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$354+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/174:25 pmORD - SGN
1 stop40h 25mANA
Wed 12/177:30 amSGN - ORD
2 stops24h 20mANA
Deal found 11/12$821
This oojo deal was found by Cheapflights users on 11/12. 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 11/132:35 pmORD - SGN
1 stop20h 45mCathay Pacific
Tue 11/257:35 pmSGN - ORD
1 stop30h 20mCathay Pacific
Deal found 11/12$837
This FlightHub deal was found by Cheapflights users on 11/13. 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 11/294:25 pmORD - SGN
1 stop42h 50mANA
Thu 12/117:30 amSGN - ORD
1 stop19h 20mANA
Deal found 11/13$839
This United Airlines deal was found by Cheapflights users on 11/13. 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 11/249:30 pmORD - SGN
3 stops36h 25mUnited Airlines
Sat 12/611:05 pmSGN - ORD
2 stops52h 07mUnited Airlines
Deal found 11/13$840
This United Airlines deal was found by Cheapflights users on 11/13. 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 11/139:18 pmORD - SGN
2 stops36h 37mUnited Airlines
Tue 11/256:00 amSGN - ORD
2 stops29h 59mUnited Airlines
Deal found 11/13$841
This oojo deal was found by Cheapflights users on 11/10. 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 11/112:35 pmORD - HAN
1 stop38h 55mCathay Pacific
Tue 11/1811:05 amHAN - ORD
1 stop38h 50mCathay Pacific
Deal found 11/10$842
This Ovago deal was found by Cheapflights users on 11/11. 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.
Fri 11/2810:30 amORD - SGN
1 stop24h 45mANA
Sun 12/2811:05 pmSGN - ORD
1 stop29h 05mANA
Deal found 11/11$844
This United Airlines deal was found by Cheapflights users on 11/12. 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 11/177:10 amORD - SGN
2 stops26h 45mUnited Airlines
Wed 12/177:30 amSGN - ORD
1 stop19h 20mUnited Airlines
Deal found 11/12$846
This oojo deal was found by Cheapflights users on 11/12. 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 11/252:35 pmORD - SGN
1 stop20h 45mCathay Pacific
Mon 1/2611:35 amSGN - ORD
1 stop38h 20mCathay Pacific
Deal found 11/12$847
This FlightHub deal was found by Cheapflights users on 11/12. 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.
Wed 11/192:35 pmORD - SGN
1 stop31h 00mCathay Pacific
Mon 3/306:20 pmSGN - ORD
1 stop32h 05mCathay Pacific
Deal found 11/12$849
This Gotogate deal was found by Cheapflights users on 11/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:35 pmORD - DAD
1 stop29h 45mCathay Pacific
Mon 3/912:25 pmDAD - ORD
1 stop37h 30mCathay Pacific
Deal found 11/10$863
This Cathay Pacific deal was found by Cheapflights users on 11/10. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:35 pmORD - HAN
1 stop30h 30mCathay Pacific
Mon 11/1710:30 amHAN - ORD
1 stop39h 25mCathay Pacific
Deal found 11/10$869

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$802
(American Airlines)

One-way from

$354
(oojo)

Popular in

June

Cheapest in

September

Average price

$903
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.
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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 ($297 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 13, 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

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Thu 1/15

2:35 pm-12:20 am

1 stop20h 45m

Ho Chi Minh City

Mon 1/26

7:15 am-12:55 pm

1 stop18h 40m

$864

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Thu 1/29

2:35 pm-12:20 am

1 stop20h 45m

Ho Chi Minh City

Mon 2/9

7:15 am-12:55 pm

1 stop18h 40m

$864

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Tue 1/20

2:50 pm-4:50 pm

2 stops37h 00m

Ho Chi Minh City

Mon 4/27

5:30 pm-2:11 pm

2 stops32h 41m

$877

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Wed 4/8

6:16 pm-9:50 pm

3 stops39h 34m

Ho Chi Minh City

Wed 4/22

11:15 pm-8:40 am

1 stop21h 25m

$914

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Mon 4/6

5:45 pm-9:55 pm

1 stop40h 10m

Ho Chi Minh City

Mon 4/20

7:00 am-11:28 pm

2 stops28h 28m

$919

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Thu 1/22

2:50 pm-10:30 am

2 stops30h 40m

Ho Chi Minh City

Fri 1/30

5:50 pm-1:54 pm

2 stops57h 04m

$925

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Mon 1/19

7:10 am-10:55 pm

2 stops26h 45m

Ho Chi Minh City

Mon 4/6

7:00 am-6:53 pm

2 stops23h 53m

$931

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Sun 4/12

9:10 pm-9:50 pm

2 stops36h 40m

Ho Chi Minh City

Wed 5/6

7:00 am-8:22 pm

2 stops25h 22m

$931

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Tue 1/27

9:01 am-10:55 pm

2 stops48h 54m

Ho Chi Minh City

Thu 3/5

6:00 am-7:55 pm

2 stops26h 55m

$932

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 1/19

9:34 am-10:35 am

2 stops36h 01m

Ho Chi Minh City

Mon 4/27

11:05 am-11:16 pm

2 stops48h 11m

$936

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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 $884). 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 November 13, 2025.

It’s typically best to fly out from Illinois to Vietnam in the evening. Doing so could potentially save you 42% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Illinois to Vietnam?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Vietnam. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Vietnam flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 20h 45m. 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 $359 on Air India. Other airlines that offer cheap prices include Japan Airlines from $411 and United Airlines from $438 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 $884). 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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Top 9 airlines flying from Illinois to Vietnam

Discover the top 9 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$624Average$935FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$662Average$928FlexibilityNo cancel feeOn-time72%
DeltaCheapest$681Average$1,214FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$750Average$1,230FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$770Average$1,080FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$816Average$1,118FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$829Average$1,089FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$840Average$1,087FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$934Average$1,291FlexibilityNo cancel feeOn-time74%

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