$736 Cheap Flights from Phnom Penh (PNH) to Chicago (ORD)

View $736 flight on Sun, May 4, 2025Opens in a new window

Popular airlines from Phnom Penh Intl. Airport (PNH) to Chicago O'Hare Intl. Airport (ORD)

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Find available prices by choosing your travel dates.

Cheap Flights from Phnom Penh to Chicago (PNH-ORD)

Prices were available within the past 7 days and start at $736 for one-way flights and $1,141 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Mon, Oct 6 - Wed, Oct 22
PNH
Phnom Penh
ORD
Chicago
$1,141 Roundtrip, found 1 day ago
$1,141
Roundtrip
found 1 day ago
Select China Airlines flight, departing Mon, Oct 6 from Phnom Penh to Chicago, returning Wed, Oct 22, priced at $1,141 found 1 day ago
Air Canada
Mon, Oct 6 - Wed, Oct 22
PNH
Phnom Penh
ORD
Chicago
$1,187 Roundtrip, found 1 day ago
$1,187
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Oct 6 from Phnom Penh to Chicago, returning Wed, Oct 22, priced at $1,187 found 1 day ago
China Airlines
Sun, May 4 - Thu, Sep 18
PNH
Phnom Penh
ORD
Chicago
$1,195 Roundtrip, found 2 days ago
$1,195
Roundtrip
found 2 days ago
Select China Airlines flight, departing Sun, May 4 from Phnom Penh to Chicago, returning Thu, Sep 18, priced at $1,195 found 2 days ago
China Airlines
Sun, Nov 2 - Sat, Nov 15
PNH
Phnom Penh
ORD
Chicago
$1,202 Roundtrip, found 11 hours ago
$1,202
Roundtrip
found 11 hours ago
Select China Airlines flight, departing Sun, Nov 2 from Phnom Penh to Chicago, returning Sat, Nov 15, priced at $1,202 found 11 hours ago
Air Canada
Fri, Oct 24 - Fri, Nov 21
PNH
Phnom Penh
ORD
Chicago
$1,315 Roundtrip, found 6 days ago
$1,315
Roundtrip
found 6 days ago
Select Air Canada flight, departing Fri, Oct 24 from Phnom Penh to Chicago, returning Fri, Nov 21, priced at $1,315 found 6 days ago
EVA Airways
Sun, Apr 27 - Sat, May 3
PNH
Phnom Penh
ORD
Chicago
$1,388 Roundtrip, found 10 hours ago
$1,388
Roundtrip
found 10 hours ago
Select EVA Airways flight, departing Sun, Apr 27 from Phnom Penh to Chicago, returning Sat, May 3, priced at $1,388 found 10 hours ago
Korean Air
Wed, Oct 8 - Sun, Oct 19
PNH
Phnom Penh
ORD
Chicago
$1,477 Roundtrip, found 1 day ago
$1,477
Roundtrip
found 1 day ago
Select Korean Air flight, departing Wed, Oct 8 from Phnom Penh to Chicago, returning Sun, Oct 19, priced at $1,477 found 1 day ago
Delta
Mon, Oct 6 - Wed, Oct 22
PNH
Phnom Penh
ORD
Chicago
$1,488 Roundtrip, found 1 day ago
$1,488
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Oct 6 from Phnom Penh to Chicago, returning Wed, Oct 22, priced at $1,488 found 1 day ago
Turkish Airlines
Mon, May 12 - Mon, Jun 9
PNH
Phnom Penh
ORD
Chicago
$1,501 Roundtrip, found 9 hours ago
$1,501
Roundtrip
found 9 hours ago
Select Turkish Airlines flight, departing Mon, May 12 from Phnom Penh to Chicago, returning Mon, Jun 9, priced at $1,501 found 9 hours ago
Cathay Pacific
Sun, Nov 2 - Sat, Nov 15
PNH
Phnom Penh
ORD
Chicago
$1,527 Roundtrip, found 11 hours ago
$1,527
Roundtrip
found 11 hours ago
Select Cathay Pacific flight, departing Sun, Nov 2 from Phnom Penh to Chicago, returning Sat, Nov 15, priced at $1,527 found 11 hours ago
Flights from Phnom Penh (PNH) to Chicago (ORD)
Origin airport
Phnom Penh Intl.
Destination airport
O'Hare Intl.
Airlines serving
Austrian Airlines, British Airways, Cathay Pacific, China Southern Airlines, Delta, EVA Airways, Emirates, Etihad Airways, Finnair, KLM, Korean Air, Lufthansa, Qatar Airways, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$1,140
Distance
8650 mi

Phnom Penh to Chicago Flights

The cheapest times to fly from Phnom Penh to Chicago

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 Phnom Penh to Chicago are during the month of October. You can find some of the cheapest flights from Phnom Penh to Chicago with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Phnom Penh to Chicago

Sunday is one of the best days to book for cheap flights from Phnom Penh to Chicago: 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 Phnom Penh to Chicago

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 Phnom Penh to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $736 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 Phnom Penh to Chicago 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 Phnom Penh to Chicago 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.

Frequently asked questions

How much does a flight from Phnom Penh Intl. Airport (PNH) to O'Hare Intl. Airport (ORD) cost?
Discover the latest flight deals from PNH to ORD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PNH to ORD?
The cheapest flights from PNH to ORD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PNH to ORD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from PNH to ORD. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Phnom Penh Intl. Airport (PNH) to O'Hare Intl. Airport (ORD)?
You’ll need to book a flight with a layover if you’re traveling from Phnom Penh Intl. Airport (PNH) to O’Hare Intl. Airport (ORD). Direct flights don’t operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from PNH to ORD?
Usually you’ll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Phnom Penh Intl. Airport (PNH) to O'Hare Intl. Airport (ORD)?
Opt for a flight from Phnom Penh Intl. Airport (PNH) to O’Hare Intl. Airport (ORD) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Phnom Penh Intl. Airport (PNH) to O'Hare Intl. Airport (ORD) last-minute?
Last-minute fares from PNH to ORD are generally more expensive. To lock in the lowest prices, start searching for flights well ahead of time. That said, if you can play around with your travel dates, you may score a cheap fare right before your trip.
Is it cheaper to book a PNH to ORD flight and hotel package?
Compared with arranging hotels and flights separately, booking a PNH to ORD flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one easy place will take the stress out of planning your trip. Just pick your flights and choose from our wide range of stays, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Phnom Penh Intl. Airport (PNH) to O'Hare Intl. Airport (ORD)?
If you reserved your PNH to ORD flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.