DEN - ISB

Find cheap flights from Denver to Islamabad

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Islamabad

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Islamabad, 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 Denver to Islamabad, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
Multiple Airlines
Thu 1/29
DEN - ISB • multi-stop
Cheapest one-way
Multiple Airlines
Thu 1/29
DEN - ISB • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islamabad!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Denver to Islamabad (DEN-ISB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Islamabad 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 round-trip flight deals from Denver to Islamabad

Multiple Airlines Logo
DEN
-
ISB
7357 mimulti-stop
Multiple Airlines Logo
ISB
-
DEN
7357 mimulti-stop
Multiple Airlines
Useful Info

Good to know

Low seasonJuly
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 28% increase in price.

When to book flights from Denver to Islamabad

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

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

    A passport is required to fly from Denver to Islamabad.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Islamabad?

    Star Alliance is the only airline alliance operating flights between Denver and Islamabad.

  • How does KAYAK find such low prices on flights from Denver to Islamabad?

    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 Denver to Islamabad.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islamabad from Denver 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 Denver to Islamabad?

    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 Islamabad with an airline and back to Denver with another airline. Booking your flights between Denver and ISB 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 Denver to Islamabad?

    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 Islamabad from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Denver to Islamabad

 
See real verified KAYAK customer reviews for airlines flying from Denver to Islamabad. 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 Denver to Islamabad? 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.
7.3
Turkish AirlinesOverall score based on 4207 reviews
7.4Food
7.8Crew
7.4Entertainment
7.3Comfort
7.3Boarding
Airline reviews

My, Syed Zawar Hussein Shirazi frequently flyer membership number was not included on my boarding pass from O’Hare to Istanbul despite my reminder to the attendant at check in. Further she forgot to give me my boarding pass form Istanbul to Lahore and she needs to improve her customer service, please 🙏

8.0 ExcellentAnonymous, Jan 2026
ORD - IST
Read more Turkish Airlines reviews

My, Syed Zawar Hussein Shirazi frequently flyer membership number was not included on my boarding pass from O’Hare to Istanbul despite my reminder to the attendant at check in. Further she forgot to give me my boarding pass form Istanbul to Lahore and she needs to improve her customer service, please 🙏

Everything about that day was great I was happy with how things went as a first time traveling with the airline thank you for all that you’ve doing by taking us there to our various destinations thanks.

They oversold the tickets by one which was my ticket so I didn’t have a ticket till last second

Not good. I was supposed to be in Mint but got in economy class

Service was slow and checked bag was off last evening when flying business

Turkish Airline canceled our tickets in the very last minute, with our luggage and everything else, all prepared and good to go. It’s clear that they sold the tickets for better money to someone else. Bad, Bad, Bad business!!!

Awful seating. Bad food. Staff only have one bottle of water and no cans.

it was like a banya -so hot... They did provide a great experience with special food. one toilet broke midflight In general it was a peaceful and relaxing flight - for business class it was good.

The flight from Istanbul to Karachi was an old plane in which the seats don’t even come close to lying flat. It was uncomfortable - may as well have been economy, and a far cry from Qatar Airways that I’m used to. The food was mediocre and entertainment couldn’t even be used because there was zero privacy like in a normal business class, so it would feel as though everyone is watching the movie with you - which is awkward. I had to put my food tray out as a leg stopper to get into some sort of comfortable position to curl up and sleep, which is ridiculous. Unacceptable given the ticket still has a business class price tag.

Chicago to Istanbul was a much better experience than I expected since I’m more accustomed to Qatar Airways business class. The business lounge in the Istanbul airport was amazing - loved the lockers and phone charging stations, and the bathroom was a spa experience in itself. The onward leg from Istanbul to Karachi was utterly disappointing. Terrible plane, and I felt like I was in economy - the seats don’t come near to lying flat and the food was mediocre. What a sad downgrade - it isn’t as though the ticket on that leg was cheaper. So, on that front, there’s no contest with Qatar airways.

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

Information on your arrival and departure airports