Cheap Flights from Denver to Pittsburgh International

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Flight deals from Denver to Pittsburgh International

Looking for a cheap last-minute deal or the best return flight from Denver to Pittsburgh International? Find the lowest prices on one-way and return tickets right here.

Pittsburgh.$319 per passenger.Departing Thu, 14 May, returning Mon, 18 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Thu, 14 May, arriving in Pittsburgh International.Inbound indirect flight with Frontier Airlines, departs from Pittsburgh International on Mon, 18 May, arriving in Denver International.Price includes taxes and charges.From $319, select.

Pittsburgh.$436 per passenger.Departing Fri, 17 Apr, returning Mon, 20 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Fri, 17 Apr, arriving in Pittsburgh International.Inbound indirect flight with Frontier Airlines, departs from Pittsburgh International on Mon, 20 Apr, arriving in Denver International.Price includes taxes and charges.From $436, select.

Pittsburgh.$487 per passenger.Departing Thu, 30 Apr, returning Mon, 4 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Thu, 30 Apr, arriving in Pittsburgh International.Inbound indirect flight with Frontier Airlines, departs from Pittsburgh International on Mon, 4 May, arriving in Denver International.Price includes taxes and charges.From $487, select.

Pittsburgh.$598 per passenger.Departing Tue, 14 Apr, returning Tue, 21 Apr.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Tue, 14 Apr, arriving in Pittsburgh International.Inbound direct flight with Southwest Airlines departs from Pittsburgh International on Tue, 21 Apr, arriving in Denver International.Price includes taxes and charges.From $598, select.

Pittsburgh.$626 per passenger.Departing Fri, 27 Feb, returning Mon, 2 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Fri, 27 Feb, arriving in Pittsburgh International.Inbound indirect flight with Frontier Airlines, departs from Pittsburgh International on Mon, 2 Mar, arriving in Denver International.Price includes taxes and charges.From $626, select.

Pittsburgh.$646 per passenger.Departing Wed, 18 Mar, returning Wed, 25 Mar.Return flight with United.Outbound direct flight with United departs from Denver International on Wed, 18 Mar, arriving in Pittsburgh International.Inbound direct flight with United departs from Pittsburgh International on Wed, 25 Mar, arriving in Denver International.Price includes taxes and charges.From $646, select.

Pittsburgh.$684 per passenger.Departing Sat, 9 May, returning Tue, 19 May.Return flight with United.Outbound direct flight with United departs from Denver International on Sat, 9 May, arriving in Pittsburgh International.Inbound direct flight with United departs from Pittsburgh International on Tue, 19 May, arriving in Denver International.Price includes taxes and charges.From $684, select.

Pittsburgh.$684 per passenger.Departing Tue, 24 Mar, returning Mon, 6 Apr.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Tue, 24 Mar, arriving in Pittsburgh International.Inbound direct flight with Southwest Airlines departs from Pittsburgh International on Mon, 6 Apr, arriving in Denver International.Price includes taxes and charges.From $684, select.

Find the cheapest month to fly from Denver to Pittsburgh International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Pittsburgh International flights are currently cheapest in May.

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Direct flights from Denver to Pittsburgh International

Denver to Pittsburgh International: Alternative routes

Compare routes from Denver to Pittsburgh below. You may find an airport to fly into that's cheaper, faster, or easier than Pittsburgh International.

Denver to Pittsburgh: Flight information

The things to know before you go.

Cheapest flight found	$319
Cheapest month to fly	May
Average flight time	3 hrs, 2 mins
Most popular airline	Southwest Airlines
Average flights per week	38

Finding cheap flights from Denver to Pittsburgh International: Frequently asked questions

How much are return flights from Denver to Pittsburgh International?

The best price we found for a return flight from Denver to Pittsburgh International is $319. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Denver to Pittsburgh International?

3 hours and 2 minutes is the average flight time from Denver to Pittsburgh International.

Which airlines fly direct from Denver to Pittsburgh International?

Southwest Airlines, United and Frontier Airlines fly direct from Denver to Pittsburgh International.

How many flights are there a week from Denver to Pittsburgh International?

As of February 2026, there are 38 flights per week flying from Denver to Pittsburgh International.

When is the cheapest time to fly from Denver to Pittsburgh International?

The cheapest month to fly from Denver to Pittsburgh International is usually May.

Which upcoming date is cheapest to fly from Denver to Pittsburgh International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Pittsburgh International Airport on Thursday, 14 May 2026.

Can I get a direct flight from Denver to Pittsburgh International Airport?

Yes – the average flight time is 3 hours and 2 minutes.

How can I find the best flight deal to Pittsburgh International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Pittsburgh International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Pittsburgh?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Pittsburgh is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Denver to Pittsburgh International Airport (PIT): What you need to know

Start your adventure at Denver International Airport (DEN), the main airport in Denver. Look for flights from Denver to Pittsburgh International Airport (PIT) that jet out of this base.
Expect to be in the air for 3 hours. That's the average time for a direct Denver to Pittsburgh International Airport flight.
Pittsburgh International Airport is located in Pittsburgh. The city runs on the UTC-4 timezone and is two hours ahead of Denver.
The busiest route is from Denver International Airport (DEN) to Pittsburgh International Airport (PIT), with 27 direct weekly services. If you want to be on your way right away, the earliest flight from DEN to PIT is the 7:45am Southwest Airlines option. If a later flight fits your day better, the last departure is at 8:05pm with Southwest Airlines.
To ensure you get on your flight from Denver to PIT, leave plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.
If you're jetting off during a major holiday or other peak period, give yourself extra time. Arrive two hours before domestic flights and up to four hours before international departures. Queues at security and check-in will be longer.

Airports in Denver

Denver International Airport (DEN)

Get there in one go from Denver International Airport (DEN). Nonstop flights from Denver to Pittsburgh International Airport (PIT) operate from here.
You'll have your pick of airlines that offer direct flights from Denver to Pittsburgh International Airport leaving from DEN. Book your ticket with one of these:
United Airlines is the most frequently chosen airline for flights from DEN to PIT.
United Airlines is the top performer for punctuality on this route.
DEN is about 40 kilometres from central Denver. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 35 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the trip time to be around 1 hour 30 minutes.
Get your flight from Denver to Pittsburgh International Airport off to an easy start. Just a short ride from Denver International Airport, stay at Baymont by Wyndham Denver International Airport and you'll be well-rested for the trip ahead.
Denver International Airport has a strong on-time record, reducing your chances of a delayed flight. Departures from DEN arrive on schedule 80.23% of the time.
The address for DEN is 8500 Pena Boulevard.

About Pittsburgh International Airport (PIT)

Have a late flight from Denver to Pittsburgh International Airport? Don't let your travel day stretch into tomorrow. Stay at one of these hotels near PIT and shut your eyes sooner:
Get on the fast track to adventure by picking up a Pittsburgh International Airport rental car. Grab a set of wheels from Dollar, Hertz or Budget and explore beyond Pittsburgh's usual tourist stops.
For the best deal, reserve your ride around one week ahead of your Denver to Pittsburgh International Airport flight.
The street address for PIT is 1000 Airport Boulevard.

How to find the cheapest flights from Denver to Pittsburgh International Airport (PIT)

The cheapest price we've found for a one-way ticket from Denver to Pittsburgh International Airport is $159. For a return flight on this route, the best price is $319. Depending on the availability when you book, these fares may change.
To find cheap flights from Denver to PIT, book ahead. Airlines generally offer the most competitive fares when tickets first go on sale.
Affordable Denver to Pittsburgh International Airport tickets are easier to find when your dates are flexible. Try using the 'Whole month' tool to compare fares across the month and then fly out on the cheapest day.
Finding a cheap flight ticket from Denver to PIT is a breeze with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as prices go down.
Save on your flight from Denver to Pittsburgh International Airport by using filters. Choose your ideal times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Denver to Pittsburgh International Airport (PIT)

April is the quietest month for flights from Denver to Pittsburgh International Airport (PIT), while July is the busiest. Find the best time to go to Pittsburgh based on whether you want a bustling atmosphere or a more laid-back vibe.
When booking your Denver to PIT flight ticket, consider the kind of weather forecast you're hoping for. July is the warmest month in Pittsburgh, with temperatures ranging from 15ºC to 31ºC.
If you want cooler conditions, look for a cheap ticket from Denver to Pittsburgh International Airport in January when temperatures are between -10ºC and 6ºC.

More about Pittsburgh

Start your Pittsburgh trip right by choosing the perfect place to stay. As soon as you've booked your flight from Denver to Pittsburgh International Airport, browse our range of accommodation options including:
All great holidays should include a little sightseeing. Andy Warhol Museum, Carnegie Museum of Art and The Frick Pittsburgh are essential stops on your Pittsburgh itinerary.

Explore more of the United States

Pittsburgh is always a good idea, but there are so many other corners of the United States waiting to be explored. About 241 kilometres west of Pittsburgh, a visit to Columbus will keep your itinerary packed. Start with attractions like Franklin Park Conservatory and Botanical Gardens, Whetstone Park / Park of Roses and Easton Town Centre.
Around 161 kilometres north-west of Pittsburgh, Cleveland is another favourite stop in the United States. No visit is complete without checking out Rock & Roll Hall of Fame & Museum, Cleveland Museum of Art and Cleveland Museum of Natural History.