SJC - DEN

$54 Find Cheap Flights from San Jose to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to Denver departing on 3/9. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Denver, 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 San Jose to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$172
Overall average: $281
Multiple Airlines
Mon 3/16Mon 3/23
SJC - DEN • 1 stop
Cheapest non-stop
$337
Typical prices: $160-$414
Southwest
Wed 3/4Tue 3/10
SJC - DEN • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Economy Bundle includes carry-on and seat choice.
Southwest offers two free checked bags for family travel.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Denver
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Top airlines
Frontier
Cheapest • from $173 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 29% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
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Flight Deals

Cheap Flights from San Jose to Denver (SJC-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to Denver 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.

Recent round-trip flight deals from San Jose to Denver

Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
7:42 pm - 9:01 am
SJC
-
DEN
12h 19m
1 stop
Multiple Airlines Logo
6:00 am - 6:47 pm
DEN
-
SJC
13h 47m
2 stops
$172Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
9:35 am - 3:56 am
SJC
-
DEN
17h 21m
1 stop
Frontier Logo
9:00 am - 7:25 pm
DEN
-
SJC
11h 25m
1 stop
$173Frontier
Wed, Mar 4 - Tue, Mar 10
Alaska Airlines Logo
12:45 pm - 11:59 pm
SJC
-
DEN
10h 14m
1 stop
Alaska Airlines Logo
7:40 am - 12:08 pm
DEN
-
SJC
5h 28m
1 stop
$177Alaska Airlines
Thu, Apr 30 - Mon, May 4
Frontier Logo
6:57 pm - 12:19 am
SJC
-
DEN
4h 22m
1 stop
Frontier Logo
6:00 am - 6:02 pm
DEN
-
SJC
13h 02m
1 stop
$180Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
6:57 pm - 3:59 am
SJC
-
DEN
8h 02m
1 stop
Frontier Logo
2:30 pm - 6:02 pm
DEN
-
SJC
4h 32m
1 stop
$181Frontier
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
6:39 pm - 9:44 am
SJC
-
DEN
14h 05m
1 stop
Frontier Logo
9:00 am - 7:25 pm
DEN
-
SJC
11h 25m
1 stop
$182Frontier
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
9:35 am - 3:56 am
SJC
-
DEN
17h 21m
1 stop
Multiple Airlines Logo
6:45 pm - 9:47 am
DEN
-
SJC
16h 02m
1 stop
$187Multiple Airlines
Fri, Mar 6 - Mon, Mar 9
Frontier Logo
7:02 pm - 9:44 am
SJC
-
DEN
13h 42m
1 stop
Frontier Logo
9:00 am - 7:25 pm
DEN
-
SJC
11h 25m
1 stop
$192Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
6:57 pm - 8:01 pm
SJC
-
DEN
24h 04m
1 stop
Frontier Logo
10:29 pm - 7:25 pm
DEN
-
SJC
21h 56m
1 stop
$194Frontier
Sun, Apr 19 - Mon, Apr 27
Frontier Logo
8:20 pm - 3:59 am
SJC
-
DEN
6h 39m
1 stop
Frontier Logo
10:01 am - 6:02 pm
DEN
-
SJC
9h 01m
1 stop
$195Frontier
Booking Insights

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

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

Find cheap flights to Denver
Find cheap flights to Denver

Planning a trip from San Jose to Denver? 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 San Jose to Denver?

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

If you are looking for a flight deal from San Jose to Denver, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Denver, Thursday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to Denver, 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 San Jose to Denver is September, where tickets cost $210 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $386 and $377 respectively.

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

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 $438 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Jose to Denver, 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 San Jose to Denver, you should book around 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from San Jose to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Harriet Baskas

Expert on DEN

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.

Bill Fink

Bill Fink

Expert on SJC

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Good to know

Low seasonNovember
Cheapest flight$54
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 19% increase in price.
Flight from San Jose to Denver

When to book flights from San Jose to Denver

Are your dates flexible? Find out the best times to travel from San Jose to Denver 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 San Jose to Denver

  • What different types of flights are offered between San Jose and Denver?

    It is typically possible to find direct daily flights from San Jose and Denver, with these trips being frequently serviced by companies such as United Airlines. You can also find flights that require one layover, and this connection may occur in Las Vegas or Oakland. These flights are often serviced by Frontier and Spirit Airlines.

  • What are my options for traveling from downtown San Jose to Norman Y. Mineta San Jose International Airport?

    If you choose to drive from San Jose to Norman Y. Mineta San Jose International Airport, you can expect the trip to take anywhere from 10 to 15min as long as there is not any additional traffic. Otherwise, you can opt for public transportation, including local bus line 22. This bus will bring you to the airport in approximately 1h 15min in total.

  • How can I go from Denver International Airport to the city center?

    One of the easiest ways to go from Denver International Airport to Denver is by driving, which will normally take you around 25 to 30min depending on traffic and weather conditions. Otherwise, you can opt for public transportation, like bus line 15, which will bring you to the city center in just over 1h.

  • Is it possible to rent a car from Denver International Airport?

    Denver International Airport has its own car rental center in the Jeppesen Terminal. There is a free shuttle bus that can bring you there from other terminals. You will find offices for several companies, including Alamo, Dollar, and National.

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

    In the last 3 days, the lowest price for a flight from San Jose to Denver was $54 for a one-way ticket and $172 for a round-trip.

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

    No

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

    All the following airlines offer inflight Wi-Fi service on the San Jose to Denver flight route: JetBlue, Delta, Alaska Airlines, Lufthansa, United Airlines, and American Airlines.

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Jose to Denver flight route.

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

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Jose and Denver, with oneworld being the most commonly used for this route.

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

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

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

    The two airlines most popular with KAYAK users for flights from San Jose to Denver are Southwest and Alaska Airlines. With an average price for the route of $363 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 $326 and an overall rating of 8.0.

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

    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 San Jose to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from San Jose 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 San Jose to Denver?

    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 Denver with an airline and back to San Jose with another airline. Booking your flights between San Jose and DEN 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 San Jose to Denver?

    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 Denver from San Jose 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 San Jose to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $195 or less one-way and $382 or less round-trip.
  • Norman Y. Mineta San Jose International Airport (SJC) is known for being one of the primary focus cities for Alaska Airlines. Because of this, you will find that many of the flights that depart from and arrive at this travel hub are serviced by this airline.
  • Once you have landed at Denver International Airport (DEN), you may want to use one of the nursing rooms that are available if you are traveling with a small child. In these nursing rooms, you will find sinks, outlets, and comfortable seating.
  • To pass the time before the boarding process for your flight from Norman Y. Mineta San Jose International Airport, you can always relax in one of the available lounges. The Club at SJC has two locations in Terminal A and each of them is open to travelers flying with all airlines.
  • Those traveling with pets will be happy to know that there are several pet relief areas at Denver International Airport, including indoor pet relief rooms in Terminals A, B, and C. Each of these rooms is equipped with artificial turf, hand soap, a wall-mounted sink, and a drainage system.
  • If your flight from Norman Y. Mineta San Jose International Airport departs quite early in the morning, you may want to book a hotel room that is near the airport. There are a few choices that are less than a 5min drive away and offer a free shuttle service, such as the Sonesta Select San Jose Airport and Springhill Suites by Marriott San Jose Airport.

Prefer to fly direct from San Jose to Denver?

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

Direct departures

San Jose to Denver Intl

Monday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Tuesday

Southwest, United Airlines

Southwest, United Airlines

Wednesday

Southwest, United Airlines

Southwest, United Airlines

Thursday

Southwest, United Airlines

Southwest, United Airlines

Friday

Southwest, United Airlines

Southwest, United Airlines

Saturday

Southwest, United Airlines

Southwest, United Airlines

Sunday

Southwest, United Airlines

Southwest, United Airlines

See more direct flights

Direct returns

Denver Intl to San Jose

Monday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Tuesday

Southwest, United Airlines

Southwest, United Airlines

Wednesday

Southwest, United Airlines

Southwest, United Airlines

Thursday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Friday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Saturday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Sunday

Southwest, United Airlines

Southwest, United Airlines

See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from San Jose to Denver. 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 San Jose to Denver? 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 11825 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

2.0 MediocreAnonymous, Jan 2026
STS - SAN
Read more Alaska Airlines reviews

Due to plane delays on both legs of my flight home, I had to be rerouted from Santa Rosa to Las Vegas on Skywest and then to DCA on American. SkyWest airlines sat on runway in Las Vegas for 20 minutes waiting for gate to clear. My boarding pass for American that I was given by Alaska was incomplete and the Las Vegas airport lacked signage and departure boards. I barely made my flight bc it was so confusing. American Airlines has a much better wireless connection. I’ll never fly Alaska again. It clearly has problems.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

The stewardess are very nice and pleasant, Someone onboard had a medical attention, and they attended that person non-stop all throughout the flight, and yet, did not forget to serve and help other passengers.

Worst first/business class I have ever flown after 75 years on planes. Barely acceptable seats, terrible food, uninterested attendants, unavailable WiFi. I’ll never fly this airline again.

The bathroom trash container under the sink fell out and was like that long before my flight. The plane smelled of canned fish and floor was Deteriorating

My TSA pre check was left Off my boarding pass which was a large inconvenience.

Again, very smooth and all of the Alaska folks were great. They continue to meet all my needs.

Overall it was fine, however one of my two checked bags did not arrive and I was told it was left in Palm Springs. I don't understand how one of the two bags made it through fine but the other got lost .

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

It wasn’t great. Your app is not user friendly unless you sign up for those points. It tries to force you and won’t show you flight/trip info until you sign up. You have to somehow get into get your boarding pass because your kiosks don’t offer boarding pass information only bag check. It was not helpful or user friendly. The app is useless unless you sign up for your rewards program. My daughters info was missing even though I checked us in we had to get out of security and go back to a ticket window the woman told us that it sometimes populates incorrectly so it didn’t have her information. It populated incorrect birth date. She said this is common. Luckily we were at Palm Springs and not JFK where leaving the giant security line would have been a much bigger problem. I will avoid your airline in the future if it’s possible. Also no food availability except dry snack boxes.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

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

Other airlines flying from San Jose to Denver

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