Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

BOS - SUX

$359 Find cheap flights from Boston to Sioux City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sioux City departing on 8/10. 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
0 bags
Fri 7/12
Fri 7/19

Search hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sioux City, as well as popular online travel agencies
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Boston to Sioux City (BOS-SUX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sioux City 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 and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 10:53 pmBOS-SUX
17h 53m1 stop
7:01 pm - 6:00 amSUX-BOS
9h 59m1 stop
$488United Airlines
Find Deal
Fri, Jul 26 - Sun, Jul 28
6:00 am - 10:53 pmBOS-SUX
17h 53m1 stop
6:15 am - 12:45 amSUX-BOS
17h 30m1 stop
$553United Airlines
Find Deal
Mon, Jul 15 - Thu, Jul 18
7:30 am - 6:26 pmBOS-SUX
11h 56m1 stop
6:15 am - 12:45 amSUX-BOS
17h 30m1 stop
$554United Airlines
Find Deal
Tue, Jul 16 - Thu, Jul 18
9:30 am - 10:53 pmBOS-SUX
14h 23m2 stops
6:15 am - 12:45 amSUX-BOS
17h 30m1 stop
$562United Airlines
Find Deal
Mon, Jul 15 - Thu, Jul 18
6:00 am - 10:53 pmBOS-SUX
17h 53m1 stop
6:15 am - 2:40 pmSUX-BOS
7h 25m1 stop
$563United Airlines
Find Deal
Thu, Jul 18 - Sat, Jul 20
5:30 am - 6:26 pmBOS-SUX
13h 56m2 stops
6:15 am - 12:45 amSUX-BOS
17h 30m1 stop
$573United Airlines
Find Deal
Tue, Jul 16 - Thu, Jul 18
8:00 am - 10:53 pmBOS-SUX
15h 53m1 stop
7:01 pm - 7:52 amSUX-BOS
11h 51m2 stops
$585United Airlines
Find Deal
Thu, Jul 18 - Sat, Jul 20
9:30 am - 10:53 pmBOS-SUX
14h 23m2 stops
7:01 pm - 7:52 amSUX-BOS
11h 51m2 stops
$614United Airlines
Find Deal
Mon, Jul 15 - Thu, Jul 18
5:30 am - 6:26 pmBOS-SUX
13h 56m2 stops
7:01 pm - 7:52 amSUX-BOS
11h 51m2 stops
$625United Airlines
Find Deal
Tue, Jul 16 - Thu, Jul 18
5:30 am - 10:53 pmBOS-SUX
18h 23m2 stops
7:01 pm - 7:52 amSUX-BOS
11h 51m2 stops
$655United Airlines
Find Deal
Thu, Jul 18 - Sat, Jul 20

Flights from Boston to Sioux City - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Boston to Sioux City?

The average price of all flights from Boston to Sioux City clicked on KAYAK for each day over the last 12 months.
When flying from Boston to Sioux City, you should consider leaving on a Monday and avoid Thursdays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Mondays and the most expensive ones on Saturdays.

Good to know

Cheapest flight

$359
Flight from Boston to Sioux City

When to book flights from Boston to Sioux City

Are your dates flexible? Find out the best times to travel from Boston to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Sioux City

  • What is the cheapest flight from Boston to Sioux City?

    In the last 3 days, the lowest price for a flight from Boston to Sioux City was $359 for a one-way ticket and $488 for a round-trip.

  • Do I need a passport to fly between Boston and Sioux City?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Boston to Sioux City?

    When flying out of Boston you will be using Boston Logan Intl. You will be landing at Sioux City, also known as Sioux City Sioux Gateway.

  • Which aircraft models fly most regularly from Boston to Sioux City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Sioux City?

    Star Alliance is the only airline alliance operating flights between Boston and Sioux City.

  • How does KAYAK find such low prices on flights from Boston to Sioux City?

    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 Boston to Sioux City.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Boston 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 Boston to Sioux City?

    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 to Sioux City with an airline and back to Boston with another airline. Booking your flights between Boston and SUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sioux City?

    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 to Sioux City from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Boston to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Boston to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Sioux City? 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 10000 reviews
7.1Entertainment
6.7Food
7.7Boarding
8.1Crew
7.2Comfort
Airline reviews

The entertainment wasn’t playing in the app or online.

4.0 OkayJohn, Jun 2024SFO - DCA
Read more about United Airlines reviews

The entertainment wasn’t playing in the app or online.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Book cheap flights from Boston to Sioux City

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Sioux City found on KAYAK in the last 72 hours.
8/10Sat
2 stopsUnited Airlines
28h 48mBOS-SUX
$359
6/15Sat
2 stopsUnited Airlines
27h 57mBOS-SUX
$386
6/15Sat
1 stopUnited Airlines
11h 46mBOS-SUX
$427
8/10Sat
1 stopUnited Airlines
5h 19mBOS-SUX
$440
6/15Sat
3 stopsUnited Airlines
32h 56mBOS-SUX
$481
8/10Sat
3 stopsUnited Airlines
28h 09mBOS-SUX
$482

Search by stops

Search by airline

Search by price

Boston - Sioux City Flights

Departure:

Boston (BOS)United States

Destination:

Sioux City (SUX)United States

Return flight deals:

Sioux City - Boston

Cabin classes:

Browse origins:

Browse destinations: