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Find cheap flights from Philadelphia to Southeast Asia from $645

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Southeast Asia departing on 9/10. 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.
1 adult
0 bags
Sun 5/26
Sun 6/2

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Best Southeast Asia Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Manila
Manila1 stop$1,066
Bangkok
Bangkok1 stop$1,245
Ho Chi Minh City
Ho Chi Minh City1 stop$1,057
Singapore
Singapore1 stop$1,517
Denpasar
Denpasar2 stops$1,381
Cebu City
Cebu City2 stops$1,400
Phuket City
Phuket City2 stops$1,398
Hanoi
Hanoi2 stops$1,262
Phnom Penh
Phnom Penh2 stops$1,299
Chiang Mai
Chiang Mai2 stops$1,556
Da Nang
Da Nang2 stops$1,237
Angeles City
Angeles City2 stops$1,327

Good to know

Low season

July

High season

May

Cheapest flight

$645
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Philadelphia to Bangkok Suvarnabhumi Airport

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Philadelphia to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southeast Asia from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Southeast Asia with an airline and back to Philadelphia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Southeast Asia from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Philadelphia to Southeast Asia

 
Need help choosing which airline to fly with from Philadelphia to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.5
Korean AirOverall score based on 1188 reviews
8.2entertainment
8.3comfort
8.2food
8.6boarding
8.8crew
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

Crew was ok, but some passengers were a bit rude. Again, all outlets were not working, only the really slow charging usb plug on the entertainment system. Entertainment system was also bugged, some features just crash, the touch screen wasn't working and when trying to watch a movie the onscreen display kept flashing off and on making it very difficult to watch.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

You did not put me on a Korean Air flight! so I do not have nothing to say

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Flight arrived early, fantastic, since it is short flight, no food being served

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

The made us waiting and held our passports and boarding pass making us miss our flights

Not impressed. Only allowed one carry on on such a long flight.

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bad experience with the delay n long wait time for connecting flight after missing the connection flight from Doha.

Wore experience due to delay and took me 3 days to reach my destination.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

Excellent will be flying again in May with Qatar. to Botswana.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

So so. Terrible aircraft choice for that leg of the flight.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Flight from PHL to PHX arrived 50 minutes early and a gate was available. First class flight attendant Stephanie was very friendly and polite. Sanitizing wipes should be provided with meals in addition to refresher towels.

flight delayed so missed connection and this had to rebook for next day

Flight departed PHL one hour late due to late arrival of aircraft. On board services were okay. First class menu does not offer any new items; same desserts (cheese & crackers or Mango sorbet). At least there were no credit card promotions during the flight.

After sitting on plane for 7+ hours, flight was canceled. And to makes matters worse, my suitcase is in baggage hell!

Some of the crew members were rude for no good reason

Terrible Ticketing and Check in process. I learned that AA unilaterally cancelled my premium seating from PHL to CLT and from CLT to JAN. They did, however, refund my money, but my seating was subsequently severely downgraded. They didn’t have a seat for my unless I paid for it! Not cool! Consequently, Check-in took 45 min. AA is usually great, but this was my worst experience with AA ever. Appalling they they arbitrarily cancel my seats threatening loss of flight if I didn’t pay for a seat!!!! -John

We liked quick boarding and on time departure. Seats were very uncomfortable.

Great flight. Quick boarding and departure. No problems. Flight crew were very friendly and professional.

Book cheap flights from Philadelphia to Southeast Asia

Recent round-trip flight deals

9/22Sun
1 stopQatar Airways
30h 10mPHL-SGN
10/14Mon
1 stopQatar Airways
40h 20mSGN-PHL
$1,057
10/11Fri
1 stopQatar Airways
37h 25mPHL-MNL
10/22Tue
1 stopQatar Airways
41h 00mMNL-PHL
$1,066
9/1Sun
2 stopsAmerican Airlines
38h 02mPHL-SGN
9/30Mon
1 stopAmerican Airlines
29h 55mSGN-PHL
$1,121
9/1Sun
1 stopAmerican Airlines
30h 10mPHL-SGN
9/30Mon
1 stopAmerican Airlines
40h 20mSGN-PHL
$1,124
9/1Sun
3 stopsUnited Airlines
45h 30mPHL-SGN
9/30Mon
2 stopsUnited Airlines
37h 00mSGN-PHL
$1,230
8/22Thu
3 stopsUnited Airlines
45h 30mPHL-SGN
9/24Tue
2 stopsUnited Airlines
29h 26mSGN-PHL
$1,235
9/19Thu
2 stopsKorean Air
26h 50mPHL-SGN
10/17Thu
2 stopsKorean Air
26h 53mSGN-PHL
$1,386
10/11Fri
2 stopsKorean Air
27h 10mPHL-MNL
10/21Mon
2 stopsKorean Air
27h 01mMNL-PHL
$1,463
7/26Fri
2 stopsDelta
30h 05mPHL-SGN
8/28Wed
2 stopsDelta
35h 47mSGN-PHL
$1,884
6/8Sat
2 stopsDelta
42h 34mPHL-SGN
6/14Fri
2 stopsDelta
27h 47mSGN-PHL
$1,991

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Recent one-way flight deals

9/10Tue
2 stops
43h 31mPHL-BKK
$645
8/3Sat
2 stopsUnited Airlines
50h 25mPHL-SGN
$650
5/5Sun
1 stopQatar Airways
23h 40mPHL-MNL
$661
5/5Sun
1 stopQatar Airways
22h 25mPHL-BKK
$692
7/4Thu
2 stopsTurkish Airlines
38h 40mPHL-CGK
$695
5/14Tue
2 stopsTurkish Airlines
38h 49mPHL-MNL
$700
5/1Wed
2 stopsAmerican Airlines
31h 30mPHL-KUL
$776
6/2Sun
2 stopsAmerican Airlines
37h 20mPHL-KUL
$1,088
9/15Sun
3 stopsJapan Airlines
48h 20mPHL-DPS
$3,831
9/15Sun
3 stopsJapan Airlines
48h 20mPHL-DPS
$3,832

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Last minute flights from Philadelphia to Southeast Asia

Last minute flight, train and bus deals

4/27Sat
multi-stop
41h 21mPHL-BKK
5/3Fri
multi-stop
32h 36mBKK-PHL
$1,373
4/27Sat
multi-stop
28h 10mPHL-BKK
5/2Thu
multi-stop
27h 38mBKK-PHL
$1,398
4/29Mon
multi-stopUnited Airlines
24h 05mPHL-SIN
5/6Mon
multi-stopUnited Airlines
22h 35mSIN-PHL
$1,517
4/30Tue
multi-stopUnited Airlines
27h 03mPHL-SIN
5/7Tue
multi-stopUnited Airlines
25h 43mSIN-PHL
$1,522
5/1Wed
multi-stopQatar Airways
41h 12mPHL-MNL
5/8Wed
multi-stopQatar Airways
27h 40mMNL-PHL
$1,568
5/1Wed
multi-stopQatar Airways
35h 20mPHL-BKK
5/15Wed
multi-stopQatar Airways
41h 12mBKK-PHL
$1,572
4/29Mon
multi-stopAmerican Airlines
36h 00mPHL-SIN
5/5Sun
multi-stopAmerican Airlines
33h 40mSIN-PHL
$1,755
4/29Mon
multi-stopAmerican Airlines
35h 55mPHL-SIN
5/5Sun
multi-stopAmerican Airlines
33h 40mSIN-PHL
$1,757
4/28Sun
multi-stopKorean Air
29h 34mPHL-MNL
4/30Tue
multi-stopKorean Air
27h 01mMNL-PHL
$2,574
5/1Wed
multi-stopKorean Air
27h 50mPHL-MNL
5/7Tue
multi-stopKorean Air
27h 08mMNL-PHL
$2,624

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Philadelphia - Southeast Asia Flights