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Siem Reap

$1,586+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAI
Jul 8 — Jul 151
Wed 7/8
Wed 7/15
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 June 8, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:27 am
PHL
-
SAI
2 stops37h 13m
United Airlines
Wed 10/2110:30 am
SAI
-
PHL
2 stops32h 19m
United Airlines
Deal found 6/7$1,586
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:34 pm
PHL
-
SAI
2 stops52h 06m
United Airlines
Sun 10/1810:30 am
SAI
-
PHL
2 stops45h 45m
United Airlines
Deal found 6/7$1,599
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:27 am
PHL
-
SAI
2 stops61h 13m
United Airlines
Sun 10/1810:30 am
SAI
-
PHL
2 stops56h 19m
United Airlines
Deal found 6/6$1,612
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:00 am
PHL
-
SAI
2 stops40h 40m
United Airlines
Wed 10/1410:30 am
SAI
-
PHL
2 stops45h 45m
United Airlines
Deal found 6/6$1,687
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:00 am
PHL
-
SAI
2 stops40h 40m
United Airlines
Sun 10/1810:30 am
SAI
-
PHL
2 stops65h 58m
United Airlines
Deal found 6/6$1,700
This KAYAK deal was found by Cheapflights users on 6/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:40 pm
PHL
-
SAI
2 stops53h 00m
Lufthansa
Tue 10/2010:30 am
SAI
-
PHL
2 stops40h 35m
Lufthansa
Deal found 6/7$1,759
This Travelocity deal was found by Cheapflights users on 6/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:00 am
PHL
-
SAI
3 stops51h 30m
Multiple Airlines
Sat 10/1711:50 pm
SAI
-
PHL
3 stops57h 56m
Multiple Airlines
Deal found 6/6$1,763
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:34 pm
PHL
-
SAI
2 stops28h 06m
United Airlines
Sun 10/1810:30 am
SAI
-
PHL
2 stops45h 45m
United Airlines
Deal found 6/7$1,824
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:34 pm
PHL
-
SAI
2 stops28h 06m
United Airlines
Sun 10/1810:30 am
SAI
-
PHL
2 stops56h 19m
United Airlines
Deal found 6/6$1,837
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:27 am
PHL
-
SAI
2 stops61h 13m
United Airlines
Wed 10/2110:30 am
SAI
-
PHL
2 stops41h 58m
United Airlines
Deal found 6/7$1,841
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:13 pm
PHL
-
SAI
2 stops57h 42m
United Airlines
Sat 11/144:45 pm
SAI
-
PHL
2 stops51h 00m
United Airlines
Deal found 6/8$1,854
This Ovago deal was found by Cheapflights users on 6/8. 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 11/46:00 am
PHL
-
SAI
3 stops39h 15m
Etihad Airways
Sat 11/147:25 pm
SAI
-
PHL
3 stops58h 07m
Etihad Airways
Deal found 6/8$1,863

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 June 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,586
(United Airlines)
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
Search Deals

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 June 8, 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 - SAI

PHLSAI

Philadelphia

Mon 10/5

6:00 am-9:40 am

2 stops40h 40m

Siem Reap–Angkor Intl

Mon 10/19

10:30 am-5:28 pm

2 stops41h 58m

$1,586

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 10/7

9:27 am-9:40 am

2 stops37h 13m

Siem Reap–Angkor Intl

Sun 10/18

10:30 am-9:15 pm

2 stops45h 45m

$1,586

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 10/7

6:34 pm-9:40 am

2 stops28h 06m

Siem Reap–Angkor Intl

Mon 10/19

10:30 am-5:28 pm

2 stops41h 58m

$1,586

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Tue 10/6

9:27 am-9:40 am

2 stops61h 13m

Siem Reap–Angkor Intl

Mon 10/19

10:30 am-5:28 pm

2 stops41h 58m

$1,599

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sun 10/11

6:34 pm-9:40 am

2 stops52h 06m

Siem Reap–Angkor Intl

Sun 10/18

10:30 am-9:15 pm

2 stops45h 45m

$1,599

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sat 10/10

6:34 pm-9:40 am

2 stops28h 06m

Siem Reap–Angkor Intl

Sun 10/18

10:30 am-9:15 pm

2 stops45h 45m

$1,824

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Sat 10/3

6:34 pm-9:40 am

2 stops28h 06m

Siem Reap–Angkor Intl

Sun 10/18

10:30 am-7:49 am

2 stops56h 19m

$1,837

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

6:13 pm-3:55 pm

2 stops57h 42m

Siem Reap–Angkor Intl

Sat 11/14

4:45 pm-7:45 am

2 stops51h 00m

$1,854

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

6:00 am-9:15 am

3 stops39h 15m

Siem Reap–Angkor Intl

Sat 11/14

7:25 pm-5:32 pm

3 stops58h 07m

$1,863
Quickest round-trip

PhiladelphiaSiem Reap

PHL - SAI

PHLSAI

Philadelphia

Wed 11/4

3:30 pm-9:15 am

3 stops29h 45m

Siem Reap–Angkor Intl

Sat 11/14

7:25 pm-8:08 pm

3 stops36h 43m

$1,879

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars

*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 $1,586, United Airlines can have you in Siem Reap from Philadelphia in 40h 40m. 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

Browse thousands of different options on Cheapflights for your next trip

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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.
John F Kennedy Intl to Siem Reap flights
Newark to Siem Reap flights
Dulles Intl to Siem Reap flights

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