$540 Find Cheap Flights from Reagan Washington National Airport to Vietnam - Compare and Save

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Price, demand and travel trends for Washington, D.C. Reagan-National Airport to Vietnam flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Washington, D.C. Reagan-National Airport to Vietnam cheaper or more expensive than last year?

Fares from Washington, D.C. Reagan-National Airport to Vietnam are running about the same as they were around this time last year, averaging $1,264 round-trip.

What are the cheapest fares from Washington, D.C. Reagan-National Airport to Vietnam right now?

Here are the cheapest round-trip fares from Washington, D.C. Reagan-National Airport to Vietnam on KAYAK in the last week:

• Da Nang (DAD) from $942
• Ho Chi Minh City (SGN) from $1,069
• Hanoi Noibai (HAN) from $1,104
• Phu Quoc Duong Dang (PQC) from $1,151

What’s the cheapest month to fly from Washington, D.C. Reagan-National Airport to Vietnam?

November is the cheapest time of year to fly, with average fares of $1,014. Prices are highest in July, when average flight costs increase to around $1,474.

When is the best time to book flights from Washington, D.C. Reagan-National Airport to Vietnam?

Booking last-minute, within 2 weeks of departure, usually offers the lowest fares from Washington, D.C. Reagan-National Airport to Vietnam. It runs around 12% cheaper than the route's average fare over the last 12 months.

Which airport in Vietnam is the cheapest to fly to from Washington, D.C. Reagan-National Airport?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Vietnam are:

• Hanoi Noibai (HAN) from $1,157
• Ho Chi Minh City (SGN) from $1,275
• Phu Quoc Duong Dang (PQC) from $1,351

What’s the cheapest day to fly from Washington, D.C. Reagan-National Airport to Vietnam?

Tuesday tends to be the cheapest day to fly from Washington, D.C. Reagan-National Airport to Vietnam, while Saturday is the most expensive. Fares run about 19% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Vietnam?

Data from the past 12 months shows it's cheapest to fly to Vietnam during the afternoon with average prices of $1,129. The evening is the most expensive time to fly, with average prices of $1,377.

Key details for Washington, D.C. Reagan-National Airport to Vietnam flights

Low season

October

Cheapest flight

$529
Beat the crowds with an average 72% drop in travelers.
The most popular month to fly with an average 77% increase in travelers.
One-way flight from Washington, D.C. Reagan-National Airport to Da Nang

Your Washington, D.C. Reagan-National Airport to Vietnam flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Washington, D.C. Reagan-National Airport to Vietnam?

    Yes. Fares from Washington, D.C. Reagan-National Airport to Vietnam are low right now. As a rule of thumb, a round-trip under $1,127 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Washington, D.C. Reagan-National Airport to Vietnam?

    Over the past 12 months, round-trip fares from Washington, D.C. Reagan-National Airport to Vietnam have ranged from $1,127 to $1,549.

  • What are the main airports serving Vietnam?

    Vietnam has 22 airports. The three busiest are Ho Chi Minh City (SGN) (38% of arrivals), Hanoi Noibai (HAN) (33%) and Da Nang (DAD) (28%).

  • What airlines fly nonstop from Washington, D.C. Reagan-National Airport to Vietnam?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Washington, D.C. Reagan-National Airport to Vietnam. However, United Airlines offers a one-stop option.

  • Which cabin classes are available on flights from Washington, D.C. Reagan-National Airport to Vietnam?

    On flights from Washington, D.C. Reagan-National Airport to Vietnam you can book Economy Class, Premium Economy Class or Business Class.

  • What are some popular landmarks in Vietnam?

    KAYAK travelers' favorite landmarks in Vietnam include:

    • My Khê Beach
    • Ben Thanh Market
    • Hoi An Ancient Town
    • Hoan Kiem Lake

Your guide to booking Washington, D.C. Reagan-National Airport to Vietnam flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you're flexible on timing, there's no need to rush. Booking last minute (within 2 weeks of departure) tends to be around 12% cheaper than the route's average fare over the last 12 months.

    Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for November when flights are typically cheapest and avoid July when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Saturday cost about 19% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Hanoi Noibai (HAN) is the cheapest airport to fly into from Washington, D.C. Reagan-National Airport. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Ho Chi Minh City, which is the most popular destination in Vietnam. From there, it's easy to continue on to other popular destinations such as Da Nang, Hanoi and Phu Quoc.

Reviews of the top airlines flying from Reagan-National to Vietnam

 
Need help choosing which airline to fly with from Reagan-National to Vietnam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8652 reviews
7.8Comfort
8.1Boarding
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

I don't know why the crew decided to board 15 minutes early without informing anyone not at the gate. Why would you have the app send a notification that we're boarding on time, instead board early, and then rush me to the gate. Then have me check my carry-on when I specifically packed my bag as to not do so.

4.0 OkayKevin, Sep 2026
Read more Delta reviews

I don't know why the crew decided to board 15 minutes early without informing anyone not at the gate. Why would you have the app send a notification that we're boarding on time, instead board early, and then rush me to the gate. Then have me check my carry-on when I specifically packed my bag as to not do so.

Long delays at both DCA and MSP; Crew did not keep us informed (or very little). Airplane was showing signs of heavy use (not up to Delta standards). Food options for Business Class have dropped in quality. After landing we sat on tarmac for maybe 25 minutes with no provided chance to use the bathroom and crew did not tell us what was going on or give an estimated time to expect to be at a gate.

Flight was delayed for about an hour but overall good experience

The gentleman at the gate I think his name is RIE was exceptional

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

The flight from Frankfurt to Pisa was cancelled and we were rebooked to route through London. The flight to London was delayed for maintenance issues and we missed our connection flight. Lufthansa automatically rebooked my wife on the next flight but I was not rebooked. I spent over an hour trying to get onto the flight. Ultimately my wife’s gate checked bag from Washington did not arrive in Pisa and remained in London. Very bad experience overall.

Flight attendant incredibly rude. Stuck her finger in my drink and didn’t even have the courtesy to apologize.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Never nice, United Express partners always do an amazing job.

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

The flight was on time and the crew were great.

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

Boarding area is a mess. Lines not bounded and gate area too small. Food options (on this specific flight) were poor and you couldn’t pick part of it since it was like a mash of chicken and other unrecognisable stuff. Comfort of seats along with child noise made it difficult to get a good sleep. Last, the flight attendant that served my aisle was rude (others seemed fine) towards me and others.

More options for your flight from Reagan-National to Vietnam

Complete your trip to Vietnam with a hotel stay or car rental