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Flights from Houston to Phnom Penh

Find flight deals from Houston to Phnom Penh for the next 3 months. Book one way flights from $683 or round trip flights from $1,415.

      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Sun, Aug 23 | Qatar Airways
        KTI 5:40 PM
        34h 15m
        1 stop
        IAH 3:55 PM
        Phnom Penh - Houston | Sun, Aug 30 | Qatar Airways
        $1,415 $2,574
        45% off
        45% off
        $2,574 $1,415
      • IAH 1:35 AM
        21h 40m
        1 stop
        KTI 11:15 AM
        Houston - Phnom Penh | Wed, Aug 19 | EVA Air
        KTI 12:35 PM
        22h 15m
        1 stop
        IAH 10:50 PM
        Phnom Penh - Houston | Wed, Aug 26 | EVA Air
        $1,469 $2,574
        43% off
        43% off
        $2,574 $1,469
      • IAH 1:35 AM
        21h 40m
        1 stop
        KTI 11:15 AM
        Houston - Phnom Penh | Sun, Aug 23 | EVA Air
        KTI 12:35 PM
        22h 15m
        1 stop
        IAH 10:50 PM
        Phnom Penh - Houston | Sun, Aug 30 | EVA Air
        $1,537 $2,574
        40% off
        40% off
        $2,574 $1,537
      • IAH 1:35 AM
        21h 40m
        1 stop
        KTI 11:15 AM
        Houston - Phnom Penh | Tue, Aug 11 | EVA Air
        KTI 12:35 PM
        22h 15m
        1 stop
        IAH 10:50 PM
        Phnom Penh - Houston | Tue, Aug 18 | EVA Air
        $1,556
        40% off
        $2,574 $1,556
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Tue, Jul 14 | Qatar Airways
        KTI 5:40 PM
        34h 15m
        1 stop
        IAH 3:55 PM
        Phnom Penh - Houston | Tue, Jul 21 | Qatar Airways
        $1,575
        39% off
        $2,574 $1,575
      • IAH 1:35 AM
        21h 40m
        1 stop
        KTI 11:15 AM
        Houston - Phnom Penh | Sun, Aug 16 | EVA Air
        KTI 12:35 PM
        22h 15m
        1 stop
        IAH 10:50 PM
        Phnom Penh - Houston | Wed, Aug 19 | EVA Air
        $1,589
        38% off
        $2,574 $1,589
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Fri, Aug 7 | Qatar Airways
        KTI 5:40 PM
        34h 15m
        1 stop
        IAH 3:55 PM
        Phnom Penh - Houston | Thu, Aug 13 | Qatar Airways
        $1,685
        35% off
        $2,574 $1,685
      • IAH 1:35 AM
        21h 40m
        1 stop
        KTI 11:15 AM
        Houston - Phnom Penh | Tue, Aug 4 | EVA Air
        KTI 12:35 PM
        22h 15m
        1 stop
        IAH 10:50 PM
        Phnom Penh - Houston | Wed, Aug 12 | EVA Air
        $1,755
        32% off
        $2,574 $1,755
      • IAH 7:35 PM
        33h 5m
        1 stop
        KTI 4:40 PM
        Houston - Phnom Penh | Wed, Aug 19 | Emirates
        KTI 8:45 PM
        32h 5m
        1 stop
        IAH 4:50 PM
        Phnom Penh - Houston | Wed, Aug 26 | Emirates
        $1,797
        30% off
        $2,574 $1,797
      • IAH 7:35 PM
        33h 5m
        1 stop
        KTI 4:40 PM
        Houston - Phnom Penh | Mon, Aug 10 | Emirates
        KTI 8:45 PM
        32h 5m
        1 stop
        IAH 4:50 PM
        Phnom Penh - Houston | Sun, Aug 16 | Emirates
        $1,827
        28% off
        $2,574 $1,827
      • HOU 1:00 PM
        17h 25m
        1 stop
        KTI 2:00 PM
        Houston - Phnom Penh | Tue, Jul 14 | Normal Airline
        KTI 3:00 PM
        6h
        Nonstop
        HOU 4:00 PM
        Phnom Penh - Houston | Thu, Jul 16 | Normal Airline
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        Find more flights
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Mon, Aug 17 | Qatar Airways
        $683 $965
        28% off
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Thu, Jul 16 | Qatar Airways
        $683 $965
        28% off
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Wed, Aug 12 | Qatar Airways
        $683 $965
        28% off
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Thu, Aug 13 | Qatar Airways
        $683
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Sun, Aug 16 | Qatar Airways
        $683
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Tue, Aug 18 | Qatar Airways
        $683
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Wed, Aug 19 | Qatar Airways
        $683
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Thu, Aug 20 | Qatar Airways
        $683
        28% off
        $965 $683
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Wed, Jul 15 | Qatar Airways
        $684
        28% off
        $965 $684
      • IAH 6:15 PM
        34h
        1 stop
        KTI 4:15 PM
        Houston - Phnom Penh | Wed, Jul 22 | Qatar Airways
        $685
        28% off
        $965 $685
      • HOU 1:00 PM
        17h 25m
        1 stop
        KTI 2:00 PM
        Houston - Phnom Penh | Tue, Jul 14 | Normal Airline
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        Find more flights

Displayed flight fares from Houston to Phnom Penh are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Find cheap airlines flights from Houston to Phnom Penh

You can choose from 2 airlines that fly from Houston to Phnom Penh, including EVA Air, Qatar Airways, Qatar Airways has lowest fares on this route.
EVA Air logo EVA Air
Qatar Airways logo Qatar Airways
Airlines are determined based on actual purchased flight tickets from Houston to Phnom Penh according to previous 12 months data from Trip.com.

Flight Info | Houston to Phnom Penh

The distance between Houston and Phnom Penh is approximately 14,950.88 km. Based on Trip.com's data travel demand peaks in December. The off-season for travel is September.

Cheapest one-way flight price$683
Cheapest round-trip ticket price$1,415
Off-season for travelSeptember
Peak season for travelDecember
Flight distance14,950.88 km
Popular airlineEVA Air
Flight statistics for the Houston–Phnom Penh route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Houston to Phnom Penh (HOU-KTI)?

    Based on Trip.com data, Qatar Airways offers one-way fares as low as $683 on Cheapest nonstop routes (e.g. IAH to KTI on Mon, Aug 17), while Qatar Airways offers Cheapest nonstop round-trips from $1,415 departing on Sun, Aug 23 and returning on Sun, Aug 30.
  • At the moment, several airlines serve connecting flights from Houston to Phnom Penh, including: EVA Air Qatar Airways Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to Phnom Penh is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Houston to Phnom Penh, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Aug 17, with one-way flights priced at just $683.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Qatar Airways.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Phnom Penh travel is around December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Houston to Phnom Penh is September, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Houston to Phnom Penh on July 14, 2026 with Qatar Airways, with prices starting at $1,575.
  • You can land at any one of the following hubs in Phnom Penh, with George Bush Intercontinental Airport to Techo International Airport (IAH-KTI) is by far the most common option on this route: Phnom Penh International Airport (PNH) Techo International Airport (KTI).
  • The time difference between Phnom Penh and Houston is 13h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.