$537 Flights from Chicago (CHIA) to Tehran (THRA)

Compare Chicago to Tehran flight deals

Find the cheapest month or even day of the year to fly to Tehran

Book the best Tehran fare with no extra fees

Flight deals from Chicago to Tehran

Looking for a cheap last-minute deal or the best round-trip flight from Chicago to Tehran? One-way tickets start from $537, and the cheapest month to travel is September. Find the best flight deals for 2026 and compare prices across airlines, durations, and more, all in one place.

Find the cheapest month to fly from Chicago to Tehran from $537 one-way

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

Alternative Chicago to Tehran routes

Looking for the cheapest, fastest or easiest route from Chicago to Tehran? You could fly into the following airports instead.

Chicago to Tehran: Flight information

The things to know before you go.
Cheapest flight found$537
Cheapest month to flyAugust

Finding cheap flights from Chicago to Tehran: Frequently asked questions

There are 2 airports in Tehran: Mehrabad International and Imam Khomeini International.
The best price we found for a round-trip flight from Chicago to Tehran is $1,068. 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.
Currently, there are no airlines that fly direct from Chicago to Tehran. But we found flights with one or more stops from $1,068.
There are no flights flying from Chicago to Tehran, as of July 2026.
The cheapest month to fly from Chicago to Tehran is usually September.
If you're flying from Chicago, the cheapest airport near Tehran is Imam Khomeini International – which is 22.6 miles away from the center of Tehran. We've found flights to this airport from $1,068.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Tehran on Wednesday, September 16, 2026.
No airlines currently offer direct flights between Chicago and Tehran. Most routes have one or more stops.
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 Tehran 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.

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

In July, the average temperature is usually around 78°F. July is typically the warmest month in Tehran, when it usually averages around 90°F. You can expect the least rain in July. The coldest month is January, with temperatures averaging 22°F. The rainiest month is November.
The cheapest airline that flies to Tehran is Qatar Airways.

Traveling from Chicago to Tehran: what you need to know

  • Chicago is home to two main airports where you can kick off your travels. Explore your options for reserving a flight from Chicago to Tehran departing from Chicago O'Hare International Airport (ORD) or Chicago Midway Airport (MDW).

  • Hop off the plane at Imam Khomeini International Airport (IKA), the major arrival point in Tehran.

  • Tehran is nine hours 30 minutes ahead of Chicago and is in the UTC+3:30 timezone.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your Chicago to Tehran flight.

  • During popular months such as July, you'll want to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're traveling during peak periods in general.

How to find the cheapest flights from Chicago to Tehran

  • Booking ahead of time is often the key to finding a cheap Chicago to Tehran flight. Prices tend to rise as demand increases, so the nearer you get to departure, the more it could cost you.

  • If you're willing to be flexible with your trip dates, try using the 'Whole month' tool. It'll give you the lowest price across each month when searching for your plane ticket from Chicago to Tehran.

  • Save time looking for cheap flights from Chicago to Tehran by setting up a Price Alert. You'll get an email or notification through the app when a new discounted fare appears.

  • Tailor your trip using filters. Choose your departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' Chicago to Tehran flights.

Flying from Chicago

Chicago O'Hare International Airport (ORD)

  • We make it easy to find a Chicago to Tehran flight with a stopover. To see all the options leaving from Chicago O'Hare International Airport, deselect 'Direct flights only.' Next, choose a flight with a stop long enough to see the sights of the city of your choice. Some popular stopovers include:

    • Istanbul Airport (IST)

    • Frankfurt am Main Airport (FRA)

    • Hamad International Airport (DOH)

  • Located around 16 miles from central Chicago, ORD can be reached in about 30 minutes by car (depending on traffic). The journey by public transport takes roughly 45 minutes.

  • Need a convenient hotel near Chicago O'Hare International Airport? If you're catching an early flight from Chicago to Tehran, these stays will put you moments from your departure lounge:

  • 70% of flights departing from Chicago O'Hare International Airport land at their destination on schedule.

  • ORD is located at 10000 West O'Hare.

Chicago Midway Airport (MDW)

  • Using public transport, you can travel from central Chicago to MDW in around 30 minutes. The airport is roughly 9 miles away. Driving will take you about 25 minutes.

  • Get your vacation started early with an additional night away from home. Before catching your flight from Chicago to Tehran, kick back in one of these hotels close to Chicago Midway Airport:

  • Chicago Midway Airport has an on-time performance of 76%. This figure sheds light on how often flights that depart from this airport land on time.

  • You'll find MDW at 5700 South Cicero.

Arriving in Tehran

Mehrabad International Airport (THR)

  • Mehrabad International Airport (THR) is approximately 1 mile from the center of Tehran. If you're catching a cab or a ride-share, the drive takes roughly 25 minutes.

  • Getting there by public transport will take you roughly 45 minutes.

Imam Khomeini International Airport (IKA)

  • As soon as your flight from Chicago to Tehran has hit the runway, you can get to the city center in around 1 hour 5 minutes by car. Central Tehran is roughly 25 miles from Imam Khomeini International Airport (IKA).

  • The journey will take approximately 1 hour 30 minutes on public transport.

Best time to go to Tehran

  • It's time to figure out your travel dates for your flight from Chicago to Tehran. November is the most popular month to travel to Tehran. If you want a quieter atmosphere, go in March.

  • The warmest month in Tehran is July, with temperatures ranging between 73ºF and 100ºF. Lock in your Chicago to Tehran ticket then if you enjoy this type of weather.

  • Look for cheap flights from Chicago to Tehran in January if you like traveling in cooler conditions. Temperatures are at their lowest then, ranging between 21ºF and 50ºF on average.

More about Tehran

  • Once you've booked your flight from Chicago to Tehran, choose a hotel that puts you where you want to be. Make one of these accommodation options your base for exploring Tehran:

  • There are so many things to do and see in this city it can be tricky to work out where to start. Golestan Palace, National Museum of Iran and Tehran Museum of Contemporary Art are highlights which should feature on every Tehran itinerary.

Explore more of Iran

  • You've visited Tehran, now it's time to explore other parts of Iran. Journey around 210 miles south to Isfahan to tick off its leading attractions. From Sheikh Lotfollah Mosque to Jame Abbasi Mosque and Shah Square, you'll have a packed itinerary ahead.

  • If you're interested in discovering another side of Iran, head for Karaj, roughly 20 miles northwest of Tehran. Shams Palace, Kosar Park and Dowlat Abad Park are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.