$269+ Cheap flights from Washington 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
Apr 11 — Apr 181
Round-trip
1 adult, Economy
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Find cheap flights from Washington to Vietnam with Cheapflights
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Cheapest flights from Washington to VietnamExplore the most affordable flight options available from Washington to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.
Explore the most affordable flight options available from Washington to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1610:15 am
SEA
- DAD
1 stop39h 40m
Singapore Airlines
Mon 9/2111:55 am
DAD
- SEA
1 stop34h 50m
Singapore Airlines
Deal found 3/9![Singapore Airlines logo]()
$492
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:15 am
SEA
- HAN
1 stop41h 25m
Singapore Airlines
Wed 9/912:40 pm
HAN
- SEA
1 stop34h 05m
Singapore Airlines
Deal found 3/9![Singapore Airlines logo]()
$497
This FlightHub deal was found by Cheapflights users on 3/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:15 am
SEA
- DAD
1 stop39h 40m
Singapore Airlines
Mon 9/711:55 am
DAD
- SEA
1 stop34h 50m
Singapore Airlines
Deal found 3/8![Singapore Airlines logo]()
$516
This FlightHub deal was found by Cheapflights users on 3/10. 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 9/110:15 am
SEA
- HAN
1 stop41h 25m
Singapore Airlines
Mon 9/712:40 pm
HAN
- SEA
1 stop34h 05m
Singapore Airlines
Deal found 3/10![Singapore Airlines logo]()
$521
This Justfly.com deal was found by Cheapflights users on 3/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:15 am
SEA
- HAN
1 stop38h 50m
Singapore Airlines
Sat 9/194:00 pm
HAN
- SEA
1 stop30h 45m
Singapore Airlines
Deal found 3/9![Singapore Airlines logo]()
$546
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Wed 9/1611:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/9![Asiana Airlines logo]()
$580
This Vliegwinkel deal was found by Cheapflights users on 3/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Sun 5/1011:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$582
This oojo deal was found by Cheapflights users on 3/7. 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.
Sun 5/312:55 am
SEA
- HAN
1 stop31h 05m
Asiana Airlines
Tue 5/121:25 pm
HAN
- SEA
1 stop15h 30m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$591
This Trip.com deal was found by Cheapflights users on 3/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:10 pm
SEA
- HAN
1 stop35h 35m
Philippine Airlines
Thu 8/202:15 pm
HAN
- SEA
1 stop19h 50m
Philippine Airlines
Deal found 3/8![Philippine Airlines logo]()
$599
This oojo deal was found by Cheapflights users on 3/9. 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 10/111:10 pm
SEA
- HAN
1 stop24h 05m
Philippine Airlines
Wed 10/141:45 am
HAN
- SEA
1 stop32h 20m
Philippine Airlines
Deal found 3/9![Philippine Airlines logo]()
$610
This KAYAK deal was found by Cheapflights users on 3/8. 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 9/312:25 pm
SEA
- DAD
1 stop30h 55m
Cathay Pacific
Tue 9/811:50 am
DAD
- SEA
1 stop36h 30m
Cathay Pacific
Deal found 3/8![Cathay Pacific logo]()
$614
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:55 am
SEA
- HAN
1 stop31h 05m
Asiana Airlines
Wed 4/2211:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/12![Asiana Airlines logo]()
$616
Best flights from Washington to VietnamDiscover carefully curated flight deals from Washington to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 12, 2026.
Discover carefully curated flight deals from Washington to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 12, 2026.
This Asiana Airlines deal was found by Cheapflights users on 3/7. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:55 am
SEA
- HAN
1 stop31h 05m
Asiana Airlines
Sun 5/311:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$630
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Tue 9/14:15 pm
SEA
- HAN
2 stops28h 20m
Korean Air
Mon 9/712:05 pm
HAN
- SEA
1 stop36h 35m
Korean Air
Deal found 3/9![Korean Air logo]()
$685
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:00 pm
SEA
- HAN
1 stop31h 50m
Delta
Wed 4/2211:10 pm
HAN
- SEA
1 stop27h 57m
Delta
Deal found 3/12![Delta logo]()
$726
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sat 8/14:30 pm
SEA
- SGN
1 stop39h 25m
United Airlines
Sat 9/1211:15 pm
SGN
- SEA
1 stop29h 10m
United Airlines
Deal found 3/7![United Airlines logo]()
$750
This Trip.com deal was found by Cheapflights users on 3/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:55 am
SEA
- PQC
2 stops28h 05m
Multiple Airlines
Tue 4/287:50 am
PQC
- SEA
2 stops21h 05m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$810
This China Airlines deal was found by Cheapflights users on 3/12. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:15 am
SEA
- HAN
1 stop19h 20m
China Airlines
Thu 4/165:50 pm
HAN
- SEA
1 stop15h 25m
China Airlines
Deal found 3/12![China Airlines logo]()
$970
This oojo deal was found by Cheapflights users on 3/11. 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 4/264:19 pm
PSC
- SGN
2 stops29h 21m
EVA Air
Sun 5/312:50 pm
SGN
- PSC
2 stops47h 22m
EVA Air
Deal found 3/11![EVA Air logo]()
$981
This oojo deal was found by Cheapflights users on 3/7. 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.
Tue 4/219:30 pm
PDX
- DAD
2 stops30h 05m
STARLUX Airlines
Tue 4/286:45 pm
DAD
- PDX
2 stops28h 45m
STARLUX Airlines
Deal found 3/7![STARLUX Airlines logo]()
$1,041
This Singapore Airlines deal was found by Cheapflights users on 3/9. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:15 am
SEA
- CXR
1 stop65h 50m
Singapore Airlines
Thu 4/3012:10 pm
CXR
- SEA
1 stop34h 35m
Singapore Airlines
Deal found 3/9![Singapore Airlines logo]()
$1,351
This Emirates deal was found by Cheapflights users on 3/12. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:15 pm
SEA
- DAD
2 stops38h 35m
Emirates
Wed 4/2211:30 pm
DAD
- SEA
2 stops27h 55m
Emirates
Deal found 3/12![Emirates logo]()
$1,379
This Korean Air deal was found by Cheapflights users on 3/8. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:20 am
SEA
- SGN
2 stops24h 50m
Korean Air
Mon 9/711:45 pm
SGN
- SEA
2 stops31h 10m
Korean Air
Deal found 3/8![Korean Air logo]()
$691
This Delta deal was found by Cheapflights users on 3/9. 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.
Sat 8/86:55 pm
SEA
- SGN
2 stops38h 20m
Delta
Tue 8/257:30 am
SGN
- SEA
2 stops21h 54m
Delta
Deal found 3/9![Delta logo]()
$775
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 4/227:37 pm
SEA
- SGN
3 stops36h 28m
United Airlines
Mon 5/47:00 am
SGN
- SEA
2 stops26h 48m
United Airlines
Deal found 3/10![United Airlines logo]()
$776
This Korean Air deal was found by Cheapflights users on 3/7. 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.
Fri 4/247:35 am
SEA
- HAN
2 stops24h 00m
Korean Air
Wed 5/611:10 pm
HAN
- SEA
1 stop25h 30m
Korean Air
Deal found 3/7![Korean Air logo]()
$725
This Trip.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:55 am
SEA
- PQC
2 stops27h 25m
Multiple Airlines
Fri 5/17:20 am
PQC
- SEA
2 stops21h 35m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$831
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/195:45 pm
SEA
- SGN
3 stops38h 20m
United Airlines
Mon 5/47:00 am
SGN
- SEA
2 stops26h 48m
United Airlines
Deal found 3/10![United Airlines logo]()
$776
This Korean Air deal was found by Cheapflights users on 3/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:59 pm
SEA
- HAN
2 stops35h 36m
Korean Air
Wed 4/2211:10 pm
HAN
- SEA
1 stop25h 30m
Korean Air
Deal found 3/12![Korean Air logo]()
$735
This Delta deal was found by Cheapflights users on 3/7. 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.
Tue 9/15:40 pm
SEA
- DAD
2 stops37h 25m
Delta
Sun 9/610:55 pm
DAD
- SEA
2 stops32h 00m
Delta
Deal found 3/7![Delta logo]()
$842
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 9/36:54 am
PDX
- HAN
2 stops25h 21m
United Airlines
Mon 9/711:35 pm
HAN
- PDX
2 stops29h 12m
United Airlines
Deal found 3/7![United Airlines logo]()
$778
This China Airlines deal was found by Cheapflights users on 3/8. 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 4/222:50 pm
PDX
- HAN
2 stops29h 40m
Multiple Airlines
Wed 4/295:50 pm
HAN
- PDX
2 stops29h 40m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$891
This Korean Air deal was found by Cheapflights users on 3/7. 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.
Sun 4/1912:50 pm
SEA
- HAN
1 stop18h 45m
Korean Air
Fri 5/812:05 pm
HAN
- SEA
2 stops24h 50m
Korean Air
Deal found 3/7![Korean Air logo]()
$771
This EVA Air deal was found by Cheapflights users on 3/9. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2811:50 pm
SEA
- DAD
1 stop21h 45m
EVA Air
Tue 4/2812:55 pm
DAD
- SEA
1 stop19h 55m
EVA Air
Deal found 3/9![EVA Air logo]()
$1,030
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sat 4/187:37 pm
SEA
- SGN
2 stops36h 28m
United Airlines
Wed 5/67:00 am
SGN
- SEA
3 stops25h 32m
United Airlines
Deal found 3/7![United Airlines logo]()
$785
This Delta deal was found by Cheapflights users on 3/11. 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.
Thu 5/77:25 am
SEA
- PQC
2 stops25h 25m
Delta
Tue 5/1212:10 am
PQC
- SEA
1 stop24h 30m
Delta
Deal found 3/11![Delta logo]()
$874
This China Airlines deal was found by Cheapflights users on 3/8. 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.
Sat 4/111:15 am
SEA
- DAD
1 stop25h 15m
China Airlines
Mon 4/205:45 am
DAD
- SEA
2 stops27h 30m
China Airlines
Deal found 3/8![China Airlines logo]()
$1,147
This Delta deal was found by Cheapflights users on 3/11. 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.
Wed 5/67:00 am
SEA
- PQC
2 stops25h 50m
Delta
Tue 5/1212:10 am
PQC
- SEA
1 stop24h 30m
Delta
Deal found 3/11![Delta logo]()
$874
This Korean Air deal was found by Cheapflights users on 3/11. 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.
Wed 8/197:20 am
SEA
- DAD
2 stops23h 45m
Korean Air
Mon 9/2110:55 pm
DAD
- SEA
1 stop25h 45m
Korean Air
Deal found 3/11![Korean Air logo]()
$800
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Tue 4/75:45 pm
SEA
- SGN
3 stops38h 20m
United Airlines
Tue 5/57:00 am
SGN
- SEA
2 stops28h 06m
United Airlines
Deal found 3/11![United Airlines logo]()
$815
This Expedia deal was found by Cheapflights users on 3/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:46 pm
PDX
- DAD
2 stops29h 44m
Multiple Airlines
Wed 7/110:00 am
DAD
- PDX
2 stops37h 24m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$1,014
This Asiana Airlines deal was found by Cheapflights users on 3/7. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:55 am
SEA
- HAN
1 stop31h 05m
Asiana Airlines
Sat 4/1811:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$1,230
Last-minute flights from Washington to VietnamDiscover last-minute flight deals from Washington to Vietnam. Data last updated March 12, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Vietnam. Data last updated March 12, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:55 am
SEA
- HAN
1 stop31h 05m
Asiana Airlines
Wed 4/2211:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/12![Asiana Airlines logo]()
$616
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:45 am
SEA
- SGN
1 stop22h 35m
Cathay Pacific
Mon 5/46:20 pm
SGN
- SEA
1 stop29h 45m
Cathay Pacific
Deal found 3/12![Cathay Pacific logo]()
$640
This KAYAK deal was found by Cheapflights users on 3/9. 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.
Thu 4/1611:45 am
SEA
- SGN
1 stop22h 35m
Cathay Pacific
Tue 5/196:55 am
SGN
- SEA
1 stop17h 10m
Cathay Pacific
Deal found 3/9![Cathay Pacific logo]()
$642
This oojo deal was found by Cheapflights users on 3/11. 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.
Thu 4/1612:55 am
SEA
- SGN
1 stop31h 45m
Asiana Airlines
Sun 5/312:10 am
SGN
- SEA
1 stop28h 45m
Asiana Airlines
Deal found 3/11![Asiana Airlines logo]()
$643
This FlightHub deal was found by Cheapflights users on 3/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Tue 5/51:25 pm
HAN
- SEA
1 stop15h 30m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$620
This Asiana Airlines deal was found by Cheapflights users on 3/7. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Sun 5/311:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$630
This oojo deal was found by Cheapflights users on 3/7. 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 4/2012:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Tue 5/51:25 pm
HAN
- SEA
1 stop15h 30m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$618
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/2011:45 am
SEA
- SGN
1 stop22h 35m
Cathay Pacific
Wed 5/207:10 am
SGN
- SEA
1 stop16h 55m
Cathay Pacific
Deal found 3/9![Cathay Pacific logo]()
$634
This oojo deal was found by Cheapflights users on 3/8. 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 4/2112:55 am
SEA
- SGN
1 stop31h 45m
Asiana Airlines
Wed 5/612:10 am
SGN
- SEA
1 stop28h 45m
Asiana Airlines
Deal found 3/8![Asiana Airlines logo]()
$645
This KAYAK deal was found by Cheapflights users on 3/7. 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.
Thu 4/2311:45 am
SEA
- HAN
1 stop32h 10m
Cathay Pacific
Mon 5/411:00 am
HAN
- SEA
1 stop37h 05m
Cathay Pacific
Deal found 3/7![Cathay Pacific logo]()
$625
This oojo deal was found by Cheapflights users on 3/10. 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.
Thu 4/2312:55 am
SEA
- SGN
1 stop20h 10m
Asiana Airlines
Sun 5/3112:10 am
SGN
- SEA
1 stop28h 45m
Asiana Airlines
Deal found 3/10![Asiana Airlines logo]()
$631
This Vliegwinkel deal was found by Cheapflights users on 3/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Sun 5/1011:30 pm
HAN
- SEA
1 stop29h 25m
Asiana Airlines
Deal found 3/7![Asiana Airlines logo]()
$582
One-way flights from Washington to VietnamSearch for one-way flight options from Washington to Vietnam. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
Search for one-way flight options from Washington to Vietnam. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
This oojo deal was found by Cheapflights users on 3/11. 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.
Sat 4/2510:15 am
SEA
- HAN
1 stop41h 05m
Singapore Airlines
Deal found 3/11![Singapore Airlines logo]()
$269
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/310:15 am
SEA
- DAD
1 stop39h 40m
Singapore Airlines
Deal found 3/9![Singapore Airlines logo]()
$269
This oojo deal was found by Cheapflights users on 3/7. 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.
Fri 5/1510:15 am
SEA
- HAN
1 stop41h 25m
Singapore Airlines
Deal found 3/7![Singapore Airlines logo]()
$270
This KAYAK deal was found by Cheapflights users on 3/8. 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.
Tue 4/711:45 am
SEA
- DAD
1 stop39h 40m
Cathay Pacific
Deal found 3/8![Cathay Pacific logo]()
$301
This KAYAK deal was found by Cheapflights users on 3/10. 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 4/1311:45 am
SEA
- HAN
1 stop32h 10m
Cathay Pacific
Deal found 3/10![Cathay Pacific logo]()
$304
This oojo deal was found by Cheapflights users on 3/11. 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.
Thu 4/2312:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Deal found 3/11![Asiana Airlines logo]()
$305
This oojo deal was found by Cheapflights users on 3/9. 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 3/1612:10 am
SEA
- HAN
1 stop32h 15m
Asiana Airlines
Deal found 3/9![Asiana Airlines logo]()
$306
This Mytrip deal was found by Cheapflights users on 3/10. 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 5/412:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Deal found 3/10![Asiana Airlines logo]()
$311
This Trip.com deal was found by Cheapflights users on 3/7. 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 8/411:10 pm
SEA
- HAN
1 stop35h 35m
Philippine Airlines
Deal found 3/7![Philippine Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Thu 5/711:45 am
SEA
- SGN
1 stop39h 35m
Cathay Pacific
Deal found 3/10![Cathay Pacific logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Fri 4/1712:55 am
SEA
- HAN
1 stop21h 20m
Asiana Airlines
Deal found 3/10![Asiana Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/3011:45 am
SEA
- HAN
1 stop32h 10m
Cathay Pacific
Deal found 3/10![Cathay Pacific logo]()
$326
Find flight deals from Washington to Vietnam
Keep the following information in mind while searching for Washington to Vietnam flight deals. Data was last updated March 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $492 (FlightHub) |
One-way from | $269 (oojo) |
Popular in | December |
Cheapest in | April |
Average price | $763 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 March 12, 2026.
Use the filters below to find and compare flights from Washington to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHanoi
SEA - HAN
SEAHAN
Seattle/Tacoma Intl
Mon 4/20
12:55 am-10:00 pm
1 stop31h 05m
Hanoi Noibai
Sun 5/3
11:30 pm-2:55 pm
1 stop29h 25m
$630
SeattleHanoi
SEA - HAN
SEAHAN
Seattle/Tacoma Intl
Tue 9/1
4:15 pm-10:35 am
2 stops28h 20m
Hanoi Noibai
Mon 9/7
12:05 pm-10:40 am
1 stop36h 35m
$685
SeattleHo Chi Minh City
SEA - SGN
SEASGN
Seattle/Tacoma Intl
Thu 9/3
7:20 am-10:10 pm
2 stops24h 50m
Ho Chi Minh City
Mon 9/7
11:45 pm-4:55 pm
2 stops31h 10m
$691
SeattleHanoi
SEA - HAN
SEAHAN
Seattle/Tacoma Intl
Fri 4/24
7:35 am-9:35 pm
2 stops24h 00m
Hanoi Noibai
Wed 5/6
11:10 pm-10:40 am
1 stop25h 30m
$725
SeattleHanoi
SEA - HAN
SEAHAN
Seattle/Tacoma Intl
Tue 4/14
1:00 pm-10:50 am
1 stop31h 50m
Hanoi Noibai
Wed 4/22
11:10 pm-1:07 pm
1 stop27h 57m
$726
SeattleHanoi
SEA - HAN
SEAHAN
Seattle/Tacoma Intl
Sun 4/12
7:59 pm-9:35 pm
2 stops35h 36m
Hanoi Noibai
Wed 4/22
11:10 pm-10:40 am
1 stop25h 30m
$735
SeattleHo Chi Minh City
SEA - SGN
SEASGN
Seattle/Tacoma Intl
Sat 8/1
4:30 pm-9:55 pm
1 stop39h 25m
Ho Chi Minh City
Sat 9/12
11:15 pm-2:25 pm
1 stop29h 10m
$750
SeattleHanoi
SEA - HAN
SEAHAN
Seattle/Tacoma Intl
Sun 4/19
12:50 pm-9:35 pm
1 stop18h 45m
Hanoi Noibai
Fri 5/8
12:05 pm-10:55 pm
2 stops24h 50m
$771
SeattleHo Chi Minh City
SEA - SGN
SEASGN
Seattle/Tacoma Intl
Sat 8/8
6:55 pm-11:15 pm
2 stops38h 20m
Ho Chi Minh City
Tue 8/25
7:30 am-3:24 pm
2 stops21h 54m
$775
SeattleHo Chi Minh City
SEA - SGN
SEASGN
Seattle/Tacoma Intl
Wed 4/22
7:37 pm-10:05 pm
3 stops36h 28m
Ho Chi Minh City
Mon 5/4
7:00 am-7:48 pm
2 stops26h 48m
$776
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam from Washington with our price prediction graph.
SEA-DAD
SEA-HAN
SEA-SGN
SEA-PQC
PDX-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 Washington to Vietnam
USWA-VN0
SEA-DAD
SEA-HAN
SEA-SGN
SEA-PQC
What is the cheapest month to book a flight from State of Washington to Vietnam?
Currently, February is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $493). Flying from State of Washington to Vietnam in June is currently the most expensive (average of $716). 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 Washington 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
Flights by cabin class
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Top regions
Alternative routes for Washington 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 Washington to Vietnam by cabin class
Find flights from Washington to Vietnam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Vietnam flights
Browse other Washington and Vietnam flight options. Last updated on March 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 Washington after your stay in Vietnam
Washington to Vietnam flights
Consider these flights traveling from Washington to Vietnam.
Fly to Vietnam regions
Consider these flights traveling to Vietnam regions.
Top 10 airlines flying from Washington to Vietnam
Discover the top 10 airlines that operate flights from Washington 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 March 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$432 | Average$904 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$493 | Average$910 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$509 | Average$680 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$544 | Average$692 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$610 | Average$946 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$616 | Average$778 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$618 | Average$739 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$651 | Average$780 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$659 | Average$793 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$724 | Average$863 | FlexibilityNo cancel fee | On-timeN/A |