PHL - DEN

£74 Find Cheap Flights from Philadelphia 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 Philadelphia to Denver departing on 20/1. 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 Philadelphia 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 Philadelphia to Denver, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£165
Typical prices: £177-£351
JetBlue
Wed 11/3Mon 16/3
PHL - DEN • 1 stop
Cheapest direct flights
£166
Typical prices: £175-£335
Southwest
Wed 14/1Sun 18/1
PHL - DEN • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Priority Boarding helps secure carry-on space.
Air Canada's Wi-Fi is available on select flights.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 12% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Philadelphia to Denver (PHL-DEN)

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

Recent return flight deals from Philadelphia to Denver

Wed, 11 Mar - Mon, 16 Mar
JetBlue Logo
06:00 - 13:51
PHL
-
DEN
9h 51m1 stop
JetBlue Logo
22:44 - 07:49
DEN
-
PHL
7h 05m1 stop
£165JetBlue
Tue, 13 Jan - Sun, 18 Jan
United Airlines Logo
15:43 - 18:12
PHL
-
DEN
4h 29mdirect
United Airlines Logo
17:55 - 23:30
DEN
-
PHL
3h 35mdirect
£166United Airlines
Tue, 13 Jan - Sun, 18 Jan
United Airlines Logo
15:43 - 18:12
PHL
-
DEN
4h 29mdirect
United Airlines Logo
06:00 - 14:31
DEN
-
PHL
6h 31m1 stop
£174United Airlines
Wed, 14 Jan - Sun, 18 Jan
Southwest Logo
14:10 - 21:20
PHL
-
DEN
9h 10m1 stop
Southwest Logo
10:50 - 16:20
DEN
-
PHL
3h 30mdirect
£178Southwest
Sat, 24 Jan - Wed, 28 Jan
United Airlines Logo
15:43 - 18:12
PHL
-
DEN
4h 29mdirect
United Airlines Logo
17:55 - 23:30
DEN
-
PHL
3h 35mdirect
£186United Airlines
Sat, 24 Jan - Wed, 28 Jan
Southwest Logo
14:05 - 16:25
PHL
-
DEN
4h 20mdirect
Southwest Logo
09:10 - 17:25
DEN
-
PHL
6h 15m1 stop
£193Southwest
Wed, 28 Jan - Sat, 31 Jan
Southwest Logo
06:10 - 13:10
PHL
-
DEN
9h 00m2 stops
Southwest Logo
10:00 - 15:40
DEN
-
PHL
3h 40mdirect
£197Southwest
Wed, 14 Jan - Wed, 21 Jan
Southwest Logo
14:10 - 21:20
PHL
-
DEN
9h 10m1 stop
Southwest Logo
10:50 - 16:20
DEN
-
PHL
3h 30mdirect
£198Southwest
Wed, 7 Jan - Wed, 14 Jan
Delta Logo
11:27 - 16:44
PHL
-
DEN
7h 17m1 stop
Delta Logo
13:18 - 22:06
DEN
-
PHL
6h 48m1 stop
£201Delta
Wed, 28 Jan - Sat, 31 Jan
Southwest Logo
06:10 - 15:30
PHL
-
DEN
11h 20m2 stops
Southwest Logo
08:20 - 15:35
DEN
-
PHL
5h 15m1 stop
£204Southwest
Booking Insights

KAYAK's insights & trends for Philadelphia to Denver flights

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.

How much is a return flight from Philadelphia to Denver?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Denver departing in March.

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 round-trip 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 July, where tickets cost £207 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is £292 and £260 respectively.

How far in advance should I book a flight from Philadelphia 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 Philadelphia 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 Philadelphia to Denver, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia 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.
Airlines
Air Canada

Air Canada offers priority boarding for Business Class and elite status passengers, enhancing travel efficiency.


Air Canada provides Wi-Fi on select flights; check availability five days before departure for planning.

United Airlines

United offers Priority Boarding for Zone 2, ensuring overhead bin space for carry-ons.


United's Wi-Fi varies; T-Mobile customers enjoy free streaming. Check coverage before purchasing.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada 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 out at sea, likely en route to Antarctica or the Arctic.

Read more

Good to know - Cheap tickets from Philadelphia to Denver

Low seasonJanuary
Cheapest flight£74
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 13% 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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 is the cheapest flight from Philadelphia to Denver?

    In the last 3 days, the lowest price for a flight from Philadelphia to Denver was £74 for a one-way ticket and £165 for a return.

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

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

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

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

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

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

  • 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 return ticket. You could then fly to Denver with an airline and back to Philadelphia with another airline.

  • 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.

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

  • Looking for a cheap flight from Denver to Philadelphia? 25% of our users found flights on this route for £55 or less one-way.

Prefer to fly direct from Philadelphia to Denver?

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

Direct departures

Philadelphia to Denver Intl

Monday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Tuesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Wednesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Thursday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Friday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Saturday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Sunday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

See more direct flights

Direct returns

Denver Intl to Philadelphia

Monday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Tuesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Wednesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Thursday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Friday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Saturday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

Sunday

American Airlines, Frontier, Southwest, +1 more

American Airlines, Frontier, +2 more

See more direct flights

Everything you need to know for your flight from Philadelphia to Denver

Information on your arrival and departure airports