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฿4,068+ 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 30/6. 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
19 Jun — 26 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 14 June 2025.

Good round-trip deal

฿8,131 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 14 June 2025.

Wed 9/719:59PHL - SEA
1 stop7h 57mUnited Airlines
Wed 16/719:00SEA - PHL
1 stop7h 37mUnited Airlines
Deal found 12/6฿9,943
Wed 13/807:00PHL - SEA
1 stop10h 43mเดลต้า
Mon 18/823:55SEA - PHL
1 stop7h 44mเดลต้า
Deal found 13/6฿10,105
Thu 4/918:10PHL - SEA
1 stop8h 55mเซาท์เวสต์แอร์ไลน์
Thu 11/909:20SEA - PHL
1 stop9h 50mเซาท์เวสต์แอร์ไลน์
Deal found 14/6฿10,234
Wed 13/818:52PHL - SEA
Nonstop6h 05mอลาสกาแอร์ไลน์
Tue 26/821:45SEA - PHL
Nonstop5h 15mอลาสกาแอร์ไลน์
Deal found 13/6฿10,557
Wed 9/706:45PHL - SEA
Nonstop5h 57mฮาวายเอี้ยนแอร์ไลน์
Thu 17/721:15SEA - PHL
Nonstop5h 10mฮาวายเอี้ยนแอร์ไลน์
Deal found 13/6฿12,332
Wed 25/612:06PHL - SEA
1 stop13h 44mซันคันทรี่แอร์ไลน์
Fri 27/623:59SEA - PHL
1 stop7h 59mซันคันทรี่แอร์ไลน์
Deal found 13/6฿13,720
Wed 10/920:30PHL - BKK
1 stop23h 25mQatar Airways
Wed 24/920:00BKK - PHL
1 stop24h 00mQatar Airways
Deal found 14/6฿29,055
Tue 12/812:38PHL - BKK
2 stops30h 22mANA
Tue 2/921:35BKK - PHL
2 stops27h 42mANA
Deal found 14/6฿29,894
Wed 10/906:00PHL - BKK
2 stops30h 25mเดลต้า
Tue 23/902:35BKK - PHL
2 stops32h 48mเดลต้า
Deal found 13/6฿29,959
Thu 25/909:30PHL - BKK
2 stops26h 55mKorean Air
Sun 5/1002:35BKK - PHL
2 stops49h 42mKorean Air
Deal found 12/6฿30,055
Tue 15/710:40PHL - BKK
2 stops30h 55mUnited Airlines
Tue 22/709:35BKK - PHL
2 stops54h 51mUnited Airlines
Deal found 14/6฿30,152
Mon 1/920:25PHL - HKT
1 stop35h 25mQatar Airways
Tue 9/920:25HKT - PHL
1 stop23h 35mQatar Airways
Deal found 14/6฿31,605

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 14 June 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

Wed 9/7

19:59-00:56

1 stop7h 57m

Seattle/Tacoma Intl

Wed 16/7

19:00-05:37

1 stop7h 37m

฿9,943

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 13/8

07:00-14:43

1 stop10h 43m

Seattle/Tacoma Intl

Mon 18/8

23:55-10:39

1 stop7h 44m

฿10,105

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 4/9

18:10-00:05

1 stop8h 55m

Seattle/Tacoma Intl

Thu 11/9

09:20-22:10

1 stop9h 50m

฿10,234

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 13/8

18:52-21:57

Nonstop6h 05m

Seattle/Tacoma Intl

Tue 26/8

21:45-06:00

Nonstop5h 15m

฿10,557

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 9/7

06:45-09:42

Nonstop5h 57m

Seattle/Tacoma Intl

Thu 17/7

21:15-05:25

Nonstop5h 10m

฿12,332

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 25/6

12:06-17:14

1 stop8h 08m

Seattle/Tacoma Intl

Thu 3/7

23:59-11:10

1 stop8h 11m

฿13,720

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Wed 10/9

20:30-06:55

1 stop23h 25m

Bangkok Suvarnabhumi

Wed 24/9

20:00-09:00

1 stop24h 00m

฿29,055

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Tue 12/8

12:38-06:00

2 stops30h 22m

Bangkok Suvarnabhumi

Tue 2/9

21:35-14:17

2 stops27h 42m

฿29,894

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Wed 10/9

06:00-23:25

2 stops30h 25m

Bangkok Suvarnabhumi

Wed 24/9

09:50-23:43

2 stops24h 53m

฿29,959

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Thu 25/9

09:30-23:25

2 stops26h 55m

Bangkok Suvarnabhumi

Sun 5/10

02:35-17:17

2 stops49h 42m

฿30,055

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 58 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 13 June 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 ฿24,019). Flying from Philadelphia in June will prove the most costly (average of ฿34,414). 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 (511 flights per day), Orlando (308 flights per day) and Atlanta (303 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 ฿8,006. 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
1,204 reviews
Check prices

Comfort

8.3

Food

8.1

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
1,204 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Comfort

8.3

Food

8.1

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
1,091 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Comfort

8.3

Food

8.1

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
1,490 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Comfort

8.3

Food

8.1

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
738 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Comfort

8.3

Food

8.1

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
884 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Comfort

8.3

Food

8.1

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 14 June 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, Nashville 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 ฿8,006 to Los Angeles (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿12,474 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 ฿28,990

  • 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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