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Pattaya

$396+ Cheap flights from Illinois to Pattaya, Thailand

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Illinois to Pattaya

Cheapest flights from Illinois to Pattaya
Explore the most affordable flight options available from Illinois to Pattaya. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

This Justfly.com deal was found by Cheapflights users on 12/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:30 pmORD - BKK
1 stop35h 40mAir India
Thu 2/55:55 pmBKK - ORD
2 stops30h 35mAir India
Deal found 12/24$920
This Ovago deal was found by Cheapflights users on 12/24. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:35 pmORD - BKK
1 stop31h 40mCathay Pacific
Thu 2/57:55 amBKK - ORD
1 stop18h 00mCathay Pacific
Deal found 12/24$936
This Ovago deal was found by Cheapflights users on 12/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:35 pmORD - BKK
1 stop32h 30mCathay Pacific
Thu 2/57:55 amBKK - ORD
1 stop18h 00mCathay Pacific
Deal found 12/26$960
This KAYAK deal was found by Cheapflights users on 12/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:35 pmORD - BKK
1 stop20h 40mCathay Pacific
Thu 2/57:55 amBKK - ORD
1 stop18h 00mCathay Pacific
Deal found 12/26$965
This oojo deal was found by Cheapflights users on 12/25. 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.
Sun 12/281:30 pmORD - BKK
1 stop41h 50mAir India
Sun 1/258:50 amBKK - ORD
2 stops39h 40mAir India
Deal found 12/25$967
This Ovago deal was found by Cheapflights users on 12/24. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:35 pmORD - BKK
1 stop31h 05mCathay Pacific
Sun 1/257:15 pmBKK - ORD
1 stop30h 40mCathay Pacific
Deal found 12/24$986
This Ovago deal was found by Cheapflights users on 12/24. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:35 pmORD - BKK
1 stop31h 40mCathay Pacific
Thu 4/307:00 pmBKK - ORD
1 stop31h 25mCathay Pacific
Deal found 12/24$1,036
This United Airlines deal was found by Cheapflights users on 12/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:00 amSTL - BKK
3 stops64h 25mUnited Airlines
Sat 1/177:10 amBKK - STL
2 stops27h 50mUnited Airlines
Deal found 12/24$1,548
This oojo deal was found by Cheapflights users on 12/24. 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.
Sat 12/277:00 amSTL - BKK
2 stops39h 10mEVA Air
Sat 1/172:40 pmBKK - STL
2 stops36h 14mEVA Air
Deal found 12/24$1,549
This Delta deal was found by Cheapflights users on 12/26. 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 12/286:00 amMDW - BKK
2 stops29h 55mDelta
Thu 1/1512:55 amBKK - MDW
2 stops29h 42mDelta
Deal found 12/26$1,719
This Ovago deal was found by Cheapflights users on 12/25. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:44 pmSTL - BKK
2 stops32h 11mCathay Pacific
Thu 1/13:05 pmBKK - STL
2 stops44h 51mCathay Pacific
Deal found 12/25$1,848
This United Airlines deal was found by Cheapflights users on 12/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:41 amSTL - BKK
2 stops39h 44mUnited Airlines
Thu 1/14:55 pmBKK - STL
3 stops30h 13mUnited Airlines
Deal found 12/25$1,884

Find flight deals from Illinois to Pattaya

Keep the following information in mind while searching for Illinois to Pattaya flight deals. Data was last updated December 26, 2025.

Round-trip from

$812
(Kiwi.com)

One-way from

$396
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,341
From Illinois to Pattaya
Search Deals
One-way flight from Illinois to Pattaya
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($196 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Pattaya 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 December 26, 2025.
Use the filters below to find and compare flights from Illinois to Pattaya that are best for you.

Fly from

Illinois

Fly to

Pattaya

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 1/28

2:40 pm-11:25 am

2 stops31h 45m

Bangkok Suvarnabhumi

Mon 3/2

4:55 pm-3:10 pm

2 stops35h 15m

$818

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 2/16

2:33 pm-11:25 am

2 stops31h 52m

Bangkok Suvarnabhumi

Mon 3/2

4:55 pm-3:10 pm

2 stops35h 15m

$819

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 1/28

10:41 am-11:25 am

2 stops35h 44m

Bangkok Suvarnabhumi

Mon 2/16

4:55 pm-6:20 am

2 stops26h 25m

$822

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 3/3

6:25 am-12:20 am

2 stops28h 55m

Bangkok Suvarnabhumi

Tue 3/10

4:55 pm-6:20 am

2 stops25h 25m

$826

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 3/2

7:10 am-5:10 am

2 stops33h 00m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-6:19 am

2 stops25h 24m

$831

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 2/15

9:15 pm-11:25 am

2 stops49h 10m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-6:19 am

2 stops25h 24m

$839

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 1/22

10:41 am-11:25 am

2 stops35h 44m

Bangkok Suvarnabhumi

Wed 1/28

4:55 pm-1:15 pm

2 stops33h 20m

$846

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 1/6

8:52 am-11:25 am

3 stops37h 33m

Bangkok Suvarnabhumi

Tue 1/27

4:55 pm-6:30 am

2 stops26h 35m

$850

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 3/27

2:30 pm-2:15 pm

1 stop35h 45m

Bangkok Suvarnabhumi

Sat 4/18

8:40 am-11:10 am

1 stop38h 30m

$853

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 5/1

6:25 am-9:45 am

2 stops39h 20m

Bangkok Suvarnabhumi

Sun 5/31

9:35 am-6:33 pm

2 stops44h 58m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 57 results
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Best time to book a flight from Illinois to Pattaya

Have a flexible travel schedule? Discover the best time to fly to Pattaya from Illinois 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 Illinois to Pattaya

What is the cheapest month to book a flight from Illinois to Pattaya?

Currently, August is the cheapest month in which you can book a flight from Illinois to Pattaya (average of $642). Flying from Illinois to Pattaya in June is currently the most expensive (average of $918). 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.

What is the cheapest time of day to fly from IL to P4T?

Find hourly flight availability from Illinois to Pattaya. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.

It’s typically best to fly out from Illinois to Pattaya in the morning. Doing so could potentially save you 14% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Illinois to Pattaya?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Pattaya. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Pattaya flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How long is the flight from Illinois to Pattaya?

    Departing from Illinois to Pattaya will take you 29h 45m. There are 8559 mi between Illinois and Pattaya. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Pattaya one-way?

    One-way options have recently been found by users for as low as $308 on Air India. Other airlines that offer cheap prices include Turkish Airlines from $345 and Cathay Pacific from $360 one-way.

  • What are the most popular routes from Illinois to Pattaya?

    While some choose either Chicago Midway - Bangkok Suvarnabhumi or Lambert-St Louis - Bangkok Suvarnabhumi, Chicago O'Hare Intl - Bangkok Suvarnabhumi is the most popular route from Illinois to Pattaya.

  • Can I find deals for flights from Illinois to Pattaya that include hotel bookings?

    Yes. In addition to deals on Illinois to Pattaya flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Pattaya?

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

  • Can I find deals for business class flights from Illinois to Pattaya?

    Yes. Cheapflights offers flight deals from Illinois to Pattaya 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 Illinois to Pattaya?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Pattaya (average of $642). Flying from Illinois to Pattaya in June is currently the most expensive (average of $918). 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 Illinois to Pattaya

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Pattaya

Discover the top 10 airlines that operate flights from Illinois to Pattaya. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$625Average$889FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$669Average$881FlexibilityNo cancel feeOn-time72%
ANACheapest$681Average$863FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$698Average$868FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$707Average$892FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$714Average$1,003FlexibilityNo cancel feeOn-time77%
DeltaCheapest$745Average$1,104FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$779Average$1,063FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$825Average$977FlexibilityNo cancel feeOn-time79%
Etihad AirwaysCheapest$832Average$1,142FlexibilityNo cancel feeOn-time75%

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