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$360+ Cheap flights from Illinois to Vietnam

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Illinois to Vietnam

Keep the following information in mind while searching for Illinois to Vietnam flight deals. Data was last updated August 18, 2025.

Round-trip from

$627
(oojo)

One-way from

$360
(oojo)

Popular in

June

Cheapest in

September

Average price

$1,016
From Illinois to Vietnam
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One-way flight from Illinois to Vietnam
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Highest demand for flights based on searches. 17% potential increase in price ($258 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Illinois to Vietnam

Cheapest flights from Illinois to Vietnam
Explore the most affordable flight options available from Illinois to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This oojo deal was found by Cheapflights users on 8/17. 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.
Thu 10/24:00 pmORD - HAN
1 stop38h 05mCathay Pacific
Sun 10/127:05 pmHAN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/17$627
This oojo deal was found by Cheapflights users on 8/17. 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.
Mon 9/294:00 pmORD - HAN
1 stop38h 05mCathay Pacific
Mon 11/107:25 pmHAN - ORD
1 stop30h 35mCathay Pacific
Deal found 8/17$629
This oojo deal was found by Cheapflights users on 8/18. 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.
Mon 9/294:00 pmORD - HAN
1 stop38h 05mCathay Pacific
Wed 11/1211:05 amHAN - ORD
1 stop38h 55mCathay Pacific
Deal found 8/18$635
This Ovago deal was found by Cheapflights users on 8/17. 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 11/202:40 pmORD - HAN
1 stop30h 25mCathay Pacific
Mon 12/17:25 pmHAN - ORD
1 stop30h 35mCathay Pacific
Deal found 8/17$638
This oojo deal was found by Cheapflights users on 8/17. 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.
Tue 9/94:00 pmORD - HAN
1 stop28h 50mCathay Pacific
Wed 10/157:05 pmHAN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/17$645
This Ovago deal was found by Cheapflights users on 8/17. 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.
Tue 9/164:00 pmORD - HAN
1 stop29h 55mCathay Pacific
Tue 10/1410:30 amHAN - ORD
1 stop39h 55mCathay Pacific
Deal found 8/17$653
This FlightHub deal was found by Cheapflights users on 8/17. 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 9/114:00 pmORD - HAN
1 stop35h 35mCathay Pacific
Tue 10/147:05 pmHAN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/17$658
This oojo deal was found by Cheapflights users on 8/17. 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.
Tue 8/264:00 pmORD - HAN
1 stop35h 35mCathay Pacific
Tue 9/167:05 pmHAN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/17$660
This Gurufare deal was found by Cheapflights users on 8/17. 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.
Tue 9/24:00 pmORD - HAN
1 stop29h 55mCathay Pacific
Tue 9/167:05 pmHAN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/17$662
This Gurufare deal was found by Cheapflights users on 8/17. 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.
Mon 9/84:00 pmORD - HAN
1 stop35h 35mCathay Pacific
Mon 10/137:05 pmHAN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/17$663
This Gurufare deal was found by Cheapflights users on 8/18. 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.
Mon 9/84:00 pmORD - SGN
1 stop30h 05mCathay Pacific
Sun 9/216:20 pmSGN - ORD
1 stop32h 05mCathay Pacific
Deal found 8/18$673
This FlightHub deal was found by Cheapflights users on 8/15. 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.
Sat 11/13:40 pmORD - SGN
1 stop38h 55mCathay Pacific
Thu 11/137:15 amSGN - ORD
1 stop18h 45mCathay Pacific
Deal found 8/15$681

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Vietnam 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 August 18, 2025.
Use the filters below to find and compare flights from Illinois to Vietnam that are best for you.

Fly from

Illinois

Fly to

Vietnam

Route

Depart

Return

Price

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Thu 10/2

4:00 pm-6:05 pm

1 stop38h 05m

Hanoi Noibai

Sun 10/12

10:55 am-2:25 pm

1 stop39h 30m

$627

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Mon 9/29

4:00 pm-6:05 pm

1 stop38h 05m

Hanoi Noibai

Mon 11/10

7:25 pm-1:00 pm

1 stop30h 35m

$629

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Mon 9/29

4:00 pm-6:05 pm

1 stop38h 05m

Hanoi Noibai

Mon 11/3

7:25 pm-1:00 pm

1 stop30h 35m

$629

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Mon 11/10

2:40 pm-6:25 pm

1 stop38h 45m

Hanoi Noibai

Wed 11/19

7:25 pm-1:00 pm

1 stop30h 35m

$629

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Tue 9/9

4:00 pm-8:50 am

1 stop28h 50m

Hanoi Noibai

Wed 10/15

7:05 pm-2:25 pm

1 stop31h 20m

$645

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Tue 9/16

4:00 pm-6:05 pm

1 stop38h 05m

Hanoi Noibai

Wed 10/15

7:05 pm-2:25 pm

1 stop31h 20m

$653

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Thu 9/11

4:00 pm-3:35 pm

1 stop35h 35m

Hanoi Noibai

Wed 10/15

7:05 pm-2:25 pm

1 stop31h 20m

$658

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Tue 9/9

4:00 pm-8:50 am

1 stop28h 50m

Hanoi Noibai

Tue 10/14

7:05 pm-2:25 pm

1 stop31h 20m

$658

ChicagoHo Chi Minh City

MDW - SGN

MDWSGN

Chicago Midway

Wed 9/17

6:30 pm-12:35 pm

2 stops30h 05m

Ho Chi Minh City

Sun 9/21

11:45 pm-9:36 pm

2 stops33h 51m

$875

ChicagoHanoi

MDW - HAN

MDWHAN

Chicago Midway

Thu 9/18

9:35 am-10:40 am

2 stops37h 05m

Hanoi Noibai

Mon 9/22

11:10 pm-1:03 pm

2 stops49h 53m

$886

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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

Have a flexible travel schedule? Discover the best time to fly to Vietnam 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 Vietnam

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $910). Flying from Illinois to Vietnam in June is currently the most expensive (average of $1,430). 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 VN?

Find hourly flight availability from Illinois to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Vietnam. 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 Vietnam?

    Departing from Illinois to Vietnam will take you 26h 44m. Airlines will cover a distance of 8834 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Vietnam one-way?

    One-way options have recently been found by users for as low as $360 on Cathay Pacific. Other airlines that offer cheap prices include Korean Air from $418 and American Airlines from $494 one-way.

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

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

  • How can I find direct flights from Illinois to Vietnam?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Vietnam 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 Vietnam?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $910). Flying from Illinois to Vietnam in June is currently the most expensive (average of $1,430). 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 Vietnam

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 Vietnam

Discover the top 10 airlines that operate flights from Illinois to Vietnam. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$647Average$960FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$730Average$925FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$768Average$1,255FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$777Average$1,091FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$798Average$965FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$829Average$1,055FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$840Average$1,100FlexibilityNo cancel feeOn-time71%
DeltaCheapest$859Average$1,270FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$948Average$1,292FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,036Average$1,295FlexibilityNo cancel feeOn-time68%

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