$567 Find Cheap Flights from Sioux City 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 Sioux City to Vietnam departing on 1/7. 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

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Flight Deals

Book Cheap Sioux City 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 Sioux City 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 one-way flight deals from Sioux City to Vietnam

Wed, Jan 7
United Airlines Logo
6:00 am - 10:55 pmSUX-SGN
27h 55m3 stops
$567United Airlines
Find Deal
Tue, Jan 6
United Airlines Logo
12:45 pm - 9:50 pmSUX-SGN
68h 05m2 stops
$574United Airlines
Find Deal
Tue, Jan 6
United Airlines Logo
6:00 am - 10:55 pmSUX-SGN
51h 55m3 stops
$581United Airlines
Find Deal
Mon, Jan 5
United Airlines Logo
6:54 pm - 10:55 pmSUX-SGN
63h 01m3 stops
$587United Airlines
Find Deal
Fri, Jan 9
United Airlines Logo
6:00 am - 10:55 pmSUX-SGN
27h 55m3 stops
$610United Airlines
Find Deal
Fri, Jan 9
United Airlines Logo
12:45 pm - 9:50 pmSUX-SGN
44h 05m2 stops
$611United Airlines
Find Deal
Thu, Jan 8
United Airlines Logo
12:45 pm - 9:50 pmSUX-SGN
68h 05m2 stops
$618United Airlines
Find Deal
Thu, Jan 8
United Airlines Logo
6:00 am - 10:55 pmSUX-SGN
51h 55m3 stops
$625United Airlines
Find Deal
Mon, Jan 5
United Airlines Logo
7:50 am - 9:50 pmSUX-SGN
49h 00m2 stops
$678United Airlines
Find Deal
Sun, Jan 4
United Airlines Logo
6:54 pm - 10:55 pmSUX-SGN
63h 01m3 stops
$698United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Sioux City to Vietnam flights

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

Which airlines fly non-stop between Sioux City and Vietnam?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Sioux City to Vietnam.

There is just one airline that flies from Sioux City to Vietnam direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Ho Chi Minh City (SGN) and costs $1,026.

Good to know

Cheapest flight$567
Flight from Sioux City to Ho Chi Minh City

FAQs - booking Vietnam flights

  • How does KAYAK find such low prices on flights from Sioux City 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 Sioux City to Vietnam.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sioux City 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 Sioux City 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 Sioux City 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 Sioux City 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 Sioux City to Vietnam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Vietnam?

    The cheapest time of day to fly to Vietnam is generally in the morning, when round-trip flights cost $1,558 on average. The most expensive time of day to fly to Vietnam is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,558.

Reviews of the top airline flying from Sioux City to Vietnam

 
Need help choosing which airline to fly with from Sioux City 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.
7.4
United AirlinesOverall score based on 8978 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

Flight was good but there are way to many announcements for credit cards etc.

8.0 Excellentryan, Oct 2025DEN - YYC
Read more United Airlines reviews

Flight was good but there are way to many announcements for credit cards etc.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

Everything you need to know for your flight from Sioux City to Vietnam

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