Cheap Flights from Denver to Tehran from $1,144

Frequently Asked Questions

• Which airlines offer flights from Denver to Tehran?

  At the moment, several airlines serve connecting flights from Denver to Tehran, including: Turkish Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Denver to Tehran?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Denver to Tehran is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Denver to Tehran?

  To find best deals on flights from Denver to Tehran, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Oct 13, with one-way flights priced at just $1,144.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Turkish Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Tehran travel is around October.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Denver (DEN) to Tehran (THR) the cheapest?

  The cheapest months to fly from Denver to Tehran is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Denver to Tehran on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Denver to Tehran on October 13, 2026 with Turkish Airlines, with prices starting at $1,144.

• Which airports can I fly into Tehran from Denver?

  You can arrive at any of the following airports in Tehran: Imam Khomeini International Airport (IKA), and Mehrabad International Airport (THR). Flights from Denver International Airport to Imam Khomeini International Airport (DEN-IKA) are by far the most popular option for this route.

• Is there any time difference between Denver and Tehran?

  The time difference between Tehran and Denver is 10h.

• How do I change or cancel my ticket from Denver to Tehran?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Denver to Tehran?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Denver to Tehran is $1,144. Fares vary by travel date, airline and availability.

• How do I book flights from Denver to Tehran on Trip.com?

  Enter Denver and Tehran, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.