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Thailand (ภาษาไทย)
ภาษาไทย

฿4,686+ 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 5/12. 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
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Direct flights from Philadelphia

Enter your travel dates to find the best prices.

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 5 November 2025.

Sat 28/218:35PHL - SEA
Nonstop6h 12mอลาสกาแอร์ไลน์
Sun 8/309:15SEA - PHL
Nonstop5h 16mอลาสกาแอร์ไลน์
Deal found 4/11฿8,688
Tue 3/318:35PHL - SEA
Nonstop6h 12mฮาวายเอี้ยนแอร์ไลน์
Wed 4/309:15SEA - PHL
Nonstop5h 16mฮาวายเอี้ยนแอร์ไลน์
Deal found 4/11฿9,338
Mon 9/219:06PHL - SEA
Nonstop6h 23mอลาสกาแอร์ไลน์
Wed 11/209:54SEA - PHL
Nonstop5h 09mอลาสกาแอร์ไลน์
Deal found 4/11฿9,989
Tue 2/1218:54PHL - SEA
Nonstop6h 18mอลาสกาแอร์ไลน์
Tue 9/1209:44SEA - PHL
Nonstop5h 09mอลาสกาแอร์ไลน์
Deal found 4/11฿10,315
Mon 9/219:06PHL - SEA
Nonstop6h 23mอลาสกาแอร์ไลน์
Mon 16/209:15SEA - PHL
Nonstop5h 16mอลาสกาแอร์ไลน์
Deal found 4/11฿10,965
Wed 11/219:06PHL - SEA
Nonstop6h 23mอลาสกาแอร์ไลน์
Mon 16/209:15SEA - PHL
Nonstop5h 16mอลาสกาแอร์ไลน์
Deal found 4/11฿11,453
Sat 11/418:35PHL - SEA
Nonstop6h 09mอลาสกาแอร์ไลน์
Tue 14/421:15SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 4/11฿12,267
Thu 25/1207:00PHL - SEA
Nonstop6h 04mอลาสกาแอร์ไลน์
Thu 1/121:29SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 3/11฿12,592
Tue 21/418:35PHL - SEA
Nonstop6h 09mอลาสกาแอร์ไลน์
Fri 24/421:15SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 4/11฿12,918
Mon 22/1207:00PHL - SEA
Nonstop6h 04mอลาสกาแอร์ไลน์
Thu 25/1209:34SEA - PHL
Nonstop5h 10mอลาสกาแอร์ไลน์
Deal found 3/11฿13,406
Fri 19/1207:00PHL - SEA
Nonstop6h 04mอลาสกาแอร์ไลน์
Mon 29/1221:29SEA - PHL
Nonstop5h 08mอลาสกาแอร์ไลน์
Deal found 3/11฿13,894

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 5 November 2025.

Fly to

Suvarnabhumi

Route

Depart

Return

Price

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 28/2

18:35-21:47

Nonstop6h 12m

Seattle/Tacoma Intl

Sun 8/3

09:15-17:31

Nonstop5h 16m

฿8,688

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

฿9,338

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 2/12

18:54-22:12

Nonstop6h 18m

Seattle/Tacoma Intl

Tue 9/12

09:44-17:53

Nonstop5h 09m

฿10,315

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 11/2

19:06-22:29

Nonstop6h 23m

Seattle/Tacoma Intl

Mon 16/2

09:15-17:31

Nonstop5h 16m

฿11,453

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 26/12

07:00-10:04

Nonstop6h 04m

Seattle/Tacoma Intl

Wed 31/12

21:29-05:37

Nonstop5h 08m

฿11,616

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 19/12

07:00-10:04

Nonstop6h 04m

Seattle/Tacoma Intl

Thu 25/12

09:34-17:44

Nonstop5h 10m

฿11,616

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 18/12

07:00-10:04

Nonstop6h 04m

Seattle/Tacoma Intl

Fri 26/12

21:29-05:37

Nonstop5h 08m

฿12,592

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 24/12

18:44-21:59

Nonstop6h 15m

Seattle/Tacoma Intl

Mon 29/12

21:29-05:37

Nonstop5h 08m

฿12,592

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 1/1

07:00-10:04

Nonstop6h 04m

Seattle/Tacoma Intl

Sun 4/1

21:29-05:37

Nonstop5h 08m

฿12,592

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 25/12

07:00-10:04

Nonstop6h 04m

Seattle/Tacoma Intl

Tue 30/12

21:29-05:37

Nonstop5h 08m

฿12,592

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 20 results
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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.

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