What is the cheapest airline that flies from Illinois to Vietnam?

Philippine Airlines, United Airlines, and Delta are the most popular carriers operating from Illinois to Vietnam

What airlines fly to Vietnam?

EVA Air, Cathay Pacific and ANA are the top three most popular airlines that fly to Vietnam from Illinois according to our data. EVA Air is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Vietnam. Keep in mind that there are 10 different airlines that fly to Vietnam on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to Vietnam?

Prices for flights from Illinois to Vietnam refresh daily.

How many operators does momondo search for flights from Illinois to Vietnam?

As of March 2026, there are 11 operators available to choose from for flights from Illinois to Vietnam.

How old do you have to be to fly from Illinois to Vietnam?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Vietnam.

What documentation or ID do you need to fly to Vietnam?

The travel and health documents required for your trip to Vietnam can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Vietnam. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$349 Cheap Flights from Illinois to Vietnam in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Illinois to Vietnam

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 5:25 pm

STL

DAD

46h 25m

2 stops

11:50 am - 11:59 pm

DAD

STL

48h 09m

2 stops

$883Multiple Airlines

Tue, Apr 14 - Tue, Apr 21

3:35 pm - 12:20 am

ORD

SGN

20h 45m

1 stop

7:10 am - 1:55 pm

SGN

ORD

18h 45m

1 stop

$884Cathay Pacific

Mon, Mar 9 - Thu, Apr 16

4:44 pm - 10:05 pm

STL

SGN

65h 21m

3 stops

11:15 pm - 5:42 pm

SGN

STL

30h 27m

2 stops

$885United Airlines

Tue, May 12 - Tue, Jun 2

12:30 am - 10:05 am

ORD

SGN

21h 35m

1 stop

3:45 pm - 9:00 pm

SGN

ORD

41h 15m

1 stop

$885EVA Air

Wed, Apr 29 - Tue, May 5

2:30 pm - 7:55 pm

ORD

SGN

41h 25m

1 stop

8:55 pm - 11:10 am

SGN

ORD

26h 15m

2 stops

$886Air India

Wed, Mar 11 - Tue, Apr 7

11:50 am - 12:15 am

ORD

SGN

24h 25m

1 stop

7:00 am - 7:03 pm

SGN

ORD

24h 03m

2 stops

$887United Airlines

Tue, Apr 28 - Thu, May 7

9:35 pm - 10:05 pm

ORD

SGN

36h 30m

2 stops

7:00 am - 7:03 pm

SGN

ORD

24h 03m

2 stops

$888United Airlines

Tue, Apr 28 - Tue, May 5

7:05 am - 5:25 am

STL

SGN

34h 20m

2 stops

8:20 am - 11:47 am

SGN

STL

39h 27m

2 stops

$889Japan Airlines

Mon, Apr 13 - Mon, Apr 20

2:30 pm - 7:55 pm

ORD

SGN

41h 25m

1 stop

8:55 pm - 11:10 am

SGN

ORD

26h 15m

2 stops

$895Air India

Mon, Mar 9 - Sun, Apr 12

12:30 am - 11:05 am

ORD

HAN

22h 35m

1 stop

12:05 pm - 9:00 pm

HAN

ORD

20h 55m

1 stop

$896EVA Air

Tue, Apr 21 - Wed, May 6

Cathay Pacific flights from Illinois to Vietnam

Our best Cathay Pacific deals on Illinois to Vietnam flight tickets

Cathay Pacific

Mar 9

ORD3:35 pmChicago O'Hare Intl

39h 00m

1 stop

SGN6:35 pmHo Chi Minh City

Apr 14

SGN6:55 amHo Chi Minh City

19h 00m

1 stop

ORD1:55 pmChicago O'Hare Intl

$884

Cathay Pacific

Apr 23

ORD4:15 pmChicago O'Hare Intl

29h 40m

1 stop

HAN9:55 amHanoi Noibai

May 3

HAN10:55 amHanoi Noibai

39h 00m

1 stop

ORD1:55 pmChicago O'Hare Intl

$889

Cathay Pacific

Apr 29

ORD4:15 pmChicago O'Hare Intl

37h 05m

1 stop

SGN5:20 pmHo Chi Minh City

May 9

SGN6:20 pmHo Chi Minh City

31h 35m

1 stop

ORD1:55 pmChicago O'Hare Intl

$890

United Airlines flights from Illinois to Vietnam

Our best United Airlines deals on Illinois to Vietnam flight tickets

United Airlines

May 12

STL4:44 pmLambert-St Louis

65h 21m

3 stops

SGN10:05 pmHo Chi Minh City

Jun 2

SGN11:15 pmHo Chi Minh City

30h 27m

2 stops

STL5:42 pmLambert-St Louis

$885

United Airlines

Apr 28

ORD11:50 amChicago O'Hare Intl

24h 25m

1 stop

SGN12:15 amHo Chi Minh City

May 7

SGN7:00 amHo Chi Minh City

24h 03m

2 stops

ORD7:03 pmChicago O'Hare Intl

$887

United Airlines

Apr 28

ORD7:00 amChicago O'Hare Intl

27h 05m

2 stops

SGN10:05 pmHo Chi Minh City

May 6

SGN7:00 amHo Chi Minh City

24h 03m

2 stops

ORD7:03 pmChicago O'Hare Intl

$888

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDa Nang

STL - DAD

STLDAD

Lambert-St Louis

Tue 4/14

7:00 am-5:25 pm

2 stops46h 25m

Da Nang

Tue 4/21

11:50 am-11:59 pm

2 stops48h 09m

$883

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Mon 3/9

3:35 pm-12:20 am

1 stop20h 45m

Ho Chi Minh City

Thu 4/16

7:10 am-1:55 pm

1 stop18h 45m

$884

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Tue 5/12

4:44 pm-10:05 pm

3 stops65h 21m

Ho Chi Minh City

Tue 6/2

11:15 pm-5:42 pm

2 stops30h 27m

$885

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Wed 4/29

12:30 am-10:05 am

1 stop21h 35m

Ho Chi Minh City

Tue 5/5

3:45 pm-9:00 pm

1 stop41h 15m

$885

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Wed 3/11

2:30 pm-7:55 pm

1 stop41h 25m

Ho Chi Minh City

Tue 4/7

8:55 pm-11:10 am

2 stops26h 15m

$886

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Tue 4/28

11:50 am-12:15 am

1 stop24h 25m

Ho Chi Minh City

Thu 5/7

7:00 am-7:03 pm

2 stops24h 03m

$887

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Tue 4/28

9:35 pm-10:05 pm

2 stops36h 30m

Ho Chi Minh City

Tue 5/5

7:00 am-7:03 pm

2 stops24h 03m

$888

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 4/13

7:05 am-5:25 am

2 stops34h 20m

Ho Chi Minh City

Mon 4/20

8:20 am-11:47 am

2 stops39h 27m

$889

ChicagoHo Chi Minh City

ORD - SGN

ORDSGN

Chicago O'Hare Intl

Mon 3/9

2:30 pm-7:55 pm

1 stop41h 25m

Ho Chi Minh City

Sun 4/12

8:55 pm-11:10 am

2 stops26h 15m

$895

ChicagoHanoi

ORD - HAN

ORDHAN

Chicago O'Hare Intl

Tue 4/21

12:30 am-11:05 am

1 stop22h 35m

Hanoi Noibai

Wed 5/6

12:05 pm-9:00 pm

1 stop20h 55m

$896

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Vietnam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Vietnam?

The month of November is, on average, the cheapest month to fly to Vietnam from Illinois, with most prices found around $873. If you don’t want to visit Vietnam in November, then you should wait until September to fly from Illinois, when ticket prices are also cheap, with an average price of $883.

How far in advance should I book a flight to Vietnam?

You are more likely to see cheaper flights to Vietnam from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $1,109 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from Illinois for as low as $959 on momondo.

Can stopping save me money on Illinois to Vietnam flights?

You could potentially save up to 7% on your flight if you consider stops on a Illinois to Vietnam flight.

Cheap Illinois to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Vietnam

Fastest flight time	20h 05m
Direct flights	None

The fastest flight from Illinois to Vietnam takes 20h 05m

There are no direct flights from Illinois to Vietnam. There are no popular flight routes from Illinois to Vietnam.

Search flight deals

When did momondo last update prices for flights from Illinois to Vietnam?
Prices for flights from Illinois to Vietnam refresh daily.
How many operators does momondo search for flights from Illinois to Vietnam?
As of March 2026, there are 11 operators available to choose from for flights from Illinois to Vietnam.
How old do you have to be to fly from Illinois to Vietnam?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Vietnam.
What documentation or ID do you need to fly to Vietnam?
The travel and health documents required for your trip to Vietnam can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Vietnam. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to Vietnam

Compare and see reviews for airlines that fly from Illinois to Vietnam with momondo

Airline	Rating	Free Cancellation	Price
Korean Air	PriceFrom $583	Free Cancellation	Rating 8.4 1,195 reviews	Search Korean Air flights
ANA	PriceFrom $594	Free Cancellation	Rating 8.4 1,107 reviews	Search ANA flights
Air India	PriceFrom $632	Free Cancellation	Rating 5.5 2,972 reviews	Search Air India flights
Cathay Pacific	PriceFrom $664	Free Cancellation	Rating 7.6 1,182 reviews	Search Cathay Pacific flights
Delta	PriceFrom $681	Free Cancellation	Rating 7.9 8,239 reviews	Search Delta flights
Japan Airlines	PriceFrom $766	Free Cancellation	Rating 8.3 1,721 reviews	Search Japan Airlines flights
United Airlines	PriceFrom $768	Free Cancellation	Rating 7.4 9,375 reviews	Search United Airlines flights
American Airlines	PriceFrom $801	Free Cancellation	Rating 7.1 11,375 reviews	Search American Airlines flights
Turkish Airlines	PriceFrom $843	Free Cancellation	Rating 7.3 4,240 reviews	Search Turkish Airlines flights
EVA Air	PriceFrom $886	Free Cancellation	Rating 8.4 1,362 reviews	Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Vietnam?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Vietnam. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to Vietnam with flexible booking policies on momondo?

Yes. All flights to Vietnam from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Vietnam?

momondo provides multiple filters to help you find the best flight to Vietnam from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to Vietnam right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Vietnam, momondo offers a useful price alert feature which will track prices for flights to Vietnam from Illinois and alert you when they change.