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฿3,947+ 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 17/7. 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
10 Jul — 17 Jul1
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 5 July 2025.

Good round-trip deal

฿8,149 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 5 July 2025.

Mon 11/808:00PHL - SEA
1 stop8h 50mเดลต้า
Tue 19/805:30SEA - PHL
1 stop9h 16mเดลต้า
Deal found 3/7฿9,868
Tue 2/906:30PHL - SEA
1 stop7h 40mเซาท์เวสต์แอร์ไลน์
Mon 8/923:10SEA - PHL
1 stop7h 45mเซาท์เวสต์แอร์ไลน์
Deal found 4/7฿9,900
Tue 29/708:15PHL - SEA
2 stops12h 34mUnited Airlines
Tue 29/723:45SEA - PHL
1 stop8h 02mUnited Airlines
Deal found 4/7฿10,288
Wed 20/818:58PHL - SEA
Nonstop6h 02mอลาสกาแอร์ไลน์
Tue 9/921:45SEA - PHL
Nonstop5h 17mอลาสกาแอร์ไลน์
Deal found 2/7฿10,579
Tue 23/1212:13PHL - SEA
1 stop7h 53mซันคันทรี่แอร์ไลน์
Mon 29/1223:59SEA - PHL
1 stop7h 58mซันคันทรี่แอร์ไลน์
Deal found 4/7฿11,162
Tue 9/913:03PHL - BKK
2 stops28h 32mANA
Mon 22/921:35BKK - PHL
2 stops27h 42mANA
Deal found 3/7฿29,603
Tue 19/806:00PHL - BKK
2 stops30h 25mเดลต้า
Mon 25/802:35BKK - PHL
2 stops30h 45mเดลต้า
Deal found 3/7฿30,056
Tue 25/1106:15PHL - BKK
2 stops43h 00mKorean Air
Mon 8/1223:15BKK - PHL
2 stops25h 23mKorean Air
Deal found 2/7฿30,217
Mon 1/1212:40PHL - BKK
2 stops28h 30mUnited Airlines
Thu 11/1207:10BKK - PHL
2 stops24h 16mUnited Airlines
Deal found 2/7฿30,314
Tue 9/920:25PHL - BKK
1 stop30h 00mAmerican Airlines
Mon 22/908:40BKK - PHL
1 stop35h 25mAmerican Airlines
Deal found 4/7฿31,803
Mon 1/920:25PHL - HKT
1 stop35h 25mQatar Airways
Tue 9/909:20HKT - PHL
1 stop34h 45mQatar Airways
Deal found 4/7฿32,417
Mon 1/916:59PHL - HKT
2 stops42h 11mเดลต้า
Tue 9/923:25HKT - PHL
2 stops36h 31mเดลต้า
Deal found 3/7฿33,291

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 5 July 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

Mon 11/8

08:00-13:50

1 stop8h 50m

Seattle/Tacoma Intl

Tue 19/8

05:30-17:46

1 stop9h 16m

฿9,868

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 2/9

06:30-11:10

1 stop7h 40m

Seattle/Tacoma Intl

Mon 8/9

23:10-09:55

1 stop7h 45m

฿9,900

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 29/7

08:15-17:49

2 stops12h 34m

Seattle/Tacoma Intl

Tue 29/7

23:45-10:47

1 stop8h 02m

฿10,288

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 23/12

12:13-17:06

1 stop7h 53m

Seattle/Tacoma Intl

Mon 29/12

23:59-10:57

1 stop7h 58m

฿11,162

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 12/8

06:45-09:42

Nonstop5h 57m

Seattle/Tacoma Intl

Fri 22/8

21:45-06:00

Nonstop5h 15m

฿11,873

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Tue 9/9

13:03-04:35

2 stops28h 32m

Bangkok Suvarnabhumi

Mon 22/9

21:35-14:17

2 stops27h 42m

฿29,603

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Tue 19/8

06:00-23:25

2 stops30h 25m

Bangkok Suvarnabhumi

Mon 25/8

02:35-22:20

2 stops30h 45m

฿30,056

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Tue 25/11

06:15-13:15

2 stops43h 00m

Bangkok Suvarnabhumi

Wed 10/12

23:15-12:38

2 stops25h 23m

฿30,217

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Mon 1/12

12:40-10:50

3 stops34h 10m

Bangkok Suvarnabhumi

Tue 9/12

09:25-14:17

2 stops40h 52m

฿30,314

PhiladelphiaBangkok

PHL - BKK

PHLBKK

Philadelphia

Tue 9/9

20:25-13:25

1 stop30h 00m

Bangkok Suvarnabhumi

Mon 22/9

08:40-09:05

1 stop35h 25m

฿31,803

Flights are sorted by cheapest return flights first.

Deals found on 4/7

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 27 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 ฿24,103). Flying from Philadelphia in June will prove the most costly (average of ฿34,326). 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 (298 flights per day), Boston (171 flights per day) and Atlanta (167 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 ฿8,023. 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.
Check out reviews from past customers who have flown ANA, Korean Air, andJapan Airlines from Philadelphia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very Good
887 reviews
Check prices

Entertainment

7.9

Crew

8.7

Boarding

8.5

Food

7.7

Overall

8.4

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very Good
887 reviews
ANA
8.4
Very Good
887 reviews
Check prices

Entertainment

7.9

Crew

8.7

Boarding

8.5

Food

7.7

Overall

8.4

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Korean Air
8.4
Very Good
1,102 reviews
ANA
8.4
Very Good
887 reviews
Check prices

Entertainment

7.9

Crew

8.7

Boarding

8.5

Food

7.7

Overall

8.4

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Japan Airlines
8.3
Very Good
1,504 reviews
ANA
8.4
Very Good
887 reviews
Check prices

Entertainment

7.9

Crew

8.7

Boarding

8.5

Food

7.7

Overall

8.4

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
เดลต้า
8.0
Very Good
7,968 reviews
ANA
8.4
Very Good
887 reviews
Check prices

Entertainment

7.9

Crew

8.7

Boarding

8.5

Food

7.7

Overall

8.4

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
China Southern
7.6
Good
100 reviews
ANA
8.4
Very Good
887 reviews
Check prices

Entertainment

7.9

Crew

8.7

Boarding

8.5

Food

7.7

Overall

8.4

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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Direct flights from Pennsylvania

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Direct flights from Jacksonville

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 5 July 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 ฿8,023 to Los Angeles (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿12,501 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 ฿30,056

  • 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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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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