$318 Find Cheap Flights from Las Vegas to Vietnam

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Las Vegas to Vietnam departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Las Vegas to Vietnam

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ho Chi Minh City
Ho Chi Minh City2 stops$677
Hanoi
Hanoi2 stops$656
Da Nang
Da Nang2 stops$863
Phu Quoc
Phu Quoc2 stops$1,227
Ho Chi Minh City
Ho Chi Minh City2 stops$677
Hanoi
Hanoi2 stops$656
Da Nang
Da Nang2 stops$863
Phu Quoc
Phu Quoc2 stops$1,227

Book Cheap Las Vegas to Vietnam Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Las Vegas to Vietnam that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Las Vegas to Vietnam

Tue, May 5 - Wed, May 20
Korean Air Logo
9:40 am - 9:35 pm
LAS
-
HAN
21h 55m
2 stops
Korean Air Logo
12:00 pm - 4:20 pm
HAN
-
LAS
18h 20m
1 stop
$656Korean Air
Tue, May 5 - Wed, May 20
Korean Air Logo
6:00 am - 9:35 pm
LAS
-
HAN
25h 35m
2 stops
Korean Air Logo
12:00 pm - 10:44 pm
HAN
-
LAS
24h 44m
2 stops
$667Korean Air
Tue, Apr 28 - Wed, Jun 3
United Airlines Logo
8:00 am - 10:05 pm
LAS
-
SGN
24h 05m
2 stops
United Airlines Logo
11:15 pm - 7:28 pm
SGN
-
LAS
34h 13m
2 stops
$677United Airlines
Tue, Apr 28 - Wed, Jun 3
United Airlines Logo
6:00 am - 10:05 pm
LAS
-
SGN
26h 05m
3 stops
United Airlines Logo
11:15 pm - 11:05 pm
SGN
-
LAS
37h 50m
2 stops
$681United Airlines
Tue, Apr 28 - Wed, Jun 3
ANA Logo
6:00 am - 10:05 pm
LAS
-
SGN
26h 05m
1 stop
ANA Logo
7:00 am - 7:28 pm
SGN
-
LAS
26h 28m
2 stops
$730ANA
Wed, Feb 25 - Wed, Mar 18
Cathay Pacific Logo
7:00 am - 10:35 am
LAS
-
SGN
36h 35m
2 stops
Cathay Pacific Logo
7:15 am - 10:51 pm
SGN
-
LAS
29h 36m
2 stops
$780Cathay Pacific
Thu, Apr 9 - Mon, Apr 20
ANA Logo
6:00 am - 10:15 pm
LAS
-
HAN
26h 15m
2 stops
ANA Logo
11:35 pm - 5:52 pm
HAN
-
LAS
32h 17m
2 stops
$780ANA
Wed, Apr 22 - Wed, May 6
STARLUX Airlines Logo
1:37 pm - 10:15 am
LAS
-
SGN
30h 38m
2 stops
STARLUX Airlines Logo
11:30 am - 10:53 pm
SGN
-
LAS
25h 23m
2 stops
$788STARLUX Airlines
Wed, Apr 22 - Wed, May 6
STARLUX Airlines Logo
1:37 pm - 10:15 am
LAS
-
SGN
30h 38m
2 stops
STARLUX Airlines Logo
11:30 am - 8:55 pm
SGN
-
LAS
23h 25m
2 stops
$792STARLUX Airlines
Thu, Feb 26 - Wed, Apr 1
Cathay Pacific Logo
7:00 am - 12:20 am
LAS
-
SGN
26h 20m
2 stops
Cathay Pacific Logo
7:15 am - 2:39 pm
SGN
-
LAS
21h 24m
2 stops
$795Cathay Pacific
Booking Insights

KAYAK's insights & trends for Las Vegas to Vietnam flights

Get data-powered insights and trends into flights from Las Vegas to Vietnam to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Las Vegas to Vietnam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Las Vegas to Vietnam, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Las Vegas to Vietnam is September, when tickets cost $752 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,490 and $1,457 respectively.

How far in advance should I book a flight from Las Vegas to Vietnam?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Las Vegas to Vietnam, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Las Vegas to Vietnam, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$318
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Las Vegas to Hanoi

FAQs - booking Vietnam flights

  • How does KAYAK find such low prices on flights from Las Vegas to Vietnam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Las Vegas to Vietnam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Las Vegas to Vietnam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Las Vegas to Vietnam is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Las Vegas to Vietnam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Las Vegas to Vietnam with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Las Vegas to Vietnam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Las Vegas to Vietnam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Las Vegas to Vietnam

 
Need help choosing which airline to fly with from Las Vegas 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.
8.4
Korean AirOverall score based on 1188 reviews
8.5Boarding
8.3Comfort
8.7Crew
8.2Entertainment
8.1Food
Airline reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

10.0 ExcellentVivian, Nov 2025
SEA - ICN
Read more Korean Air reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

This flight was a superior flight in all regards. Extremely pleasant experience.

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

Cabin Crew was excellent. They took care of everything requested. Flight was good

I was charged $200 for a 2nd checked bag, which is unreasonably high and feels like price gouging. Other than that the experience was excellent.

The ROOM was great. We would love to have it on all of our flights. LOL

I would prefer to fly with Japanese airlines over American ones. They have better food and service overall

United Airlines crew members do not know how to deal with emergency situation that caused our flight delay. For example, they should have asked the maintenance or seat belt repair personnel to come and fix the seat belt while they were looking for a volunteer to book another flight.

The pilot was kept warning about the weather terrifying us. The flight attendants were not warm or pleasant.

Entertainment and food is best. I love to use ana for a lots japanese movies…. Food was best

I couldn’t sit with my daughter. we are separate and both seat was not window or halway side. in the middle. if we sit together will be share comfort seat and more easy travel. this is bad.

First trip from Tulsa to Houston by air. It went by quickly. I watched half a movie and continued the rest on the next flight. Staff was considerate and helpful.

The meals were sufficient and tasty considering it was air travel food. Water coffee and juices offered each time a meal came by and water distributed between meals. It was good service in my opinion. Plenty of movies to enjoy. May not be the one you want but plenty of older movies and plenty of current ones as well. I enjoyed the trip.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

I didn't have much experience with Cathay Pacific airlines because of delay and missed connections, the bulk of the trip was on Japan Airlines.

Flight delayed first from bad weather, then after boarding there was a problem with the plane. We had to get off and onto another plane...connections were missed and the trip took an additional 10 hours!! Pre-paid seatting was not honored due ro last minute carrier changes. Most of the trip was on Japan Airline.

Flight from Hong Kong to LAX was late, the plane was grubby, overcrowded and hot. I recently flew Starlux and that was a MUCH better experience.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

My flight was suppose to be at 7:45pm to fly but it didnt fly out until 8:55 to dallas so then all of my other flights was late and delay ihad to wait at the airport for extra 14 hours to be able to get on a different plane

There were delays at boarding and landing. These events resulted in a tight transfer time in HK. Poor signage for transfers. Finally, lost luggage at final destination.

It was good. The planes needed to be updated though, they were dated and the entertainment systems were old. Service was amazing. The pre-booked meals were lacklustre.

Super delayed. Unnecessary. Need more competent people doing logistics to keep things moving on time. Totally unacceptable.

Flew from lax economy on cathay 777. Seat configuration 3-4-3. When the forward seat reclines it feels like someone is leaning forward and staring you. If you are slightly big tray tables will touch your abdomen even with seats upright. AVOID this above 777 configuration at all cost for a long flight. However their Airbus 350 3-3-3 configuration felt spacious and Seats wider.

Not much of anything could have been done better unless I had a first class ticket. I was literally 15 hours with an airline in the economy class. Very professional friendly and attentive crew. Good airline food, clean cabin, seating area and bathrooms. I've been 4 times back-and-forth with Cathay Pacific, and I would not choose another airline for this trip. Five out of five stars.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Everything you need to know for your flight from Las Vegas to Vietnam

Information on your arrival and departure airports