$625 Find Cheap Flights from Bangkok to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bangkok to Illinois departing on 11/19. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Bangkok to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$1,007
Peoria
Peoria2 stops$1,302
St. Louis
St. Louis2 stops$1,081
Chicago
Chicago1 stop$1,007
Peoria
Peoria2 stops$1,302
St. Louis
St. Louis2 stops$1,081

Book Cheap Bangkok to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bangkok to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bangkok to Illinois

Tue, Oct 20 - Tue, Dec 8
Korean Air Logo
11:30 pm - 9:30 am
BKK
-
ORD
22h 00m
1 stop
Korean Air Logo
11:15 am - 12:45 am
ORD
-
BKK
24h 30m
1 stop
$1,007Korean Air
Thu, Sep 3 - Wed, Sep 16
Delta Logo
9:40 pm - 6:33 pm
BKK
-
MDW
32h 53m
2 stops
Delta Logo
9:59 am - 11:35 pm
MDW
-
BKK
25h 36m
2 stops
$1,016Delta
Tue, Oct 20 - Tue, Dec 8
Korean Air Logo
9:40 pm - 9:30 am
BKK
-
ORD
23h 50m
1 stop
Korean Air Logo
11:15 am - 11:20 pm
ORD
-
BKK
23h 05m
1 stop
$1,018Korean Air
Fri, Sep 4 - Fri, Sep 25
United Airlines Logo
7:00 am - 2:55 pm
BKK
-
ORD
19h 55m
1 stop
United Airlines Logo
6:06 pm - 9:35 am
ORD
-
BKK
27h 29m
2 stops
$1,027United Airlines
Mon, Oct 19 - Mon, Oct 26
United Airlines Logo
9:35 am - 11:46 am
BKK
-
ORD
38h 11m
2 stops
United Airlines Logo
2:18 pm - 11:30 am
ORD
-
BKK
33h 12m
3 stops
$1,029United Airlines
Wed, Sep 23 - Mon, Oct 19
Air Canada Logo
7:05 am - 2:43 pm
BKK
-
ORD
19h 38m
1 stop
Air Canada Logo
3:40 pm - 5:05 am
ORD
-
BKK
25h 25m
1 stop
$1,030Air Canada
Wed, Oct 28 - Wed, Nov 4
Cathay Pacific Logo
7:55 am - 11:46 pm
BKK
-
STL
27h 51m
2 stops
Cathay Pacific Logo
11:39 am - 10:40 am
STL
-
BKK
34h 01m
2 stops
$1,081Cathay Pacific
Wed, Oct 28 - Fri, Nov 6
Multiple Airlines Logo
10:55 am - 12:35 pm
BKK
-
STL
37h 40m
2 stops
Multiple Airlines Logo
7:20 pm - 4:45 pm
STL
-
BKK
32h 25m
2 stops
$1,098Multiple Airlines
Tue, Oct 27 - Thu, Nov 5
Multiple Airlines Logo
2:35 am - 11:25 pm
BKK
-
STL
32h 50m
2 stops
Multiple Airlines Logo
3:11 pm - 1:05 pm
STL
-
BKK
32h 54m
2 stops
$1,113Multiple Airlines
Mon, Aug 10 - Fri, Aug 28
Cathay Pacific Logo
7:10 pm - 11:42 pm
BKK
-
STL
40h 32m
2 stops
Cathay Pacific Logo
10:16 am - 10:00 am
STL
-
BKK
35h 44m
2 stops
$1,143Cathay Pacific
Booking Insights

KAYAK's insights & trends for Bangkok to Illinois flights

Get data-powered insights and trends into flights from Bangkok to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Bangkok Suvarnabhumi Airport to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Bangkok Suvarnabhumi Airport to Illinois departing in October.

What is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bangkok Suvarnabhumi Airport to Illinois is February, when tickets cost $372 (return) on average. On the other hand, the most expensive months are April and May, when the average cost of round-trip tickets is $997 and $975 respectively.

How far in advance should I book a flight from Bangkok Suvarnabhumi Airport to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Bangkok Suvarnabhumi Airport to Illinois, you should book around 2 weeks before departure, which saves you about 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Find deals

Good to know

Low seasonOctober
Cheapest flight$625
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Bangkok to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Bangkok to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bangkok to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bangkok to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Bangkok to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bangkok to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Bangkok to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Bangkok to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Bangkok to Illinois

Information on your arrival and departure airports

Bangkok (BKK)