Cheap flights from Chicago O'Hare Intl Airport to Phnom Penh from $515
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Phnom Penh departing on 7/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Qatar Airways flights from Chicago O'Hare Intl Airport to Phnom Penh
Our best Qatar Airways deals on Chicago O'Hare Intl Airport to Phnom Penh flight tickets
Cathay Pacific flights from Chicago O'Hare Intl Airport to Phnom Penh
Our best Cathay Pacific deals on Chicago O'Hare Intl Airport to Phnom Penh flight tickets
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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Phnom Penh
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Phnom Penh?
In general, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,063. If you aren’t able to travel to Phnom Penh during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,092.
What is the cheapest day to depart on your flight to Phnom Penh?
The cheapest day to depart from Chicago O'Hare Intl Airport to Phnom Penh is on a Monday. Travelers who choose to depart for Phnom Penh on a Monday will often find tickets for as low as $1,190. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Phnom Penh for around $1,371.
What is the cheapest time of day to depart on your flight to Phnom Penh?
According to our data, the cheapest time of day to fly to Phnom Penh is at noon. momondo users have found flights departing from Chicago O'Hare Intl Airport to Phnom Penh at noon for as low as $948. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Phnom Penh are more costly in the afternoon, with an average ticket price of $1,464. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Phnom Penh?
You are more likely to see cheaper flights to Phnom Penh from Chicago O'Hare Intl Airport when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,327 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Chicago O'Hare Intl Airport for as low as $978 on momondo.
What is the cheapest airline that flies from Chicago O'Hare Intl to Phnom Penh Pochentong?
Cathay Pacific, Korean Air, and Etihad Airways are the most popular carriers operating from Chicago O'Hare Intl to Phnom Penh Pochentong
What airlines fly to Phnom Penh?
EVA Air, Korean Air and Cathay Pacific are the top three most popular airlines that fly to Phnom Penh from Chicago O'Hare Intl Airport according to our data. EVA Air is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Phnom Penh. Keep in mind that there are 3 different airlines that fly to Phnom Penh on a routine basis, so you have a few additional options to choose from.
When to book flights from Chicago O'Hare Intl Airport to Phnom Penh
Cheap Chicago O'Hare Intl Airport to Phnom Penh (ORD to PNH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Phnom Penh
How far is Chicago O'Hare Intl to Phnom Penh Pochentong by plane?
Chicago O'Hare Intl and Phnom Penh Pochentong are 8642.7 mi apart from one another. By plane, this route typically takes 21h 40m.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport?
Prices for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport?
As of June 2025, there are 3 operators available to choose from for flights from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Phnom Penh Pochentong Airport.
What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?
The travel and health documents you'll need for your trip to Phnom Penh Pochentong Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phnom Penh Pochentong Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Chicago O'Hare Intl Airport to Phnom Penh?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago O'Hare Intl Airport to Phnom Penh is EVA Air (61% of total bookings). The next most popular airlines are Korean Air (32%) and Cathay Pacific (6%).
Best airlines flying from Chicago O'Hare Intl Airport to Phnom Penh
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Phnom Penh with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $733 | Free Cancellation | Rating 7.5 892 reviews | |||
| PriceFrom $847 | Free Cancellation | Rating 8.4 1,090 reviews | |||
| PriceFrom $1,065 | Free Cancellation | Rating 8.4 1,204 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Phnom Penh?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Phnom Penh. momondo saves you time and could save you money on your trip.
Can I find flights from Chicago to Phnom Penh with flexible booking policies on momondo?
Yes. All flights to Phnom Penh from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Chicago to Phnom Penh?
Once you have performed a search for Chicago to Phnom Penh flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Chicago to Phnom Penh right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Phnom Penh, momondo offers a useful price alert feature which will track prices for flights to Phnom Penh from Chicago and alert you when they change.