ORD - PNH

$458 Find Cheap Flights from Chicago to Phnom Penh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Phnom Penh departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Phnom Penh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Phnom Penh, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Phnom Penh, as well as popular online travel agencies
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Cheap Flights from Chicago to Phnom Penh (ORD-PNH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Phnom Penh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Phnom Penh

Fri, Aug 29 - Sun, Sep 7
Cathay Pacific Logo
4:00 pm - 10:15 amORD-PNH
30h 15m1 stop
Cathay Pacific Logo
11:25 am - 2:25 pmPNH-ORD
39h 00m1 stop
$775Cathay Pacific
Find Deal
Thu, Nov 6 - Tue, Nov 18
 Logo
7:35 pm - 10:55 pmORD-PNH
38h 20m2 stops
 Logo
9:35 am - 6:02 amPNH-ORD
33h 27m2 stops
Thu, Nov 6 - Tue, Nov 18
Korean Air Logo
11:05 am - 10:25 pmORD-PNH
22h 20m1 stop
Korean Air Logo
11:45 pm - 8:30 amPNH-ORD
21h 45m1 stop
$946Korean Air
Find Deal
Mon, Nov 10 - Sun, Nov 16
Korean Air Logo
11:05 am - 10:25 pmORD-PNH
22h 20m1 stop
Korean Air Logo
11:45 pm - 8:30 amPNH-ORD
21h 45m1 stop
$961Korean Air
Find Deal
Tue, Aug 19 - Thu, Oct 16
Korean Air Logo
12:30 pm - 10:10 pmORD-PNH
21h 40m1 stop
Korean Air Logo
11:30 pm - 9:30 amPNH-ORD
22h 00m1 stop
$993Korean Air
Find Deal
Mon, Aug 18 - Thu, Oct 16
EVA Air Logo
12:30 am - 11:15 amORD-PNH
22h 45m1 stop
EVA Air Logo
12:35 pm - 8:45 pmPNH-ORD
20h 10m1 stop
$1,065EVA Air
Find Deal
Wed, Sep 10 - Sat, Sep 20
EVA Air Logo
12:30 am - 11:15 amORD-PNH
22h 45m1 stop
EVA Air Logo
12:35 pm - 8:45 pmPNH-ORD
20h 10m1 stop
$1,081EVA Air
Find Deal
Thu, Sep 11 - Sat, Sep 20
Asiana Airlines Logo
8:00 am - 10:55 pmORD-PNH
26h 55m2 stops
Asiana Airlines Logo
11:55 pm - 12:03 amPNH-ORD
36h 08m2 stops
$1,087Asiana Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 16
Asiana Airlines Logo
6:00 am - 10:55 pmORD-PNH
51h 55m2 stops
Asiana Airlines Logo
11:55 pm - 6:22 amPNH-ORD
43h 27m2 stops
$1,089Asiana Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Philippine Airlines Logo
9:50 am - 12:15 amORD-PNH
50h 25m2 stops
Philippine Airlines Logo
1:15 am - 8:57 pmPNH-ORD
31h 42m2 stops
$1,135Philippine Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Chicago to Phnom Penh flights

Get data-powered insights and trends into flights from Chicago to Phnom Penh to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Phnom Penh?

What’s the cheapest day of the week to fly from Chicago to Phnom Penh?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh clicked on KAYAK for each day over the last 12 months.

For Chicago to Phnom Penh, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Phnom Penh back to Chicago, the best deals are generally found on Wednesday, with Sunday being the most expensive.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Phnom Penh?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Phnom Penh is September, where tickets cost $1,029 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,849 and $1,808 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Phnom Penh?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Phnom Penh, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$458
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly with an average 38% increase in price.
Flight from Chicago to Phnom Penh

When to book flights from Chicago to Phnom Penh

Are your dates flexible? Find out the best times to travel from Chicago to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Phnom Penh flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Phnom Penh?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Phnom Penh was $458 for a one-way ticket and $775 for a round-trip.

  • Do I need a passport to fly between Chicago and Phnom Penh?

    Yes

  • Which airports will I be using when flying from Chicago to Phnom Penh?

    When flying out of Chicago you will be using Chicago O'Hare Intl. You will be landing at Phnom Penh, also known as Phnom Penh Pochentong.

  • Which aircraft models fly most regularly from Chicago to Phnom Penh?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Phnom Penh?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Chicago and Phnom Penh, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Phnom Penh from Chicago?

    Taipei City is the most popular layover city among KAYAK users traveling from Chicago to Phnom Penh.

  • Which is the best airline for flights from Chicago to Phnom Penh, EVA Air or Korean Air?

    The two airlines most popular with KAYAK users for flights from Chicago to Phnom Penh are EVA Air and Korean Air. With an average price for the route of $1,297 and an overall rating of 8.4, EVA Air is the most popular choice. Korean Air is also a great choice for the route, with an average price of $1,171 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Chicago to Phnom Penh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Phnom Penh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Phnom Penh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Phnom Penh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phnom Penh with an airline and back to Chicago with another airline. Booking your flights between Chicago and PNH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Phnom Penh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phnom Penh from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Chicago to Phnom Penh

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Phnom Penh. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Phnom Penh? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
EVA AirOverall score based on 1222 reviews
8.3Comfort
8.4Boarding
8.1Food
8.6Crew
8.0Entertainment
Airline reviews

Flight Attendants could have been nicer and food portions could be bigger.

8.0 ExcellentKaye, Jul 2025JFK - TPE
Read more EVA Air reviews

Flight Attendants could have been nicer and food portions could be bigger.

Great experience, comfort and food is delicious. Always great service and one time

Excellent service from check in to boarding the crew is so pleasant to asked

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

basic and only minimum of service, they offer nothing special

The app was awful. No accurate info. Paying for internet is a negative (Delta is free). The crew was very nice for the most part although you are not guaranteed to get good service. Some crew would ignore requests for things as simple as a cup of water if you were sleeping when the first serving was made. Food was great. Male crew member was exceptionally kind and responsive.

I think the business class service has declined as compared to how it was years ago. I am not a fan of the hello kitty graphics. Boarding was long and not well organized. The lounge in Taipei was not very good, the food was very poor. Did not live up to many international business class lounges.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

Better. I took an aisle seat this time. Although the overheard compartment above the seat ahead of me kept opening up during flight.

They ran out of food and were offering random food to passengers.

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

I had high expectations but met with a below average experience. I hope the Airline will take a notice and improve.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Everything was fine and I have no complaints or things to note.

The flight was delayed for 30 mins. The overall experience was good.

The economy seats are much indeed roomier. Meals needs improvement.

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Everything you need to know for your flight from Chicago to Phnom Penh

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