HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$118+ Cheap flights from Pittsburgh to Denver (PIT - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — DEN
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pittsburgh to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Pittsburgh to Denver Intl are usually found in October or August, booked 45 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Pittsburgh to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(JetBlue)

One-way from

$118
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$400

Good round-trip deal

$387 or less

Good one-way deal

$190 or less
Provider with most accurate pricing for Pittsburgh-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pittsburgh-Denver Intl flights.
Search Deals
From Pittsburgh to Denver Intl
Search Deals
One-way flight from Pittsburgh to Denver Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Pittsburgh to Denver Intl.
Search Deals
Price to beat on a one-way flight from Pittsburgh to Denver Intl.
Search Deals

Find flight deals from Pittsburgh to Denver

Cheapest flights from Pittsburgh to Denver
Explore the most affordable flight options available from Pittsburgh to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This JetBlue deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/307:00 amPIT - DEN
1 stop8h 43mJetBlue
Mon 6/210:38 pmDEN - PIT
1 stop7h 20mJetBlue
Deal found 4/27$289
This Cheapflightsfares deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/65:22 pmPIT - DEN
Nonstop3h 43mFrontier
Mon 6/98:44 amDEN - PIT
1 stop7h 16mFrontier
Deal found 4/27$297
This Mytrip deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/45:54 amPIT - DEN
2 stops36h 57mMultiple Airlines
Wed 6/116:07 pmDEN - PIT
1 stop14h 18mMultiple Airlines
Deal found 4/27$303
This Sun Country Air deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2211:11 amPIT - DEN
1 stop23h 56mSun Country Air
Sat 6/285:07 pmDEN - PIT
1 stop15h 18mSun Country Air
Deal found 4/28$305
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2411:44 amPIT - DEN
1 stop10h 34mDelta
Tue 7/17:05 amDEN - PIT
1 stop15h 31mDelta
Deal found 4/27$330
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:03 pmPIT - DEN
1 stop5h 37mUnited Airlines
Sat 5/245:42 pmDEN - PIT
Nonstop3h 07mUnited Airlines
Deal found 4/27$333
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/185:10 amPIT - DEN
Nonstop3h 25mSouthwest
Wed 6/251:00 pmDEN - PIT
2 stops7h 10mSouthwest
Deal found 4/27$338
This Alaska Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/37:44 pmPIT - DEN
2 stops24h 25mAlaska Airlines
Sat 6/78:00 amDEN - PIT
1 stop8h 44mAlaska Airlines
Deal found 4/28$410
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:24 amPIT - DEN
1 stop5h 07mAmerican Airlines
Sat 1/32:24 pmDEN - PIT
1 stop4h 53mAmerican Airlines
Deal found 4/28$491

Cheapflights Fare Finder

Customize your flight search to find flights from Pittsburgh to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from Pittsburgh to Denver that are best for you.

Fly from

Pittsburgh

Fly to

Denver

Route

Depart

Return

Price

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Fri 5/30

7:00 am-1:43 pm

1 stop8h 43m

Denver Intl

Mon 6/2

10:38 pm-7:58 am

1 stop7h 20m

$289

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Fri 6/6

5:22 pm-7:05 pm

Nonstop3h 43m

Denver Intl

Mon 6/9

8:44 am-6:00 pm

1 stop7h 16m

$297

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Wed 6/4

5:54 am-4:51 pm

2 stops36h 57m

Denver Intl

Wed 6/11

6:07 pm-10:25 am

1 stop14h 18m

$303

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Sun 6/22

11:11 am-9:07 am

1 stop23h 56m

Denver Intl

Sat 6/28

5:07 pm-10:25 am

1 stop15h 18m

$305

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Tue 6/24

11:44 am-8:18 pm

1 stop10h 34m

Denver Intl

Tue 7/1

7:05 am-12:36 am

1 stop15h 31m

$330

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Tue 5/20

6:03 pm-9:40 pm

1 stop5h 37m

Denver Intl

Sat 5/24

5:42 pm-10:49 pm

Nonstop3h 07m

$333

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Wed 6/18

5:10 am-6:35 am

Nonstop3h 25m

Denver Intl

Wed 6/25

1:00 pm-10:10 pm

2 stops7h 10m

$338

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Tue 6/3

7:44 pm-6:09 pm

2 stops24h 25m

Denver Intl

Sat 6/7

8:00 am-6:44 pm

1 stop8h 44m

$410

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Fri 7/11

5:40 pm-7:13 pm

Nonstop3h 33m

$119

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Sun 5/25

7:00 am-1:43 pm

1 stop8h 43m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 18 results
1
2

Compare providers for flights from Pittsburgh to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pittsburgh to Denver in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Pittsburgh-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pittsburgh-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pittsburgh-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Pittsburgh-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pittsburgh-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Pittsburgh to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Pittsburgh to Denver trip
Airlines
United Airlines

United offers Economy Plus seats with extra legroom for added comfort.


Prepay for checked bags 24 hours before to save on fees.

Read more about United Airlinesby Harriet Baskas
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for more space.


Bring a power bank as Frontier offers no in-seat power or Wi-Fi.

Read more about Frontierby Marisa Garcia
Southwest

Enjoy free snacks and non-alcoholic drinks on board, enhancing your travel experience.


Two free checked bags included, even for oversized items like skis or golf clubs.

Read more about Southwestby Marisa Garcia
Airports
PIT

Arrive 3 hours early for morning flights due to busy security lines. Check the airport's live security time tracker for shorter wait times.

Read more about PITby John Walton
DEN

Use the A Line train for a 37-minute ride to Union Station. It runs every 15 minutes and offers mobile ticketing for convenience.

Read more about DENby Emily Zemler
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

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
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
John Walton

John Walton

Expert on PIT

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Pittsburgh to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Pittsburgh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pittsburgh to Denver

How far ahead should I book a flight from Pittsburgh to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Pittsburgh to Denver. Price data was last updated on April 25, 2025.

To ensure you get the cheapest price possible for a flight from Pittsburgh to Denver, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Pittsburgh to Denver?

Currently, October is the cheapest month in which you can book a flight from Pittsburgh to Denver (average of $197). Flying from Pittsburgh to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PIT to DEN?

Find hourly flight availability from Pittsburgh to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Pittsburgh to Denver at noon. If you’re flexible enough to do this you can expect to save up to 63% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Pittsburgh to Denver?

Use this chart to determine the cheapest time to fly round-trip from Pittsburgh to Denver. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Pittsburgh to Denver flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated April 29, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Pittsburgh to Denver to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,949 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,949 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,292 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Pittsburgh to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Pittsburgh to Denver?

    To fly from Pittsburgh to Denver, you need to book a flight from Pittsburgh (PIT) to Denver Intl (DEN). Nonstop flights to Denver Intl from Pittsburgh take 3h 20m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from Pittsburgh to Denver Intl offered by 6 different airlines.

  • How popular is this Pittsburgh to Denver flight route?

    This flight path from Pittsburgh to Denver Intl was viewed by 69 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Pittsburgh to Denver round-trip?

    Cheapflights users have booked flights from Pittsburgh to Denver round-trip from $289. Other airlines that can offer you cheap pricing are Frontier, from $297, and Sun Country Air, from $305. Users have found that JetBlue is 19% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Pittsburgh to Denver one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $118. However, be on the lookout for offers from JetBlue and Sun Country Air, as they are both options that can get you from Pittsburgh to Denver for a low price.

  • What are the cheapest flights from Pittsburgh to Denver?

    On average you can expect to pay $780 for a flight from Pittsburgh to Denver. The cheapest flight overall is $153 while the most popular route, (Pittsburgh - Denver Intl) is currently priced at $241.

  • Can I find deals for flights from Pittsburgh to Denver that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to Denver.

  • Can I find deals for business class flights from Pittsburgh to Denver?

    Yes. Cheapflights offers flight deals from Pittsburgh to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pittsburgh to Denver?

    Currently, October is the cheapest month in which you can book a flight from Pittsburgh to Denver (average of $197). Flying from Pittsburgh to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Pittsburgh?

Book flights to Pittsburgh if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Silverthorne
Brighton
Golden
Greeley
Frisco
Grand Lake
Thornton
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield
Idaho Springs
Limon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pittsburgh to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Denver flights
LaGuardia to Denver flights
John F Kennedy Intl to Denver flights
Philadelphia to Denver flights
Dulles Intl to Denver flights
Reagan-National to Denver flights
John F Kennedy Intl to Colorado Springs flights
Newark to Colorado Springs flights
Dulles Intl to Colorado Springs flights
John F Kennedy Intl to Aspen flights
Newark to Aspen flights
LaGuardia to Colorado Springs flights
Reagan-National to Colorado Springs flights
Newark to Grand Junction flights
John F Kennedy Intl to Grand Junction flights
LaGuardia to Grand Junction flights
LaGuardia to Aspen flights
Newark to Montrose flights
Harrisburg to Denver flights
LaGuardia to Montrose flights
Philadelphia to Colorado Springs flights
Scranton to Denver flights
Allentown to Denver flights
Newark to Vail flights
Philadelphia to Grand Junction flights
Dulles Intl to Aspen flights
Newark to Durango flights
Dulles Intl to Durango flights
Dulles Intl to Grand Junction flights
LaGuardia to Durango flights
LaGuardia to Vail flights
State College to Denver flights
Reagan-National to Durango flights
Reagan-National to Aspen flights
Harrisburg to Montrose flights
Philadelphia to Durango flights
John F Kennedy Intl to Vail flights
Dulles Intl to Vail flights
Reagan-National to Grand Junction flights
Newark to Gunnison flights
Dulles Intl to Hayden flights
Dulles Intl to Montrose flights
John F Kennedy Intl to Montrose flights
Harrisburg to Colorado Springs flights
Philadelphia to Aspen flights
Reagan-National to Vail flights
John F Kennedy Intl to Durango flights
LaGuardia to Gunnison flights
Reagan-National to Montrose flights

Top 6 airlines flying from Pittsburgh to Denver

Discover the top 6 airlines that operate flights from Pittsburgh to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$162FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$184Average$395FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$192Average$324FlexibilityNo cancel feeOn-time71%
DeltaCheapest$199Average$357FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$209Average$329FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$315Average$446FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.