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Pattaya

$358+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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Find 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 November 29, 2025.

This Gotogate deal was found by Cheapflights users on 11/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:25 pmORD - BKK
1 stop34h 55mANA
Thu 12/182:20 pmBKK - ORD
1 stop30h 00mANA
Deal found 11/27$823
This Ovago deal was found by Cheapflights users on 11/28. 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.
Sat 11/291:10 pmORD - BKK
1 stop28h 20mANA
Sun 12/212:20 pmBKK - ORD
1 stop30h 00mANA
Deal found 11/28$828
This United Airlines deal was found by Cheapflights users on 11/28. 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 11/291:00 pmORD - BKK
2 stops33h 25mUnited Airlines
Sat 12/64:55 pmBKK - ORD
2 stops26h 24mUnited Airlines
Deal found 11/28$872
This Ovago deal was found by Cheapflights users on 11/28. 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 11/302:35 pmORD - BKK
1 stop31h 40mCathay Pacific
Wed 12/247:55 amBKK - ORD
1 stop18h 00mCathay Pacific
Deal found 11/28$886
This FlightHub deal was found by Cheapflights users on 11/27. 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.
Thu 11/272:35 pmORD - BKK
1 stop20h 40mCathay Pacific
Thu 12/45:40 pmBKK - ORD
1 stop32h 15mCathay Pacific
Deal found 11/27$903
This United Airlines deal was found by Cheapflights users on 11/27. 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 11/288:47 amORD - BKK
3 stops37h 38mUnited Airlines
Fri 12/54:55 pmBKK - ORD
3 stops39h 00mUnited Airlines
Deal found 11/27$921
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Mon 12/16:25 pmORD - BKK
2 stops28h 00mUnited Airlines
Mon 12/84:55 pmBKK - ORD
2 stops26h 24mUnited Airlines
Deal found 11/28$930
This Ovago deal was found by Cheapflights users on 11/27. 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
Tue 2/177:55 amBKK - ORD
1 stop18h 00mCathay Pacific
Deal found 11/27$936
This CheapOair deal was found by Cheapflights users on 11/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:10 pmORD - BKK
1 stop38h 10mANA
Mon 12/159:10 amBKK - ORD
2 stops34h 09mANA
Deal found 11/26$938
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Mon 12/16:25 pmORD - BKK
2 stops28h 00mUnited Airlines
Mon 12/154:55 pmBKK - ORD
2 stops32h 29mUnited Airlines
Deal found 11/28$939
This CheapOair deal was found by Cheapflights users on 11/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:30 amORD - BKK
1 stop24h 50mANA
Mon 12/159:10 amBKK - ORD
2 stops34h 09mANA
Deal found 11/28$941
This Ovago deal was found by Cheapflights users on 11/28. 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.
Sat 11/298:00 amSTL - BKK
2 stops33h 30mANA
Mon 12/1510:25 pmBKK - STL
2 stops30h 39mANA
Deal found 11/28$1,020

Cheap flight deals from Illinois to Pattaya

Keep the following information in mind while searching for Illinois to Pattaya flight deals. Data was last updated November 29, 2025.

Round-trip from

$819
(United Airlines)

One-way from

$358
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$880
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 ($200 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 29, 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

Thu 1/29

4:10 pm-11:25 am

2 stops30h 15m

Bangkok Suvarnabhumi

Sun 2/15

4:55 pm-5:01 am

2 stops25h 06m

$822

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 4/9

9:15 pm-4:35 am

2 stops43h 20m

Bangkok Suvarnabhumi

Mon 4/20

3:40 pm-5:54 am

2 stops26h 14m

$822

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 1/18

2:40 pm-11:25 am

2 stops31h 45m

Bangkok Suvarnabhumi

Thu 4/16

3:40 pm-5:01 am

2 stops25h 21m

$822

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 1/25

1:10 pm-6:00 pm

1 stop39h 50m

Bangkok Suvarnabhumi

Thu 2/5

9:25 am-7:35 am

1 stop35h 10m

$827

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 1/17

1:10 pm-11:20 pm

1 stop21h 10m

Bangkok Suvarnabhumi

Fri 1/23

2:55 am-7:35 am

1 stop41h 40m

$827

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 1/27

1:10 pm-6:00 pm

1 stop39h 50m

Bangkok Suvarnabhumi

Sun 2/8

8:55 am-7:35 am

1 stop35h 40m

$827

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 2/26

1:10 pm-11:20 pm

1 stop21h 10m

Bangkok Suvarnabhumi

Fri 3/6

2:55 am-7:35 am

1 stop41h 40m

$828

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 1/12

6:29 pm-11:25 am

2 stops27h 56m

Bangkok Suvarnabhumi

Sat 2/14

4:55 pm-9:17 am

3 stops29h 22m

$835

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 4/15

6:20 pm-9:45 am

2 stops27h 25m

Bangkok Suvarnabhumi

Fri 5/8

7:00 am-2:55 pm

1 stop19h 55m

$835

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 2/7

2:35 pm-3:55 pm

1 stop36h 20m

Bangkok Suvarnabhumi

Sat 2/21

7:55 am-12:55 pm

1 stop18h 00m

$838

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 60 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 $872). 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 November 29, 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 30h 15m. There are 8545 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 $451 on Japan Airlines. Other airlines that offer cheap prices include Cathay Pacific from $466 and Delta from $536 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 $872). 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

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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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$626Average$889FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$673Average$872FlexibilityNo cancel feeOn-time72%
ANACheapest$681Average$867FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$698Average$869FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$707Average$889FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$733Average$964FlexibilityNo cancel feeOn-time77%
IndiGoCheapest$735Average$1,260FlexibilityNo cancel feeOn-time80%
DeltaCheapest$745Average$1,111FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$793Average$1,291FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$825Average$980FlexibilityNo cancel feeOn-time79%

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