$700+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAI
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Siem Reap with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Siem Reap
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Best
Last-minute
One-way
Cheapest flights from Philadelphia to Siem ReapExplore 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 September 8, 2026.
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 September 8, 2026.
This oojo deal was found by Cheapflights users on 9/5. 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.
Mon 10/59:30 pm -
2 stops33h 50m
Mon 10/196:05 pm -
2 stops55h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,215
This oojo deal was found by Cheapflights users on 9/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:45 pm -
2 stops35h 45m
Sat 11/148:30 pm -
2 stops54h 20m
Deal found 9/7![Multiple Airlines logo]()
$1,239
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:45 pm -
2 stops32h 10m
Fri 11/137:25 pm -
2 stops31h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,244
This oojo deal was found by Cheapflights users on 9/5. 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.
Tue 10/279:45 pm -
2 stops32h 10m
Sat 11/148:30 pm -
2 stops54h 20m
Deal found 9/5![Multiple Airlines logo]()
$1,255
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:45 pm -
2 stops32h 10m
Sun 11/159:55 am -
2 stops40h 55m
Deal found 9/5![Multiple Airlines logo]()
$1,295
This FlightHub deal was found by Cheapflights users on 9/5. 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.
Tue 10/279:45 pm -
2 stops34h 55m
Sun 11/159:55 am -
2 stops40h 55m
Deal found 9/5![Multiple Airlines logo]()
$1,306
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:40 pm -
2 stops28h 15m
Mon 11/164:50 pm -
2 stops35h 15m
Deal found 9/5![Lufthansa logo]()
$1,312
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:40 pm -
2 stops52h 15m
Wed 11/114:50 pm -
2 stops35h 15m
Deal found 9/5![Lufthansa logo]()
$1,322
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:45 pm -
2 stops32h 55m
Sat 11/147:25 pm -
2 stops31h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,337
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:45 pm -
2 stops24h 30m
Thu 11/127:25 pm -
2 stops31h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,346
Best flights from Philadelphia to Siem ReapDiscover carefully curated flight deals from Philadelphia to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Philadelphia to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This oojo deal was found by Cheapflights users on 9/4. 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 11/48:45 pm -
2 stops32h 55m
Sat 11/148:30 pm -
2 stops54h 20m
Deal found 9/4![Multiple Airlines logo]()
$1,351
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:00 am -
2 stops40h 55m
Wed 11/1110:45 am -
2 stops42h 30m
Deal found 9/5![United Airlines logo]()
$1,382
This Ovago deal was found by Cheapflights users on 9/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am -
3 stops38h 45m
Sat 11/217:25 pm -
3 stops59h 29m
Deal found 9/7![Etihad Airways logo]()
$1,467
This Qatar Airways deal was found by Cheapflights users on 9/7. 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 11/128:45 pm -
2 stops33h 45m
Sat 11/217:25 pm -
2 stops31h 25m
Deal found 9/7![Qatar Airways logo]()
$1,568
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:10 am -
2 stops67h 50m
Fri 11/1310:45 am -
3 stops36h 52m
Deal found 9/5![United Airlines logo]()
$1,393
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:34 pm -
2 stops58h 26m
Fri 11/1310:45 am -
3 stops36h 52m
Deal found 9/5![United Airlines logo]()
$1,393
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:45 am -
3 stops67h 15m
Tue 11/174:50 pm -
3 stops30h 47m
Deal found 9/5![United Airlines logo]()
$1,398
Last-minute flights from Philadelphia to Siem ReapDiscover last-minute flight deals from Philadelphia to Siem Reap. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Siem Reap. Data last updated September 8, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 9/5. 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.
Mon 10/59:30 pm -
2 stops33h 50m
Mon 10/196:05 pm -
2 stops55h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,215
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:27 am -
2 stops67h 33m
Thu 11/124:50 pm -
2 stops41h 59m
Deal found 9/5![United Airlines logo]()
$1,393
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:40 pm -
2 stops28h 15m
Mon 11/164:50 pm -
2 stops35h 15m
Deal found 9/5![Lufthansa logo]()
$1,312
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:45 pm -
2 stops32h 10m
Fri 11/137:25 pm -
2 stops31h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,244
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:45 pm -
2 stops32h 10m
Sun 11/159:55 am -
2 stops40h 55m
Deal found 9/5![Multiple Airlines logo]()
$1,295
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:00 am -
2 stops40h 55m
Wed 11/1110:45 am -
2 stops42h 30m
Deal found 9/5![United Airlines logo]()
$1,382
This oojo deal was found by Cheapflights users on 9/5. 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.
Tue 10/279:45 pm -
2 stops32h 10m
Sat 11/148:30 pm -
2 stops54h 20m
Deal found 9/5![Multiple Airlines logo]()
$1,255
This FlightHub deal was found by Cheapflights users on 9/5. 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.
Tue 10/279:45 pm -
2 stops34h 55m
Sun 11/159:55 am -
2 stops40h 55m
Deal found 9/5![Multiple Airlines logo]()
$1,306
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:45 pm -
2 stops34h 05m
Sun 11/157:25 pm -
2 stops31h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,337
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:40 pm -
2 stops52h 15m
Wed 11/114:50 pm -
2 stops35h 15m
Deal found 9/5![Lufthansa logo]()
$1,322
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:45 pm -
2 stops24h 30m
Thu 11/127:25 pm -
2 stops31h 25m
Deal found 9/5![Multiple Airlines logo]()
$1,346
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:45 pm -
2 stops24h 30m
Sun 11/151:20 pm -
2 stops37h 30m
Deal found 9/5![Multiple Airlines logo]()
$1,386
One-way flights from Philadelphia to Siem ReapSearch for one-way flight options from Philadelphia to Siem Reap. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Philadelphia to Siem Reap. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This FlightHub deal was found by Cheapflights users on 9/3. 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.
Sat 1/308:45 pm -
2 stops27h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$700
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:30 am -
3 stops45h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$706
This Ovago deal was found by Cheapflights users on 9/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:30 am -
3 stops43h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Etihad Airways logo]()
$716
This Ovago deal was found by Cheapflights users on 9/3. 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.
Sat 1/308:40 am -
3 stops40h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Etihad Airways logo]()
$794
This SmartFares deal was found by Cheapflights users on 9/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:30 pm -
2 stops33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$897
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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,215 (oojo) |
One-way from | $700 (FlightHub) |
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 7,457,451 searches. Data last updated September 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
Cheapest round-trip
Quickest round-trip
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Sat 1/30
8:45 pm-12:40 pm
2 stops27h 55m
Siem Reap–Angkor Intl
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$700
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Thu 10/8
6:30 am-2:50 pm
3 stops45h 20m
Siem Reap–Angkor Intl
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$706
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Fri 10/23
6:30 am-12:40 pm
3 stops43h 10m
Siem Reap–Angkor Intl
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$716
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Sat 1/30
8:40 am-12:40 pm
3 stops40h 00m
Siem Reap–Angkor Intl
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$794
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Fri 10/23
9:30 pm-5:40 pm
2 stops33h 10m
Siem Reap–Angkor Intl
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$897
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Wed 11/4
8:45 pm-5:40 pm
2 stops32h 55m
Siem Reap–Angkor Intl
Sat 11/14
8:30 pm-2:50 pm
2 stops54h 20m
$1,351
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Mon 10/26
6:00 am-9:55 am
2 stops40h 55m
Siem Reap–Angkor Intl
Wed 11/11
10:45 am-5:15 pm
2 stops42h 30m
$1,382
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Wed 10/28
9:10 am-4:00 pm
2 stops67h 50m
Siem Reap–Angkor Intl
Fri 11/13
10:45 am-11:37 am
3 stops36h 52m
$1,393
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Sat 10/24
6:34 pm-4:00 pm
2 stops58h 26m
Siem Reap–Angkor Intl
Fri 11/13
10:45 am-11:37 am
3 stops36h 52m
$1,393
PhiladelphiaSiem Reap
PHL Philadelphia - SAI Siem Reap–Angkor Intl
PHLSAI
Philadelphia
Wed 10/28
9:45 am-4:00 pm
3 stops67h 15m
Siem Reap–Angkor Intl
Tue 11/17
4:50 pm-11:37 am
3 stops30h 47m
$1,398
Showing 1-10 of 12 resultsSorted 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
PHL-SAI
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.
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