HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Vietnam

$435+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Vietnam with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$868
(United Airlines)

One-way from

$435
(oojo)

Popular in

June

Cheapest in

October

Average price

$1,722
From Illinois to Vietnam
Search Deals
One-way flight from Illinois to Vietnam
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($271 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This oojo deal was found by Cheapflights users on 6/10. 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.
Mon 9/2212:10 pmORD - HAN
1 stop21h 25mKorean Air
Mon 11/1012:20 pmHAN - ORD
1 stop33h 10mKorean Air
Deal found 6/10$797
This Gotogate deal was found by Cheapflights users on 6/10. 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.
Thu 10/234:00 pmORD - HAN
1 stop38h 05mCathay Pacific
Sun 11/211:05 amHAN - ORD
1 stop38h 55mCathay Pacific
Deal found 6/10$844
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:10 pmORD - HAN
1 stop36h 05mMultiple Airlines
Sun 11/211:30 pmHAN - ORD
1 stop22h 00mMultiple Airlines
Deal found 6/10$846
This KAYAK deal was found by Cheapflights users on 6/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:50 amORD - HAN
1 stop22h 25mANA
Wed 10/111:35 pmHAN - ORD
1 stop27h 20mANA
Deal found 6/9$857
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2011:50 amORD - HAN
1 stop22h 25mUnited Airlines
Sun 11/1612:25 amHAN - ORD
2 stops32h 05mUnited Airlines
Deal found 6/10$863
This Travelocity deal was found by Cheapflights users on 6/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1111:50 amORD - DAD
2 stops30h 05mMultiple Airlines
Wed 10/86:00 amDAD - ORD
2 stops38h 40mMultiple Airlines
Deal found 6/12$911
This oojo deal was found by Cheapflights users on 6/10. 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.
Mon 9/228:00 amORD - HAN
2 stops38h 35mChina Airlines
Mon 11/105:35 pmHAN - ORD
2 stops25h 47mChina Airlines
Deal found 6/10$915
This KAYAK deal was found by Cheapflights users on 6/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:10 amORD - DAD
2 stops41h 05mANA
Wed 12/312:35 amDAD - ORD
1 stop26h 15mANA
Deal found 6/11$923
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:05 pmORD - HAN
2 stops39h 30mDelta
Sat 9/1312:00 pmHAN - ORD
2 stops21h 53mDelta
Deal found 6/12$924
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:20 amMDW - HAN
2 stops37h 20mDelta
Mon 11/1011:00 pmHAN - MDW
2 stops35h 44mDelta
Deal found 6/10$939
This Travelocity deal was found by Cheapflights users on 6/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/24:01 pmSTL - SGN
2 stops28h 59mMultiple Airlines
Sat 11/85:50 pmSGN - STL
2 stops34h 15mMultiple Airlines
Deal found 6/10$967
This IEagle deal was found by Cheapflights users on 6/9. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1612:30 amORD - HAN
1 stop22h 35mEVA Air
Wed 10/112:05 pmHAN - ORD
1 stop20h 40mEVA Air
Deal found 6/9$984

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 June 12, 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

Tue 7/15

7:20 am-10:15 pm

2 stops26h 55m

Hanoi Noibai

Wed 8/20

11:35 pm-12:29 am

2 stops36h 54m

$868

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Thu 7/17

6:30 am-10:15 pm

2 stops27h 45m

Hanoi Noibai

Sun 8/3

11:35 pm-2:55 pm

1 stop27h 20m

$873

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Sat 8/30

4:00 pm-6:05 pm

1 stop38h 05m

Hanoi Noibai

Mon 9/8

10:30 am-2:25 pm

1 stop39h 55m

$903

ChicagoDa Nang

ORD - DAD

ORDDAD

Chicago O'Hare Intl

Mon 8/11

11:50 am-5:55 am

2 stops30h 05m

Da Nang

Wed 10/8

6:00 am-8:40 am

2 stops38h 40m

$911

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Sun 9/7

6:05 pm-9:35 pm

2 stops39h 30m

Hanoi Noibai

Sat 9/13

12:00 pm-9:53 pm

2 stops21h 53m

$924

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Sun 7/27

7:10 am-10:15 pm

2 stops27h 05m

Hanoi Noibai

Sun 8/3

11:35 pm-2:55 pm

1 stop27h 20m

$944

ChicagoHanoi

MDW - HAN

MDWHAN

Chicago Midway

Sun 8/10

9:25 am-10:40 am

2 stops37h 15m

Hanoi Noibai

Tue 8/26

11:10 pm-9:44 pm

2 stops34h 34m

$961

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Sun 11/2

4:01 pm-10:00 am

2 stops28h 59m

Ho Chi Minh City

Sat 11/8

5:50 pm-3:05 pm

2 stops34h 15m

$967

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Tue 9/9

9:55 am-9:45 pm

2 stops23h 50m

Ho Chi Minh City

Mon 10/20

8:20 am-10:53 pm

2 stops26h 33m

$984

ChicagoDa Nang

ORD - DAD

ORDDAD

Chicago O'Hare Intl

Sun 8/10

12:30 am-11:35 am

1 stop23h 05m

Da Nang

Wed 10/8

12:55 pm-8:45 pm

1 stop19h 50m

$985

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
1
2
3
...
6

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, March is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $920). Flying from Illinois to Vietnam in June is currently the most expensive (average of $1,475). 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 June 12, 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.

Rainfall in Vietnam by month

Plan your trip to Vietnam by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 13.4 inches per month. September is typically the wettest month, when rainfall can reach 13.4 in. February is typically the driest time to visit Vietnam when rainfall is around 0.0 in.

Temperature in Vietnam by month

Plan your trip to Vietnam by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated June 12, 2025.
To help decide which airline to fly from Illinois to Vietnam, see what other customers have to say about EVA Air, Korean Air and Japan Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,489 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very good
882 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • 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 $435 on Korean Air. Other airlines that offer cheap prices include ANA from $463 and United Airlines from $464 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, March is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $920). Flying from Illinois to Vietnam in June is currently the most expensive (average of $1,475). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Haneda flights
Los Angeles to Narita flights
John F Kennedy Intl to Haneda flights
Seattle to Narita flights
Newark to Haneda flights
Newark to Narita flights
San Francisco to Haneda flights
San Francisco to Narita flights
Los Angeles to Manila flights
John F Kennedy Intl to Narita flights
Seattle to Haneda flights
San Francisco to Manila flights
Los Angeles to Suvarnabhumi flights
John F Kennedy Intl to Suvarnabhumi flights
Dallas/Fort Worth to Narita flights
Dallas/Fort Worth to Haneda flights
John F Kennedy Intl to Hong Kong flights
Dulles Intl to Haneda flights
LaGuardia to Haneda flights
LaGuardia to Narita flights
Hobby to Haneda flights
Los Angeles to Incheon Intl flights
O'Hare Intl to Narita flights
San Francisco to New Delhi flights
Ontario to Narita flights
O'Hare Intl to Haneda flights
Dallas/Fort Worth to Suvarnabhumi flights
Boston to Narita flights
San Francisco to Hong Kong flights
John F Kennedy Intl to Mumbai flights
Seattle to Suvarnabhumi flights
Newark to New Delhi flights
John F Kennedy Intl to Incheon Intl flights
Newark to Suvarnabhumi flights
San Francisco to Suvarnabhumi flights
Hobby to Narita flights
Newark to Mumbai flights
San Francisco to Ho Chi Minh City flights
Los Angeles to Taiwan Taoyuan Intl flights
John F Kennedy Intl to Hongqiao Intl flights
Atlanta to Haneda flights
John F Kennedy Intl to Taiwan Taoyuan Intl flights
San Francisco to Taiwan Taoyuan Intl flights
Dulles Intl to Narita flights
George Bush Intcntl to Haneda flights
Ontario to Haneda flights
John F Kennedy Intl to Manila flights
LaGuardia to Suvarnabhumi flights
Dulles Intl to Suvarnabhumi flights
Seattle to Incheon Intl flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$733Average$936FlexibilityNo cancel feeOn-time72%
ANACheapest$752Average$982FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$780Average$1,059FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$781Average$1,278FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$807Average$1,010FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$829Average$1,133FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$840Average$1,278FlexibilityNo cancel feeOn-time71%
DeltaCheapest$902Average$1,276FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$945Average$1,262FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,036Average$1,295FlexibilityNo cancel feeOn-time68%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.