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฿4,046+ Cheap flights from Chicago

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — BKK
19 Jul — 26 Jul1
1 adult

What to know about flights from Chicago

Discover essential information about flights departing from Chicago, including flight schedules, destinations, airlines operating at the Chicago airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 14 July 2025.

Good round-trip deal

฿6,881 or less

Good one-way deal

฿2,636 or less
Price to beat on a round-trip flight from Chicago.
Price to beat on a one-way flight from Chicago.

Find flights from Chicago

Cheapest flights from Chicago
Explore the most affordable flight options available from Chicago. Find the lowest fares based on data from user searches, with prices last updated on 14 July 2025.

Wed 27/817:45ORD - CEI
2 stops36h 35mMultiple Airlines
Wed 3/910:10CEI - ORD
2 stops34h 30mMultiple Airlines
Deal found 13/7฿22,074
Wed 3/912:00ORD - HKT
1 stop43h 05mAir India
Thu 11/920:25HKT - ORD
1 stop23h 00mAir India
Deal found 13/7฿22,300
Tue 26/816:00ORD - HKT
1 stop30h 50mCathay Pacific
Tue 2/911:50HKT - ORD
1 stop38h 35mCathay Pacific
Deal found 12/7฿22,527
Wed 27/817:45ORD - CNX
2 stops29h 30mMultiple Airlines
Wed 3/915:30CNX - ORD
2 stops29h 10mMultiple Airlines
Deal found 13/7฿23,077
Wed 27/817:45ORD - HKT
2 stops27h 50mMultiple Airlines
Wed 3/916:55HKT - ORD
2 stops27h 45mMultiple Airlines
Deal found 13/7฿23,401
Tue 6/116:25ORD - BKK
1 stop34h 55mANA
Wed 28/122:50BKK - ORD
2 stops28h 22mANA
Deal found 10/7฿24,113
Thu 9/1012:00ORD - BKK
1 stop20h 25mAir India
Thu 16/1015:15BKK - ORD
1 stop28h 10mAir India
Deal found 13/7฿24,145
Thu 28/816:00ORD - BKK
1 stop19h 50mCathay Pacific
Sat 13/911:00BKK - ORD
1 stop39h 25mCathay Pacific
Deal found 12/7฿24,178
Sat 23/817:45ORD - BKK
1 stop22h 50mUnited Airlines
Wed 21/109:25BKK - ORD
1 stop34h 55mUnited Airlines
Deal found 10/7฿24,210
Sun 2/1111:05ORD - BKK
1 stop37h 10mKorean Air
Tue 11/1101:00BKK - ORD
1 stop20h 30mKorean Air
Deal found 11/7฿24,663
Fri 15/806:30ORD - BKK
2 stops29h 25mMultiple Airlines
Thu 4/907:00BKK - ORD
1 stop19h 55mMultiple Airlines
Deal found 13/7฿25,084
Wed 27/817:45ORD - KBV
2 stops38h 30mMultiple Airlines
Wed 3/920:45KBV - ORD
2 stops30h 10mMultiple Airlines
Deal found 13/7฿25,602

Find flights from Chicago within your budget

Find flights departing from Chicago that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 14 July 2025. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Suvarnabhumi

Route

Depart

Return

Price

ChicagoChiang Rai

ORD - CEI

ORDCEI

Chicago O'Hare Intl

Wed 27/8

17:45-18:20

2 stops36h 35m

Chiang Rai

Wed 3/9

10:10-08:40

2 stops34h 30m

฿22,074

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Wed 3/9

12:00-19:05

1 stop43h 05m

Phuket City

Thu 11/9

20:25-07:25

1 stop23h 00m

฿22,300

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 26/8

16:00-10:50

1 stop30h 50m

Phuket City

Tue 2/9

11:50-14:25

1 stop38h 35m

฿22,527

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 27/8

17:45-11:15

2 stops29h 30m

Chiang Mai

Wed 3/9

15:30-08:40

2 stops29h 10m

฿23,077

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Wed 27/8

17:45-09:35

2 stops27h 50m

Phuket City

Wed 3/9

16:55-08:40

2 stops27h 45m

฿23,401

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 6/1

16:25-16:20

1 stop34h 55m

Bangkok Suvarnabhumi

Tue 20/1

22:50-14:12

2 stops28h 22m

฿24,113

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 30/8

16:00-23:50

1 stop19h 50m

Bangkok Suvarnabhumi

Mon 8/9

19:00-14:25

1 stop31h 25m

฿24,145

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 17/8

12:50-04:35

1 stop27h 45m

Bangkok Suvarnabhumi

Sun 8/2

09:25-07:20

1 stop34h 55m

฿24,210

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 18/8

12:15-07:40

1 stop31h 25m

Bangkok Suvarnabhumi

Fri 29/8

22:25-10:15

2 stops47h 50m

฿24,372

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 19/8

12:30-01:05

1 stop24h 35m

Bangkok Suvarnabhumi

Tue 26/8

21:40-09:40

1 stop24h 00m

฿24,598

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 60 results
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Best time to book a flight from Chicago

Have a flexible travel schedule? Discover the best time to fly from Chicago with our price prediction graph.
Estimated return 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 Chicago

Get recent, data-driven insights about flights from Chicago including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Chicago?

Use this chart to determine the optimal time to book a return flight from Chicago to Suvarnabhumi. Price data was last updated on 11 July 2025.

Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago?

Currently, September is the cheapest month in which you can book a flight from Chicago (average of ฿22,074). Flying from Chicago in June will prove the most costly (average of ฿31,395). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Chicago?

Use this chart to determine the cheapest time to fly return from Chicago to Suvarnabhumi. Price data was last updated on 22 September 2024.

Those who are seeking the cheapest fare on flights departing from Chicago would be wise to consider leaving during Thursday at midday when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Tuesday at midday when fares are usually the most expensive.

Airline reviews for flights from Chicago

Get insights into the airlines that provide service from Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Chicago. In the last 7 days, Cheapflights users made a total of 17,341 searches.
Get a feel of what it's like to fly with ANA, Korean Air, andJapan Airlines from Chicago by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.7

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.4
Very Good

Food

7.7

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Food

7.7

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Food

7.7

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Food

7.7

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Food

7.7

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

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Related info for your journey

Access useful and relevant information related to your journey from Chicago. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 14 July 2025.
  • What are the most popular destinations to fly to from Chicago?

    The most selected flight destinations from Chicago for the current month are Athens, Boston, Amman. While Atlanta, Boston, Mumbai are the top choices made by travellers year-round.

  • Which is the cheapest airport to catch a flight from Chicago?

    Chicago O'Hare Intl airport offers the cheapest routes to Bangkok, from ฿21,329; whereas Chicago Midway airport is typically cheaper if you're flying to Bangkok, from ฿27,479. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What is the cheapest month to fly from Chicago?

    At the present moment the cheapest month to fly from Chicago is currently September; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Chicago?

    Here are some of the cheapest flight destinations from Chicago:
    Fly from Chicago to Bangkok from ฿21,329

  • How does Cheapflights help users find flights from Chicago?

    Cheapflights helps you search for flights from Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from Chicago?

    Cheapflights helps you find that perfect flight from Chicago by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from Chicago with no change fees?

    Yes! Cheapflights helps users easily find flights from Chicago with no change fees.

  • Can Cheapflights notify me if prices for flights from Chicago become cheaper?

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Chicago today and book when you’re ready!

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How does Cheapflights help users find flights from Chicago?

Cheapflights helps you search for flights from Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chicago?

Cheapflights helps you find that perfect flight from Chicago by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Chicago with no change fees?

Yes! Cheapflights helps users easily find flights from Chicago with no change fees.

Can Cheapflights notify me if prices for flights from Chicago become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Chicago today and book when you’re ready!

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