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Thailand (ภาษาไทย)
ภาษาไทย

฿4,739+ Direct flights from Philadelphia

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — BKK
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Direct flights from Philadelphia

Cheapest flights from Philadelphia
Explore the most affordable flight options available from Philadelphia. Find the lowest fares based on data from user searches, with prices last updated on 16 September 2025.

Fri 20/218:35PHL - SEA
Nonstop6h 12mอลาสกาแอร์ไลน์
Wed 4/309:15SEA - PHL
Nonstop5h 16mอลาสกาแอร์ไลน์
Deal found 15/9฿8,809
Sun 9/1107:02PHL - SEA
Nonstop6h 11mอลาสกาแอร์ไลน์
Tue 11/1121:30SEA - PHL
Nonstop5h 12mอลาสกาแอร์ไลน์
Deal found 15/9฿9,445
Sat 28/218:35PHL - SEA
Nonstop6h 12mฮาวายเอี้ยนแอร์ไลน์
Sat 7/309:15SEA - PHL
Nonstop5h 16mฮาวายเอี้ยนแอร์ไลน์
Deal found 16/9฿9,763
Sun 1/218:35PHL - SEA
Nonstop6h 12mฮาวายเอี้ยนแอร์ไลน์
Sun 8/209:15SEA - PHL
Nonstop5h 16mฮาวายเอี้ยนแอร์ไลน์
Deal found 16/9฿10,081
Tue 16/1207:06PHL - SEA
Nonstop6h 14mอลาสกาแอร์ไลน์
Sat 3/121:29SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 16/9฿10,399
Wed 17/1207:06PHL - SEA
Nonstop6h 14mอลาสกาแอร์ไลน์
Tue 6/121:29SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 15/9฿10,717
Sun 12/1007:00PHL - SEA
Nonstop5h 49mอลาสกาแอร์ไลน์
Sun 12/1021:23SEA - PHL
Nonstop5h 17mอลาสกาแอร์ไลน์
Deal found 15/9฿11,035
Sat 15/1119:12PHL - SEA
Nonstop6h 18mอลาสกาแอร์ไลน์
Wed 19/1109:59SEA - PHL
Nonstop5h 13mอลาสกาแอร์ไลน์
Deal found 15/9฿11,258
Thu 25/1207:00PHL - SEA
Nonstop6h 04mอลาสกาแอร์ไลน์
Wed 31/1221:29SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 15/9฿11,353
Sun 11/118:35PHL - SEA
Nonstop6h 12mอลาสกาแอร์ไลน์
Sat 17/109:15SEA - PHL
Nonstop5h 16mอลาสกาแอร์ไลน์
Deal found 14/9฿11,671
Thu 25/1207:00PHL - SEA
Nonstop6h 04mอลาสกาแอร์ไลน์
Tue 30/1221:29SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 15/9฿11,989
Wed 31/1207:00PHL - SEA
Nonstop6h 04mอลาสกาแอร์ไลน์
Thu 8/109:15SEA - PHL
Nonstop5h 16mอลาสกาแอร์ไลน์
Deal found 15/9฿12,307

Find direct flights from Philadelphia within your budget

 
Use the slider to find direct flights from Philadelphia within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 17,341 searches. This data was last updated on 16 September 2025.

Fly to

Suvarnabhumi

Route

Depart

Return

Price

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 10/10

07:00-09:49

Nonstop5h 49m

Seattle/Tacoma Intl

Sat 11/10

21:23-05:40

Nonstop5h 17m

฿8,809

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sun 5/10

07:00-09:49

Nonstop5h 49m

Seattle/Tacoma Intl

Sat 11/10

09:45-18:11

Nonstop5h 26m

฿8,809

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 9/12

07:06-10:20

Nonstop6h 14m

Seattle/Tacoma Intl

Fri 12/12

21:35-05:46

Nonstop5h 11m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 3/12

07:06-10:20

Nonstop6h 14m

Seattle/Tacoma Intl

Fri 5/12

09:45-17:54

Nonstop5h 09m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 3/3

18:35-21:47

Nonstop6h 12m

Seattle/Tacoma Intl

Wed 4/3

09:15-17:31

Nonstop5h 16m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 3/3

18:35-21:47

Nonstop6h 12m

Seattle/Tacoma Intl

Wed 4/3

09:15-17:31

Nonstop5h 16m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sun 9/11

07:02-10:13

Nonstop6h 11m

Seattle/Tacoma Intl

Mon 10/11

21:30-05:42

Nonstop5h 12m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sun 16/11

07:02-10:13

Nonstop6h 11m

Seattle/Tacoma Intl

Tue 18/11

21:30-05:42

Nonstop5h 12m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sun 7/12

07:06-10:20

Nonstop6h 14m

Seattle/Tacoma Intl

Tue 9/12

21:35-05:46

Nonstop5h 11m

฿9,445

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sun 9/11

07:02-10:13

Nonstop6h 11m

Seattle/Tacoma Intl

Wed 12/11

09:59-18:12

Nonstop5h 13m

฿9,445

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 18 results
1
2

Best time to book a flight from Philadelphia

Have a flexible travel schedule? Discover the best time to fly from Philadelphia with our price prediction graph.
Estimated return 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

Access useful and relevant information related to your journey from Philadelphia. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 16 September 2025.

  • Where can you fly direct from Philadelphia?

    Currently, the most popular direct flight destination from Philadelphia is San Francisco.

  • What is the best time of year to fly direct from Philadelphia?

    If you're seeking the lowest price on a direct flight from Philadelphia, October is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, September offers travelers the most options.

Browse thousands of different options on Cheapflights for your next trip

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