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Siem Reap

$1,037+ Cheap flights from Philadelphia (PHL) to Siem Reap, Cambodia (SAI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAI
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap flight deals from Philadelphia to Siem Reap

Cheapest flights from Philadelphia to Siem Reap
Explore the most affordable flight options available from Philadelphia to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.

This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:30 pm
PHL
-
SAI
2 stops24h 45m
Multiple Airlines
Sat 11/141:20 pm
SAI
-
PHL
2 stops37h 20m
Multiple Airlines
Deal found 7/25$1,343
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:30 pm
PHL
-
SAI
2 stops34h 15m
Multiple Airlines
Sat 11/2110:00 am
SAI
-
PHL
2 stops40h 40m
Multiple Airlines
Deal found 7/25$1,350
This oojo deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:30 pm
PHL
-
SAI
2 stops33h 50m
Multiple Airlines
Fri 9/119:45 pm
SAI
-
PHL
2 stops51h 45m
Multiple Airlines
Deal found 7/21$1,357
This Ovago deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:30 am
PHL
-
SAI
3 stops38h 10m
Etihad Airways
Sat 11/141:20 pm
SAI
-
PHL
3 stops40h 12m
Etihad Airways
Deal found 7/25$1,733

Find flight deals from Philadelphia to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,343
(oojo)

One-way from

$1,037
(Kiwi.com)
Provider with most accurate pricing for Philadelphia-Siem Reap–Angkor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Siem Reap–Angkor Intl flights.
Search Deals
From Philadelphia to Siem Reap–Angkor Intl
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One-way flight from Philadelphia to Siem Reap–Angkor Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 26, 2026.
Use the filters below to find and compare flights from Philadelphia to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

8:30 pm-9:15 am

2 stops24h 45m

Siem Reap–Angkor Intl

Sat 11/14

1:20 pm-2:40 pm

2 stops37h 20m

$1,343

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Fri 9/4

9:30 pm-2:20 pm

3 stops53h 50m

Siem Reap–Angkor Intl

Fri 9/11

3:10 pm-2:30 pm

3 stops34h 20m

$1,585

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

10:30 am-12:40 pm

3 stops38h 10m

Siem Reap–Angkor Intl

Sat 11/14

1:20 pm-5:32 pm

3 stops40h 12m

$1,774

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

12:40 pm-9:10 pm

3 stops44h 30m

Siem Reap–Angkor Intl

Sat 11/21

11:50 pm-9:34 pm

3 stops33h 44m

$2,003

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Thu 11/12

8:30 pm-4:10 pm

3 stops31h 40m

Siem Reap–Angkor Intl

Sat 11/21

1:20 pm-2:40 pm

2 stops37h 20m

$2,537
Cheapest one-way
Quickest one-way

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Fri 7/31

6:23 pm-9:40 am

2 stops52h 17m

$2,216

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Sorted by cheapest first

Compare providers for flights from Philadelphia to Siem Reap

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Siem Reap in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Siem Reap flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Siem Reap flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Siem Reap flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Siem Reap flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Siem Reap flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to Siem Reap?

    For as low as $1,774, Etihad Airways can have you in Siem Reap from Philadelphia in 38h 10m. Airlines will cover a distance of 8751 mi.

  • Can I find deals for flights from Philadelphia to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Siem Reap.

  • Can I find deals for business class flights from Philadelphia to Siem Reap?

    Yes. Cheapflights offers flight deals from Philadelphia to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Philadelphia to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
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