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$385 Cheap Flights from Denver (DEN) to Istanbul (IST)

View $385 flight on Wed, Dec 30, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Istanbul Airport (IST)

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Cheap Flights from Denver to Istanbul (DEN-IST)

Prices were available within the past 7 days and start at $385 for one-way flights and $794 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Apr 28 - Mon, May 10
DEN
Denver
IST
Istanbul
$794 Roundtrip, found 4 days ago
$794
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Wed, Apr 28 from Denver to Istanbul, returning Mon, May 10, priced at $794 found 4 days ago
Lufthansa
Tue, Mar 9 - Mon, Mar 15
DEN
Denver
IST
Istanbul
$800 Roundtrip, found 5 days ago
$800
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Tue, Mar 9 from Denver to Istanbul, returning Mon, Mar 15, priced at $800 found 5 days ago
Lufthansa
Sun, Apr 11 - Sun, Apr 18
DEN
Denver
IST
Istanbul
$801 Roundtrip, found 1 day ago
$801
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Sun, Apr 11 from Denver to Istanbul, returning Sun, Apr 18, priced at $801 found 1 day ago
Lufthansa
Sun, Apr 4 - Sun, Apr 11
DEN
Denver
IST
Istanbul
$810 Roundtrip, found 18 hours ago
$810
Roundtrip
found 18 hours ago
Select Lufthansa flight, departing Sun, Apr 4 from Denver to Istanbul, returning Sun, Apr 11, priced at $810 found 18 hours ago
Lufthansa
Wed, Apr 28 - Mon, May 10
DEN
Denver
IST
Istanbul
$815 Roundtrip, found 4 days ago
$815
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Wed, Apr 28 from Denver to Istanbul, returning Mon, May 10, priced at $815 found 4 days ago
British Airways
Sun, Dec 27 - Mon, Jan 11
DEN
Denver
IST
Istanbul
$817 Roundtrip, found 1 day ago
$817
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Dec 27 from Denver to Istanbul, returning Mon, Jan 11, priced at $817 found 1 day ago
Lufthansa
Sun, Apr 11 - Sun, Apr 18
DEN
Denver
IST
Istanbul
$817 Roundtrip, found 1 day ago
$817
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Sun, Apr 11 from Denver to Istanbul, returning Sun, Apr 18, priced at $817 found 1 day ago
American Airlines
Wed, Apr 28 - Tue, May 11
DEN
Denver
IST
Istanbul
$822 Roundtrip, found 1 hour ago
$822
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Apr 28 from Denver to Istanbul, returning Tue, May 11, priced at $822 found 1 hour ago
United
Wed, Apr 28 - Tue, May 11
DEN
Denver
IST
Istanbul
$822 Roundtrip, found 1 hour ago
$822
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 28 from Denver to Istanbul, returning Tue, May 11, priced at $822 found 1 hour ago
Air Canada
Tue, Apr 27 - Wed, May 5
DEN
Denver
IST
Istanbul
$824 Roundtrip, found 2 days ago
$824
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Apr 27 from Denver to Istanbul, returning Wed, May 5, priced at $824 found 2 days ago

Alternative airports near Istanbul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Istanbul Airport IST. Cheapest option available. Average driving time to city center is 41 minutes. Flights from $1,030
IST
Istanbul Airport
Cheapest
Average driving time to city center41 min
Flights from $1,030

Find the cheapest month to fly from Denver (DEN) to Istanbul (IST)

April is typically the cheapest month to fly

From $803 - $921 per traveler.

What you need to know for your flight from Denver Intl. to Istanbul

Denver (DEN) to Istanbul (IST) at a glance

Embark on your journey from Denver (DEN) to Istanbul (IST) with a variety of airlines offering this international long-haul route. Explore options from full-service carriers to discover the cheapest flights from Denver that align with your travel plans and schedule. As you prepare to experience Istanbul's remarkable sights and neighborhoods, you can find detailed flight information to ensure a smooth trip from Denver International Airport to Istanbul Airport.

  • Fastest flight duration: around 11h 45m non-stop
  • Route distance: roughly 6,100 miles (9,820 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $400–$905, depending on seasonality and how far ahead you book

Flights from Denver International Airport (DEN) to Istanbul Airport (IST)

According to recent traveler bookings, here are the top airlines favored for flights from Denver to Istanbul, featuring both non-stop and one-stop options. Popular layover spots include Frankfurt International Airport (FRA, roughly 1 hour and 30 minutes), O'Hare International Airport (ORD, about 1 hour and 45 minutes), and Heathrow Airport (LHR, around 2 hours and 45 minutes). These choices allow you to compare prices, total travel times, and cabin classes to secure the ideal itinerary for your journey.

  • Turkish Airlines: This full-service airline provides both non-stop and one-stop options, with one-way ticket prices generally falling between $420 and $995. It dominates the route with about 73% of departures, and the average non-stop flight duration is around 11 hours and 45 minutes.
  • Lufthansa: A full-service airline that specializes in one-stop flights, Lufthansa's one-way fares typically range from $400 to $940. It represents roughly 11% of departures on this route, featuring an in-flight duration of 12 hours and 45 minutes, resulting in a total travel time of approximately 14 hours and 45 minutes, including layovers.
  • United: Another full-service carrier, United offers one-stop services with one-way fares usually between $400 and $755. It accounts for about 10% of departures on this route, with an in-flight time of 12 hours and 45 minutes, leading to a total journey time of around 14 hours and 45 minutes, including layovers.
  • KLM: This full-service airline provides multi-stop flights, with one-way fares typically ranging from $400 to $590. KLM accounts for about 3% of departures on this route, featuring an in-flight duration of 14 hours and 15 minutes, resulting in a total travel time of about 18 hours, including layovers.
  • Air Canada: A full-service carrier offering multi-stop flights, Air Canada's one-way fares generally fall between $495 and $605. It represents approximately 1% of the departures on this route, with an in-flight time of 14 hours and 15 minutes, leading to a total travel duration of around 18 hours, including layovers.

Travelers have the option to enhance their journey from Denver to Istanbul with an upgrade. Turkish Airlines provides business class service on this route.

Best time to fly from Denver (DEN) to Istanbul (IST)

The most popular months for travelers flying from Denver to Istanbul are March, April, and June, when peak temperatures in Istanbul reach up to 72.5°F in June. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 77.9°F. For better deals, February usually offers the lowest average one-way fare around $550. Flight availability peaks in December, with approximately 11 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: February usually offers good deals with average one-way fare around $550, roughly 20% cheaper than the yearly average.
  • More budget-friendly months to fly: September and March typically offer average one-way fares of around $596.
  • Most flight options: December has the highest number of flights from Denver to Istanbul, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January45.0°F (7.2°C)Average7$844
February45.9°F (7.7°C)Average8$550
March48.4°F (9.1°C)High8$604
April54.3°F (12.4°C)High8$656
May63.7°F (17.6°C)Average9$729
June72.5°F (22.5°C)High8$819
July77.4°F (25.2°C)Low8$739
August77.9°F (25.5°C)Low7$635
September72.3°F (22.4°C)Average7$589
October63.9°F (17.7°C)Average7$715
November57.2°F (14.0°C)Average8$698
December49.6°F (9.8°C)Low11$730

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Denver (DEN) to Istanbul (IST)

  • Denver to Istanbul (DEN-ISL): Ataturk International Airport (ISL) is located approximately 20 miles from Istanbul Airport (IST).
  • Denver to Istanbul (DEN-SAW): Sabiha Gokcen International Airport (SAW) lies about 38 miles from Istanbul Airport (IST).
  • Colorado Springs to Istanbul (COS-IST): Colorado Springs Airport (COS) is roughly 73 miles from Denver International Airport (DEN).

How to find the best prices for flights from Denver (DEN) to Istanbul (IST)

Getting some of the best deals on flights from Denver to Istanbul is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book within the two to eight-week range. Morning departures from 5 AM to 12 PM often provide lower prices, while evening flights from 6 PM to 12 AM are the most popular. Additionally, flying on Wednesday generally results in cheaper fares, though Tuesday is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Istanbul Airport from Denver International Airport

Istanbul welcomes travelers from Denver with a range of transport options based on price, convenience, and proximity. Istanbul city center is approximately a 20-minute drive (covering about 16 miles) from Istanbul Airport, depending on traffic. Here's how to reach Istanbul efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Istanbul, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Istanbul Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Istanbul Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Istanbul (IST) cost?
You can find cheap one-way flights from $385 and cheap return flights from $794 Denver, CO (DEN-Denver Intl.) to Istanbul (IST) with Expedia. One-way flights usually range from $700 to $6655, and return flights typically cost between $1025 and $6679. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Istanbul (IST) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
January is the cheapest month to fly from Denver, CO (DEN) to Istanbul (IST), with average round-trip fares around $1,047. This fare is about 16% lower than the average price throughout the year, likely due to lower travel demand after the holiday season. Other economical months to consider are February and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
You can fly direct from DEN to IST on Turkish Airlines, with around 7 flights per week.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
Turkish Airlines is one of the cheapest airlines offering nonstop flights from Denver (DEN) to Istanbul (IST), with round-trip tickets starting from around $762. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Istanbul (IST), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
The best airline to fly with from Denver, CO (DEN) to Istanbul (IST) will differ from traveler to traveler. If you like to fly early, Turkish Airlines offers early morning flights. If price is the most important factor, Turkish Airlines typically offers the lowest fares. United offers the most daily flights from DEN to IST, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
The best time to fly from Denver, CO (DEN) to Istanbul (IST) is in January or October, with average return flight prices around $1,047. These months are ideal for balancing cost and travel experience, making your journey more enjoyable.*Prices based on flights available on Expedia in the last year.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
On average, there are around 1 nonstop flights per day from Denver Intl. (DEN) to Istanbul Airport (IST). For more options, look at flights that include layovers.
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
The earliest flight from Denver International Airport (DEN) to Istanbul Airport (IST) usually departs at around 12:40 AM, operated by United and Turkish Airlines. This seasonal service is available in April, allowing you to begin your travels to Turkey early in the day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
The most popular departure times for flights from Denver International Airport (DEN) to Istanbul (IST) are in the late afternoon to early evening, from 3pm to 6pm. About 37% of passengers prefer this time window. Many major carriers, including United Airlines, Lufthansa and Turkish Airlines, offer flights during this window. This timing works well because it allows you to arrive in Istanbul in the evening, giving you a full day to explore upon arrival.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
Flying nonstop from DEN to IST takes around 11 hours 50 minutes, with the route covering approximately 6,116 miles. Flights with a layover typically take 9 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
Business class seats are offered on the DEN to IST route. Airlines that offer business class service on this route include:

  • United Airlines
  • British Airways
  • Lufthansa
  • Turkish Airlines
  • Air Canada
  • Icelandair
  • American Airlines
  • Aer Lingus
  • Air France
  • Delta Air Lines

First class is available with United Airlines and Lufthansa.
How much is a business class flight from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
A direct, return business class ticket from Denver, CO (DEN) to Istanbul (IST) typically costs between $6,853 - $8,055. A non-stop, one-way business class flight is usually around $3,466 - $3,816. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Denver, CO (DEN-Denver Intl.) to Istanbul (IST) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Istanbul (IST) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Istanbul (IST) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Istanbul from Denver Intl. (DEN)?
From Denver Intl. (DEN), you can fly into Sabiha Gokcen Intl. (SAW) and Istanbul Airport (IST) in Istanbul. Some flights may connect through major hubs like Minneapolis - St. Paul Intl. (MSP), Hartsfield-Jackson Atlanta Intl. (ATL), Seattle - Tacoma Intl. (SEA) before reaching Istanbul. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Istanbul (IST) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Istanbul (IST) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Istanbul (IST) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Istanbul (IST) Istanbul Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Istanbul (IST)?
If you booked your Denver, CO (DEN-Denver Intl.) to Istanbul (IST) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Istanbul
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Icelandair, JetBlue Airways, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$794
Distance
6115 mi
Average flight time
10 hours 35 mins

Book with confidence

Denver to Istanbul Flights

The cheapest times to fly from Denver to Istanbul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Istanbul are during the month of April. You can find some of the cheapest flights from Denver to Istanbul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Istanbul

Sunday is one of the best days to book for cheap flights from Denver to Istanbul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Istanbul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Istanbul in 2026. You can also book with separate airlines for your outbound and return journeys, from $385 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Istanbul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Istanbul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Istanbul Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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