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Cheap flight deals from Philadelphia to Koh Samui Starting at €851

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • PHL06:12 am
        38h 48m
        2 stops
        USM08:00 am
        Mon, Mar 10|Philadelphia - Koh Samui|United Airlines
        €851€1,223
        30% OFF
        30% OFF
        €1,223€851

        Choose United Airlines flights from Philadelphia to Koh Samui. The one-way connecting flight with United Airlines departs from Philadelphia International Airport on Mon, Mar 10, arriving at Samui International Airport. One-way Prices start from €851 including taxes and charges.

      • PHL08:30 am
        46h 45m
        2 stops
        USM06:15 pm
        Wed, Apr 9|Philadelphia - Koh Samui|United Airlines
        €851€1,223
        30% OFF
        30% OFF
        €1,223€851

        Choose United Airlines flights from Philadelphia to Koh Samui. The one-way connecting flight with United Airlines departs from Philadelphia International Airport on Wed, Apr 9, arriving at Samui International Airport. One-way Prices start from €851 including taxes and charges.

      • PHL08:30 am
        46h
        2 stops
        USM06:30 pm
        Mon, Mar 3|Philadelphia - Koh Samui|United Airlines
        €890€1,223
        27% OFF
        27% OFF
        €1,223€890

        Choose United Airlines flights from Philadelphia to Koh Samui. The one-way connecting flight with United Airlines departs from Philadelphia International Airport on Mon, Mar 3, arriving at Samui International Airport. One-way Prices start from €890 including taxes and charges.

      • PHL08:45 pm
        34h 45m
        2 stops
        USM06:30 pm
        Sun, Mar 16|Philadelphia - Koh Samui|Qatar Airways
        €899
        €899

        Choose Qatar Airways flights from Philadelphia to Koh Samui. The one-way connecting flight with Qatar Airways departs from Philadelphia International Airport on Sun, Mar 16, arriving at Samui International Airport. One-way Prices start from €899 including taxes and charges.

      • PHL06:12 am
        38h 48m
        2 stops
        USM08:00 am
        Sat, Mar 15|Philadelphia - Koh Samui|United Airlines
        €910
        €910

        Choose United Airlines flights from Philadelphia to Koh Samui. The one-way connecting flight with United Airlines departs from Philadelphia International Airport on Sat, Mar 15, arriving at Samui International Airport. One-way Prices start from €910 including taxes and charges.

      • PHL06:12 am
        38h 48m
        2 stops
        USM08:00 am
        Sun, Mar 16|Philadelphia - Koh Samui|United Airlines
        €910
        €910

        Choose United Airlines flights from Philadelphia to Koh Samui. The one-way connecting flight with United Airlines departs from Philadelphia International Airport on Sun, Mar 16, arriving at Samui International Airport. One-way Prices start from €910 including taxes and charges.

      • PHL07:56 pm
        34h 34m
        2 stops
        USM06:30 pm
        Sun, Mar 2|Philadelphia - Koh Samui|Qatar Airways
        €918
        €918

        Choose Qatar Airways flights from Philadelphia to Koh Samui. The one-way connecting flight with Qatar Airways departs from Philadelphia International Airport on Sun, Mar 2, arriving at Samui International Airport. One-way Prices start from €918 including taxes and charges.

      • PHL07:56 pm
        34h 34m
        2 stops
        USM06:30 pm
        Fri, Mar 7|Philadelphia - Koh Samui|Qatar Airways
        €918
        €918

        Choose Qatar Airways flights from Philadelphia to Koh Samui. The one-way connecting flight with Qatar Airways departs from Philadelphia International Airport on Fri, Mar 7, arriving at Samui International Airport. One-way Prices start from €918 including taxes and charges.

      • PHL07:56 pm
        34h 34m
        2 stops
        USM06:30 pm
        Fri, Feb 28|Philadelphia - Koh Samui|Qatar Airways
        €919
        €919

        Choose Qatar Airways flights from Philadelphia to Koh Samui. The one-way connecting flight with Qatar Airways departs from Philadelphia International Airport on Fri, Feb 28, arriving at Samui International Airport. One-way Prices start from €919 including taxes and charges.

      • PHL06:12 am
        37h 48m
        2 stops
        USM08:00 am
        Sat, Mar 8|Philadelphia - Koh Samui|United Airlines
        €921
        €921

        Choose United Airlines flights from Philadelphia to Koh Samui. The one-way connecting flight with United Airlines departs from Philadelphia International Airport on Sat, Mar 8, arriving at Samui International Airport. One-way Prices start from €921 including taxes and charges.

      • PHL01:00 pm
        3h 5m
        Nonstop
        USM02:00 pm
        Wed, Feb 26|Philadelphia - Koh Samui|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Philadelphia to Koh Samui Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA120

    American Airlines

    07:56 pm

    PHL

    12.2h

    04:10 pm

    DOH

    SMTWTFS
    Search

  2. AA8206

    American Airlines

    07:45 pm

    DOH

    8.3h

    09:00 am

    SIN

    SMTWTFS

  3. TR648

    Scoot

    05:35 pm

    SIN

    1.9h

    06:30 pm

    USM

    SMTWTFS

  4. AA120

    American Airlines

    07:56 pm

    PHL

    12.2h

    04:10 pm

    DOH

    SMTWTFS
    Search

  5. QR948

    Qatar Airways

    01:40 am

    DOH

    8.3h

    02:55 pm

    SIN

    SMTWTFS

  6. PG968

    Bangkok Airways

    05:20 pm

    SIN

    1.9h

    06:15 pm

    USM

    SMTWTFS

  7. AA120

    American Airlines

    07:56 pm

    PHL

    12.2h

    04:10 pm

    DOH

    SMTWTFS
    Search

  8. AA8271

    American Airlines

    08:20 pm

    DOH

    6.3h

    06:40 am

    BKK

    SMTWTFS

  9. PG129

    Bangkok Airways

    09:55 am

    BKK

    1.2h

    11:05 am

    USM

    SMTWTFS

  10. QR9000

    Qatar Airways

    08:40 pm

    PHL

    12.8h

    04:25 pm

    DOH

    SMTWTFS
    Search

  11. QR818

    Qatar Airways

    02:35 am

    DOH

    7.4h

    03:00 pm

    HKG

    SMTWTFS

  12. QR4440

    Qatar Airways

    04:15 pm

    HKG

    3.3h

    06:35 pm

    USM

    SMTWTFS

  13. QR9000

    Qatar Airways

    08:40 pm

    PHL

    12.8h

    04:25 pm

    DOH

    SMTWTFS
    Search

  14. QR942

    Qatar Airways

    07:45 pm

    DOH

    8.3h

    09:00 am

    SIN

    SMTWTFS

  15. TR648

    Scoot

    05:35 pm

    SIN

    1.9h

    06:30 pm

    USM

    SMTWTFS

  16. QR9000

    Qatar Airways

    08:40 pm

    PHL

    12.8h

    04:25 pm

    DOH

    SMTWTFS
    Search

  17. QR942

    Qatar Airways

    07:45 pm

    DOH

    8.3h

    09:00 am

    SIN

    SMTWTFS

  18. PG968

    Bangkok Airways

    05:20 pm

    SIN

    1.9h

    06:15 pm

    USM

    SMTWTFS

  19. QR9000

    Qatar Airways

    08:40 pm

    PHL

    12.8h

    04:25 pm

    DOH

    SMTWTFS
    Search

  20. QR948

    Qatar Airways

    01:40 am

    DOH

    8.3h

    02:55 pm

    SIN

    SMTWTFS

  21. PG968

    Bangkok Airways

    05:20 pm

    SIN

    1.9h

    06:15 pm

    USM

    SMTWTFS

  22. QR9000

    Qatar Airways

    08:40 pm

    PHL

    12.8h

    04:25 pm

    DOH

    SMTWTFS
    Search

  23. QR942

    Qatar Airways

    07:45 pm

    DOH

    8.3h

    09:00 am

    SIN

    SMTWTFS

  24. PG966

    Bangkok Airways

    12:15 pm

    SIN

    1.9h

    01:10 pm

    USM

    -M-W-F-

  25. QR9000

    Qatar Airways

    08:40 pm

    PHL

    12.8h

    04:25 pm

    DOH

    SMTWTFS
    Search

  26. QR830

    Qatar Airways

    08:30 pm

    DOH

    6.8h

    07:20 am

    BKK

    SMTWTFS

  27. PG119

    Bangkok Airways

    09:00 am

    BKK

    1.6h

    10:35 am

    USM

    SMTWTFS

  28. IB4679

    Iberia

    10:05 pm

    PHL

    7.4h

    11:30 am

    CDG

    S--WTFS
    Search

  29. TG931

    Thai Airways

    01:40 pm

    CDG

    11.3h

    05:55 am

    BKK

    SMTWTFS

  30. PG121

    Bangkok Airways

    07:30 am

    BKK

    1.1h

    08:35 am

    USM

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from Philadelphia to Koh Samui?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Philadelphia (PHL) to Koh Samui (USM) the cheapest?

    Airlines adjust prices for flights from Philadelphia to Koh Samui based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Philadelphia (PHL) to Koh Samui (USM) cost?

    According to Trip.com's data, the lowest price is around €2,696.

  • What is the transportation method from the main airport to downtown in Koh Samui?

    • The distance from Samui International Airport to downtown is about 3 km. It takes about 20 minutes by taxi.

How to find a cheap flight from Philadelphia to Koh Samui

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Philadelphia to Koh Samui. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Philadelphia to Koh Samui

Off-season for travelMarch
Peak season for travelApril
Flight distance14,496.97 km
Popular airlineCathay Pacific

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