HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Asia

$459+ Cheap flights from Illinois to Southeast Asia

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Southeast Asia 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 Illinois to Southeast Asia

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Southeast Asia (zzYJX). 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 January 21, 2025.

Round-trip from

$783
(oojo)

One-way from

$468
(Kiwi.com)
From Illinois to Southeast Asia
Search Deals
One-way flight from Illinois to Southeast Asia
Search Deals

Find flight deals from Illinois to Southeast Asia

Cheapest flights from Illinois to Southeast Asia
Explore the most affordable flight options available from Illinois to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This oojo deal was found by Cheapflights users on 1/19. 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 4/97:50 pmORD - KUL
1 stop32h 00mTurkish Airlines
Wed 5/1411:05 pmKUL - ORD
1 stop23h 45mTurkish Airlines
Deal found 1/19$783
This flugladen.de deal was found by Cheapflights users on 1/20. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1912:00 pmORD - BKK
1 stop20h 00mAir India
Wed 3/263:05 pmBKK - ORD
1 stop28h 25mAir India
Deal found 1/20$826
This Gotogate deal was found by Cheapflights users on 1/20. 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.
Tue 3/1112:25 pmORD - BKK
1 stop36h 50mKorean Air
Tue 3/189:30 pmBKK - ORD
1 stop24h 10mKorean Air
Deal found 1/20$828
This lol.travel deal was found by Cheapflights users on 1/20. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/166:10 pmORD - KUL
2 stops40h 05mANA
Mon 3/32:15 pmKUL - ORD
2 stops52h 37mANA
Deal found 1/20$828
This United deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1710:30 amORD - KUL
1 stop23h 45mUnited Airlines
Mon 9/292:15 pmKUL - ORD
1 stop37h 55mUnited Airlines
Deal found 1/20$842
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/106:17 pmORD - KUL
2 stops26h 13mMultiple Airlines
Tue 3/256:40 pmKUL - ORD
2 stops24h 37mMultiple Airlines
Deal found 1/21$845
This FlightHub deal was found by Cheapflights users on 1/20. 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 1/202:40 pmORD - BKK
1 stop20h 30mCathay Pacific
Tue 1/286:40 amBKK - ORD
1 stop19h 20mCathay Pacific
Deal found 1/20$846
This Justfly.com deal was found by Cheapflights users on 1/20. 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.
Tue 1/214:25 pmORD - BKK
1 stop23h 45mANA
Tue 1/283:15 pmBKK - ORD
1 stop29h 05mANA
Deal found 1/20$849
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 9/412:40 pmORD - BKK
1 stop27h 55mUnited Airlines
Mon 9/89:35 amBKK - ORD
2 stops38h 03mUnited Airlines
Deal found 1/20$851
This Ovago deal was found by Cheapflights users on 1/20. 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 11/1512:00 pmORD - KUL
1 stop42h 55mAir India
Sat 11/298:05 amKUL - ORD
1 stop36h 25mAir India
Deal found 1/20$853
This lol.travel deal was found by Cheapflights users on 1/20. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1611:25 amORD - KUL
1 stop44h 55mKorean Air
Mon 3/311:55 pmKUL - ORD
1 stop22h 45mKorean Air
Deal found 1/20$857
This United deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/217:15 amORD - BKK
2 stops27h 50mMultiple Airlines
Tue 1/283:15 pmBKK - ORD
1 stop29h 05mMultiple Airlines
Deal found 1/20$863

Find flights from Illinois to Southeast Asia within your budget

Customize your flight search to find flights from Illinois to Southeast Asia 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoKuala Lumpur

ORD - KUL

ORDKUL

Chicago O'Hare Intl

Wed 4/9

7:50 pm-4:50 pm

1 stop32h 00m

Kuala Lumpur Intl

Wed 5/14

11:05 pm-9:50 am

1 stop23h 45m

$783

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 3/19

12:00 pm-8:00 pm

1 stop20h 00m

Bangkok Suvarnabhumi

Wed 3/26

3:05 pm-7:30 am

1 stop28h 25m

$826

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 3/11

12:25 pm-1:15 pm

1 stop36h 50m

Bangkok Suvarnabhumi

Tue 3/18

9:30 pm-9:40 am

1 stop24h 10m

$828

ChicagoKuala Lumpur

ORD - KUL

ORDKUL

Chicago O'Hare Intl

Sun 2/16

6:10 pm-12:15 am

2 stops40h 05m

Kuala Lumpur Intl

Mon 3/3

2:15 pm-4:52 am

2 stops52h 37m

$828

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 2/18

2:40 pm-10:40 am

1 stop31h 00m

Bangkok Suvarnabhumi

Mon 3/10

7:15 pm-2:00 pm

1 stop30h 45m

$830

ChicagoKuala Lumpur

ORD - KUL

ORDKUL

Chicago O'Hare Intl

Mon 2/17

10:30 am-12:15 am

1 stop23h 45m

Kuala Lumpur Intl

Mon 9/29

2:15 pm-3:10 pm

1 stop37h 55m

$842

ChicagoKuala Lumpur

ORD - KUL

ORDKUL

Chicago O'Hare Intl

Mon 3/10

6:17 pm-9:30 am

2 stops26h 13m

Kuala Lumpur Intl

Tue 3/25

6:40 pm-6:17 am

2 stops24h 37m

$845

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 5/14

7:00 am-4:35 am

3 stops33h 35m

Bangkok Suvarnabhumi

Mon 5/19

9:35 am-8:40 am

1 stop35h 05m

$846

ChicagoKuala Lumpur

ORD - KUL

ORDKUL

Chicago O'Hare Intl

Sun 2/16

11:25 am-10:20 pm

1 stop44h 55m

Kuala Lumpur Intl

Mon 3/3

11:55 pm-8:40 am

1 stop22h 45m

$857

ChicagoManila

ORD - MNL

ORDMNL

Chicago O'Hare Intl

Wed 5/7

7:50 pm-6:40 pm

1 stop33h 50m

Manila Ninoy Aquino Intl

Wed 5/14

9:25 pm-9:50 am

1 stop25h 25m

$864

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia 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.

Travel insights for flights from Illinois to Southeast Asia

Get recent, data-driven insights about flights from Illinois to Southeast Asia including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Southeast Asia (average of $996). Flying from Illinois to Southeast Asia in June is currently the most expensive (average of $1,585). 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 YJX?

Find hourly flight availability from Illinois to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Southeast Asia as you normally would.

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Asia ranges from 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Southeast Asia when rainfall is around 0.4 in.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. 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 Southeast Asia. Reviews last updated January 21, 2025.
Read through reviews of airlines operating flights from Illinois to Southeast Asia, such as Korean Air, Cathay Pacific and EVA Air. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

EVA Air
8.4
Very good
1,253 reviews
Korean Air
8.5
Very good
1,039 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very good
1,328 reviews
Korean Air
8.5
Very good
1,039 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Southeast Asia. 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 Illinois to Southeast Asia one-way?

    The cheapest airline one-way is Air India, with whom users have recently found tickets for as low as $471. However, be on the lookout for offers from Korean Air and Turkish Airlines, as they are both options that can get you from Illinois to Southeast Asia for a low price.

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

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

  • How can I find direct flights from Illinois to Southeast Asia?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Southeast Asia 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 Southeast Asia?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Southeast Asia (average of $996). Flying from Illinois to Southeast Asia in June is currently the most expensive (average of $1,585). 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 Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Haneda flights
John F Kennedy Intl to Haneda flights
Los Angeles to Narita flights
Newark to Narita flights
Newark to Haneda flights
San Francisco to Haneda flights
Seattle to Narita flights
Seattle to Haneda flights
San Francisco to Narita flights
Los Angeles to Manila flights
John F Kennedy Intl to Narita flights
Dallas/Fort Worth to Narita flights
John F Kennedy Intl to Suvarnabhumi flights
Dallas/Fort Worth to Haneda flights
O'Hare Intl to Narita flights
O'Hare Intl to Haneda flights
San Francisco to Manila flights
Los Angeles to Suvarnabhumi flights
San Francisco to New Delhi flights
LaGuardia to Narita flights
Newark to New Delhi flights
Dulles Intl to Haneda flights
LaGuardia to Haneda flights
Ontario to Narita flights
John F Kennedy Intl to New Delhi flights
Hobby to Narita flights
Hobby to Haneda flights
Los Angeles to Incheon Intl flights
Atlanta to Haneda flights
Boston to Narita flights
Ontario to Haneda flights
John F Kennedy Intl to Incheon Intl flights
John F Kennedy Intl to Hong Kong flights
Newark to Suvarnabhumi flights
Seattle to Suvarnabhumi flights
Los Angeles to Taiwan Taoyuan Intl flights
George Bush Intcntl to Haneda flights
San Francisco to Hong Kong flights
Dulles Intl to Narita flights
Denver to Narita flights
LaGuardia to Suvarnabhumi flights
George Bush Intcntl to Narita flights
John F Kennedy Intl to Hongqiao Intl flights
San Francisco to Suvarnabhumi flights
O'Hare Intl to Suvarnabhumi flights
Dallas/Fort Worth to Incheon Intl flights
Los Angeles to Ho Chi Minh City flights
John F Kennedy Intl to Manila flights
LaGuardia to New Delhi flights
San Francisco to Taiwan Taoyuan Intl flights

Top 10 airlines flying from Illinois to Southeast Asia

Discover the top 10 airlines that operate flights from Illinois to Southeast Asia. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,374FlexibilityNo cancel feeOn-time75%
Cathay PacificCheapest$733Average$1,017FlexibilityNo cancel feeOn-time72%
Japan AirlinesCheapest$741Average$1,165FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$744Average$990FlexibilityNo cancel feeOn-time77%
Air IndiaCheapest$797Average$979FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$810Average$1,256FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$821Average$1,345FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$841Average$1,457FlexibilityNo cancel feeOn-time69%
ANACheapest$843Average$1,325FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$856Average$1,286FlexibilityNo cancel feeOn-time71%
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.