$556 Cheap Flights from Champaign (CMI) to Bangkok (BKK)

View $556 flight on Mon, Dec 29, 2025Opens in a new window

Popular airlines from Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard) to Suvarnabhumi Intl. Airport (BKK)

Cheap Flights from Champaign to Bangkok (CMI-BKK)

Prices were available within the past 7 days and start at $556 for one-way flights and $932 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Dec 4 - Thu, Dec 18
CMI
Champaign
BKK
Bangkok
$932 Roundtrip, found 3 days ago
$932
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Champaign to Bangkok, returning Thu, Dec 18, priced at $932 found 3 days ago
American Airlines
Tue, Mar 10 - Tue, Mar 17
CMI
Champaign
BKK
Bangkok
$933 Roundtrip, found 3 days ago
$933
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Mar 10 from Champaign to Bangkok, returning Tue, Mar 17, priced at $933 found 3 days ago
American Airlines
Tue, Mar 10 - Tue, Mar 17
CMI
Champaign
BKK
Bangkok
$934 Roundtrip, found 3 days ago
$934
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Mar 10 from Champaign to Bangkok, returning Tue, Mar 17, priced at $934 found 3 days ago
American Airlines
Thu, Dec 4 - Fri, Dec 19
CMI
Champaign
BKK
Bangkok
$972 Roundtrip, found 3 days ago
$972
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Dec 4 from Champaign to Bangkok, returning Fri, Dec 19, priced at $972 found 3 days ago
American Airlines
Sun, Jan 25 - Sat, Feb 7
CMI
Champaign
BKK
Bangkok
$986 Roundtrip, found 3 days ago
$986
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Jan 25 from Champaign to Bangkok, returning Sat, Feb 7, priced at $986 found 3 days ago
American Airlines
Sun, Nov 16 - Tue, Dec 2
CMI
Champaign
BKK
Bangkok
$989 Roundtrip, found 3 days ago
$989
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Nov 16 from Champaign to Bangkok, returning Tue, Dec 2, priced at $989 found 3 days ago
American Airlines
Sun, Jan 25 - Tue, Feb 3
CMI
Champaign
BKK
Bangkok
$990 Roundtrip, found 3 days ago
$990
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Jan 25 from Champaign to Bangkok, returning Tue, Feb 3, priced at $990 found 3 days ago
American Airlines
Mon, Jan 19 - Sat, Feb 7
CMI
Champaign
BKK
Bangkok
$994 Roundtrip, found 3 days ago
$994
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Jan 19 from Champaign to Bangkok, returning Sat, Feb 7, priced at $994 found 3 days ago
Qatar Airways
Tue, Mar 10 - Tue, Mar 17
CMI
Champaign
BKK
Bangkok
$1,364 Roundtrip, found 3 days ago
$1,364
Roundtrip
found 3 days ago
Select Qatar Airways flight, departing Tue, Mar 10 from Champaign to Bangkok, returning Tue, Mar 17, priced at $1,364 found 3 days ago
British Airways
Sun, Jan 4 - Fri, Jan 16
CMI
Champaign
BKK
Bangkok
$2,179 Roundtrip, found 2 days ago
$2,179
Roundtrip
found 2 days ago
Select British Airways flight, departing Sun, Jan 4 from Champaign to Bangkok, returning Fri, Jan 16, priced at $2,179 found 2 days ago

Find the cheapest month to fly from Champaign (CMI) to Bangkok (BKK)

December is typically the cheapest month to fly

From $946 - $2,880 per traveler.

Graph displaying average flight prices per month

Flights from Champaign (CMI) to Bangkok (BKK)
Origin airport
University Of Illinois Urbana-Champaign Williard
Destination airport
Suvarnabhumi Intl.
Roundtrip price
$931
Distance
8679 mi

Champaign to Bangkok Flights

The cheapest times to fly from Champaign to Bangkok

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 Champaign to Bangkok are during the month of December. You can find some of the cheapest flights from Champaign to Bangkok with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Champaign to Bangkok

Sunday is one of the best days to book for cheap flights from Champaign to Bangkok: 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 Champaign to Bangkok

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 Champaign to Bangkok in 2025. You can also book with separate airlines for your outbound and return journeys, from $556 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 Champaign to Bangkok 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 Champaign to Bangkok 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.

 

Frequently asked questions

How much does a flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK) cost?
Lock in a cheap one-way flight from $556 or cheap return flight from $932 from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK)?
December is the cheapest month to fly from CMI to BKK. Traveling during an off-peak travel window is often the key to scoring lower fares.
What is the cheapest airline that flies from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest CMI to BKK flight.
How many flights per day from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK)?
You'll have to hop on a flight with a layover when traveling from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK). 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 CMI to BKK?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK)?
To land at Suvarnabhumi Intl. Airport (BKK) on time, book a flight that leaves University Of Illinois Urbana-Champaign Williard Airport (CMI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK) last-minute?
Booking your ticket from CMI to BKK just before your trip is generally more expensive. But if you're flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a CMI to BKK flight and hotel package?
You'll generally save money by securing a CMI to BKK flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your preferred accommodations and flights, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Suvarnabhumi Intl. Airport (BKK)?
In most cases, you can cancel or modify your CMI to BKK flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.