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$361+ 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
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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 10/306:00 amORD - SGN
3 stops28h 55mUnited Airlines
Thu 11/66:00 amSGN - ORD
3 stops38h 41mUnited Airlines
Deal found 10/29$805
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 11/28:14 pmORD - SGN
2 stops37h 41mUnited Airlines
Wed 11/126:00 amSGN - ORD
2 stops25h 50mUnited Airlines
Deal found 10/29$808
This CrystalTravel deal was found by Cheapflights users on 10/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:10 amORD - SGN
2 stops29h 05mANA
Thu 11/67:30 amSGN - ORD
1 stop19h 20mANA
Deal found 10/29$812
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/38:48 amORD - SGN
2 stops49h 07mUnited Airlines
Wed 11/126:00 amSGN - ORD
3 stops38h 41mUnited Airlines
Deal found 10/29$813
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/257:10 amORD - SGN
2 stops26h 45mUnited Airlines
Sun 12/147:30 amSGN - ORD
1 stop19h 20mUnited Airlines
Deal found 10/27$823
This FlightHub deal was found by Cheapflights users on 10/30. 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 stop40h 25mANA
Sun 12/2111:05 pmSGN - ORD
1 stop21h 15mANA
Deal found 10/30$825
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Sun 11/164:25 pmORD - SGN
1 stop40h 25mANA
Mon 12/87:30 amSGN - ORD
1 stop19h 20mANA
Deal found 10/30$828
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/34:25 pmORD - SGN
1 stop40h 25mUnited Airlines
Fri 12/127:30 amSGN - ORD
2 stops25h 16mUnited Airlines
Deal found 10/27$829
This CrystalTravel deal was found by Cheapflights users on 10/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3010:30 amORD - HAN
1 stop23h 35mANA
Sun 12/712:25 amHAN - ORD
1 stop26h 25mANA
Deal found 10/30$835
This oojo deal was found by Cheapflights users on 10/28. 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 stop30h 30mCathay Pacific
Tue 11/187:30 pmHAN - ORD
1 stop30h 25mCathay Pacific
Deal found 10/28$842
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 11/24:35 pmSTL - SGN
3 stops41h 20mUnited Airlines
Wed 11/197:30 amSGN - STL
2 stops21h 57mUnited Airlines
Deal found 10/28$867
This Delta deal was found by Cheapflights users on 10/28. 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.
Tue 12/26:00 amMDW - SGN
2 stops27h 25mDelta
Thu 12/1811:50 pmSGN - MDW
2 stops29h 41mDelta
Deal found 10/28$875

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$803
(KAYAK)

One-way from

$361
(oojo)

Popular in

June

Cheapest in

September

Average price

$970
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 ($294 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 October 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 October 30, 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 11/13

7:10 am-10:55 pm

2 stops26h 45m

Ho Chi Minh City

Tue 11/25

6:00 am-11:59 pm

3 stops30h 59m

$805

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Mon 1/19

2:35 pm-6:30 pm

1 stop38h 55m

Hanoi Noibai

Mon 1/26

7:30 pm-12:55 pm

1 stop30h 25m

$842

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Wed 11/26

9:30 pm-10:55 pm

3 stops36h 25m

Ho Chi Minh City

Sun 12/14

6:00 am-6:55 pm

3 stops25h 55m

$845

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Thu 11/13

2:35 pm-12:20 am

1 stop20h 45m

Ho Chi Minh City

Mon 11/17

11:35 am-12:55 pm

1 stop38h 20m

$864

ChicagoHo Chi Minh City

MDW - SGN

MDWSGN

Chicago Midway

Tue 12/2

6:00 am-10:25 pm

2 stops27h 25m

Ho Chi Minh City

Thu 12/18

11:50 pm-4:31 pm

2 stops29h 41m

$875

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Sat 11/29

7:10 am-10:55 pm

2 stops26h 45m

Ho Chi Minh City

Sun 12/21

6:00 am-8:25 pm

2 stops27h 25m

$881

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Tue 4/7

5:00 pm-9:40 am

2 stops28h 40m

Ho Chi Minh City

Mon 4/20

5:30 pm-5:00 am

2 stops23h 30m

$890

ChicagoDa Nang

ORD - DAD

ORDDAD

Chicago O'Hare Intl

Sun 11/2

2:35 pm-9:20 am

1 stop29h 45m

Da Nang

Wed 11/12

10:05 am-12:55 pm

1 stop39h 50m

$899

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Thu 12/4

6:45 am-11:20 pm

2 stops27h 35m

Ho Chi Minh City

Fri 12/19

8:00 am-9:40 pm

2 stops26h 40m

$905

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Tue 1/20

8:05 am-9:50 pm

2 stops48h 45m

Ho Chi Minh City

Tue 2/3

11:05 pm-2:30 pm

2 stops28h 25m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 October 30, 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 26h 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 $404 on Air India. Other airlines that offer cheap prices include Cathay Pacific from $450 and United Airlines from $487 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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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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$626Average$935FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$662Average$928FlexibilityNo cancel feeOn-time72%
DeltaCheapest$681Average$1,214FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$750Average$1,224FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$770Average$993FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$816Average$1,117FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$829Average$1,081FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$840Average$1,002FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$939Average$1,296FlexibilityNo cancel feeOn-time74%

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