HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Asia

$397+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Apr 29 — May 61
Tue 4/29
Tue 5/6
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

Keep the following information in mind while searching for Illinois to Southeast Asia flight deals. Data was last updated April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$866
(United Airlines)

One-way from

$397
(StudentUniverse)

Popular in

December

Cheapest in

September

Average price

$940
Provider with most accurate pricing for Chicago (CHI)-Manila Ninoy Aquino Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Manila Ninoy Aquino Intl flights.
Search Deals
From Illinois to Southeast Asia
Search Deals
One-way flight from Illinois to Southeast Asia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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 April 24, 2025.

This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 9/285:45 pmORD - BKK
1 stop22h 50mUnited Airlines
Sat 10/49:35 amBKK - ORD
2 stops25h 20mUnited Airlines
Deal found 4/23$863
This Korean Air deal was found by Cheapflights users on 4/22. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1212:10 pmORD - BKK
1 stop21h 35mKorean Air
Mon 9/229:40 pmBKK - ORD
1 stop23h 50mKorean Air
Deal found 4/22$866
This Delta deal was found by Cheapflights users on 4/23. 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.
Mon 4/286:45 amORD - BKK
2 stops28h 55mDelta
Sun 5/119:50 amBKK - ORD
2 stops43h 35mDelta
Deal found 4/23$868
This United deal was found by Cheapflights users on 4/23. 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.
Sun 11/99:45 pmORD - BKK
2 stops37h 20mMultiple Airlines
Tue 11/187:10 amBKK - ORD
1 stop19h 40mMultiple Airlines
Deal found 4/23$869
This KAYAK deal was found by Cheapflights users on 4/23. 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.
Thu 10/95:45 pmORD - BKK
1 stop24h 15mANA
Tue 10/217:00 amBKK - ORD
1 stop19h 55mANA
Deal found 4/23$870
This Ovago deal was found by Cheapflights users on 4/23. 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.
Thu 9/114:00 pmORD - BKK
1 stop19h 50mCathay Pacific
Thu 9/255:30 pmBKK - ORD
1 stop32h 55mCathay Pacific
Deal found 4/23$875
This Delta deal was found by Cheapflights users on 4/23. 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 10/59:20 amMDW - BKK
2 stops27h 45mDelta
Fri 10/172:35 amBKK - MDW
2 stops31h 09mDelta
Deal found 4/23$877
This Gurufare deal was found by Cheapflights users on 4/22. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:00 pmORD - MNL
1 stop19h 15mCathay Pacific
Thu 10/165:30 amMNL - ORD
1 stop21h 55mCathay Pacific
Deal found 4/22$890
This China Airlines deal was found by Cheapflights users on 4/23. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:50 pmORD - MNL
2 stops25h 05mMultiple Airlines
Mon 11/104:55 pmMNL - ORD
2 stops26h 09mMultiple Airlines
Deal found 4/23$893
This CrystalTravel deal was found by Cheapflights users on 4/22. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2912:30 amORD - MNL
1 stop22h 10mEVA Air
Wed 10/1512:40 pmMNL - ORD
1 stop21h 05mEVA Air
Deal found 4/22$898
This KAYAK deal was found by Cheapflights users on 4/23. 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 8/411:50 amORD - MNL
1 stop20h 25mANA
Tue 9/22:40 pmMNL - ORD
1 stop37h 30mANA
Deal found 4/23$901
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 8/279:30 amORD - MNL
2 stops22h 40mUnited Airlines
Mon 9/158:40 amMNL - ORD
1 stop25h 44mUnited Airlines
Deal found 4/23$902

Cheapflights Fare Finder

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 April 24, 2025.
Use the filters below to find and compare flights from Illinois to Southeast Asia that are best for you.

Fly from

Illinois

Fly to

Southeast Asia

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 9/28

5:45 pm-4:35 am

1 stop22h 50m

Bangkok Suvarnabhumi

Sat 10/4

9:35 am-10:55 pm

2 stops25h 20m

$863

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 9/12

12:10 pm-9:45 pm

1 stop21h 35m

Bangkok Suvarnabhumi

Mon 9/22

9:40 pm-9:30 am

1 stop23h 50m

$866

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 9/14

5:45 pm-4:35 am

1 stop22h 50m

Bangkok Suvarnabhumi

Fri 9/26

7:00 am-2:55 pm

1 stop19h 55m

$868

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 9/11

4:00 pm-11:50 pm

1 stop19h 50m

Bangkok Suvarnabhumi

Thu 9/25

5:30 pm-2:25 pm

1 stop32h 55m

$875

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 9/13

7:15 am-11:25 pm

2 stops28h 10m

Bangkok Suvarnabhumi

Wed 9/17

9:50 am-9:52 pm

2 stops24h 02m

$877

ChicagoManila

ORD - MNL

ORDMNL

Chicago O'Hare Intl

Tue 4/29

4:00 pm-9:35 am

1 stop28h 35m

Manila Ninoy Aquino Intl

Thu 5/29

8:20 pm-2:25 pm

1 stop31h 05m

$890

ChicagoManila

ORD - MNL

ORDMNL

Chicago O'Hare Intl

Sun 4/27

8:45 am-5:55 am

2 stops32h 10m

Manila Ninoy Aquino Intl

Wed 5/7

8:40 am-11:07 pm

2 stops27h 27m

$902

ChicagoManila

ORD - MNL

ORDMNL

Chicago O'Hare Intl

Mon 5/5

12:45 pm-1:30 pm

1 stop35h 45m

Manila Ninoy Aquino Intl

Tue 5/13

2:40 pm-5:04 am

2 stops27h 24m

$908

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 10/14

6:50 pm-9:45 am

2 stops26h 55m

Bangkok Suvarnabhumi

Tue 11/4

2:05 pm-5:04 am

2 stops27h 59m

$909

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 9/30

12:30 am-11:10 am

1 stop22h 40m

Bangkok Suvarnabhumi

Mon 10/6

11:10 am-8:45 pm

1 stop21h 35m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Southeast Asia

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

Currently, March is the cheapest month in which you can book a flight from Illinois to Southeast Asia (average of $958). Flying from Illinois to Southeast Asia in December is currently the most expensive (average of $1,574). 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 April 24, 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 April 24, 2025.
Read through reviews of airlines operating flights from Illinois to Southeast Asia, such as EVA Air, Korean Air and Japan Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,180 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
EVA Air
8.4
Very good
1,180 reviews
EVA Air
8.4
Very good
1,180 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Korean Air
8.4
Very good
1,062 reviews
EVA Air
8.4
Very good
1,180 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Japan Airlines
8.3
Very good
1,452 reviews
EVA Air
8.4
Very good
1,180 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
China Airlines
8.3
Very good
727 reviews
EVA Air
8.4
Very good
1,180 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
ANA
8.3
Very good
853 reviews
EVA Air
8.4
Very good
1,180 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

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 Cathay Pacific, with whom users have recently found tickets for as low as $397. 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, March is the cheapest month in which you can book a flight from Illinois to Southeast Asia (average of $958). Flying from Illinois to Southeast Asia in December is currently the most expensive (average of $1,574). 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
Los Angeles to Narita flights
John F Kennedy Intl to Haneda flights
Newark to Haneda flights
Newark to Narita flights
San Francisco to Haneda flights
San Francisco to Narita flights
Seattle to Narita flights
Los Angeles to Manila flights
John F Kennedy Intl to Narita flights
Seattle to Haneda flights
San Francisco to Manila flights
Dallas/Fort Worth to Narita flights
Dallas/Fort Worth to Haneda flights
Los Angeles to Incheon Intl flights
Dulles Intl to Haneda flights
LaGuardia to Haneda flights
LaGuardia to Narita flights
John F Kennedy Intl to Suvarnabhumi flights
Hobby to Haneda flights
Ontario to Narita flights
O'Hare Intl to Narita flights
Los Angeles to Suvarnabhumi flights
John F Kennedy Intl to Incheon Intl flights
O'Hare Intl to Haneda flights
Boston to Narita flights
San Francisco to New Delhi flights
Atlanta to Haneda flights
Seattle to Suvarnabhumi flights
Newark to New Delhi flights
John F Kennedy Intl to Hong Kong flights
John F Kennedy Intl to New Delhi flights
John F Kennedy Intl to Hongqiao Intl flights
Hobby to Narita flights
Ontario to Haneda flights
Dulles Intl to Narita flights
Seattle to Incheon Intl flights
San Francisco to Hong Kong flights
Dallas/Fort Worth to Suvarnabhumi flights
Burbank to Narita flights
George Bush Intcntl to Haneda flights
San Diego to Narita flights
John F Kennedy Intl to Mumbai flights
John F Kennedy Intl to Manila flights
Denver to Narita flights
Dallas/Fort Worth to Hyderabad flights
John F Kennedy Intl to Taiwan Taoyuan Intl flights
Los Angeles to Ho Chi Minh City flights
Atlanta to Narita flights
San Francisco to Suvarnabhumi 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,554FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$632Average$908FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$733Average$1,068FlexibilityNo cancel feeOn-time72%
IndiGoCheapest$735Average$1,227FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$736Average$1,009FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$741Average$953FlexibilityNo cancel feeOn-time79%
ANACheapest$779Average$1,213FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,197FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$839Average$1,257FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$840Average$1,341FlexibilityNo cancel feeOn-time69%

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.