$474 Find Cheap Flights from Philadelphia to Southeast Asia

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 8/18. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Southeast Asia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Southeast Asia.
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Best Southeast Asia Flight Deals from Philadelphia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop$900
Manila
Manila2 stops$897
Singapore
Singapore2 stops$946
Denpasar
Denpasar1 stop$1,015
Hanoi
Hanoi2 stops$1,050
Phuket City
Phuket City2 stops$835
Cebu City
Cebu City2 stops$976
Da Nang
Da Nang2 stops$969
Phnom Penh
Phnom Penh2 stops$1,264
Chiang Mai
Chiang Mai2 stops$1,103
Angeles City
Angeles City2 stops$1,116
Vientiane
Vientiane2 stops$1,128
Krabi
Krabi2 stops$1,145
Bangkok
Bangkok1 stop$900
Manila
Manila2 stops$897
Singapore
Singapore2 stops$946
Denpasar
Denpasar1 stop$1,015
Hanoi
Hanoi2 stops$1,050
Phuket City
Phuket City2 stops$835
Cebu City
Cebu City2 stops$976
Da Nang
Da Nang2 stops$969
Phnom Penh
Phnom Penh2 stops$1,264
Chiang Mai
Chiang Mai2 stops$1,103
Angeles City
Angeles City2 stops$1,116
Vientiane
Vientiane2 stops$1,128
Krabi
Krabi2 stops$1,145

Cheap Flights from Philadelphia to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Southeast Asia

Sun, Sep 14 - Tue, Oct 21
Iberia Logo
10:10 pm - 6:50 pmPHL-HKT
33h 40m2 stops
Iberia Logo
9:20 am - 4:00 pmHKT-PHL
41h 40m2 stops
$835Iberia
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Sun, Sep 14 - Mon, Oct 20
Iberia Logo
10:10 pm - 6:50 pmPHL-HKT
33h 40m2 stops
Iberia Logo
9:20 am - 4:00 pmHKT-PHL
65h 40m2 stops
$837Iberia
Find Deal
Wed, Sep 10 - Wed, Sep 24
Qatar Airways Logo
8:30 pm - 1:25 pmPHL-BKK
29h 55m1 stop
Qatar Airways Logo
8:00 pm - 9:00 amBKK-PHL
24h 00m1 stop
$900Qatar Airways
Find Deal
Wed, Sep 10 - Tue, Sep 23
Qatar Airways Logo
8:30 pm - 1:25 pmPHL-BKK
29h 55m1 stop
Qatar Airways Logo
2:30 am - 9:00 amBKK-PHL
41h 30m1 stop
$902Qatar Airways
Find Deal
Thu, Oct 2 - Tue, Oct 14
ANA Logo
10:05 am - 4:35 amPHL-BKK
31h 30m2 stops
ANA Logo
9:35 pm - 2:16 pmBKK-PHL
27h 41m2 stops
$932ANA
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Mon, Jul 21 - Mon, Aug 25
United Airlines Logo
6:05 am - 4:35 amPHL-BKK
35h 30m2 stops
United Airlines Logo
9:35 am - 5:21 amBKK-PHL
30h 46m2 stops
$934United Airlines
Find Deal
Mon, Aug 18 - Mon, Aug 25
ANA Logo
6:30 am - 4:35 amPHL-BKK
35h 05m2 stops
ANA Logo
7:00 am - 12:20 amBKK-PHL
28h 20m2 stops
$935ANA
Find Deal
Mon, Nov 3 - Mon, Nov 17
United Airlines Logo
10:05 am - 10:50 amPHL-BKK
36h 45m3 stops
United Airlines Logo
9:25 am - 7:05 pmBKK-PHL
45h 40m2 stops
$937United Airlines
Find Deal
Mon, Oct 20 - Mon, Dec 8
Korean Air Logo
9:30 am - 11:25 pmPHL-BKK
26h 55m2 stops
Korean Air Logo
11:15 pm - 12:38 pmBKK-PHL
25h 23m2 stops
$951Korean Air
Find Deal
Sat, Sep 6 - Fri, Sep 19
Korean Air Logo
6:00 am - 7:55 pmPHL-SIN
49h 55m2 stops
Korean Air Logo
7:30 am - 5:17 pmSIN-PHL
45h 47m2 stops
$962Korean Air
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Useful Info

KAYAK's insights & trends for Philadelphia to Southeast Asia flights

Get data-powered insights and trends into flights from Philadelphia to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Philadelphia to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,109, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Philadelphia to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Southeast Asia is September, when tickets cost $1,118 (return) on average. On the other hand, the most expensive months are August and June, when the average cost of round-trip tickets is $1,850 and $1,677 respectively.

What’s the cheapest day of the week to fly from Philadelphia to Southeast Asia?

The average price of all round-trip flights from Philadelphia to Southeast Asia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Philadelphia to Southeast Asia, look for departures on Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Southeast Asia, Tuesday is the cheapest day to fly and Wednesday is the most expensive.

How far in advance should I book a flight from Philadelphia to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Southeast Asia, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.


Good to know

Low seasonMay
High seasonJanuary
Cheapest flight$474
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 4% 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 from Philadelphia to Southeast Asia 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 from Philadelphia to Southeast Asia with an airline and back 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 from Philadelphia to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the afternoon, when round-trip flights cost $1,590 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,721.

Reviews of the top 5 airlines serving from Philadelphia to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
8.4
Korean AirOverall score based on 1090 reviews
8.7Crew
8.2Entertainment
8.3Comfort
8.1Food
8.5Boarding
Airline reviews

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

10.0 ExcellentAnonymous, May 2025LAS - ICN
Read more Korean Air reviews

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Always have great flight experience on Korean Air. Glad to have been able to book this on Kayak/Under Pricer this year!!

All the food seemed to have onions. I don't eat onions. Anyway, everything else was great. The biggest downside was the underpricer company that purchased the tickets from ANA. Underpricer never provided the United Airlines booking number. ANA was a code share and all our flights were on United. I finally was able get booking numbers from Ujuted on X. They saved me from the upsales underwriter tried to saddle my wife and me with.

Due to turbulence there was no inflight service, which is very understandable, The flight is very short, and safety is more important. There was a bit of a delay with take off, but was to be expected with the rain.

The crew was amazing, really friendly and efficient. One of the best flights I have ever been on. They made the long flight comfortable and I noticed there were two birthdays on the flight. They gave to customers birthday cards and wished them a happy birthday. That was very nice to see.

Everything was great. Wifi was down,but that didn't matter to me.

Hard to explain because we thought we were booking ANA airlines, not ANA operated via United, so we were disappointed, but for what it’s worth, everything went smooth and loved the movie selections. The food was okay, processed and full of preservatives, so vs what we were expecting with ANA it was different

The best best best flight experience I have ever had. And I fly A LOT. THANK YOU, ANA!!!

When booking the flight i picked it because it said flying with ana even on our e-ticket as well but I showed up to the airport and I flew with united. I have flew with both airlines before and I prefer ana for the food quality and comfortable. So I was disappointed in that outcome and felt the food gave me minor ibs. The whole thing was missing leading with not getting what I thought I was paying for. Felt a bait and switched. Do not have confidence in using this app in the future trips

The flight was smooth, but there were not enough options for meals and I was given beef when I do not eat beef. The flight going was much better because we received more snacks.

This was a large plane with an upper deck. It seems like business was upstairs. If it was a US airline then I would say I sat in economy plus, but I think it was just economy. Though since ANA would not allow me to choose seats for the price it may have been plus. Lots of movies to choose from, and good service.

This was the best airline I’ve ever taken. The staff are amazing. The food was great. The pilot was phenomenal. I would highly recommend this airline.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

It’s a great flight. Service is good. Staff is awesome.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

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