Cheap Flights from Chicago to Phnom Penh from $901 Roundtrip

Flight deals from Chicago to Phnom Penh

Looking for a cheap last-minute deal or the best roundtrip flight from Chicago to Phnom Penh? If you want to travel next month, roundtrip fares start from $1,670. Find the lowest prices on one-way and roundtrip tickets right here.

Phnom Penh.$901 per passenger.Departing Tue, Aug 25, returning Tue, Sep 8.Round-trip flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departing from Chicago O'Hare International on Tue, Aug 25, arriving in Techo International.Inbound indirect flight with Cathay Pacific, departing from Techo International on Tue, Sep 8, arriving in Chicago O'Hare International.Price includes taxes and charges.From $901, select.

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Flying from Chicago to Phnom Penh

Arm yourself with these facts on the fly.

Cheapest flight found	$901
Cheapest month to fly	August
Cheapest airport to fly from	Chicago O'Hare International

How to find cheap flights from Chicago to Phnom Penh

We've compared the best online travel agents and flight providers on the Internet to find the cheapest plane tickets from Chicago to Phnom Penh. Other savvy travelers recently found round-trip flights from $901 and one-way tickets from $550. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Chicago O'Hare International into Techo International

At the moment, the lowest-priced flight tickets to Phnom Penh are from Chicago O'Hare International Airport to Techo International Airport.

Fly in August

We crunched the flight calendar and found the cheapest time to fly from Chicago to Phnom Penh is currently August.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Chicago to anywhere you choose in Phnom Penh.

Watch as flight prices go up and down

With Price Alerts, we'll let you know when flight prices from Chicago to Phnom Penh go up or down so you can book when the time is just right.

Relax – these are fee-free plane tickets

With us, there are no added fees – the Phnom Penh to Phnom Penh flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Chicago to Phnom Penh flight price?

We looked at all of the upcoming round-trip flights from Chicago to Phnom Penh we could find over the next 12 months. It looks like $901 is the best price. This is good, compared to the average Phnom Penh ticket price of $901.

What is the cheapest month to fly from Chicago to Phnom Penh?

The cheapest month to fly from Chicago to Phnom Penh is currently August.

On which upcoming date is it cheapest to fly from Chicago to Phnom Penh?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Phnom Penh on Tuesday, August 25, 2026.

Are there any direct flights from Chicago to Phnom Penh?

Currently, there aren't any direct flights from Chicago to Phnom Penh, but you can still fly with a stopover.

If I'm flying from Chicago, where in Phnom Penh is cheapest to fly to?

If you're flying from Chicago, the cheapest city in Phnom Penh to fly into is Phnom Penh. The cheapest airport serving Phnom Penh at the moment is Techo International.