$348+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Mar 13 — Mar 201
1 adult, Economy
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Cheapest flights from Illinois to VietnamExplore 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 February 11, 2026.
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 February 11, 2026.
This ScholarTrip deal was found by Cheapflights users on 2/11. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:15 pm
ORD
- HAN
1 stop37h 55m
Cathay Pacific
Wed 5/67:10 pm
HAN
- ORD
1 stop30h 45m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$798
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:15 pm
ORD
- DAD
1 stop37h 10m
Cathay Pacific
Mon 4/2711:50 am
DAD
- ORD
1 stop38h 05m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$815
This United Airlines deal was found by Cheapflights users on 2/10. 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 8/176:15 am
STL
- SGN
2 stops27h 40m
United Airlines
Mon 8/3111:15 pm
SGN
- STL
2 stops46h 33m
United Airlines
Deal found 2/10![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:18 pm
STL
- SGN
3 stops40h 47m
United Airlines
Thu 10/17:00 am
SGN
- STL
2 stops28h 43m
United Airlines
Deal found 2/9![United Airlines logo]()
$824
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/510:00 am
STL
- SGN
3 stops48h 05m
United Airlines
Wed 5/67:00 am
SGN
- STL
3 stops26h 52m
United Airlines
Deal found 2/11![United Airlines logo]()
$832
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:10 pm
ORD
- HAN
1 stop31h 30m
Turkish Airlines
Thu 5/2110:55 pm
HAN
- ORD
1 stop22h 45m
Turkish Airlines
Deal found 2/10![Turkish Airlines logo]()
$839
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:49 pm
STL
- SGN
2 stops43h 26m
United Airlines
Thu 4/237:00 am
SGN
- STL
3 stops37h 35m
United Airlines
Deal found 2/9![United Airlines logo]()
$842
This ScholarTrip deal was found by Cheapflights users on 2/11. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:15 pm
ORD
- HAN
1 stop37h 55m
Cathay Pacific
Fri 5/1510:55 am
HAN
- ORD
1 stop39h 00m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$848
This Mytrip deal was found by Cheapflights users on 2/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:15 am
STL
- SGN
2 stops27h 40m
ANA
Mon 10/2611:05 pm
SGN
- STL
2 stops49h 15m
ANA
Deal found 2/10![ANA logo]()
$855
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:21 am
STL
- SGN
2 stops27h 54m
ANA
Wed 5/611:15 pm
SGN
- STL
2 stops33h 53m
ANA
Deal found 2/11![ANA logo]()
$858
This United Airlines deal was found by Cheapflights users on 2/8. 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 11/910:30 am
ORD
- HAN
1 stop23h 35m
United Airlines
Mon 11/2312:25 am
HAN
- ORD
1 stop26h 25m
United Airlines
Deal found 2/8![United Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 2/10. 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 10/198:15 pm
STL
- SGN
3 stops37h 50m
United Airlines
Mon 10/2611:05 pm
SGN
- STL
2 stops49h 15m
United Airlines
Deal found 2/10![United Airlines logo]()
$877
Best flights from Illinois to VietnamDiscover carefully curated flight deals from Illinois to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
Discover carefully curated flight deals from Illinois to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 11, 2026.
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:35 pm
STL
- SGN
3 stops39h 30m
United Airlines
Thu 4/237:00 am
SGN
- STL
3 stops37h 35m
United Airlines
Deal found 2/9![United Airlines logo]()
$832
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:21 am
STL
- SGN
2 stops27h 54m
ANA
Wed 5/611:15 pm
SGN
- STL
2 stops33h 53m
ANA
Deal found 2/11![ANA logo]()
$858
This Delta deal was found by Cheapflights users on 2/10. 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.
Tue 3/36:20 pm
MDW
- SGN
2 stops40h 00m
Delta
Wed 3/188:00 am
SGN
- MDW
2 stops26h 31m
Delta
Deal found 2/10![Delta logo]()
$928
This China Airlines deal was found by Cheapflights users on 2/11. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:15 pm
ORD
- DAD
2 stops33h 15m
Multiple Airlines
Mon 4/275:30 pm
DAD
- ORD
2 stops25h 10m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$971
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:15 am
ORD
- HAN
1 stop23h 35m
Japan Airlines
Sun 4/1911:20 pm
HAN
- ORD
1 stop20h 00m
Japan Airlines
Deal found 2/10![Japan Airlines logo]()
$996
This Justfly.com deal was found by Cheapflights users on 2/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:00 pm
ORD
- DAD
2 stops34h 05m
Etihad Airways
Wed 4/2212:50 pm
DAD
- ORD
2 stops55h 45m
Etihad Airways
Deal found 2/10![Etihad Airways logo]()
$1,047
This Cathay Pacific deal was found by Cheapflights users on 2/7. 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.
Sun 4/56:38 am
STL
- SGN
2 stops39h 27m
Cathay Pacific
Thu 4/166:20 pm
SGN
- STL
2 stops40h 39m
Cathay Pacific
Deal found 2/7![Cathay Pacific logo]()
$1,067
This Turkish Airlines deal was found by Cheapflights users on 2/8. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1011:25 am
ORD
- HAN
1 stop40h 15m
Turkish Airlines
Wed 6/2410:55 pm
HAN
- ORD
1 stop31h 20m
Turkish Airlines
Deal found 2/8![Turkish Airlines logo]()
$1,113
This oojo deal was found by Cheapflights users on 2/10. 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 5/115:52 pm
ORD
- HAN
2 stops28h 43m
China Airlines
Thu 5/2111:35 am
HAN
- ORD
2 stops31h 05m
China Airlines
Deal found 2/10![China Airlines logo]()
$1,173
This oojo deal was found by Cheapflights users on 2/10. 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 5/197:40 am
ORD
- DAD
2 stops39h 55m
EVA Air
Thu 6/412:55 pm
DAD
- ORD
2 stops29h 45m
EVA Air
Deal found 2/10![EVA Air logo]()
$1,208
This BusinessClass deal was found by Cheapflights users on 2/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/282:05 pm
ORD
- PQC
2 stops44h 45m
Korean Air
Fri 4/312:10 am
PQC
- ORD
2 stops25h 14m
Korean Air
Deal found 2/10![Korean Air logo]()
$1,238
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:30 am
STL
- SGN
2 stops25h 35m
United Airlines
Wed 5/67:00 am
SGN
- STL
3 stops26h 08m
United Airlines
Deal found 2/11![United Airlines logo]()
$881
This Delta deal was found by Cheapflights users on 2/10. 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 3/26:20 pm
MDW
- SGN
2 stops39h 05m
Delta
Thu 3/198:00 am
SGN
- MDW
2 stops26h 31m
Delta
Deal found 2/10![Delta logo]()
$928
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:35 pm
STL
- SGN
3 stops43h 30m
United Airlines
Wed 7/111:15 pm
SGN
- STL
2 stops36h 12m
United Airlines
Deal found 2/11![United Airlines logo]()
$884
This Gurufare deal was found by Cheapflights users on 2/8. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/145:29 pm
ORD
- DAD
2 stops30h 11m
Multiple Airlines
Thu 4/1610:10 am
DAD
- ORD
1 stop22h 50m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$978
This Delta deal was found by Cheapflights users on 2/10. 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.
Tue 3/36:20 pm
MDW
- SGN
2 stops39h 05m
Delta
Thu 3/198:00 am
SGN
- MDW
2 stops26h 31m
Delta
Deal found 2/10![Delta logo]()
$928
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sat 5/94:44 pm
STL
- SGN
3 stops41h 21m
United Airlines
Fri 5/2211:15 pm
SGN
- STL
2 stops33h 23m
United Airlines
Deal found 2/10![United Airlines logo]()
$901
This Justfly.com deal was found by Cheapflights users on 2/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:10 pm
ORD
- DAD
2 stops57h 55m
Etihad Airways
Mon 3/161:05 pm
DAD
- ORD
2 stops55h 30m
Etihad Airways
Deal found 2/10![Etihad Airways logo]()
$1,102
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:30 am
ORD
- DAD
1 stop23h 05m
Multiple Airlines
Wed 4/227:10 am
DAD
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,005
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:50 am
ORD
- DAD
2 stops35h 15m
Turkish Airlines
Mon 3/91:05 pm
DAD
- ORD
2 stops34h 00m
Turkish Airlines
Deal found 2/9![Turkish Airlines logo]()
$1,114
This Delta deal was found by Cheapflights users on 2/10. 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 3/26:20 pm
MDW
- SGN
2 stops39h 05m
Delta
Tue 3/178:00 am
SGN
- MDW
2 stops26h 31m
Delta
Deal found 2/10![Delta logo]()
$928
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 5/57:00 am
ORD
- SGN
2 stops27h 05m
United Airlines
Tue 5/267:00 am
SGN
- ORD
2 stops28h 16m
United Airlines
Deal found 2/10![United Airlines logo]()
$917
This Korean Air deal was found by Cheapflights users on 2/9. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:20 pm
ORD
- PQC
1 stop22h 30m
Korean Air
Thu 5/712:10 am
PQC
- ORD
1 stop21h 30m
Korean Air
Deal found 2/9![Korean Air logo]()
$1,249
This Cathay Pacific deal was found by Cheapflights users on 2/8. 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.
Fri 4/1712:27 pm
STL
- HAN
2 stops41h 43m
Multiple Airlines
Thu 4/307:10 pm
HAN
- STL
2 stops39h 49m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$1,034
This BusinessClass deal was found by Cheapflights users on 2/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:30 am
ORD
- DAD
1 stop23h 10m
EVA Air
Thu 4/210:10 am
DAD
- ORD
1 stop22h 50m
EVA Air
Deal found 2/10![EVA Air logo]()
$1,263
This Ovago deal was found by Cheapflights users on 2/8. 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.
Wed 3/256:38 am
STL
- HAN
2 stops45h 02m
Cathay Pacific
Wed 4/110:55 am
HAN
- STL
2 stops24h 03m
Cathay Pacific
Deal found 2/8![Cathay Pacific logo]()
$1,331
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ORD
- SGN
2 stops27h 55m
United Airlines
Sun 9/611:15 pm
SGN
- ORD
1 stop28h 10m
United Airlines
Deal found 2/9![United Airlines logo]()
$917
This Cathay Pacific deal was found by Cheapflights users on 2/8. 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.
Fri 4/1712:27 pm
STL
- HAN
2 stops33h 28m
Multiple Airlines
Sun 4/2610:55 am
HAN
- STL
2 stops24h 04m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$1,034
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/112:10 pm
ORD
- DAD
2 stops57h 55m
Etihad Airways
Wed 4/112:50 pm
DAD
- ORD
2 stops55h 45m
Etihad Airways
Deal found 2/10![Etihad Airways logo]()
$1,286
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:30 am
ORD
- DAD
1 stop23h 10m
EVA Air
Tue 3/3110:10 am
DAD
- ORD
2 stops31h 58m
EVA Air
Deal found 2/10![EVA Air logo]()
$1,325
Last-minute flights from Illinois to VietnamDiscover last-minute flight deals from Illinois to Vietnam. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Vietnam. Data last updated February 11, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sat 2/288:20 pm
ORD
- SGN
2 stops37h 35m
United Airlines
Thu 3/196:00 am
SGN
- ORD
2 stops29h 00m
United Airlines
Deal found 2/10![United Airlines logo]()
$907
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 3/14:25 pm
ORD
- SGN
1 stop40h 25m
United Airlines
Thu 3/196:00 am
SGN
- ORD
2 stops29h 00m
United Airlines
Deal found 2/10![United Airlines logo]()
$924
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 3/19:15 pm
ORD
- SGN
2 stops36h 40m
United Airlines
Fri 3/136:00 am
SGN
- ORD
2 stops30h 58m
United Airlines
Deal found 2/10![United Airlines logo]()
$928
This ScholarTrip deal was found by Cheapflights users on 2/10. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:35 pm
ORD
- HAN
1 stop38h 55m
Cathay Pacific
Tue 3/1711:05 am
HAN
- ORD
1 stop38h 50m
Cathay Pacific
Deal found 2/10![Cathay Pacific logo]()
$798
This Justfly.com deal was found by Cheapflights users on 2/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:30 pm
ORD
- SGN
1 stop41h 25m
Air India
Thu 3/268:55 pm
SGN
- ORD
2 stops27h 35m
Air India
Deal found 2/10![Air India logo]()
$913
This Delta deal was found by Cheapflights users on 2/10. 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 3/26:20 pm
MDW
- SGN
2 stops39h 05m
Delta
Wed 3/188:00 am
SGN
- MDW
2 stops26h 31m
Delta
Deal found 2/10![Delta logo]()
$928
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:29 pm
ORD
- SGN
2 stops34h 21m
China Airlines
Tue 5/2610:50 am
SGN
- ORD
2 stops31h 50m
China Airlines
Deal found 2/9![China Airlines logo]()
$936
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/31:10 pm
ORD
- HAN
1 stop40h 00m
Etihad Airways
Thu 3/197:40 am
HAN
- ORD
1 stop36h 55m
Etihad Airways
Deal found 2/10![Etihad Airways logo]()
$925
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:54 pm
ORD
- SGN
2 stops35h 56m
China Airlines
Mon 3/911:00 am
SGN
- ORD
2 stops39h 13m
China Airlines
Deal found 2/9![China Airlines logo]()
$929
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 3/126:17 am
ORD
- SGN
2 stops28h 38m
United Airlines
Thu 3/196:00 am
SGN
- ORD
2 stops29h 00m
United Airlines
Deal found 2/10![United Airlines logo]()
$918
This Air India deal was found by Cheapflights users on 2/10. 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 Air India is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/222:30 pm
ORD
- SGN
1 stop41h 25m
Air India
Sun 4/128:55 pm
SGN
- ORD
1 stop26h 15m
Air India
Deal found 2/10![Air India logo]()
$915
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/272:30 pm
ORD
- SGN
1 stop41h 25m
Air India
Sat 4/118:55 pm
SGN
- ORD
2 stops26h 15m
Air India
Deal found 2/9![Air India logo]()
$906
One-way flights from Illinois to VietnamSearch for one-way flight options from Illinois to Vietnam. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
Search for one-way flight options from Illinois to Vietnam. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This oojo deal was found by Cheapflights users on 2/8. 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 5/36:00 am
ORD
- HAN
2 stops54h 45m
Philippine Airlines
Deal found 2/8![Philippine Airlines logo]()
$348
This oojo deal was found by Cheapflights users on 2/8. 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 3/103:54 pm
ORD
- DAD
2 stops33h 36m
Philippine Airlines
Deal found 2/8![Philippine Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:51 pm
ORD
- HAN
2 stops50h 39m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
ORD
- HAN
2 stops44h 40m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:51 pm
ORD
- DAD
2 stops40h 29m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$413
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:00 am
STL
- SGN
2 stops42h 30m
Philippine Airlines
Deal found 2/9![Philippine Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:43 am
ORD
- HAN
3 stops40h 32m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 2/10. 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 2/164:28 pm
STL
- SGN
3 stops41h 27m
United Airlines
Deal found 2/10![United Airlines logo]()
$423
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/167:41 am
STL
- SGN
2 stops27h 34m
ANA
Deal found 2/10![ANA logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:51 pm
ORD
- DAD
3 stops51h 49m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:49 pm
ORD
- HAN
2 stops50h 06m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 4/78:30 am
STL
- SGN
2 stops25h 35m
United Airlines
Deal found 2/10![United Airlines logo]()
$432
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $798 (ScholarTrip) |
One-way from | $348 (oojo) |
Popular in | June |
Cheapest in | November |
Average price | $1,040 |
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 February 11, 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
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/19
6:35 pm-10:05 pm
3 stops39h 30m
Ho Chi Minh City
Thu 4/23
7:00 am-8:35 am
3 stops37h 35m
$832
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/5
8:21 am-12:15 am
2 stops27h 54m
Ho Chi Minh City
Wed 5/6
11:15 pm-9:08 pm
2 stops33h 53m
$858
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/5
8:30 am-10:05 pm
2 stops25h 35m
Ho Chi Minh City
Wed 5/6
7:00 am-9:08 pm
3 stops26h 08m
$881
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Wed 5/6
2:35 pm-10:05 pm
3 stops43h 30m
Ho Chi Minh City
Wed 7/1
11:15 pm-11:27 pm
2 stops36h 12m
$884
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sat 5/9
4:44 pm-10:05 pm
3 stops41h 21m
Ho Chi Minh City
Fri 5/22
11:15 pm-8:38 pm
2 stops33h 23m
$901
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Tue 5/5
7:00 am-10:05 pm
2 stops27h 05m
Ho Chi Minh City
Tue 5/26
7:00 am-11:16 pm
2 stops28h 16m
$917
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Tue 8/4
6:00 am-9:55 pm
2 stops27h 55m
Ho Chi Minh City
Sun 9/6
11:15 pm-3:25 pm
1 stop28h 10m
$917
ChicagoHo Chi Minh City
MDW - SGN
MDWSGN
Chicago Midway
Tue 3/3
6:20 pm-11:20 pm
2 stops40h 00m
Ho Chi Minh City
Wed 3/18
8:00 am-10:31 pm
2 stops26h 31m
$928
ChicagoHo Chi Minh City
MDW - SGN
MDWSGN
Chicago Midway
Mon 3/2
6:20 pm-10:25 pm
2 stops39h 05m
Ho Chi Minh City
Thu 3/19
8:00 am-10:31 pm
2 stops26h 31m
$928
ChicagoHo Chi Minh City
MDW - SGN
MDWSGN
Chicago Midway
Tue 3/3
6:20 pm-10:25 pm
2 stops39h 05m
Ho Chi Minh City
Thu 3/19
8:00 am-10:31 pm
2 stops26h 31m
$928
Showing 1-10 of 60 results
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.
ORD-HAN
ORD-DAD
STL-SGN
ORD-SGN
MDW-SGN
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
USIL-VN0
ORD-HAN
ORD-DAD
STL-SGN
ORD-SGN
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 $914). 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.
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.
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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.
Complete your trip
Complete your trip to Vietnam by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Vietnam by cabin class
Find flights from Illinois to Vietnam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Vietnam flights
Browse other Illinois and Vietnam flight options. Last updated on February 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Vietnam
Find the right flight back to Illinois after your stay in Vietnam
Illinois to Vietnam flights
Consider these flights traveling from Illinois to Vietnam.
Fly to Vietnam regions
Consider these flights traveling to Vietnam regions.
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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$583 | Average$1,058 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$592 | Average$902 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$632 | Average$709 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$662 | Average$943 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$681 | Average$1,231 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$766 | Average$1,060 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$782 | Average$1,183 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$801 | Average$1,040 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$843 | Average$1,128 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$886 | Average$1,247 | FlexibilityNo cancel fee | On-time74% |