ORD - PNH

$395 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 8/19. 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.
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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

 
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.

Recent round-trip flight deals from Chicago to Phnom Penh

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Phnom Penh.
Discover the best prices for you by selecting your travel dates on KAYAK.
Cathay Pacific Logo
4:00 pm - 10:15 amORD-PNH
30h 15m1 stop
Cathay Pacific Logo
6:30 pm - 2:25 pmPNH-ORD
31h 55m1 stop
$847Cathay Pacific
Find Deal
Fri, Aug 29 - Sun, Sep 7
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
$859Korean Air
Find Deal
Sat, Aug 30 - Sat, Sep 20
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
$914Cathay Pacific
Find Deal
Wed, Oct 15 - Fri, Oct 24
Korean Air Logo
9:30 am - 10:10 pmORD-PNH
24h 40m2 stops
Korean Air Logo
11:30 pm - 9:30 amPNH-ORD
22h 00m1 stop
$1,045Korean Air
Find Deal
Wed, Oct 15 - Fri, Oct 24
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
$1,106EVA Air
Find Deal
Wed, Sep 3 - Fri, Sep 19
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
$1,139EVA Air
Find Deal
Fri, Sep 5 - Sun, Sep 28
Qatar Airways Logo
7:40 pm - 4:15 pmORD-PNH
32h 35m2 stops
Qatar Airways Logo
5:10 pm - 2:30 pmPNH-ORD
34h 20m2 stops
$1,174Qatar Airways
Find Deal
Sun, Oct 19 - Wed, Feb 25
Qatar Airways Logo
7:40 pm - 4:15 pmORD-PNH
32h 35m2 stops
Qatar Airways Logo
5:10 pm - 3:30 pmPNH-ORD
34h 20m2 stops
$1,205Qatar Airways
Find Deal
Fri, Oct 17 - Sun, Oct 26
Singapore Airlines Logo
9:00 pm - 8:40 amORD-PNH
47h 40m2 stops
Singapore Airlines Logo
6:55 pm - 8:54 pmPNH-ORD
37h 59m3 stops
$1,233Singapore Airlines
Find Deal
Mon, Oct 6 - Mon, Oct 20
Singapore Airlines Logo
1:35 pm - 8:40 amORD-PNH
31h 05m3 stops
Singapore Airlines Logo
6:55 pm - 5:50 pmPNH-ORD
34h 55m2 stops
$1,344Singapore Airlines
Find Deal
Wed, Oct 15 - Fri, Oct 24
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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.

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 $1,066 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,842 and $1,837 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 24 weeks before departure.

Good to know

Low seasonAugust
High seasonJanuary
Cheapest flight$395
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 12% lower on average.
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 $395 for a one-way ticket and $847 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?

    oneworld, Star Alliance, and SkyTeam 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 $1,256 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 $1,274 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.

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 1186 reviews
8.3Comfort
8.4Boarding
8.0Entertainment
8.1Food
8.6Crew
Airline reviews

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

8.0 ExcellentAnonymous, Mar 2025TPE - IAH
Read more EVA Air reviews

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.

Boarding was good. It will be nice to have beer anytime. I asked for a beer at tea time & I was refused. Quite disappointed

It was a good flight. I would highly recommend it to family and friends.

The employees were professional and efficient. I consider myself a traveler but have trouble with the international fare served on airplanes. I admit Americans buy their food in the supermarket and we typically don’t eat the ligaments and cartilage. I know that is whiny but as I age, I dislike it more. At least things weren’t covered in cheese. The desserts are terrible! My neighbor didn’t eat her bread so I asked if I could have it. First time for everything but had been traveling a total of 27 hours and was hungry.

Amazing crew, excellent food, business class seats seem a bit dated but are super comfy even for a very tall person. If continuing onto Taipei, the stopover in Bangkok is a bit annoying (queue at security) though the lounge is decent.

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.

Best service I’ve ever had Flight attendants are nicely dressed and look very professional

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Always have great flight experience on Korean Air. Glad to have been able to book this on Kayak/Under Pricer this year!!

Need to have space for Cary on when traveler boarding any zone

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

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!

So so, crew was overly professional and lacks human touch. Equipment is very old, especially the HKG-PVG CX366 flight. That plane along with its decor must have twenty years of history, or at least I had that impression.

I have a Peanut Allergy and the Steward staff were very accommodating in ensuring my safety as my allergy is life threatening. Very professional and so vested in their profession.

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

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

Overall, it was ok. However, the food was very sub-par.

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

When comes to Taiwan airlines China airlines is the best rest are pure trash

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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