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PHL - DEN

Find cheap flights from Philadelphia to Denver from $68

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Denver departing on 5/18. 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
0 bags
Thu 5/16
Thu 5/23

Search 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 Philadelphia to Denver.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Denver.
In the last 7 days travelers have searched 43,990,755 times on KAYAK, and here is why:

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Cheap flight deals from Philadelphia to Denver (PHL-DEN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia 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 and deals for you by selecting your travel dates.
Choose your dates
8:40 pm - 11:06 pmPHL-DEN
4h 26mnonstop
1:11 pm - 8:29 pmDEN-PHL
5h 18m1 stop
$114Frontier
Find Deal
Wed, Apr 24 - Sat, Apr 27
11:12 am - 4:48 pmPHL-DEN
7h 36m1 stop
1:11 pm - 8:29 pmDEN-PHL
5h 18m1 stop
$115Frontier
Find Deal
Wed, Apr 24 - Sat, May 4
8:50 pm - 11:05 pmPHL-DEN
4h 15mnonstop
6:02 am - 11:34 amDEN-PHL
3h 32mnonstop
$139American Airlines
Find Deal
Fri, May 3 - Wed, May 8
12:05 pm - 5:10 pmPHL-DEN
7h 05m1 stop
9:55 am - 10:51 amDEN-PHL
22h 56m1 stop
$145Sun Country Air
Find Deal
Sat, May 25 - Tue, May 28
8:50 pm - 11:05 pmPHL-DEN
4h 15mnonstop
2:11 pm - 7:44 pmDEN-PHL
3h 33mnonstop
$166American Airlines
Find Deal
Wed, Apr 24 - Mon, Apr 29
12:35 pm - 5:25 pmPHL-DEN
6h 50m1 stop
4:55 pm - 10:38 amDEN-PHL
15h 43m1 stop
$211Sun Country Air
Find Deal
Thu, May 30 - Tue, Jun 4
11:30 am - 5:05 pmPHL-DEN
7h 35m1 stop
6:10 pm - 6:00 amDEN-PHL
9h 50m1 stop
$216Delta
Find Deal
Thu, May 30 - Mon, Jun 3
6:00 am - 10:59 amPHL-DEN
6h 59m1 stop
4:41 pm - 12:37 amDEN-PHL
5h 56m1 stop
$222Delta
Find Deal
Wed, Jun 12 - Tue, Jun 18
7:05 am - 9:21 amPHL-DEN
4h 16mnonstop
11:59 pm - 5:35 amDEN-PHL
3h 36mnonstop
$226United Airlines
Find Deal
Fri, May 10 - Sun, May 12
7:05 am - 9:21 amPHL-DEN
4h 16mnonstop
11:59 pm - 5:35 amDEN-PHL
3h 36mnonstop
$241United Airlines
Find Deal
Wed, May 8 - Fri, May 10

Flights from Philadelphia to Denver - Travel Insights & Trends

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

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

The average price of all flights from Philadelphia to Denver clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Philadelphia to Denver, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Denver, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Philadelphia to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Philadelphia 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 Philadelphia to Denver is January, where tickets cost $222 on average. On the other hand, the most expensive months are June and May, where the average cost of tickets is $352 and $338 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Philadelphia to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Philadelphia to Denver, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 23 days before departure.

Which airlines provide the cheapest flights from Philadelphia to Denver?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Frontier ($68) and JetBlue ($103). The cheapest round-trip tickets were found on Frontier ($114) and American Airlines ($139).

Which airlines fly non-stop between Philadelphia and Denver?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Philadelphia to Denver.
There are 4 airlines that fly nonstop from Philadelphia to Denver. They are: American Airlines, Frontier, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $87 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Philadelphia and Denver per day?

Each day, there are between 10 and 12 nonstop flights that take off from Philadelphia and land in Denver, with an average flight time of 4h 15m. The most common departure time is 10:00 am and most flights take off in the morning. Each week, there are 80 flights. The most frequent day of departure is Thursday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Philadelphia and Denver?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Philadelphia to Denver take?

A direct flight to Denver will take on average 4h 12m to travel the 1,553 miles flying distance from Philadelphia.

What’s the earliest departure time from Philadelphia to Denver?

Early birds can take the earliest flight from Philadelphia at 5:30 am and will be landing in Denver at 7:45 am.

What’s the latest departure time from Philadelphia to Denver?

If you prefer to fly at night, the latest flight from Philadelphia to Denver jets off at 8:50 pm and lands at 11:05 pm.

Good to know

Low season

November

High season

August

Cheapest flight

$68
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Philadelphia to Denver

When to book flights from Philadelphia to Denver

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

  • What are the public transportation options to Philadelphia International Airport?

    If you want to travel to PHL using public transport, you can board a Southeastern Pennsylvania Transportation (SEPTA) train, SEPTA bus, or a taxi. Airport Regional Line trains and buses are recommended for budget travelers. Between the two, trains are better since they’re just as cheap but quicker. Taxis are recommended for travelers not near the train/bus boarding stations, those with lots of luggage, and those in a rush.

  • Can I leave my car at Philadelphia International Airport for the duration of my trip?

    If you arrive at PHL with your car, you can leave it in the Economy Parking Lot till you return. This lot, connected to the terminal via shuttle buses that operate 24 hours every day, has limited availability. Hence, pre-booking your slot is advised.

  • Does Denver International Airport have nursing rooms?

    DEN has several comfortable, private spaces for traveling mothers to nurse their children. There are three nursing rooms situated post-security at the center of all of the airport’s concourses, one in the center of Jeppesen Terminal on Level 5 near Arrivals, and one on the east side of Concourse B.

  • Can I rent a car at Denver International Airport?

    You can rent a car at DEN since the airport has on-site locations for more than 10 car rental companies, including Avis, Budget, Enterprise, Payless, Sixt, National, and Hertz. Each agency provides a shuttle to its location from Jeppesen Terminal. The shuttles pick up and drop off clients on Level 5, Island 4.

  • How can I travel sustainably from Philadelphia to Denver?

    To travel from PHL to DEN sustainably, travel with JetBlue or United Airlines. These airlines have better fuel conservation practices, carbon offset and recycling programs, and green building designs than the other airlines serving this route.

  • Where can I pray at Denver International Airport?

    At DEN, you can pray privately and in a quiet environment. This is because the airport has an Interfaith Chapel as well as an Islamic Prayer Room on the East Side of the Jeppesen Terminal. They're open around the clock.

  • Which good hotels are near Denver International Airport?

    The Hampton Inn is a 25-minute drive from the popular Denver Botanical Gardens and a 15-minute drive from Denver International Airport. The Embassy Suites by Hilton is a 20-minute drive from the Museum of Nature and Science and a 12-minute drive from the airport.

  • What dining options are available at Denver International Airport?

    If you would like to grab a bite to eat once your flight has landed at Denver International Airport, there are many options that you can choose from. The Boulder Beer Tap House is an American-style restaurant found in the Jeppesen Terminal, while the Cantina Grill has a Mexican-inspired menu and is located near the B Gates. Caribou Coffee is near the A Gates and is a good choice for anyone interested in grabbing a to-go pastry or sandwich.

  • What shopping options are available at Philadelphia International Airport?

    If you would like to purchase a gift for yourself or a loved one, consider going to one of the several shops in Philadelphia International Airport. B-Iconic is located in Terminals D and E and offers a variety of women’s clothing and accessories, while Pennsylvania Market sells souvenirs from the local region.

  • Does Philadelphia International Airport have any amenities for children?

    In addition to several Nursing Mother’s Stations that can be used for increments of 30 minutes, Philadelphia International Airport provides travelers with access to the “Ready For Take-Off” aviation-themed play area. It contains a variety of climbing equipment and toys, making it a popular place for kids to pass the time before boarding their flight.

  • What is the cheapest flight from Philadelphia to Denver?

    In the last 3 days, the lowest price for a flight from Philadelphia to Denver was $68 for a one-way ticket and $114 for a round-trip.

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

    No

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

    American Airlines, Delta, Alaska Airlines, and JetBlue offer inflight Wi-Fi service on the Philadelphia to Denver flight route.

  • Which aircraft models fly most regularly from Philadelphia to Denver?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Philadelphia to Denver flight route.

  • Which airline alliances offer flights from Philadelphia to Denver?

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

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

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

  • Which is the best airline for flights from Philadelphia to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Denver are Delta and United Airlines. With an average price for the route of $326 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $408 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Philadelphia 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 Philadelphia to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Philadelphia 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 Philadelphia 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 Philadelphia with another airline. Booking your flights between Philadelphia 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 Philadelphia 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 Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from PHL to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $122 or less one-way and $200 or less round-trip.
  • Philadelphia International Airport (PHL) is the primary airport serving the Delaware Valley. It is a hub for American Airlines and a focus city for Frontier Airlines. Denver International Airport (DEN) is the primary airport for the Denver metropolitan area and Front Range Urban Corridor. This airport is a hub for Frontier, United, and Southern Airways Express, and a focus city for Southwest.
  • While waiting for your flight to DEN, you can relax at PHL’s United Club between Concourse C and D; Delta Sky Club near the Terminal D/E Connector; or American Airlines Admirals Club below Gate A6 in Concourse A East, between Gates A15 and A16 in Concourse A West, between Concourses B and C, and above the food court in Concourse F. These lounges often accept travelers journeying with their affiliate airlines only. However, when space is available, they accept paid-entry guests as well.
  • Suppose you need some assistance at PHL. In that case, look for an information desk on the Airside, Landside, and in the East wing of Terminal A, Airside of Terminal B, or Landside of Terminal E. Information desks at this airport are operational round-the-clock. They’re manned by easy-going, knowledgeable airport staff who are always ready to help.
  • Hoping to make your travel experience as quick and easy as possible? If so, make sure to look for direct flights from Philadelphia to Denver. Frontier and American Airlines are good companies for those traveling on a budget, while United and Southwest provide free snacks and drinks.
  • To receive some pampering before your flight from Philadelphia to Denver takes off, head to one of the XpresSpa locations in Terminals C, D, and F of Philadelphia International Airport. Offering services such as manicures, pedicures, massages, facials, and waxing, these beauty salons are the ideal place to unwind before beginning your travels.
  • For those traveling with a furry friend or service animal, don’t forget to bring them to a pet relief area once you have landed at Denver International Airport. There are several relief zones located in Terminals A, B, and C, as well as a large fenced-in area near Jeppesen Terminal.
  • If you have some time to pass before your flight begins boarding, access Philadelphia International Airport’s free digital library via their WiFi connection. This library allows travelers to download a variety of digital content at no charge, including books, magazines, and even podcasts.
  • It is important to keep in mind that smoking is not currently allowed anywhere inside the buildings of Denver International Airport. If you need a cigarette, you will instead have to wait until you have left security, and find a designated smoking area located outside of the primary Arrivals terminal.
See more tips

Prefer to fly non-stop from Philadelphia to Denver?

Find which airlines fly direct from Philadelphia to Denver Intl, which days they fly and book direct flights.

Nonstop departures

Philadelphia to Denver Intl

Monday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Tuesday

Air Canada, American Airlines, British Airways, +4 more

Air Canada, American Airlines, +5 more

Wednesday

Air Canada, American Airlines, British Airways, +4 more

Air Canada, American Airlines, +5 more

Thursday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Friday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Saturday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Sunday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

See more direct flights

Nonstop returns

Denver Intl to Philadelphia

Monday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Thursday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Friday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Saturday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

Sunday

Aer Lingus, Air Canada, American Airlines, +5 more

Aer Lingus, Air Canada, +6 more

See more direct flights
See more direct flights

Top 5 airlines serving from Philadelphia to Denver

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia 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 Philadelphia 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
DeltaOverall score based on 11123 reviews
7.9comfort
8.0entertainment
7.5food
8.6crew
8.2boarding
Airline reviews

It was a crowded flight. They did the best they could.

6.0 GoodNetty, Apr 2024SYR - JFK
Read more about Delta reviews

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

Seats in first class on the E175 recline too far back. I was in 2A, and the man in 1A fully reclined almost the entire flight. It took 6-7 inches of space away from me and made it very difficult to work on my laptop.

On 2 different flights the wifi was horrible and there was no drink or snack service.

Wifi wasn’t working well so we couldn't view any media.

Flight was late. Club was full. Experience is exactly what I expected.

The net issue I had was with the gate agent. We had added a carryon to our boarding pass when we checked bags. When I got to the boarding gate the agent was rude asking why I had a backpack - I said I added it - even had an orange tag on it. She ripped my tag off and swung her monitor around to show me how she was right- saying it isn’t wasn’t listed - only a checked bag. I explained again that I wasn’t sure what the issue was but I wouldn’t have an orange tag if I hadn’t added it. Then she finally checked my husband’s boarding pass and found that the agent at checkin had added my carryon to his boarding pass instead of mine. She sent me on my way without my orange tag. Was a bit embarrassing for me the tone she used with me assuming I was trying to get away with something.

Gate agent asked if I could switch seats so a family could sit together. Agent moved me to a seat in the front of the plane, no charge. It was easy. The agent did a great job.

Great seat space. However food and drink prices outrageous. Jabbing to pay for a carry on bag or stuck paying at the gate too much.

Every Allegiant Air flight I've ever taken has been delayed. This flight was delayed a full 2 hours. It was excuse after excuse after excuse. It was a flight from southern Florida. They made us board the plane on time, but made us wait for 2 hours on the tarmac. Because the engines were kept shut off, so was the air conditioning. One can only imagine how hot the air was in the cabin over those 2 hours on the tarmac, while in the hot Florida sun. Just terrible.

Actually, for the price, I'm willing to put up with a little discomfort (upright chairs) and at times inconveniences (like any airline), lack of entertainment (I can bring my own). My flight was non stop and smooth. I would fly this route again.

The flight was delayed 6 hours and we were only offered an $8 food credit. My husband stood in line to get the credit for 45 minutes and when he got close to the end of the line the computers went down.

Worst ever! Flight cancelled supposedly for weather even though we k ow of many others who flew into Bangor same time no problem. At the airport there was no customer service at all just refund and no possibility of rebook for 3-4 days. Aweful won’t fly with them again!!

It’s a budget airline so adjust expectations accordingly. Nothing is without a fee but such is necessary for tickets to remain so affordable.

No complaints. It’s a budget airline so can’t expect any frills.

My TSA number was missing from my ticket which shouldn’t have happened since it’s in my file. The on board flight attendant who was a male, did not want to help me put my luggage in the overhead bin and made a very rude comment and was very unpleasant. The good… the woman who fixed my ticket with the TSA number was excellent and I had extra legroom which was perfect.

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

By in large it was a good experience. The flight crew was great and that's the most important to me. Boarding was fine.

It was fine. Everything ran on time, crew was great.

Staff friendly and app worked really well. Modest delays were frustrating

Because I can’t stand very long in one place, I was allowed to reword.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Flight from PHL to PHX arrived 50 minutes early and a gate was available. First class flight attendant Stephanie was very friendly and polite. Sanitizing wipes should be provided with meals in addition to refresher towels.

flight delayed so missed connection and this had to rebook for next day

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Flight departed PHL one hour late due to late arrival of aircraft. On board services were okay. First class menu does not offer any new items; same desserts (cheese & crackers or Mango sorbet). At least there were no credit card promotions during the flight.

After sitting on plane for 7+ hours, flight was canceled. And to makes matters worse, my suitcase is in baggage hell!

Terrible Ticketing and Check in process. I learned that AA unilaterally cancelled my premium seating from PHL to CLT and from CLT to JAN. They did, however, refund my money, but my seating was subsequently severely downgraded. They didn’t have a seat for my unless I paid for it! Not cool! Consequently, Check-in took 45 min. AA is usually great, but this was my worst experience with AA ever. Appalling they they arbitrarily cancel my seats threatening loss of flight if I didn’t pay for a seat!!!! -John

We liked quick boarding and on time departure. Seats were very uncomfortable.

Terrible. Seats are bad and the baggage policy is inconsistent

Everything was good, and most importantly on time. They have been extremely tardy in some of my flights

They lost my baggage on my connection flight, it’s been 24 hours since I put my claim in and still no update on my bags.

It’s a cheap airline. I wish they had better seats.

The only issues had were outside of Frontier’s control or weren’t expected. It was a two hour flight they completed fast. We landed almost an hour ahead of schedule. The issues with no entertainment or food weren’t issues since there was no expectations. The issue of the loud or crying babies was outside of frontiers control.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

Smooth process and flight. My favorite kind. Uneventful and on-time!

Xmas Day- Flights were on time for departure and arrival, baggage check in and boarding process were hassle free, baggage also arrived without any delay. Satisfied customer on this journey.

It’s Frontier so they’d charge you for the air you breath if they can work out how but it was on time.

Why are you charged for everything possible?? I went to my flight 2hours early so I can get some food.. I went to the agent to ask them to check me in and print out boarding pass.. I was told they charge for that. What in the world is that about? I understand if I’m trying to check in over the phone yes by all means charge for service.. if I’m rite there at the building asking to get checked in and get charged for it, that’s uncalled for and asking for more money at every given possibility

Book cheap flights from Philadelphia to Denver

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Denver found on KAYAK in the last 72 hours.
5/18Sat
1 stopFrontier
7h 41mPHL-DEN
$68
5/18Sat
1 stopFrontier
8h 51mPHL-DEN
$73
5/2Thu
1 stopFrontier
9h 01mPHL-DEN
$75
5/29Wed
1 stopUnited Airlines
7h 43mPHL-DEN
$106
5/31Fri
1 stopSun Country Air
23h 20mPHL-DEN
$108
5/27Mon
1 stopDelta
5h 33mPHL-DEN
$119
5/25Sat
nonstopUnited Airlines
4h 05mPHL-DEN
$132
5/24Fri
1 stopDelta
7h 31mPHL-DEN
$139
7/14Sun
1 stopSun Country Air
5h 52mPHL-DEN
$155
6/30Sun
2 stopsAmerican Airlines
11h 16mPHL-DEN
$382

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Last minute flights from Philadelphia to Denver

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Philadelphia to Denver that are departing in the next 10 days.
4/20Sat
nonstopFrontier
4h 26mPHL-DEN
4/23Tue
nonstopFrontier
3h 34mDEN-PHL
$125
4/20Sat
nonstopFrontier
4h 26mPHL-DEN
4/24Wed
multi-stopFrontier
11h 00mDEN-PHL
$142
4/20Sat
nonstopFrontier
4h 26mPHL-DEN
4/23Tue
nonstopFrontier
3h 34mDEN-PHL
$147
4/20Sat
multi-stopFrontier
24h 56mPHL-DEN
4/23Tue
nonstopFrontier
3h 34mDEN-PHL
$150
4/20Sat
nonstop
4h 26mPHL-DEN
4/27Sat
multi-stop
8h 31mDEN-PHL
$170
4/20Sat
multi-stop
7h 39mPHL-DEN
4/27Sat
multi-stop
8h 31mDEN-PHL
$175
4/20Sat
nonstopAmerican Airlines
4h 16mPHL-DEN
4/22Mon
nonstopAmerican Airlines
3h 37mDEN-PHL
$311
4/18Thu
nonstopAmerican Airlines
4h 15mPHL-DEN
4/25Thu
nonstopAmerican Airlines
3h 33mDEN-PHL
$414
4/21Sun
nonstopUnited Airlines
4h 14mPHL-DEN
5/4Sat
nonstopUnited Airlines
3h 36mDEN-PHL
$478
4/21Sun
nonstopUnited Airlines
4h 14mPHL-DEN
4/27Sat
nonstopUnited Airlines
3h 34mDEN-PHL
$505

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Philadelphia - Denver Flights

Departure:

Philadelphia (PHL)United States

Destination:

Denver (DEN)United States

Return flight deals:

Denver - Philadelphia

Cabin classes:

$928
$669
$588
$114