$544+ Cheap flights from Reagan-National (DCA) 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SGN
Oct 24 — Oct 311
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Reagan-National 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Reagan-National to Vietnam
Cheapest
Best
Last-minute
One-way
Cheapest flights from Reagan-National to VietnamExplore the most affordable flight options available from Reagan-National to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Reagan-National to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/38:50 pm -
2 stops26h 20m
Wed 12/212:20 pm -
2 stops23h 22m
Deal found 9/20![Delta logo]()
$1,048
This Korean Air deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/46:08 am -
2 stops27h 37m
Wed 12/211:05 pm -
2 stops25h 39m
Deal found 9/20![Korean Air logo]()
$1,053
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/47:00 am -
2 stops28h 05m
Wed 12/212:25 am -
2 stops31h 46m
Deal found 9/20![United Airlines logo]()
$1,058
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:40 am -
2 stops27h 25m
Tue 12/812:25 am -
2 stops30h 50m
Deal found 9/20![ANA logo]()
$1,062
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 11/96:25 am -
2 stops28h 40m
Wed 11/2512:25 am -
2 stops52h 03m
Deal found 9/22![United Airlines logo]()
$1,063
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/16:30 am -
3 stops28h 35m
Wed 10/147:00 am -
3 stops26h 52m
Deal found 9/20![United Airlines logo]()
$1,066
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 12/17:00 am -
2 stops26h 50m
Wed 2/246:00 am -
3 stops29h 50m
Deal found 9/23![United Airlines logo]()
$1,067
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 12/54:13 pm -
3 stops66h 42m
Tue 12/2211:05 pm -
2 stops34h 00m
Deal found 9/21![United Airlines logo]()
$1,071
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 11/177:59 am -
2 stops26h 26m
Mon 1/1811:40 pm -
2 stops26h 58m
Deal found 9/23![Delta logo]()
$1,072
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/27:00 am -
2 stops29h 15m
Thu 11/266:00 am -
2 stops22h 45m
Deal found 9/20![United Airlines logo]()
$1,073
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 9/288:30 am -
2 stops26h 25m
Tue 10/137:00 am -
2 stops24h 08m
Deal found 9/23![United Airlines logo]()
$1,074
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 11/167:40 am -
2 stops28h 35m
Sun 1/1711:05 pm -
2 stops31h 18m
Deal found 9/23![United Airlines logo]()
$1,075
Best flights from Reagan-National to VietnamDiscover carefully curated flight deals from Reagan-National to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Reagan-National to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 2/217:40 am -
2 stops26h 45m
Wed 3/107:55 am -
2 stops25h 20m
Deal found 9/21![Delta logo]()
$1,087
This Korean Air deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/208:50 am -
2 stops26h 20m
Fri 10/302:05 pm -
2 stops35h 08m
Deal found 9/19![Korean Air logo]()
$1,092
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/189:30 am -
2 stops27h 45m
Thu 10/227:00 am -
2 stops25h 59m
Deal found 9/20![United Airlines logo]()
$1,097
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/39:30 am -
2 stops38h 10m
Tue 11/101:00 pm -
2 stops43h 00m
Deal found 9/19![Multiple Airlines logo]()
$1,108
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/139:40 am -
2 stops26h 35m
Fri 10/237:30 am -
2 stops26h 19m
Deal found 9/20![Delta logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 11/57:40 am -
2 stops28h 35m
Sat 11/146:00 am -
3 stops26h 57m
Deal found 9/21![United Airlines logo]()
$1,110
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 11/245:00 pm -
2 stops30h 40m
Tue 12/11:00 pm -
2 stops43h 00m
Deal found 9/23![Multiple Airlines logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/136:00 am -
2 stops29h 15m
Mon 10/1911:35 pm -
2 stops31h 33m
Deal found 9/20![United Airlines logo]()
$1,122
This Korean Air deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 2/138:20 am -
2 stops26h 05m
Tue 2/237:55 am -
2 stops25h 20m
Deal found 9/23![Korean Air logo]()
$1,242
This Cathay Pacific deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Thu 1/219:30 am -
2 stops36h 35m
Sat 2/137:25 pm -
2 stops32h 29m
Deal found 9/21![Multiple Airlines logo]()
$1,174
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 11/76:00 am -
2 stops27h 45m
Sat 11/1411:05 pm -
2 stops27h 53m
Deal found 9/23![Delta logo]()
$1,198
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/146:00 am -
2 stops29h 15m
Tue 10/2011:35 pm -
2 stops31h 33m
Deal found 9/20![United Airlines logo]()
$1,122
This Korean Air deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 1/278:20 am -
2 stops41h 55m
Mon 3/83:45 pm -
2 stops34h 05m
Deal found 9/23![Korean Air logo]()
$1,252
This Cathay Pacific deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Mon 1/259:30 am -
2 stops36h 35m
Fri 2/127:25 pm -
2 stops32h 29m
Deal found 9/20![Multiple Airlines logo]()
$1,174
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 1/196:10 am -
2 stops27h 35m
Sun 3/712:20 pm -
2 stops23h 09m
Deal found 9/23![Delta logo]()
$1,214
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 2/185:00 pm -
2 stops33h 15m
Tue 3/1611:00 pm -
2 stops30h 05m
Deal found 9/22![Korean Air logo]()
$1,252
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 1/87:00 am -
2 stops26h 50m
Fri 1/2911:05 pm -
2 stops30h 00m
Deal found 9/23![United Airlines logo]()
$1,153
This IEagle deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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.
Sun 11/89:30 am -
2 stops38h 10m
Sun 11/151:00 pm -
2 stops43h 00m
Deal found 9/23![Multiple Airlines logo]()
$1,187
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 1/227:40 am -
2 stops26h 05m
Thu 3/1112:20 pm -
2 stops21h 55m
Deal found 9/23![Delta logo]()
$1,214
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 2/178:20 am -
2 stops25h 20m
Wed 3/1711:00 pm -
2 stops25h 50m
Deal found 9/22![Korean Air logo]()
$1,252
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 3/159:30 am -
2 stops26h 35m
Thu 3/1812:25 am -
2 stops33h 01m
Deal found 9/19![United Airlines logo]()
$1,162
This Cathay Pacific deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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.
Thu 1/1410:10 am -
2 stops35h 55m
Thu 3/187:25 pm -
2 stops31h 29m
Deal found 9/19![Multiple Airlines logo]()
$1,228
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 stops27h 40m
Mon 3/2211:00 pm -
2 stops35h 18m
Deal found 9/23![Delta logo]()
$1,247
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 2/158:20 am -
2 stops25h 20m
Wed 3/1711:00 pm -
2 stops25h 50m
Deal found 9/22![Korean Air logo]()
$1,252
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 1/237:00 am -
2 stops29h 15m
Sat 2/136:00 am -
3 stops29h 50m
Deal found 9/23![United Airlines logo]()
$1,164
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 2/227:00 am -
2 stops26h 40m
Tue 5/1110:55 pm -
2 stops35h 23m
Deal found 9/23![Delta logo]()
$1,247
This Korean Air deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 2/168:20 am -
2 stops25h 20m
Mon 3/1511:00 pm -
2 stops25h 50m
Deal found 9/22![Korean Air logo]()
$1,252
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 1/257:00 am -
2 stops26h 50m
Wed 2/176:00 am -
3 stops29h 50m
Deal found 9/20![United Airlines logo]()
$1,182
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 2/247:40 am -
2 stops26h 00m
Tue 5/1110:55 pm -
2 stops35h 34m
Deal found 9/23![Delta logo]()
$1,247
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 1/47:00 am -
2 stops26h 50m
Thu 3/46:00 am -
3 stops29h 50m
Deal found 9/19![United Airlines logo]()
$1,182
Last-minute flights from Reagan-National to VietnamDiscover last-minute flight deals from Reagan-National to Vietnam. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Reagan-National to Vietnam. Data last updated September 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 9/269:40 am -
2 stops25h 30m
Thu 10/157:30 am -
2 stops24h 09m
Deal found 9/21![Delta logo]()
$1,085
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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 9/279:40 am -
2 stops25h 30m
Wed 10/147:30 am -
2 stops24h 09m
Deal found 9/21![Delta logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 9/288:30 am -
2 stops26h 25m
Tue 10/137:00 am -
2 stops24h 08m
Deal found 9/23![United Airlines logo]()
$1,074
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/16:30 am -
3 stops28h 35m
Wed 10/147:00 am -
3 stops26h 52m
Deal found 9/20![United Airlines logo]()
$1,066
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/26:00 am -
3 stops29h 05m
Mon 10/57:00 am -
2 stops25h 05m
Deal found 9/19![United Airlines logo]()
$1,098
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/76:00 am -
2 stops28h 55m
Sat 10/107:00 am -
2 stops25h 59m
Deal found 9/23![United Airlines logo]()
$1,094
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/137:28 am -
2 stops27h 47m
Wed 10/2111:35 pm -
2 stops31h 33m
Deal found 9/20![United Airlines logo]()
$1,122
This Justfly.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:30 am -
2 stops49h 30m
Wed 10/211:50 am -
2 stops29h 10m
Deal found 9/20![Multiple Airlines logo]()
$1,089
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
2 stops29h 00m
Wed 11/257:50 am -
2 stops26h 56m
Deal found 9/20![American Airlines logo]()
$1,088
This FlightHub deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/189:30 am -
2 stops25h 25m
Tue 11/2411:05 pm -
2 stops24h 59m
Deal found 9/20![ANA logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/189:30 am -
2 stops27h 45m
Thu 10/227:00 am -
2 stops25h 59m
Deal found 9/20![United Airlines logo]()
$1,097
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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 10/279:30 am -
2 stops37h 45m
Sun 4/183:45 pm -
2 stops39h 15m
Deal found 9/23![Multiple Airlines logo]()
$1,082
One-way flights from Reagan-National to VietnamSearch for one-way flight options from Reagan-National to Vietnam. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Reagan-National to Vietnam. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This FlightHub deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 am -
2 stops41h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$544
This Justfly.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 2/148:00 am -
2 stops41h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$546
This Expedia deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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.
Mon 2/156:55 pm -
2 stops27h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am -
3 stops38h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$560
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/38:50 pm -
2 stops36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$566
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 10/48:20 pm -
2 stops40h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$567
This Korean Air deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/18:50 pm -
2 stops50h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Korean Air logo]()
$568
This Expedia deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Sun 1/316:59 pm -
2 stops41h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$568
This Korean Air deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 11/126:59 am -
2 stops40h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Korean Air logo]()
$569
This Cathay Pacific deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” 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.
Thu 1/78:30 am -
2 stops37h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$571
This Cathay Pacific deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” 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.
Thu 2/189:30 am -
2 stops36h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” 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 1/237:50 pm -
3 stops63h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$573
Find flight deals from Reagan-National to Vietnam
Keep the following information in mind while searching for Reagan-National to Vietnam flight deals. Data was last updated September 24, 2026.
Round-trip from | $1,048 (Delta) |
|---|---|
One-way from | $544 (FlightHub) |
Popular in | May |
Cheapest in | April |
Average price | $1,151 |
Cheapflights Fare Finder
Customize your flight search to find flights from Reagan-National 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 September 24, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Hanoi
DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai
DCAHAN
Washington, D.C. Reagan-National
Mon 11/2
6:59 am-9:45 pm
2 stops26h 46m
Hanoi Noibai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$568
Washington, D.C.Hanoi
DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai
DCAHAN
Washington, D.C. Reagan-National
Thu 1/7
8:30 am-10:05 am
2 stops37h 35m
Hanoi Noibai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$571
Washington, D.C.Hanoi
DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai
DCAHAN
Washington, D.C. Reagan-National
Thu 2/18
9:30 am-10:05 am
2 stops36h 35m
Hanoi Noibai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$572
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Sat 1/23
7:50 pm-10:55 pm
3 stops63h 05m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$573
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Mon 1/4
7:00 am-11:50 pm
2 stops28h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$576
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Thu 1/7
9:00 am-11:50 pm
2 stops26h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$576
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Sun 1/31
5:55 pm-10:55 pm
2 stops41h 00m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$576
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Fri 1/22
6:00 am-10:25 pm
2 stops28h 25m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$591
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Thu 3/4
7:05 pm-10:55 pm
3 stops39h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$592
Washington, D.C.Ho Chi Minh City
DCA Washington, D.C. Reagan-National - SGN Ho Chi Minh City
DCASGN
Washington, D.C. Reagan-National
Fri 11/6
4:34 pm-10:55 pm
3 stops42h 21m
Ho Chi Minh City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$592
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Reagan-National to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam from Reagan-National with our price prediction graph.
DCA-SGN
DCA-HAN
DCA-DAD
DCA-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 Washington, D.C. Reagan-National Airport to Vietnam
DCA-VN0
DCA-SGN
DCA-HAN
DCA-DAD
DCA-CXR
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Vietnam?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $985). Flying from Washington, D.C. Reagan-National Airport to Vietnam in July is currently the most expensive (average of $1,695). 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.
Reviews of airlines servicing Vietnam
Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated September 24, 2026.
Get a feel of what it's like to fly with Delta and United Airlines from Washington, D.C. Reagan-National Airport to Vietnam by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Reagan-National 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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
Alternative routes for Reagan-National 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 Reagan-National to Vietnam by cabin class
Find flights from Reagan-National to Vietnam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Reagan-National and Vietnam flights
Browse other Reagan-National and Vietnam flight options. Last updated on September 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Reagan-National to Vietnam flights
Consider these flights traveling from Reagan-National to Vietnam.
Fly to Vietnam regions
Consider these flights traveling to Vietnam regions.
Top 2 airlines flying from Reagan-National to Vietnam
Discover the top 2 airlines that operate flights from Reagan-National 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 September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$985 | Average$1,213 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,089 | Average$1,521 | FlexibilityNo cancel fee | On-timeN/A |