$517 Cheap Flights from Philadelphia (PHL) to Chiang Mai (CNX)

View $517 flight on Wed, Feb 25, 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX)

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Cheap Flights from Philadelphia to Chiang Mai (PHL-CNX)

Prices were available within the past 7 days and start at $517 for one-way flights and $928 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Feb 25 - Wed, Mar 11
PHL
Philadelphia
CNX
Chiang Mai
$928 Roundtrip, found 1 day ago
$928
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Feb 25 from Philadelphia to Chiang Mai, returning Wed, Mar 11, priced at $928 found 1 day ago
Korean Air
Wed, Nov 19 - Thu, Dec 4
PHL
Philadelphia
CNX
Chiang Mai
$933 Roundtrip, found 6 days ago
$933
Roundtrip
found 6 days ago
Select Korean Air flight, departing Wed, Nov 19 from Philadelphia to Chiang Mai, returning Thu, Dec 4, priced at $933 found 6 days ago
Delta
Wed, Feb 25 - Wed, Mar 11
PHL
Philadelphia
CNX
Chiang Mai
$934 Roundtrip, found 1 day ago
$934
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Feb 25 from Philadelphia to Chiang Mai, returning Wed, Mar 11, priced at $934 found 1 day ago
Delta
Wed, Feb 25 - Wed, Mar 11
PHL
Philadelphia
CNX
Chiang Mai
$935 Roundtrip, found 1 day ago
$935
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Feb 25 from Philadelphia to Chiang Mai, returning Wed, Mar 11, priced at $935 found 1 day ago
Korean Air
Sun, Mar 8 - Thu, Mar 26
PHL
Philadelphia
CNX
Chiang Mai
$940 Roundtrip, found 1 day ago
$940
Roundtrip
found 1 day ago
Select Korean Air flight, departing Sun, Mar 8 from Philadelphia to Chiang Mai, returning Thu, Mar 26, priced at $940 found 1 day ago
Delta
Wed, Feb 25 - Wed, Mar 11
PHL
Philadelphia
CNX
Chiang Mai
$942 Roundtrip, found 1 day ago
$942
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Feb 25 from Philadelphia to Chiang Mai, returning Wed, Mar 11, priced at $942 found 1 day ago
Delta
Mon, Feb 23 - Fri, Mar 13
PHL
Philadelphia
CNX
Chiang Mai
$968 Roundtrip, found 1 day ago
$968
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Feb 23 from Philadelphia to Chiang Mai, returning Fri, Mar 13, priced at $968 found 1 day ago
Qatar Airways
Wed, Feb 25 - Wed, Mar 11
PHL
Philadelphia
CNX
Chiang Mai
$1,000 Roundtrip, found 1 day ago
$1,000
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Wed, Feb 25 from Philadelphia to Chiang Mai, returning Wed, Mar 11, priced at $1,000 found 1 day ago
STARLUX Airlines
Tue, Apr 14 - Tue, Apr 28
PHL
Philadelphia
CNX
Chiang Mai
$1,013 Roundtrip, found 2 days ago
$1,013
Roundtrip
found 2 days ago
Select STARLUX Airlines flight, departing Tue, Apr 14 from Philadelphia to Chiang Mai, returning Tue, Apr 28, priced at $1,013 found 2 days ago
Etihad Airways
Sun, Jan 25 - Mon, Feb 9
PHL
Philadelphia
CNX
Chiang Mai
$1,295 Roundtrip, found 1 day ago
$1,295
Roundtrip
found 1 day ago
Select Etihad Airways flight, departing Sun, Jan 25 from Philadelphia to Chiang Mai, returning Mon, Feb 9, priced at $1,295 found 1 day ago

Alternative airports near Chiang Mai

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chiang Mai Intl. CNX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $1,630
CNX
Chiang Mai Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $1,630

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX) cost?
Secure a cheap one-way flight from $517 or cheap return flight from $928 from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX)?
The cheapest month to fly from PHL to CNX is February, when demand is low. Off-peak season is often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX)?
To find the cheapest airline that'll fly you from PHL to CNX, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX)?
You'll need to catch a flight with a layover when traveling from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from PHL to CNX?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX)?
To avoid potential delays on the Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX) last-minute?
Last-minute bookings from PHL to CNX are typically more expensive. To secure the best rates, start looking for flights as soon as possible. That said, if you can play around with your travel dates, it's possible to find a cheap fare just before your departure.
Is it cheaper to book a PHL to CNX flight and hotel package?
Opting for a PHL to CNX flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our extensive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Chiang Mai Intl. Airport (CNX)?
In most cases, you can cancel or reschedule your PHL to CNX flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need further details, head to our Customer Service portal.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Chiang Mai Intl.
Airlines serving
Delta, Etihad Airways, Korean Air, Malaysia Airlines, Qatar Airways
Roundtrip price
$928
Distance
8367 mi

Book with confidence

Philadelphia to Chiang Mai Flights

The cheapest times to fly from Philadelphia to Chiang Mai

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Chiang Mai are during the month of February. You can find some of the cheapest flights from Philadelphia to Chiang Mai with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Chiang Mai

Sunday is one of the best days to book for cheap flights from Philadelphia to Chiang Mai: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Chiang Mai

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Chiang Mai in 2025. You can also book with separate airlines for your outbound and return journeys, from $517 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Chiang Mai flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Chiang Mai airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to Chiang Mai Flights

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*Available to One Key members.