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Book Cheap Flights from Denver (DEN) to Philadelphia (PHL)

Info About Flights From Denver to Philadelphia

PHL is the busiest direct gateway to and from Denver International Airport (DEN). The flight covers an average distance of about 1,562 miles (2,513 km) across the United States, with a flight duration of a few minutes more than 3 hours and 35 minutes in both directions (on average). Prices for TCG vary between $180 to $280.

Field Information

Popular route:

Denver, CO (DEN) to Philadelphia International Airport (PHL)

Mean Duration of Flight:

3 hours 35 min (range: 3 hours 20 min to 3 hours 50 min)

Average round-trip ticket price: 

$ 180- $ 280

4 railroads(American United Southwest, Frontier) were here.

Nonstop Flights:

Everyday flights during the weekday

There are fewer other airports; 1 major international airport (PHL) is listed in the Fact Sheet for the neighboring Destination Region airports. Due to the rivalry between the traditional airlines and the ultra-low-cost carriers, it is fairly simple to find cheap flights from Denver to Philadelphia.

Everything You Should Know: Denver Intl. Airport (DEN) to Philadelphia (PHL)

Cheapest round-trip:

From $75 (on ultra-cheap domestic carriers during off-peak times)

Cheapest Non-Stop One-Way: 

From $62 to $72

Advice From Real Travelers:

United Economy Plus: Not as much legroom as other airlines but worth the additional fee, given you'll be on nearly a 4-hour transcontinental flight. Up to 5 extra inches.

Top Airlines Operating Non-Stop

  • Frontier Airlines: $62 one-way, or $112 round-trip. Cheapest fares on Frontier Airlines.
  • Southwest Airlines: Has always been rated high for traveler satisfaction and baggage allowance policy.
  • American Airlines & United Airlines: Two of the world's top three full-service airlines, with multiple daily flights, Premier Class & First Class offerings, as well as excellent frequent flyer programs.

Alternative Airports Near Denver

If DEN is frequently oversold and your destination isn't too far away in neighboring states, it's worth looking into other departure locations.

Colorado Springs Airport (COS)

Approximately 85 miles south of downtown Denver (as little as 7590 minute drive). An easy-to-access, stress-free alternative with faster TSA security lines, and simpler terminal logistics and parking. Direct flights to Philadelphia are infrequent from COS but an effortless one-stop connection through a major hub is always possible.

The flight Duration: 

5 h 30 m - 7+h (connecting flights)

Cheapest One-Way Fare: 

From $90+

Cheapest Round-Trip Fare: 

From $190+

Cheapest Airlines: 

Southwest Airlines, United Airlines, American Airlines

Cheyenne Regional Airport (CYS)

Located 100 miles north of Denver in Wyoming (1 hr. drive up I-25). CYS has a small-airport feel with free parking and very little lines, mostly just connecting feeder flights into major hub networks.

Travel time: 

6h 8h+ (connecting flights)

Cheapest One-Way Fare: 

From $110+

Cheapest Round-Trip Fare:

From $220+

Cheapest Airlines:

United Express

Regional/Neighboring State Options

Really, regional facilities may sometimes offer survivors a backdoor routing or parking savings for those passengers leaving from nearby areas or driving from state borders.

Pueblo Memorial Airport (PUB)

About 115 miles south of Denver. PUB serves local traffic from the central city and offers limited use for regional traffic, with a direct connection to Denver and other major hubs.

Flight Time: 

6h 9h (connecting)

Cheapest One-Way Fare:

From $100+

Cheapest Round-Trip Fare:

From $210+

Inexpensive Airlines (interlines to the big ones):

Southern Airways Express

Laramie Regional Airport (LAR)

Approximately 130 miles northwest of Denver. Allows for convenient access to airline hubs for travelers living in northern Colorado or southern Wyoming.

Fly time:

6h 8h + (mainly connecting)

Cheapest One-Way Fare:

From $105+

Cheapest Round-Trip Fare:

From $215+

Cheapest Airlines: 

United Airlines

For those who require non-stop convenience, the least expensive and fastest option for United States residents is to purchase direct flights from denver to philadelphia directly from Denver International Airport (DEN).

Alternative Airports Near Philadelphia

In the event your trip is headed toward Pennsylvania, if you fly into PHL, you will likely use the primary Philadelphia International Airport. If your destination is in the Greater Philadelphia or the Tri-State area, you might consider other airports.

Trenton-Mercer Airport (TTN)

Situated approximately 35 miles in the northwest of Philadelphia, in New Jersey, TTN is a modest, user-friendly regional airport and has become focus city of inexpensive travel into the region.

Total flight duration is either 3 hours 40 minutes (if the non-stop seasonal options are available) or 6+ hours (if connecting).

Cheapest One-Way Fare:

From 4980

Cheapest Round-Trip Fare:

From 98160

Cheapest Airlines: 

Frontier Airlines

Atlantic City International Airport (ACY)

Very accessible from South Jersey, ACY is 55 miles southeast of Philadelphia with a great travel time (easy security screening and simple parking).

Flight time (connecting routes):

5h 30m -7+h

Cheapest One-Way Fare:

From $60+

Cheapest Round-Trip Fare:

From $130+

Cheapest Airlines: 

Spirit Airlines

Wilmington Airport (ILG)

ILG will be conveniently located just 30 miles southwest of downtown Philadelphia in Delaware. ILG offers the easiest access to the southern Philadelphia metro area with little inconvenience and inexpensive parking rates.

The duration of the flight:

3h 45m6+h

Cheapest One-Way Fare: 

From $55+

Cheapest Round-Trip Fare:

From $115+

Cheapest Airlines: 

Avelo Airlines

Denver to Philadelphia Highlights

How Much is a Round-Trip Flight From Denver to Philadelphia?

Overall, round-trip fares on this route are quite competitive at the moment. Most legacy carriers standard main cabin ticket prices range from around $180 - $320 during high travel months. Although they tend to be much lower, $112 to $150 during mid-week time frames or slower demand months such as late August and September on "discount" or budget airlines. During peak summer months (June & July) and major winter holiday season weeks, I would expect round-trip prices to trend closer to $350 $480.

What is the Cheapest Denver to Philadelphia Flight Route?

The lowest fare is simply the direct route DEN to PHL. DEN and PHL are both very large bases for the major carriers operating. With the number of flights from there to PHL or DEN is high, spikes in price tend to be suppressed. A couple of the routing options through hubs like ORD, DFW, or CLT are sometimes priced higher than the direct routes, as there are many more taxes and segment fees added to them.

What’s the Cheapest Day of the Week to Fly?

  • Best Departure Days: Watching the price trend of Tuesday and Wednesday departures from Denver to Philadelphia, the cheapest days to fly are Tuesday and Wednesday. You could save up to 20% 30% by not leaving on the weekend.
  • Days to Avoid: Friday afternoon and Sunday evening are the most expensive periods to fly owing to high demand caused by business travelers and vacationers.
  • Best Return Days: Two days of the week have the lowest return fares to Denver; Tuesday and Saturday are best.

What is the Cheapest Month to Fly?

  • Cheapest Months: Generally January, February, and the last few weeks of September are the cheapest months in which to travel this route, with round-trip fares averaging about 140 to 190.
  • Most Expensive Months: June, July, and December, because of summer vacations and the holiday rush.

Can I Save Money by Flying With a Layover?

For some long-haul international flights, layovers do occasionally lower costs. On the Denver-Philadelphia route, non-stop flights frequently save money or are priced the same as a 1-stop. For certain specific high-demand travel days, a layover flight might be only 15 to 30 more expensive but will also take 2 to 5 more hours of travel. This introduces the possibility of having to wait in the airport to claim delayed baggage or to re-book after a missed connection.

The best way to find cheap flight tickets from denver to philadelphia is to enable price alerts 4 to 8 weeks before your intended departure date.

Which Airlines Provide the Cheapest Flights?

Frontier Airlines is constantly claiming to have the lowest fares on non-stop flights between DEN and PHL with one way special fares for under $70. Southwest Airlines brings a comparable total value when taking into account two free checked bags and no hidden luggage fees. Legacy airlines such as American Airlines and United often offer similar fares as well on basic economy fares during off-peak travel windows.

Which Airlines Fly Most Frequently Between Denver and Philadelphia?

In an average week, there are 70-75 nonstop last-minute flights from Denver to Philadelphia. The breakdown of how many flights each carrier has is like this:

  • American Airlines: Fr. Approx. 25 flights per week (roughly 3-4 nonstops daily)
  • United Airlines: Flies approximately 24 flights a week (ca. 3 nonstops a day)
  • Southwest Airlines: Flights-about 21 per week (about 23 nonstops daily)
  • Frontier Airlines: 7-10 Flights per week. (1 daily nonstop)

Which Airlines Fly Non-Stop Between Denver and Philadelphia?

Four major airlines offer direct, non-stop service on this route:

  • American Airlines (Oneworld Hub carrier at PHL)
  • United Airlines (Star Alliance Hub carrier at DEN)
  • Southwest Airlines (Major low-cost carrier)
  • I have designed for Frontier Airlines (in U.S., the Ultra-low-cost carrier based in Denver).

How Often are Flights From Denver to Philadelphia Delayed?

On this route, 20% to 24% of flights are late by more than 15 minutes (11-14). On this route, most delays are due to afternoon thunderstorms in Denver in late spring and summer and heavy flow in the East Coast airspace (when delays do happen, on average one is 45 to 90 minutes late).

What is the Most Punctual Flight Time?

Departures in the morning (6:00 AM- 9:00 AM) tend to be more on time; planes that leave in the morning are unlikely to experience delays from previous flight legs. Since they are generally already at the gate (or held in place until required) the night before. Departures in the evening (after 4:00 PM) are more likely to be delayed due to the increasing congestion of departure time throughout the national airspace system.

What Day of the Week Experiences the Fewest Flight Delays?

  • Least delay: Tuesdays and Saturdays have the highest proportion of on-time arrivals on time it is because of less airspace congestion and time of day passenger departure times.
  • Most of the Delays: Distancing on the 17 August 2003 and 19 th August 2003 weekends due to more corporate and week end also peak period leisure movement.13 6.5.4 August 2003 Thursday, Saturday, and Sunday 13

Which Airline Has the Best Punctuality Record on This Route?

Delta Air Lines (connecting flights) and United Airlines (non-stop service) have long had excellent on-time performance records. At least on flights originating from Denver International Airport. American Airlines does as well with dependable operations on this 2:00 AM outbound run between hub airports.

No matter how last-minute you may be wanting to get to your destination. Looking at historical records of on-time performance for your flight number before you book your flight from Denver to Philadelphia can help you avoid the stress of unnecessary delays at the airport.

Which Cabin Class Options Are Available?

Based on the airline, passengers flying between Denver and Philadelphia can select an appropriate class:

  • First Class: Available through American Airlines and United Airlines (includes wide recliner seats, extra food choices, free checked luggage, early boarding)
  • Premium Economy / Extra Legroom: Available with United Economy Plus, American Main Cabin Extra (3 to 5 more inches of legroom and early boarding).
  • Economy standard: Present on all four non-stop airlines.
  • Basic Economy / Ultra-Low-Cost: Budget fares available on Frontier, United, and American (deducted from standard price, with rigid regulations about light-weights)

How Many Flights operate per day between Denver and Philadelphia?

Looking at the average number of nonstop flights from Denver to Philadelphia each day, we find between 9 and 12 departures leaving Denver to fly to PHL. Based on the day of the week, there are 70 to 75 nonstop flights flying from Denver to Philadelphia each week. From 6:30 in the morning until midnight, there are departure times.

How Long Does a Flight Take?

There are several factors that will determine how long a flight takes. The most obvious one will be how far you are traveling, as there is a considerable difference between short-haul and long-haul flights. With time of day that you are traveling will affect not only the time it takes to fly but also the amount of delays.

Total non-stop time for this flight is a mean of 3 hours, 35 minutes to cover a distance of 1,562 miles. Eastbound time (DEN to PHL) is marginally optimized (around 3h 20m) due to tailwinds from the jet stream, while the Westbound return (PHL to DEN) is more burdensome (~3h 50m) in the presence of headwinds.

What’s the Earliest Departure Time?

The first non-stop flight departures from Denver International Airport in the morning are usually at about 6:30 AM. Also, the flight lands at Philadelphia International Airport at about 12:10 PM EST (Presuming that service time tuning is practicable)

Insider Tips to Save More on Denver to Philadelphia Flights

Here are some tips to help you get the lowest airfare possible and make travelling between Colorado and Pennsylvania a pleasant experience:

Fly on Mid-Week Days:

Plan to travel starting on a Tuesday or Wednesday to get the lowest baseline fares from all airlines.

Book in Advance:

Book your flight tickets 30-60 days in advance of your planned departure date to prevent the increase in prices due to last-minute booking.

Compare Baggage Rules:

If you're traveling with more than 1 bag, Southwest Airlines often beats "cheaper" base fares on budget carriers once you factor in fees for your carry-on and checked bag(s).

Pick Morning Flights:

Fly earlier in the day before 9:00 am. Early flights will have fewer weather delays and air traffic holds.

Monitor Hub Competition:

Watch for fare sales from United (DEN hub) to American (PHL hub), as rivalries between them can a lot increase the frequency of discounts on main cabin seats.

4 different airlines offer direct non-stop flights every day between Denver and Philadelphia. Choose the perfect carrier, time, and fare to enjoy a stress-free trip across the USA in no time!

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