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฿3,876+ Cheap flights from Philadelphia

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/7. 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
25 May — 1 Jun1
1 adult

What to know about flights from Philadelphia

Discover essential information about flights departing from Philadelphia, including flight schedules, destinations, airlines operating at the Philadelphia airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 20 May 2025.

Good round-trip deal

฿8,343 or less
Price to beat on a round-trip flight from Philadelphia.
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Find 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 20 May 2025.

Sat 30/805:25PHL - SEA
1 stop11h 25mเดลต้า
Sat 6/917:30SEA - PHL
1 stop9h 15mเดลต้า
Deal found 19/5฿10,269
Fri 15/818:52PHL - SEA
1 stop8h 07mUnited Airlines
Sat 23/805:07SEA - PHL
2 stops9h 14mUnited Airlines
Deal found 18/5฿10,534
Sat 30/818:58PHL - SEA
Nonstop6h 02mอลาสกาแอร์ไลน์
Sun 7/921:45SEA - PHL
Nonstop5h 15mอลาสกาแอร์ไลน์
Deal found 19/5฿11,163
Tue 26/818:58PHL - SEA
Nonstop6h 02mฮาวายเอี้ยนแอร์ไลน์
Sat 6/909:39SEA - PHL
Nonstop5h 14mฮาวายเอี้ยนแอร์ไลน์
Deal found 19/5฿11,329
Thu 11/905:55PHL - SEA
2 stops10h 40mเซาท์เวสต์แอร์ไลน์
Sat 20/921:10SEA - PHL
2 stops11h 40mเซาท์เวสต์แอร์ไลน์
Deal found 19/5฿11,495
Wed 18/612:06PHL - SEA
1 stop8h 08mซันคันทรี่แอร์ไลน์
Fri 20/623:59SEA - PHL
1 stop8h 11mซันคันทรี่แอร์ไลน์
Deal found 19/5฿13,582
Wed 10/920:30PHL - BKK
1 stop29h 55mQatar Airways
Wed 24/920:00BKK - PHL
1 stop24h 00mQatar Airways
Deal found 19/5฿29,780
Mon 1/919:20PHL - HKT
2 stops36h 30mไอบีเรีย
Tue 9/909:20HKT - PHL
2 stops42h 30mไอบีเรีย
Deal found 19/5฿30,343
Wed 3/905:25PHL - BKK
2 stops32h 40mเดลต้า
Tue 16/902:35BKK - PHL
2 stops29h 03mเดลต้า
Deal found 19/5฿30,741
Wed 3/906:00PHL - BKK
2 stops30h 25mKorean Air
Wed 17/923:30BKK - PHL
2 stops28h 47mKorean Air
Deal found 19/5฿30,906
Mon 1/920:30PHL - HKT
1 stop35h 20mQatar Airways
Tue 9/909:20HKT - PHL
1 stop34h 40mQatar Airways
Deal found 19/5฿32,496
Wed 10/910:20PHL - BKK
2 stops25h 40mAmerican Airlines
Wed 24/908:05BKK - PHL
2 stops27h 55mAmerican Airlines
Deal found 19/5฿33,424

Find flights from Philadelphia within your budget

Find flights departing from Philadelphia that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 20 May 2025. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Suvarnabhumi

Route

Depart

Return

Price

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 30/8

05:25-13:50

1 stop11h 25m

Seattle/Tacoma Intl

Sat 6/9

17:30-05:45

1 stop9h 15m

฿10,269

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 15/8

18:52-23:59

1 stop8h 07m

Seattle/Tacoma Intl

Sat 23/8

05:07-17:21

2 stops9h 14m

฿10,534

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 30/8

18:58-22:00

Nonstop6h 02m

Seattle/Tacoma Intl

Sun 7/9

21:45-06:00

Nonstop5h 15m

฿11,163

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 11/9

05:55-13:35

2 stops10h 40m

Seattle/Tacoma Intl

Sat 20/9

21:10-11:50

2 stops11h 40m

฿11,495

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 26/8

07:20-10:12

Nonstop5h 52m

Seattle/Tacoma Intl

Tue 2/9

21:45-06:00

Nonstop5h 15m

฿12,654

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 18/6

12:06-17:14

1 stop8h 08m

Seattle/Tacoma Intl

Fri 20/6

23:59-11:10

1 stop8h 11m

฿13,582

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Wed 10/9

20:30-13:25

1 stop29h 55m

Bangkok Suvarnabhumi

Wed 24/9

20:00-09:00

1 stop24h 00m

฿29,780

PhiladelphiaPhuket City

PHL - HKT

PHLHKT

Philadelphia

Mon 1/9

19:20-18:50

2 stops36h 30m

Phuket City

Tue 9/9

09:20-16:50

2 stops42h 30m

฿30,343

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Wed 3/9

05:25-01:05

2 stops32h 40m

Bangkok Suvarnabhumi

Tue 16/9

02:35-20:38

2 stops29h 03m

฿30,741

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Wed 3/9

06:00-23:25

2 stops30h 25m

Bangkok Suvarnabhumi

Wed 17/9

23:30-17:17

2 stops28h 47m

฿30,906

Flights are sorted by cheapest return flights first.

Deals found on 19/5

Showing 1-10 of 45 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.

Travel insights for flights from Philadelphia

Get recent, data-driven insights about flights from Philadelphia including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Philadelphia?

Use this chart to determine the optimal time to book a return flight from Philadelphia to Suvarnabhumi. Price data was last updated on 16 May 2025.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Philadelphia?

Currently, September is the cheapest month in which you can book a flight from Philadelphia (average of ฿24,811). Flying from Philadelphia in June will prove the most costly (average of ฿35,279). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from Philadelphia?

If you’re flying from Philadelphia, these routes are more frequently taken by airlines Chicago (589 flights per day), Orlando (458 flights per day) and Detroit (368 flights per day).

Los Angeles
Los Angeles
From ฿248
San Francisco
San Francisco
From ฿498

What is the cheapest place to fly to from Philadelphia?

The cheapest city to fly to from Philadelphia is Los Angeles, with prices starting at ฿8,215. Explore other affordable destinations below.

Los Angeles
Los Angeles
From ฿248
San Francisco
San Francisco
From ฿498

Airline reviews for flights from Philadelphia

Get insights into the airlines that provide service from Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Philadelphia. In the last 7 days, Cheapflights users made a total of 17,341 searches.
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very Good
1,193 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Korean Air
8.4
Very Good
1,076 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Japan Airlines
8.3
Very Good
1,477 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Airlines
8.3
Very Good
733 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
ANA
8.3
Very Good
871 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Food

8.1

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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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 20 May 2025.

  • What are the most popular destinations to fly to from Philadelphia?

    The most selected flight destinations from Philadelphia for the current month are Atlanta, Boston, Chicago. While Atlanta, Boston, Chicago are the top choices made by travellers year-round.

  • What is the cheapest flight from Philadelphia to anywhere?

    Users have flown out of Philadelphia for as low as ฿8,215 to Los Angeles (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿12,799 to fly from Philadelphia.

  • What is the cheapest month to fly from Philadelphia?

    At the present moment the cheapest month to fly from Philadelphia is currently September; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Philadelphia?

    Here are some of the cheapest flight destinations from Philadelphia:
    Fly from Philadelphia to Bangkok from ฿29,780

  • How does Cheapflights help users find flights from Philadelphia?

    Cheapflights makes it easy to find flights from Philadelphia by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

  • Why should you use Cheapflights to find cheap flight tickets from Philadelphia?

    Cheapflights simply makes it quick and affordable to book flights from Philadelphia by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from Philadelphia with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from Philadelphia, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from Philadelphia become cheaper?

    Yes, Cheapflights offers price alerts on flights from Philadelphia so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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How does Cheapflights help users find flights from Philadelphia?

Cheapflights makes it easy to find flights from Philadelphia by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia?

Cheapflights simply makes it quick and affordable to book flights from Philadelphia by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Philadelphia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Philadelphia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on flights from Philadelphia so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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