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$410+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap 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 January 20, 2026.

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 10/2212:00 pm
ORD
-
SGN
1 stop21h 55m
United Airlines
Sun 11/111:05 pm
SGN
-
ORD
1 stop29h 05m
United Airlines
Deal found 1/20$862
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/11:30 pm
ORD
-
SGN
1 stop41h 25m
Air India
Sun 4/58:55 pm
SGN
-
ORD
2 stops26h 15m
Air India
Deal found 1/20$863
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.
Wed 10/215:45 pm
ORD
-
SGN
1 stop40h 10m
United Airlines
Thu 10/297:30 am
SGN
-
ORD
1 stop19h 20m
United Airlines
Deal found 1/20$865
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.
Tue 10/207:15 am
ORD
-
SGN
2 stops26h 50m
United Airlines
Mon 11/211:05 pm
SGN
-
ORD
1 stop21h 15m
United Airlines
Deal found 1/20$866
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.
Mon 10/196:00 am
ORD
-
SGN
2 stops27h 55m
United Airlines
Sun 11/111:05 pm
SGN
-
ORD
1 stop29h 05m
United Airlines
Deal found 1/20$867
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.
Wed 9/167:15 am
ORD
-
SGN
2 stops26h 50m
United Airlines
Thu 10/17:00 am
SGN
-
ORD
1 stop19h 55m
United Airlines
Deal found 1/20$869
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:55 am
ORD
-
SGN
2 stops25h 00m
United Airlines
Tue 10/207:00 am
SGN
-
ORD
1 stop19h 55m
United Airlines
Deal found 1/19$870
This Delta deal was found by Cheapflights users on 1/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:40 am
ORD
-
SGN
2 stops26h 40m
Delta
Thu 4/307:35 am
SGN
-
ORD
2 stops28h 23m
Delta
Deal found 1/18$872
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:05 pm
MDW
-
SGN
2 stops35h 30m
Delta
Mon 9/77:35 am
SGN
-
MDW
2 stops26h 11m
Delta
Deal found 1/20$872
This Air India 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 Air India is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/111:30 pm
ORD
-
SGN
1 stop41h 25m
Air India
Thu 2/268:55 pm
SGN
-
ORD
1 stop27h 35m
Air India
Deal found 1/20$873
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 9/175:15 am
ORD
-
SGN
3 stops28h 50m
United Airlines
Thu 10/17:00 am
SGN
-
ORD
1 stop19h 55m
United Airlines
Deal found 1/20$874
This United Airlines deal was found by Cheapflights users on 1/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2510:30 am
ORD
-
SGN
1 stop24h 45m
United Airlines
Sun 4/2611:15 pm
SGN
-
ORD
2 stops31h 24m
United Airlines
Deal found 1/18$875

Find flight deals from Illinois to Vietnam

Keep the following information in mind while searching for Illinois to Vietnam flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$866
(United Airlines)

One-way from

$410
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,034
Provider with most accurate pricing for Chicago (CHI)-Ho Chi Minh City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Ho Chi Minh City flights.
Search Deals
From Illinois to Vietnam
Search Deals
One-way flight from Illinois to Vietnam
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($280 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 20, 2026.
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

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Sun 3/1

9:15 pm-10:55 pm

2 stops36h 40m

Ho Chi Minh City

Sun 4/26

11:15 pm-3:15 pm

1 stop28h 00m

$866

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Mon 3/2

7:40 am-12:50 pm

2 stops40h 10m

Ho Chi Minh City

Tue 4/28

7:35 am-9:35 pm

2 stops26h 00m

$872

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Thu 2/26

7:40 am-11:20 pm

2 stops26h 40m

Ho Chi Minh City

Wed 4/29

7:35 am-1:25 pm

2 stops41h 50m

$880

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Tue 2/17

1:02 pm-10:55 pm

3 stops44h 53m

Ho Chi Minh City

Sun 4/19

11:15 pm-8:39 pm

2 stops33h 24m

$881

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Sun 1/25

9:05 pm-10:55 pm

3 stops36h 50m

Ho Chi Minh City

Thu 2/5

7:30 am-5:04 pm

2 stops22h 34m

$884

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Sun 1/25

9:05 pm-10:55 pm

3 stops36h 50m

Ho Chi Minh City

Mon 2/9

7:30 am-7:50 pm

2 stops25h 20m

$884

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Fri 3/13

2:30 pm-7:55 pm

1 stop41h 25m

Ho Chi Minh City

Sun 3/22

8:55 pm-12:30 pm

1 stop27h 35m

$886

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Mon 4/6

8:40 am-10:05 pm

2 stops25h 25m

Ho Chi Minh City

Thu 4/16

7:00 am-6:54 pm

2 stops23h 54m

$888

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Tue 2/17

7:10 am-10:55 pm

2 stops26h 45m

Ho Chi Minh City

Wed 4/22

7:00 am-8:26 pm

2 stops25h 26m

$888

ChicagoDa Nang

ORD - DAD

ORDDAD

Chicago O'Hare Intl

Mon 3/23

3:35 pm-5:45 pm

1 stop38h 10m

Da Nang

Wed 4/15

10:05 am-2:25 pm

1 stop40h 20m

$925

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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, June is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $583). Flying from Illinois to Vietnam in May is currently the most expensive (average of $957). 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.

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 36h 40m. Airlines will cover a distance of 8667 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 $277 on ANA. Other airlines that offer cheap prices include Korean Air from $332 and Cathay Pacific from $375 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, June is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $583). Flying from Illinois to Vietnam in May is currently the most expensive (average of $957). 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$583Average$1,078FlexibilityNo cancel feeOn-time81%
ANACheapest$599Average$902FlexibilityNo cancel feeOn-time80%
Air IndiaCheapest$632Average$709FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$660Average$906FlexibilityNo cancel feeOn-time72%
DeltaCheapest$681Average$1,231FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$709Average$1,182FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$766Average$1,058FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$801Average$1,040FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$817Average$1,120FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$902Average$1,279FlexibilityNo cancel feeOn-time74%

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