$412+ Cheap flights from Illinois to Vietnam
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SGN
Nov 6 — Nov 131
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Vietnam with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 October 7, 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 October 7, 2026.
This Kissandfly.com deal was found by Cheapflights users on 10/4. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:10 am -
1 stop23h 40m
Sun 11/222:05 pm -
1 stop31h 25m
Deal found 10/4![Korean Air logo]()
$835
This Traveloka deal was found by Cheapflights users on 10/6. 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 Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:10 pm -
1 stop21h 20m
Tue 11/177:45 pm -
1 stop29h 45m
Deal found 10/6![Cathay Pacific logo]()
$843
This oojo deal was found by Cheapflights users on 10/5. 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 10/283:10 pm -
1 stop30h 55m
Sun 11/17:25 pm -
1 stop30h 05m
Deal found 10/5![Cathay Pacific logo]()
$848
This oojo deal was found by Cheapflights users on 10/4. 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 10/204:15 pm -
1 stop29h 50m
Mon 10/267:45 pm -
1 stop29h 45m
Deal found 10/4![Cathay Pacific logo]()
$850
This Trip.com deal was found by Cheapflights users on 10/3. 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 11/311:10 am -
1 stop23h 40m
Tue 11/1711:40 pm -
1 stop21h 50m
Deal found 10/3![Korean Air logo]()
$851
This Trip.com deal was found by Cheapflights users on 10/2. 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 11/311:10 am -
1 stop23h 40m
Wed 11/1111:40 pm -
1 stop21h 50m
Deal found 10/2![Korean Air logo]()
$852
This oojo deal was found by Cheapflights users on 10/2. 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 11/42:10 pm -
1 stop38h 55m
Mon 11/96:55 pm -
1 stop30h 35m
Deal found 10/2![Cathay Pacific logo]()
$855
This oojo deal was found by Cheapflights users on 10/6. 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 11/162:10 pm -
1 stop31h 25m
Thu 11/267:15 am -
1 stop18h 15m
Deal found 10/6![Cathay Pacific logo]()
$856
This oojo deal was found by Cheapflights users on 10/3. 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 11/162:10 pm -
1 stop39h 25m
Wed 11/2511:45 am -
1 stop37h 45m
Deal found 10/3![Cathay Pacific logo]()
$857
This oojo deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:10 pm -
1 stop39h 05m
Tue 11/107:25 pm -
1 stop30h 05m
Deal found 10/3![Cathay Pacific logo]()
$862
This IEagle deal was found by Cheapflights users on 10/3. 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.
Mon 11/162:10 pm -
1 stop32h 30m
Mon 12/710:20 am -
1 stop39h 10m
Deal found 10/3![Cathay Pacific logo]()
$865
This IEagle deal was found by Cheapflights users on 10/5. 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.
Mon 10/194:15 pm -
1 stop29h 50m
Mon 12/711:45 am -
1 stop37h 45m
Deal found 10/5![Cathay Pacific logo]()
$865
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 October 7, 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 October 7, 2026.
This Korean Air deal was found by Cheapflights users on 10/2. 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.
Wed 3/2412:10 pm -
1 stop22h 15m
Wed 4/71:55 pm -
1 stop31h 45m
Deal found 10/2![Korean Air logo]()
$818
This oojo deal was found by Cheapflights users on 10/2. 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 11/42:10 pm -
1 stop30h 35m
Sun 11/86:55 pm -
1 stop30h 35m
Deal found 10/2![Cathay Pacific logo]()
$855
This United Airlines deal was found by Cheapflights users on 10/4. 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 11/165:59 am -
2 stops28h 11m
Wed 11/257:30 am -
1 stop20h 20m
Deal found 10/4![United Airlines logo]()
$876
This Delta deal was found by Cheapflights users on 10/4. 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.
Thu 2/257:10 am -
2 stops27h 40m
Wed 3/242:05 pm -
2 stops38h 32m
Deal found 10/4![Delta logo]()
$879
This Philippine Airlines deal was found by Cheapflights users on 10/5. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:56 pm -
2 stops31h 29m
Tue 11/172:25 pm -
1 stop39h 30m
Deal found 10/5![Multiple Airlines logo]()
$1,083
This Turkish Airlines deal was found by Cheapflights users on 10/5. 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.
Mon 12/288:15 pm -
2 stops50h 50m
Tue 1/51:05 pm -
2 stops57h 55m
Deal found 10/5![Turkish Airlines logo]()
$1,493
This EVA Air deal was found by Cheapflights users on 10/2. 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.
Sun 10/1112:30 am -
1 stop23h 05m
Thu 10/1512:55 pm -
1 stop19h 50m
Deal found 10/2![EVA Air logo]()
$1,503
This STARLUX Airlines deal was found by Cheapflights users on 10/5. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:17 pm -
2 stops34h 33m
Sun 1/1011:40 am -
2 stops25h 53m
Deal found 10/5![STARLUX Airlines logo]()
$1,626
This Delta deal was found by Cheapflights users on 10/4. 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 2/176:00 am -
2 stops28h 50m
Wed 3/172:05 pm -
2 stops33h 51m
Deal found 10/4![Delta logo]()
$879
This United Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
2 stops28h 10m
Tue 11/177:30 am -
2 stops27h 30m
Deal found 10/3![United Airlines logo]()
$886
This Korean Air deal was found by Cheapflights users on 10/4. 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 1/3011:10 am -
1 stop35h 00m
Sat 2/2012:20 pm -
1 stop33h 10m
Deal found 10/4![Korean Air logo]()
$973
This Delta deal was found by Cheapflights users on 10/4. 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 2/165:25 pm -
2 stops40h 00m
Tue 3/162:05 pm -
2 stops33h 51m
Deal found 10/4![Delta logo]()
$885
This United Airlines deal was found by Cheapflights users on 10/4. 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 10/189:40 pm -
2 stops38h 35m
Thu 10/227:00 am -
2 stops25h 22m
Deal found 10/4![United Airlines logo]()
$889
This Delta deal was found by Cheapflights users on 10/3. 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 2/235:25 pm -
2 stops28h 45m
Wed 3/2412:20 pm -
2 stops33h 32m
Deal found 10/3![Delta logo]()
$890
This United Airlines deal was found by Cheapflights users on 10/2. 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 1/186:00 am -
2 stops28h 10m
Mon 3/16:00 am -
2 stops31h 04m
Deal found 10/2![United Airlines logo]()
$894
This Korean Air deal was found by Cheapflights users on 10/5. 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 11/811:10 am -
1 stop22h 15m
Wed 11/1111:45 pm -
1 stop21h 45m
Deal found 10/5![Korean Air logo]()
$1,016
This Delta deal was found by Cheapflights users on 10/3. 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 2/235:25 pm -
2 stops28h 45m
Tue 3/2312:20 pm -
2 stops33h 32m
Deal found 10/3![Delta logo]()
$890
This Japan Airlines deal was found by Cheapflights users on 10/3. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:00 am -
2 stops27h 25m
Tue 12/297:50 am -
2 stops45h 59m
Deal found 10/3![Japan Airlines logo]()
$2,379
This China Airlines deal was found by Cheapflights users on 10/6. 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.
Sat 11/72:05 pm -
2 stops31h 30m
Mon 11/165:30 pm -
2 stops25h 25m
Deal found 10/6![Multiple Airlines logo]()
$1,225
This United Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:25 pm -
2 stops35h 45m
Tue 12/157:30 am -
1 stop19h 20m
Deal found 10/6![United Airlines logo]()
$926
This Delta deal was found by Cheapflights users on 10/3. 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 1/17:25 am -
2 stops40h 25m
Sun 1/2411:40 pm -
2 stops37h 06m
Deal found 10/3![Delta logo]()
$929
This China Airlines deal was found by Cheapflights users on 10/2. 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 1/203:50 pm -
3 stops29h 10m
Sat 1/3011:00 am -
2 stops32h 00m
Deal found 10/2![Multiple Airlines logo]()
$1,265
This United Airlines deal was found by Cheapflights users on 10/5. 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 1/167:00 am -
2 stops27h 10m
Sun 2/77:30 am -
1 stop19h 20m
Deal found 10/5![United Airlines logo]()
$976
This Delta deal was found by Cheapflights users on 10/5. 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 11/306:00 am -
2 stops28h 50m
Mon 12/1411:40 pm -
2 stops25h 24m
Deal found 10/5![Delta logo]()
$929
This United Airlines deal was found by Cheapflights users on 10/5. 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 3/238:50 am -
2 stops26h 20m
Tue 4/67:00 am -
1 stop19h 55m
Deal found 10/5![United Airlines logo]()
$1,006
This China Airlines deal was found by Cheapflights users on 10/4. 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.
Mon 2/13:50 pm -
2 stops29h 45m
Mon 2/155:30 pm -
2 stops30h 50m
Deal found 10/4![Multiple Airlines logo]()
$1,342
This Delta deal was found by Cheapflights users on 10/2. 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.
Thu 11/126:00 am -
2 stops28h 50m
Sun 12/62:05 pm -
2 stops34h 59m
Deal found 10/2![Delta logo]()
$929
This Delta deal was found by Cheapflights users on 10/4. 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 11/166:00 am -
2 stops27h 25m
Wed 11/252:05 pm -
2 stops38h 10m
Deal found 10/4![Delta logo]()
$929
This United Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:00 am -
2 stops27h 10m
Sun 1/2411:05 pm -
1 stop21h 15m
Deal found 10/2![United Airlines logo]()
$1,044
This EVA Air deal was found by Cheapflights users on 10/7. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:45 pm -
2 stops29h 50m
Wed 11/116:20 pm -
2 stops24h 35m
Deal found 10/7![Multiple Airlines logo]()
$1,396
Last-minute flights from Illinois to VietnamDiscover last-minute flight deals from Illinois to Vietnam. Data last updated October 7, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Vietnam. Data last updated October 7, 2026 and is based on user searches.
This IEagle deal was found by Cheapflights users on 10/5. 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.
Mon 10/194:15 pm -
1 stop29h 50m
Mon 12/711:45 am -
1 stop37h 45m
Deal found 10/5![Cathay Pacific logo]()
$865
This oojo deal was found by Cheapflights users on 10/4. 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 10/204:15 pm -
1 stop29h 50m
Mon 10/267:45 pm -
1 stop29h 45m
Deal found 10/4![Cathay Pacific logo]()
$850
This oojo deal was found by Cheapflights users on 10/5. 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 10/283:10 pm -
1 stop30h 55m
Sun 11/17:25 pm -
1 stop30h 05m
Deal found 10/5![Cathay Pacific logo]()
$848
This Trip.com deal was found by Cheapflights users on 10/3. 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 11/311:10 am -
1 stop23h 40m
Tue 11/1711:40 pm -
1 stop21h 50m
Deal found 10/3![Korean Air logo]()
$851
This Trip.com deal was found by Cheapflights users on 10/2. 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 11/311:10 am -
1 stop23h 40m
Wed 11/1111:40 pm -
1 stop21h 50m
Deal found 10/2![Korean Air logo]()
$852
This oojo deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:10 pm -
1 stop39h 05m
Tue 11/107:25 pm -
1 stop30h 05m
Deal found 10/3![Cathay Pacific logo]()
$862
This oojo deal was found by Cheapflights users on 10/2. 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 11/42:10 pm -
1 stop38h 55m
Mon 11/96:55 pm -
1 stop30h 35m
Deal found 10/2![Cathay Pacific logo]()
$855
This Kissandfly.com deal was found by Cheapflights users on 10/4. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:10 am -
1 stop23h 40m
Sun 11/222:05 pm -
1 stop31h 25m
Deal found 10/4![Korean Air logo]()
$835
This Traveloka deal was found by Cheapflights users on 10/6. 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 Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:10 pm -
1 stop21h 20m
Tue 11/177:45 pm -
1 stop29h 45m
Deal found 10/6![Cathay Pacific logo]()
$843
This oojo deal was found by Cheapflights users on 10/6. 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 11/162:10 pm -
1 stop31h 25m
Thu 11/267:15 am -
1 stop18h 15m
Deal found 10/6![Cathay Pacific logo]()
$856
This oojo deal was found by Cheapflights users on 10/3. 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 11/162:10 pm -
1 stop39h 25m
Wed 11/2511:45 am -
1 stop37h 45m
Deal found 10/3![Cathay Pacific logo]()
$857
This IEagle deal was found by Cheapflights users on 10/3. 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.
Mon 11/162:10 pm -
1 stop32h 30m
Mon 12/710:20 am -
1 stop39h 10m
Deal found 10/3![Cathay Pacific logo]()
$865
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 October 7, 2026.
Search for one-way flight options from Illinois to Vietnam. Find affordable one-way fares based on user searches. Data last updated October 7, 2026.
This oojo deal was found by Cheapflights users on 10/2. 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 1/192:10 pm -
1 stop30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Cathay Pacific logo]()
$412
This oojo deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:10 pm -
1 stop38h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Cathay Pacific logo]()
$419
This oojo deal was found by Cheapflights users on 10/4. 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 3/22:10 pm -
1 stop32h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Cathay Pacific logo]()
$425
This oojo deal was found by Cheapflights users on 10/2. 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 3/12:10 pm -
1 stop30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Cathay Pacific logo]()
$429
This Traveloka deal was found by Cheapflights users on 10/3. 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 Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:10 am -
1 stop35h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Korean Air logo]()
$434
This oojo deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:10 pm -
1 stop30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Cathay Pacific logo]()
$439
This oojo deal was found by Cheapflights users on 10/5. 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 3/92:10 pm -
1 stop30h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Cathay Pacific logo]()
$439
This oojo deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:10 pm -
1 stop39h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Cathay Pacific logo]()
$442
This FlightHub deal was found by Cheapflights users on 10/4. 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 3/12:10 pm -
1 stop38h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Cathay Pacific logo]()
$448
This FlightHub deal was found by Cheapflights users on 10/5. 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 11/92:10 pm -
1 stop39h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Cathay Pacific logo]()
$448
This Justfly.com deal was found by Cheapflights users on 10/6. 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.
Sun 2/211:15 pm -
1 stop39h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Etihad Airways logo]()
$450
This Korean Air deal was found by Cheapflights users on 10/5. 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.
Wed 11/1111:10 am -
1 stop35h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Korean Air logo]()
$451
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 October 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $794 (Expedia) |
One-way from | $412 (oojo) |
Popular in | June |
Cheapest in | October |
Average price | $920 |
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 7,457,451 searches. Data last updated October 7, 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
ChicagoPhu Quoc
ORD Chicago O'Hare Intl - PQC Phu Quoc Duong Dang
ORDPQC
Chicago O'Hare Intl
Tue 3/9
2:10 pm-9:45 am
1 stop30h 35m
Phu Quoc Duong Dang
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$439
ChicagoHanoi
ORD Chicago O'Hare Intl - HAN Hanoi Noibai
ORDHAN
Chicago O'Hare Intl
Wed 11/11
11:10 am-11:10 am
1 stop35h 00m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$451
ChicagoHo Chi Minh City
ORD Chicago O'Hare Intl - SGN Ho Chi Minh City
ORDSGN
Chicago O'Hare Intl
Tue 12/8
1:05 pm-11:10 pm
2 stops45h 05m
Ho Chi Minh City
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$468
ChicagoHo Chi Minh City
ORD Chicago O'Hare Intl - SGN Ho Chi Minh City
ORDSGN
Chicago O'Hare Intl
Wed 10/14
7:45 pm-10:05 pm
2 stops38h 20m
Ho Chi Minh City
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$468
ChicagoPhu Quoc
ORD Chicago O'Hare Intl - PQC Phu Quoc Duong Dang
ORDPQC
Chicago O'Hare Intl
Tue 3/9
7:00 am-10:25 pm
2 stops26h 25m
Phu Quoc Duong Dang
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$477
ChicagoDa Nang
ORD Chicago O'Hare Intl - DAD Da Nang
ORDDAD
Chicago O'Hare Intl
Sun 1/24
2:10 pm-9:20 am
1 stop30h 10m
Da Nang
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$484
ChicagoHanoi
ORD Chicago O'Hare Intl - HAN Hanoi Noibai
ORDHAN
Chicago O'Hare Intl
Tue 11/3
4:00 pm-11:10 am
2 stops54h 10m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$492
ChicagoHo Chi Minh City
ORD Chicago O'Hare Intl - SGN Ho Chi Minh City
ORDSGN
Chicago O'Hare Intl
Fri 2/26
7:00 am-11:50 pm
2 stops27h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$492
ChicagoDa Nang
ORD Chicago O'Hare Intl - DAD Da Nang
ORDDAD
Chicago O'Hare Intl
Sun 3/7
2:10 pm-5:45 pm
1 stop38h 35m
Da Nang
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$499
ChicagoPhu Quoc
ORD Chicago O'Hare Intl - PQC Phu Quoc Duong Dang
ORDPQC
Chicago O'Hare Intl
Tue 1/5
7:00 am-10:25 pm
2 stops26h 25m
Phu Quoc Duong Dang
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$502
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-HAN
ORD-DAD
ORD-PQC
ORD-SGN
ORD-CXR
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
ORD-PQC
ORD-SGN
What is the cheapest month to book a flight from Illinois to Vietnam?
Currently, September is the cheapest month in which you can book a flight from Illinois to Vietnam (average of $966). Flying from Illinois to Vietnam in June is currently the most expensive (average of $1,500). 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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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 October 7, 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 7,457,451 searches. Data last updated October 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$658 | Average$1,084 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$662 | Average$912 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$773 | Average$1,048 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$780 | Average$1,000 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$784 | Average$1,199 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$792 | Average$971 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$801 | Average$1,040 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$810 | Average$1,221 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$820 | Average$1,323 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$858 | Average$1,114 | FlexibilityNo cancel fee | On-time69% |