$464+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Jul 12 — Jul 191
Round-trip
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 June 12, 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 June 12, 2026.
This KAYAK deal was found by Cheapflights users on 6/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:00 pm
ORD
- DAD
1 stop37h 25m
Cathay Pacific
Tue 9/296:10 pm
DAD
- ORD
1 stop31h 45m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$870
This Ovago deal was found by Cheapflights users on 6/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:00 pm
ORD
- DAD
1 stop37h 25m
Cathay Pacific
Tue 9/1511:50 am
DAD
- ORD
1 stop38h 05m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$871
This oojo deal was found by Cheapflights users on 6/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:00 pm
ORD
- HAN
1 stop38h 10m
Cathay Pacific
Mon 9/217:10 pm
HAN
- ORD
1 stop30h 45m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$873
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:00 pm
ORD
- DAD
1 stop37h 25m
Cathay Pacific
Mon 9/146:10 pm
DAD
- ORD
1 stop32h 10m
Cathay Pacific
Deal found 6/12![Cathay Pacific logo]()
$915
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.
Wed 9/304:15 pm
ORD
- HAN
1 stop37h 55m
Cathay Pacific
Wed 10/1410:25 am
HAN
- ORD
1 stop39h 30m
Cathay Pacific
Deal found 6/10![Cathay Pacific logo]()
$918
This KAYAK deal was found by Cheapflights users on 6/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:00 pm
ORD
- DAD
1 stop37h 25m
Cathay Pacific
Thu 10/226:10 pm
DAD
- ORD
1 stop31h 45m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$920
This oojo deal was found by Cheapflights users on 6/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:00 pm
ORD
- HAN
1 stop29h 55m
Cathay Pacific
Thu 9/1710:25 am
HAN
- ORD
1 stop39h 30m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$923
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:00 pm
ORD
- DAD
1 stop31h 05m
Cathay Pacific
Tue 9/2910:05 am
DAD
- ORD
1 stop39h 50m
Cathay Pacific
Deal found 6/10![Cathay Pacific logo]()
$925
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:00 pm
ORD
- DAD
1 stop29h 20m
Cathay Pacific
Mon 9/286:10 pm
DAD
- ORD
1 stop31h 45m
Cathay Pacific
Deal found 6/10![Cathay Pacific logo]()
$937
This KAYAK deal was found by Cheapflights users on 6/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:15 pm
ORD
- HAN
1 stop29h 40m
Cathay Pacific
Tue 10/67:10 pm
HAN
- ORD
1 stop30h 45m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$950
This ScholarTrip 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/302:35 pm
ORD
- HAN
1 stop38h 55m
Cathay Pacific
Wed 12/167:30 pm
HAN
- ORD
1 stop30h 25m
Cathay Pacific
Deal found 6/10![Cathay Pacific logo]()
$953
This KAYAK deal was found by Cheapflights users on 6/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:00 pm
ORD
- DAD
1 stop29h 20m
Cathay Pacific
Thu 11/1212:25 pm
DAD
- ORD
1 stop37h 30m
Cathay Pacific
Deal found 6/8![Cathay Pacific logo]()
$967
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 June 12, 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 June 12, 2026.
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:30 am
ORD
- SGN
2 stops28h 40m
Delta
Thu 8/201:55 pm
SGN
- ORD
2 stops34h 45m
Delta
Deal found 6/7![Delta logo]()
$995
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:25 pm
ORD
- SGN
1 stop40h 25m
United Airlines
Sun 11/2911:05 pm
SGN
- ORD
1 stop21h 15m
United Airlines
Deal found 6/9![United Airlines logo]()
$996
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:15 pm
ORD
- PQC
1 stop37h 45m
Korean Air
Wed 3/3112:10 am
PQC
- ORD
1 stop21h 30m
Korean Air
Deal found 6/11![Korean Air logo]()
$1,066
This Turkish Airlines 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:25 am
ORD
- HAN
1 stop40h 15m
Turkish Airlines
Mon 9/2810:55 pm
HAN
- ORD
1 stop22h 45m
Turkish Airlines
Deal found 6/11![Turkish Airlines logo]()
$1,070
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am
STL
- HAN
2 stops34h 55m
Multiple Airlines
Mon 11/167:10 pm
HAN
- STL
2 stops56h 05m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,078
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.
Sun 9/64:00 pm
ORD
- PQC
1 stop38h 05m
Cathay Pacific
Sat 9/127:05 pm
PQC
- ORD
1 stop31h 15m
Cathay Pacific
Deal found 6/9![Cathay Pacific logo]()
$1,080
This Etihad Airways deal was found by Cheapflights users on 6/7. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/228:20 pm
ORD
- HAN
1 stop32h 50m
Etihad Airways
Sat 11/287:40 am
HAN
- ORD
1 stop44h 20m
Etihad Airways
Deal found 6/7![Etihad Airways logo]()
$1,175
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:50 am
ORD
- SGN
2 stops25h 15m
United Airlines
Tue 9/227:00 am
SGN
- ORD
3 stops26h 30m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,000
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:00 am
MDW
- SGN
2 stops27h 25m
Delta
Mon 11/3011:50 pm
SGN
- MDW
2 stops29h 35m
Delta
Deal found 6/11![Delta logo]()
$1,029
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:15 am
ORD
- PQC
1 stop37h 45m
Korean Air
Tue 11/173:30 pm
PQC
- ORD
1 stop30h 00m
Korean Air
Deal found 6/10![Korean Air logo]()
$1,066
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:00 am
ORD
- SGN
3 stops28h 55m
United Airlines
Mon 11/3011:05 pm
SGN
- ORD
1 stop21h 15m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,005
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:29 am
STL
- SGN
2 stops43h 21m
Multiple Airlines
Wed 10/78:00 pm
SGN
- STL
2 stops39h 59m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,135
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:24 am
MDW
- SGN
2 stops25h 51m
Delta
Sun 9/611:45 pm
SGN
- MDW
2 stops34h 51m
Delta
Deal found 6/9![Delta logo]()
$1,079
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:10 pm
ORD
- DAD
1 stop38h 10m
Korean Air
Tue 2/233:45 pm
DAD
- ORD
1 stop29h 55m
Korean Air
Deal found 6/10![Korean Air logo]()
$1,094
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
ORD
- SGN
2 stops28h 05m
United Airlines
Fri 8/287:00 am
SGN
- ORD
2 stops22h 05m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,037
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 am
MDW
- SGN
2 stops29h 15m
Delta
Sat 10/3111:50 pm
SGN
- MDW
2 stops29h 35m
Delta
Deal found 6/7![Delta logo]()
$1,079
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:10 pm
ORD
- DAD
1 stop20h 55m
Korean Air
Sun 10/43:55 pm
DAD
- ORD
1 stop29h 35m
Korean Air
Deal found 6/9![Korean Air logo]()
$1,094
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:01 am
STL
- HAN
2 stops43h 09m
Cathay Pacific
Tue 9/2210:55 am
HAN
- STL
2 stops24h 48m
Cathay Pacific
Deal found 6/11![Cathay Pacific logo]()
$1,441
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:59 pm
ORD
- PQC
2 stops54h 01m
Delta
Thu 11/263:30 pm
PQC
- ORD
2 stops45h 20m
Delta
Deal found 6/11![Delta logo]()
$1,085
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:30 am
ORD
- SGN
2 stops30h 45m
United Airlines
Mon 8/247:00 am
SGN
- ORD
3 stops27h 46m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,103
This Korean Air deal was found by Cheapflights users on 6/7. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:10 pm
ORD
- DAD
1 stop20h 55m
Korean Air
Sun 10/2511:20 pm
DAD
- ORD
1 stop22h 10m
Korean Air
Deal found 6/7![Korean Air logo]()
$1,118
This EVA Air 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 pm
MDW
- SGN
2 stops25h 00m
Multiple Airlines
Mon 9/143:45 pm
SGN
- MDW
2 stops26h 05m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,366
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.
Wed 9/97:30 am
ORD
- DAD
2 stops25h 35m
Delta
Wed 9/303:55 pm
DAD
- ORD
2 stops33h 09m
Delta
Deal found 6/10![Delta logo]()
$1,105
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:10 pm
ORD
- DAD
1 stop38h 10m
Korean Air
Mon 9/143:55 pm
DAD
- ORD
1 stop29h 35m
Korean Air
Deal found 6/11![Korean Air logo]()
$1,118
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.
Thu 12/34:25 pm
ORD
- SGN
1 stop40h 25m
United Airlines
Tue 2/1611:05 pm
SGN
- ORD
1 stop21h 15m
United Airlines
Deal found 6/10![United Airlines logo]()
$1,121
This China Airlines deal was found by Cheapflights users on 6/8. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:35 pm
MDW
- SGN
2 stops30h 05m
Multiple Airlines
Fri 10/305:50 pm
SGN
- MDW
3 stops31h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,416
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:55 am
ORD
- DAD
2 stops24h 10m
Delta
Tue 9/2910:55 pm
DAD
- ORD
2 stops34h 38m
Delta
Deal found 6/11![Delta logo]()
$1,105
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:15 am
ORD
- SGN
1 stop23h 05m
Korean Air
Mon 11/308:00 am
SGN
- ORD
1 stop37h 30m
Korean Air
Deal found 6/9![Korean Air logo]()
$1,118
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:10 am
STL
- SGN
3 stops28h 55m
United Airlines
Tue 10/2011:15 pm
SGN
- STL
2 stops31h 01m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,123
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:54 am
MDW
- DAD
2 stops39h 26m
Delta
Mon 9/1410:55 pm
DAD
- MDW
2 stops25h 39m
Delta
Deal found 6/9![Delta logo]()
$1,105
Last-minute flights from Illinois to VietnamDiscover last-minute flight deals from Illinois to Vietnam. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Vietnam. Data last updated June 12, 2026 and is based on user searches.
This Gurufare deal was found by Cheapflights users on 6/8. 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.
Wed 7/89:35 pm
ORD
- SGN
2 stops60h 30m
EVA Air
Thu 10/87:00 am
SGN
- ORD
1 stop24h 05m
EVA Air
Deal found 6/8![EVA Air logo]()
$1,012
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Wed 7/89:30 pm
ORD
- SGN
2 stops38h 45m
United Airlines
Thu 10/87:00 am
SGN
- ORD
2 stops26h 20m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,015
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Fri 7/107:00 am
ORD
- SGN
2 stops27h 05m
United Airlines
Mon 7/137:00 am
SGN
- ORD
2 stops28h 16m
United Airlines
Deal found 6/8![United Airlines logo]()
$987
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:54 am
MDW
- SGN
2 stops25h 21m
Delta
Tue 8/1811:45 pm
SGN
- MDW
2 stops34h 51m
Delta
Deal found 6/7![Delta logo]()
$1,115
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.
Tue 7/216:00 am
ORD
- SGN
2 stops28h 05m
United Airlines
Tue 8/2511:15 pm
SGN
- ORD
2 stops34h 15m
United Airlines
Deal found 6/10![United Airlines logo]()
$1,011
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:30 am
ORD
- SGN
2 stops28h 45m
ANA
Thu 8/277:00 am
SGN
- ORD
1 stop33h 45m
ANA
Deal found 6/10![ANA logo]()
$999
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:48 am
ORD
- SGN
1 stop25h 17m
Multiple Airlines
Thu 8/277:00 am
SGN
- ORD
2 stops29h 59m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,004
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Wed 7/296:00 am
ORD
- SGN
2 stops28h 05m
United Airlines
Sat 8/297:00 am
SGN
- ORD
2 stops24h 00m
United Airlines
Deal found 6/8![United Airlines logo]()
$996
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:00 am
ORD
- SGN
3 stops29h 05m
United Airlines
Thu 9/107:00 am
SGN
- ORD
1 stop19h 55m
United Airlines
Deal found 6/11![United Airlines logo]()
$982
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:00 am
ORD
- SGN
2 stops27h 05m
United Airlines
Wed 8/267:00 am
SGN
- ORD
3 stops27h 46m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,000
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:00 am
ORD
- SGN
3 stops29h 05m
United Airlines
Mon 8/247:00 am
SGN
- ORD
2 stops29h 59m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,008
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:48 am
ORD
- SGN
1 stop25h 17m
ANA
Thu 9/107:00 am
SGN
- ORD
1 stop19h 55m
ANA
Deal found 6/11![ANA logo]()
$1,027
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 June 12, 2026.
Search for one-way flight options from Illinois to Vietnam. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This IEagle deal was found by Cheapflights users on 6/8. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:10 pm
ORD
- SGN
1 stop23h 05m
Korean Air
Deal found 6/8![Korean Air logo]()
$464
This Trip.com deal was found by Cheapflights users on 6/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 pm
ORD
- SGN
1 stop23h 05m
Korean Air
Deal found 6/7![Korean Air logo]()
$470
This Korean Air deal was found by Cheapflights users on 6/7. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:10 pm
ORD
- SGN
1 stop22h 00m
Korean Air
Deal found 6/7![Korean Air logo]()
$474
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:42 pm
ORD
- SGN
2 stops32h 53m
Delta
Deal found 6/9![Delta logo]()
$477
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:30 am
MDW
- SGN
2 stops24h 40m
Delta
Deal found 6/7![Delta logo]()
$477
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.
Sun 9/277:17 pm
ORD
- SGN
2 stops38h 53m
Delta
Deal found 6/10![Delta logo]()
$488
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:10 pm
ORD
- SGN
1 stop23h 05m
Delta
Deal found 6/7![Delta logo]()
$497
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:55 pm
ORD
- SGN
2 stops33h 40m
Delta
Deal found 6/7![Delta logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 10/292:20 pm
ORD
- HAN
3 stops36h 25m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$506
This ScholarTrip 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:10 pm
ORD
- SGN
1 stop22h 00m
Korean Air
Deal found 6/10![Korean Air logo]()
$517
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:10 pm
ORD
- SGN
1 stop36h 25m
Korean Air
Deal found 6/11![Korean Air logo]()
$539
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:28 am
ORD
- SGN
2 stops25h 42m
Delta
Deal found 6/8![Delta logo]()
$542
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 June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $870 (KAYAK) |
One-way from | $464 (IEagle) |
Popular in | June |
Cheapest in | September |
Average price | $1,620 |
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, 2026.
Use the filters below to find and compare flights from Illinois to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Mon 8/3
5:30 am-10:10 pm
2 stops28h 40m
Ho Chi Minh City
Thu 8/20
1:55 pm-12:40 pm
2 stops34h 45m
$995
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Wed 11/18
4:25 pm-9:50 pm
1 stop40h 25m
Ho Chi Minh City
Sun 11/29
11:05 pm-7:20 am
1 stop21h 15m
$996
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Sat 9/12
8:50 am-10:05 pm
2 stops25h 15m
Ho Chi Minh City
Tue 9/22
7:00 am-9:30 pm
3 stops26h 30m
$1,000
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Mon 11/16
5:00 am-10:55 pm
3 stops28h 55m
Ho Chi Minh City
Mon 11/30
11:05 pm-7:20 am
1 stop21h 15m
$1,005
ChicagoHo Chi Minh City
MDW - SGN
MDWSGN
Chicago Midway
Fri 11/20
6:00 am-10:25 pm
2 stops27h 25m
Ho Chi Minh City
Mon 11/30
11:50 pm-4:25 pm
2 stops29h 35m
$1,029
ChicagoHo Chi Minh City
ORD - SGN
ORDSGN
Chicago O'Hare Intl
Fri 7/31
6:00 am-10:05 pm
2 stops28h 05m
Ho Chi Minh City
Fri 8/28
7:00 am-5:05 pm
2 stops22h 05m
$1,037
ChicagoPhu Quoc
ORD - PQC
ORDPQC
Chicago O'Hare Intl
Sat 10/31
12:15 pm-2:00 pm
1 stop37h 45m
Phu Quoc Duong Dang
Wed 3/31
12:10 am-9:40 am
1 stop21h 30m
$1,066
ChicagoPhu Quoc
ORD - PQC
ORDPQC
Chicago O'Hare Intl
Fri 11/6
11:15 am-2:00 pm
1 stop37h 45m
Phu Quoc Duong Dang
Tue 11/17
3:30 pm-8:30 am
1 stop30h 00m
$1,066
ChicagoHanoi
ORD - HAN
ORDHAN
Chicago O'Hare Intl
Thu 9/24
11:25 am-3:40 pm
1 stop40h 15m
Hanoi Noibai
Mon 9/28
10:55 pm-9:40 am
1 stop22h 45m
$1,070
St. LouisHanoi
STL - HAN
STLHAN
Lambert-St Louis
Mon 11/9
7:00 am-6:55 am
2 stops34h 55m
Hanoi Noibai
Mon 11/16
7:10 pm-2:15 pm
2 stops56h 05m
$1,078
Showing 1-10 of 60 resultsSorted by cheapest first
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-DAD
ORD-HAN
ORD-SGN
ORD-PQC
STL-HAN
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-DAD
ORD-HAN
ORD-SGN
ORD-PQC
What is the cheapest month to book a flight from Illinois to Vietnam?
Currently, August is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $468). Flying from Illinois to Vietnam in March is currently the most expensive (average of $1,319). 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.
How far ahead should I book a flight from Illinois to Vietnam?
The price you pay for your flight from Illinois to Vietnam may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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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Complete your trip
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Top regions
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 June 12, 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 June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$650 | Average$1,073 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$662 | Average$912 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$670 | Average$949 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$681 | Average$1,319 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$704 | Average$1,124 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$766 | Average$1,094 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$768 | Average$1,041 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$774 | Average$1,178 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$801 | Average$1,040 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$875 | Average$1,261 | FlexibilityNo cancel fee | On-time74% |