accessible. You can find an accessible shuttle, and if you need help, there are telephones at the airport’s reservation boards.

  • Is there complimentary Wi-Fi at San Diego International Airport?

    Wi-Fi at the San Diego International Airport is available in 2h sessions. If you want to connect quickly, enable your device's wireless connection and search for #SANfreewifi, then connect. To use the service longer, you just need to log back in when the session expires.

  • Where can I park at Denver International Airport (DEN)?

    Denver Airport (DEN) offers several options for parking. The Garage East Parking and Garage West Parking garages are located on either side of the main terminal. Next to these garages you’ll find the Economy East and Economy West parking lots, which are connected to the main terminal by pedestrian walkways and the airport’s free shuttle service. Two satellite shuttle lots (Mt. Elbert and Pikes Peak) offer a very low parking rate and free shuttle service to the airport. You should allow at least 30 minutes to reach the terminal from these lots.

  • Can I take the commuter train to Denver International Airport (DEN)?

    Yes, Denver’s A Line commuter rail service runs between Denver Union Station in Downtown Denver to the airport. The trip takes just under 40min, and you’ll arrive at the airport’s train station in the DEN Transit Center, which is a short walk from the terminal.

  • Can I stay at an on-site hotel before my early-morning departure from Denver Airport (DEN)?

    Yes, the Westin Denver International Airport is DEN’s only on-site hotel. It is located above the Transit Center, making for an easy walk to the Jeppesen Terminal. Hotel amenities include valet parking and a cocktail bar that serves snacks and light meals.

  • What lounges are available at Denver International Airport (DEN)?

    There are six airline lounges at Denver International Airport. The American Airlines Admirals Club, British Airways Executive Club, and Delta Sky Club are all located in the Gate A concourse, and United has three lounges (Club East, Club West, and Club Fly) in the Gate B concourse. In addition to the airline lounges, select American Express cardholders can relax in the Centurion Lounge in the Gate C concourse while US service members and their families can enjoy some time before their flight at the USO Denver, located just over the bridge to Gate A from the main terminal.

  • Where is the car rental center at San Diego Airport (SAN)?

    At San Diego International Airport (SAN), all of the car rental counters are located off-site in the Consolidated Rental Car Center. This center is connected to the airport by the free shuttle bus service. The rental car lot is next to the Rental Car Center.

  • Can I take a bus into the city from San Diego International Airport (SAN)?

    Yes, the #992 buses of San Diego’s Metropolitan Transit System pick up passengers at both of SAN’s terminals and make regular trips to Broadway and State Street in Downtown San Diego. The trip downtown takes less than 20min.

  • What is the cheapest flight from Denver to San Diego?

    In the last 3 days, the lowest price for a flight from Denver to San Diego was $35 for a one-way ticket and $59 for a round-trip.

  • Do I need a passport to fly between Denver and San Diego?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Denver to San Diego?

    Denver and San Diego are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at San Diego.

  • Which airlines offer Wi-Fi service onboard planes from Denver to San Diego?

    Alaska Airlines, Hawaiian Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Denver to San Diego flight route.

  • Which aircraft models fly most regularly from Denver to San Diego?

    The Airbus A321neo is the aircraft model that flies most regularly on the Denver to San Diego flight route.

  • Which airline alliances offer flights from Denver to San Diego?

    Star Alliance is the only airline alliance operating flights between Denver and San Diego.

  • On which days can I fly direct from Denver to San Diego?

    There are nonstop flights from Denver to San Diego on a daily basis.

  • Which is the best airline for flights from Denver to San Diego, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to San Diego are Southwest and Alaska Airlines. With an average price for the route of $267 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $199 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Denver to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Denver with another airline. Booking your flights between Denver and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to San Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for $98 or less one-way and $148 or less round-trip.
  • If you’re in the Front Range Urban Corridor or metropolitan Denver, you can use the Denver International Airport (DEN) to fly to San Diego, California.
  • At Denver International Airport, you can visit several restaurants, including Chick-fil-A at the B Gates Center Core, Ben & Jerry’s Ice Cream at A Gates Center Core, and Dazbog Coffee at C Gates near C47.
  • You can use free Wi-Fi at Denver International Airport. To connect, enable your wireless and locate “DEN Airport Free WiFi.”
  • There’s an Interfaith Chapel and Prayer Hall at the Denver International Airport in the Jeppesen Terminal, Level 6. It’s open 24h a day. You can join a Catholic Mass on Sundays at 1pm.
  • Fights from the Denver International Airport to San Diego land at the San Diego International Airport (SAN), which offers access to downtown San Diego and nearby areas.
  • For quick snacks, the San Diego International Airport offers vending machines located at Terminal 1 in the parking lot under the pedestrian bridge. Others are in Terminal 2 at the Parking Plaza in the lower level near the elevator cores.
  • For shoeshine services at San Diego International Airport, you can access the service at Terminal 2 East near Gate 23 or Terminal 2 West at the North Concourse. The shoeshine service is also available at Terminal 1 above the rotunda escalator.
  • Passengers can use luggage carts provided by Smarte Carte, which cost about $5 per cart. If you’re arriving in the International Arrivals area, the carts are free.
  • Denver International Airport (DEN) is located about 25 miles northeast of Denver’s city center. It is the only international airport in the greater Denver area, and it’s a hub for Frontier Airlines, Southwest Airlines, and United Airlines.
  • Denver Airport (DEN) has one main terminal, the Jeppesen Terminal, plus three concourses, called Gates A, B, and C. Passengers can walk between the terminal and Gate A, but you must take the airport’s automated people-mover train to access Gates B and C.
  • Located less than 5 miles northwest of Downtown San Diego, San Diego International Airport (SAN) is a focus city for both Alaska Airlines and Southwest Airlines.

Prefer to fly direct from Denver to San Diego?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to San Diego.
Find which airlines fly direct from Denver Intl Airport to San Diego Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to San Diego

Monday

Air Canada, Copa Airlines, Frontier, +6 more

Air Canada, Copa Airlines, +7 more

Tuesday

Air Canada, Frontier, Lufthansa, +4 more

Air Canada, Frontier, +5 more

Wednesday

Air Canada, Frontier, Lufthansa, +6 more

Air Canada, Frontier, +7 more

Thursday

Air Canada, Copa Airlines, Frontier, +5 more

Air Canada, Copa Airlines, +6 more

Friday

Air Canada, Copa Airlines, Frontier, +6 more

Air Canada, Copa Airlines, +7 more

Saturday

Air Canada, Frontier, Lufthansa, +4 more

Air Canada, Frontier, +5 more

Sunday

Air Canada, Copa Airlines, Frontier, +5 more

Air Canada, Copa Airlines, +6 more

See more direct flights

Direct returns

San Diego to Denver Intl

Monday

Air Canada, Copa Airlines, Frontier, +6 more

Air Canada, Copa Airlines, +7 more

Tuesday

Air Canada, Frontier, Lufthansa, +4 more

Air Canada, Frontier, +5 more

Wednesday

Air Canada, Frontier, Lufthansa, +6 more

Air Canada, Frontier, +7 more

Thursday

Air Canada, Copa Airlines, Frontier, +5 more

Air Canada, Copa Airlines, +6 more

Friday

Air Canada, Copa Airlines, Frontier, +6 more

Air Canada, Copa Airlines, +7 more

Saturday

Air Canada, Frontier, Lufthansa, +4 more

Air Canada, Frontier, +5 more

Sunday

Air Canada, Copa Airlines, Frontier, +5 more

Air Canada, Copa Airlines, +6 more

See more direct flights

Reviews of the top 5 airlines serving from Denver to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Denver to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.5Crew
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
Airline reviews

Very pleasant , a flight attendant Jo did a great job mixing me up a beverage and just brightened the trip .

10.0 ExcellentAnonymous, Aug 2025ATL - SAN
Read more Alaska Airlines reviews

Very pleasant , a flight attendant Jo did a great job mixing me up a beverage and just brightened the trip .

Spent 30 minutes in tarmac bcoz arrived earlier and crew nit ready for us. Told that the airport is being renovated so limited arrival space. 6 hours flight should have not two snacks but one major meal.

Flight attendant was rude when I advised her that the bathroom had no paper towels or tissue paper.

Departing flight to San Diego was delayed. Return flight from SD to SBP was delayed. Not terrible but not ideal

Good leg room, no problem with overhead storage and the staff was super helpful.

I purchased the internet during the flight and it stopped working after 1 hour, so I barely got to use it.

Good experience, although it was a little cramped being a tall person. Otherwise everything went smoothly and professionally though

Big delay of over 7 hours on next leg of trip with Alaska. Would have been nice to have food or something

Horrible! No blanket or pillow available! We had bulkhead seats but the seats were worn out and no cushion old. No meal or even a sandwich for our 5 hour flight just a little bag of pretzels. Crabby attendant female with long brown hair. We will not book Alaska Airlines again

I do wish the the actual airplane I flew on was bigger. But, I made it work.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

I would have liked to arrive on time - not 5 hours late!

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

1.5 hour delay, poor service, no compassion from the crew. Terrible experience

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!

Alaskan has always been great. Unfortunately, going TO Cabo, on Hawaiian, was a nightmare. But Alaskan has always been great.

Departure was two hours late! Better than four hours late on our first flight

My experience was pleasant. It was perfect. That is enough🥰💃💖

The flight was supposed to leave at 7:30pm, but departed 10:50pm. They kept moving departure time out every half hour. It was a 45 minute flight from n Sunday night with great weather.

I could not check in ahead of time. Kayak did not give me a proper confirmation number to check in.

I loved flying Hawaiian Air! We didn’t pay to sit together, but we were able to anyway. They had usb charging ports and even outlets in some seats. They served a hot sandwich that was not very good, but we were still pleasantly surprised. The staff was very nice. The seats really made my booty hurt but maybe I’m just not used to sitting so long. Also, the AC was really cold even though I was wearing pants, a hoodie, and a light blanket.

You did not have any vegetarians options for the free meal! I do not eat any meat of any kind! I asked the flight attendant and was met with kind of a rude statement like vegetarian? No we don’t have that kind of thing! Did not make me happy but made me feel like why would I want a vegetarian meal! Otherwise a good experience!

I was put in a middle seat with the people on either side of me kept passing their grandchild over me and talking back and forth while I was trying to rest or watch a movie. So inconsiderate and totally disturbing. I asked if they would sit next to each other to alleviate the constant impeding my comfort but they refused.

Late boarding, full flight. Absolutely no food and barely a bag of pretzels. No video screens and slim pickings of movies. No live tv and poor selection of shows.

Pre-Flight check-in Staff did a terrific job correcting a seat mis-assignment problem after I checked in the night before my flight. They really stepped up to make my flight home a joy. It was also my birthday, so the flight crew made me feel special a little treat.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

Was a pain having to leave the plane and reboard but glad the plane was fixed

No food service almost missed because of first flight delays

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Very bad! No good service delayed my second connection flight

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

Everything went as planned. Crew was great. Seats were still not that comfortable.

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

Other airlines flying from Denver to San Diego

Flights from the other most popular airlines that fly from Denver to San Diego according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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