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Siem Reap

$1,319+ Cheap flights from Philadelphia (PHL) to Siem Reap, Cambodia (SAI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAI
Sep 9 — Sep 161
Wed 9/9
Wed 9/16
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 August 10, 2026.

This FlightHub deal was found by Cheapflights users on 8/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:30 pm -
2 stops27h 45m
Tue 10/207:35 pm -
2 stops30h 30m
Deal found 8/5$1,319
This oojo deal was found by Cheapflights users on 8/5. 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 -
2 stops34h 15m
Sat 11/147:25 pm -
2 stops31h 15m
Deal found 8/5$1,337
This oojo deal was found by Cheapflights users on 8/5. 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 10/99:30 pm -
2 stops27h 45m
Tue 10/209:40 am -
2 stops40h 25m
Deal found 8/5$1,355
This oojo deal was found by Cheapflights users on 8/6. 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 -
2 stops34h 15m
Sat 11/217:25 pm -
2 stops31h 15m
Deal found 8/6$1,382
This oojo deal was found by Cheapflights users on 8/5. 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.
Sat 11/78:30 pm -
2 stops24h 45m
Sun 11/157:25 pm -
2 stops31h 15m
Deal found 8/5$1,389
This Qatar Airways deal was found by Cheapflights users on 8/6. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:30 pm -
2 stops27h 45m
Thu 9/107:35 pm -
2 stops29h 55m
Deal found 8/6$1,432
This Qatar Airways deal was found by Cheapflights users on 8/6. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:30 pm -
2 stops27h 45m
Tue 9/89:40 am -
2 stops63h 50m
Deal found 8/6$1,469
This Qatar Airways deal was found by Cheapflights users on 8/7. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:30 pm -
2 stops24h 45m
Sat 11/217:25 pm -
2 stops31h 15m
Deal found 8/7$1,476

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 August 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,337
(oojo)
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.
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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 August 10, 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

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Thu 10/8

9:30 pm-4:25 pm

3 stops31h 55m

Siem Reap–Angkor Intl

Tue 10/20

7:35 pm-3:05 pm

2 stops30h 30m

$1,321

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Wed 11/4

8:30 pm-6:45 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Sat 11/14

1:20 pm-2:40 pm

2 stops37h 20m

$1,356
Quickest round-trip

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sat 11/7

8:30 pm-9:15 am

2 stops24h 45m

Siem Reap–Angkor Intl

Sat 11/14

7:25 pm-2:40 pm

2 stops31h 15m

$1,389

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sat 8/29

9:30 pm-12:15 pm

2 stops27h 45m

Siem Reap–Angkor Intl

Wed 9/9

7:35 pm-2:30 pm

2 stops29h 55m

$1,432

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sat 8/29

9:30 pm-12:15 pm

2 stops27h 45m

Siem Reap–Angkor Intl

Tue 9/8

9:40 am-2:30 pm

2 stops63h 50m

$1,469

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Thu 11/12

8:30 pm-6:45 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Sat 11/21

7:25 pm-2:40 pm

2 stops31h 15m

$1,476

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sat 8/29

9:30 pm-9:00 am

2 stops24h 30m

Siem Reap–Angkor Intl

Mon 9/7

7:20 pm-2:30 pm

3 stops54h 10m

$1,603

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

PHLSAI

Philadelphia

Sat 8/29

9:30 pm-12:15 pm

2 stops27h 45m

Siem Reap–Angkor Intl

Fri 9/4

12:55 pm-2:30 pm

2 stops36h 35m

$1,680

PhiladelphiaSiem Reap

PHL Philadelphia - SAI Siem Reap–Angkor Intl

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

$1,681

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

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 August.
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 $1,432, Qatar Airways can have you in Siem Reap from Philadelphia in 27h 45m. 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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