HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chiang Mai

$532+ Cheap flights from Philadelphia (PHL) to Chiang Mai (CNX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CNX
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Chiang Mai with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Philadelphia to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Chiang Mai (CNX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 2, 2025.

Round-trip from

$934
(FlightHub)

One-way from

$532
(Korean Air)
From Philadelphia to Chiang Mai
Search Deals
One-way flight from Philadelphia to Chiang Mai
Search Deals

Find flight deals from Philadelphia to Chiang Mai

Cheapest flights from Philadelphia to Chiang Mai
Explore the most affordable flight options available from Philadelphia to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amPHL - CNX
2 stops28h 55mKorean Air
Wed 10/2211:15 pmCNX - PHL
2 stops28h 45mKorean Air
Deal found 7/30$934
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:29 pmPHL - CNX
2 stops39h 26mDelta
Sun 9/2111:15 pmCNX - PHL
2 stops36h 39mDelta
Deal found 7/31$1,088
This Korean Air deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:46 amPHL - CNX
2 stops25h 09mMultiple Airlines
Wed 10/2912:15 amCNX - PHL
2 stops35h 37mMultiple Airlines
Deal found 7/31$1,182
This FlightHub deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:35 pmPHL - CNX
2 stops59h 35mQatar Airways
Thu 10/307:45 pmCNX - PHL
2 stops48h 15mQatar Airways
Deal found 7/31$1,267
This oojo deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:02 amPHL - CNX
2 stops39h 33mEVA Air
Tue 11/2511:50 amCNX - PHL
2 stops29h 43mEVA Air
Deal found 8/1$1,269
This Gurufare deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/184:30 pmPHL - CNX
3 stops38h 20mChina Southern
Thu 9/46:50 pmCNX - PHL
2 stops47h 15mChina Southern
Deal found 8/1$1,760

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Chiang Mai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Philadelphia to Chiang Mai that are best for you.

Fly from

Philadelphia

Fly to

Chiang Mai

Route

Depart

Return

Price

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Sun 9/14

7:29 pm-9:55 pm

2 stops39h 26m

Chiang Mai

Sun 9/21

11:15 pm-12:54 am

2 stops36h 39m

$1,088

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Mon 10/20

9:46 am-9:55 pm

2 stops25h 09m

Chiang Mai

Wed 10/29

12:15 am-12:52 am

2 stops35h 37m

$1,182

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Mon 10/20

9:46 am-9:55 pm

2 stops25h 09m

Chiang Mai

Wed 10/29

12:15 am-12:52 am

2 stops35h 37m

$1,184

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Mon 10/20

8:35 pm-7:10 pm

2 stops59h 35m

Chiang Mai

Thu 10/30

7:45 pm-9:00 am

2 stops48h 15m

$1,267

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Mon 8/18

4:30 pm-5:50 pm

3 stops38h 20m

Chiang Mai

Thu 9/4

6:50 pm-7:05 am

2 stops47h 15m

$1,760

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Tue 10/14

6:00 am-9:55 pm

2 stops28h 55m

$532

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Tue 10/14

7:00 am-11:40 pm

3 stops53h 40m

$538

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Tue 10/14

6:00 am-9:55 pm

2 stops28h 55m

$614

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Tue 10/14

6:40 pm-11:15 am

3 stops29h 35m

$1,197

PhiladelphiaChiang Mai

PHL - CNX

PHLCNX

Philadelphia

Tue 10/14

5:35 pm-7:10 pm

3 stops38h 35m

$2,701

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Best time to book a flight from Philadelphia to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Philadelphia with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Chiang Mai

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

Currently, April is the cheapest month in which you can book a flight from Philadelphia to Chiang Mai (average of $1,010). Flying from Philadelphia to Chiang Mai in December is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated August 2, 2025.
See what other customers who have flown with Korean Air, Delta, and Austrian Airlines from Philadelphia to Chiang Mai have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,122 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,122 reviews
Korean Air
8.4
Very good
1,122 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,983 reviews
Korean Air
8.4
Very good
1,122 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Austrian Airlines
7.6
Good
823 reviews
Korean Air
8.4
Very good
1,122 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Southern
7.6
Good
104 reviews
Korean Air
8.4
Very good
1,122 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Qatar Airways
7.4
Good
3,609 reviews
Korean Air
8.4
Very good
1,122 reviews

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Philadelphia to Chiang Mai one-way?

    $532 is the cheapest one-way deal found within the past few days, from Korean Air. You may also be able to find cheap deals on Delta and Qatar Airways, with prices starting from $614 and $1,197, respectively.

  • Can I find deals for flights from Philadelphia to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Chiang Mai.

  • Can I find deals for business class flights from Philadelphia to Chiang Mai?

    Yes. Cheapflights offers flight deals from Philadelphia to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, April is the cheapest month in which you can book a flight from Philadelphia to Chiang Mai (average of $1,010). Flying from Philadelphia to Chiang Mai in December is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Suvarnabhumi flights
Newark to Suvarnabhumi flights
Dulles Intl to Suvarnabhumi flights
LaGuardia to Suvarnabhumi flights
Reagan-National to Suvarnabhumi flights
John F Kennedy Intl to Phuket City flights
John F Kennedy Intl to Don Mueang Intl flights
Dulles Intl to Don Mueang Intl flights
Philadelphia to Suvarnabhumi flights
Newark to Phuket City flights
LaGuardia to Phuket City flights
Dulles Intl to Ko Samui flights
Dulles Intl to Chiang Mai flights
Dulles Intl to Phuket City flights
Pittsburgh to Suvarnabhumi flights
John F Kennedy Intl to Chiang Mai flights
Newark to Don Mueang Intl flights
Reagan-National to Phuket City flights
Newark to Chiang Mai flights
John F Kennedy Intl to Krabi flights
Philadelphia to Phuket City flights
Newark to Krabi flights
Reagan-National to Chiang Mai flights
John F Kennedy Intl to Rayong flights
Philadelphia to Don Mueang Intl flights
Scranton to Suvarnabhumi flights
John F Kennedy Intl to Ko Samui flights
State College to Suvarnabhumi flights
LaGuardia to Chiang Mai flights
Harrisburg to Suvarnabhumi flights
Newark to Ko Samui flights
Pittsburgh to Phuket City flights
Dulles Intl to Krabi flights
Reagan-National to Ko Samui flights
Newark to Chiang Rai flights
John F Kennedy Intl to Chiang Rai flights
Elmira to Suvarnabhumi flights
LaGuardia to Don Mueang Intl flights
Reagan-National to Krabi flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.