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ORD - KTI

$426 Find Cheap Flights from Chicago to Phnom Penh - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$791
Typical prices: $1,077-$1,461
Etihad Airways
Sat 3/3Sun 3/25
ORD - KTI • 1 stop
Cheapest one-way
$426
Typical prices: $640-$929
Etihad Airways
Sat 2/3
ORD - KTI • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Chicago O'Hare Intl Airport and Phnom Penh. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 13% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Incheon Intl (ICN)
Cheapest • Avg $957 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 21h 28m (one-way)
Insights
Insights
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We hope you love your trip to Phnom Penh!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Phnom Penh

Wed, Mar 3 - Thu, Mar 25
Etihad Airways Logo
1:15 pm - 6:40 amORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
28h 25m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
8:15 am - 8:35 amKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
36h 20m1 stop Abu Dhabi Zayed Intl
$791Etihad Airways
Mon, Feb 1 - Wed, Feb 10
Etihad Airways Logo
1:15 pm - 6:40 amORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
28h 25m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
8:15 am - 7:35 amKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
36h 20m1 stop Abu Dhabi Zayed Intl
$850Etihad Airways
Mon, Feb 15 - Thu, Feb 25
Multiple Airlines Logo
1:15 pm - 6:40 amORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
28h 25m1 stop Abu Dhabi Zayed Intl
Multiple Airlines Logo
1:30 am - 4:55 pmKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
28h 25m1 stop Manila Ninoy Aquino Intl
$893Multiple Airlines
Wed, Mar 17 - Mon, Mar 29
Cathay Pacific Logo
3:10 pm - 10:25 amORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
31h 15m1 stop Hong Kong Intl
Cathay Pacific Logo
11:25 am - 1:55 pmKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
38h 30m1 stop Hong Kong Intl
$909Cathay Pacific
Tue, Mar 23 - Mon, Mar 29
Cathay Pacific Logo
3:10 pm - 10:25 amORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
31h 15m1 stop Hong Kong Intl
Cathay Pacific Logo
11:25 am - 1:55 pmKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
38h 30m1 stop Hong Kong Intl
$909Cathay Pacific
Tue, Jan 12 - Mon, May 17
Multiple Airlines Logo
4:25 pm - 8:45 amORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
27h 20m2 stops Tokyo Haneda Bangkok Suvarnabhumi
Multiple Airlines Logo
2:10 pm - 8:40 amKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
30h 30m2 stops Ho Chi Minh City Tokyo Haneda
$930Multiple Airlines
Tue, Jan 19 - Wed, Jan 27
Korean Air Logo
11:10 am - 10:40 pmORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
22h 30m1 stop Incheon Intl
Korean Air Logo
12:15 am - 8:30 amKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
21h 15m1 stop Incheon Intl
$982Korean Air
Thu, Mar 18 - Wed, Mar 24
Korean Air Logo
12:10 pm - 10:40 pmORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
22h 30m1 stop Incheon Intl
Korean Air Logo
12:15 am - 9:30 amKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
21h 15m1 stop Incheon Intl
$982Korean Air
Mon, Jan 18 - Mon, Jan 25
Delta Logo
6:30 am - 10:45 pmORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
27h 15m2 stops Seattle/Tacoma Intl Incheon Intl
Delta Logo
12:10 am - 10:20 pmKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
35h 10m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$993Delta
Tue, Jan 19 - Mon, Jan 25
Delta Logo
6:00 am - 10:45 pmORD  Chicago O'Hare Intl-KTI Phnom Penh Techo Intl
27h 45m2 stops Minneapolis St Paul Incheon Intl
Delta Logo
12:10 am - 10:20 pmKTI  Phnom Penh Techo Intl-ORD Chicago O'Hare Intl
35h 10m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$993Delta
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Phnom Penh flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh typically range from $1,077 to $1,461. The lowest price found in the past 5 days was $791, on Etihad Airways.

What's the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Phnom Penh?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Phnom Penh. It’s 10% cheaper than the average day, while Monday is the most expensive, with prices 22% higher.

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

•February is the cheapest month to fly from Chicago O'Hare Intl Airport to Phnom Penh at $1,074 round-trip.
•July ($1,646) and June ($1,598) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 53% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Chicago O'Hare Intl Airport to Phnom Penh the cheapest?

Flights from Chicago O'Hare Intl Airport to Phnom Penh are cheapest 18 weeks before departure. Booking in this window typically costs about 40% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Chicago O'Hare Intl Airport to Phnom Penh flights

Low season

September

Cheapest flight

$426
Beat the crowds with an average 46% drop in travelers.
One-way flight from Chicago O'Hare Intl Airport 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

Your Chicago O'Hare Intl Airport to Phnom Penh flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Phnom Penh?

    Three cabin classes are available on flights from Chicago O'Hare Intl Airport to Phnom Penh:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Chicago O'Hare Intl Airport to Phnom Penh?

    A nonstop flight from Chicago O'Hare Intl Airport to Phnom Penh takes 00m, covering 8,656 miles.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Phnom Penh?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Chicago O'Hare Intl Airport to Phnom Penh flight?

    Round-trip flights from Chicago O'Hare Intl Airport to Phnom Penh range from $1,077 to $1,461, with an average of $1,231 over the past 12 months. Anything below $1,077 counts as a good deal.

  • How expensive are last-minute Chicago O'Hare Intl Airport to Phnom Penh flights?

    Last-minute fares on this route (booked within two weeks of departure) run 17% above the $1,231 route average. Book 18 weeks before departure for the lowest fares.

  • Have flight prices from Chicago O'Hare Intl Airport to Phnom Penh changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $791 to $5,876. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Chicago O'Hare Intl Airport to Phnom Penh looking right now?

    One-way fares from Chicago O'Hare Intl Airport to Phnom Penh are currently lower than usual. Average one-way flight prices are about $688, which is 6% below the typical average for this route.

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Phnom Penh?

    Flights from Chicago O'Hare Intl Airport to Phnom Penh usually depart from Chicago O'Hare Intl (ORD) and arrive at Phnom Penh Techo Intl (KTI).

  • Which airports do connecting flights from Chicago O'Hare Intl Airport to Phnom Penh pass through?

    One-stop flights from Chicago O'Hare Intl Airport to Phnom Penh most commonly connect through:

    • Taipei City Taiwan Taoyuan Intl (TPE) - 69% of one-stop connections
    • Incheon Intl (ICN) - 19% of one-stop connections
    • Hong Kong Intl (HKG) - 8% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Phnom Penh?

    Yes. Flexible dates can save you up to 27% on flights from Chicago O'Hare Intl Airport to Phnom Penh. Sunday is the cheapest departure day at $1,108 round-trip on average, while Monday is the most expensive at $1,507, a difference of $399.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Chicago O'Hare Intl Airport to Phnom Penh?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 21h 28m, compared with 22h 01m via Incheon Intl (ICN) and 28h 10m via Abu Dhabi Zayed Intl (AUH).

  • What is the time difference between Chicago O'Hare Intl Airport and Phnom Penh?

    Phnom Penh is 12 hours ahead of Chicago O'Hare Intl Airport (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Chicago O'Hare Intl Airport to Phnom Penh flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average $1,108, about $399 less than Monday fares (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 40% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chicago O'Hare Intl Airport to Phnom Penh trip for February. Fares historically average $1,074 round-trip in that month - typically $572 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Chicago to Phnom Penh

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