BOS - SUX

$346 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 5/6. 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

KAYAK searches 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
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Everything you should know

Cheapest round-trip
$497
United Airlines
Thu 5/14Fri 7/17
BOS - SUX • 1 stop
Cheapest one-way
$346
United Airlines
Wed 5/6
BOS - SUX • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Sioux City. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $403 (round-trip)
Chicago (ORD)
Shortest trip • 6h 34m (one-way)
Insights
Insights
Insights
Insights
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We hope you love your trip to Sioux City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Sioux City

Thu, May 14 - Fri, Jul 17
United Airlines Logo
8:39 pm - 10:41 am
BOS
-
SUX
15h 02m
1 stop
United Airlines Logo
11:32 am - 9:53 pm
SUX
-
BOS
9h 21m
2 stops
$497United Airlines
Thu, May 14 - Fri, Jul 17
United Airlines Logo
5:19 pm - 10:41 am
BOS
-
SUX
18h 22m
2 stops
United Airlines Logo
11:32 am - 9:53 pm
SUX
-
BOS
9h 21m
2 stops
$502United Airlines
Sat, May 9 - Wed, May 13
United Airlines Logo
7:09 am - 10:41 am
BOS
-
SUX
28h 32m
1 stop
United Airlines Logo
12:55 pm - 11:59 pm
SUX
-
BOS
10h 04m
2 stops
$512United Airlines
Wed, Apr 8 - Sat, Apr 11
United Airlines Logo
3:05 pm - 10:46 am
BOS
-
SUX
20h 41m
1 stop
United Airlines Logo
12:55 pm - 11:01 am
SUX
-
BOS
21h 06m
1 stop
$515United Airlines
Sat, May 9 - Wed, May 13
United Airlines Logo
7:10 pm - 10:41 am
BOS
-
SUX
16h 31m
2 stops
United Airlines Logo
12:55 pm - 11:59 pm
SUX
-
BOS
10h 04m
2 stops
$517United Airlines
Wed, Apr 8 - Sat, Apr 11
United Airlines Logo
11:17 am - 10:46 am
BOS
-
SUX
24h 29m
2 stops
United Airlines Logo
12:55 pm - 9:25 am
SUX
-
BOS
19h 30m
1 stop
$525United Airlines
Sat, May 9 - Wed, May 13
United Airlines Logo
4:35 pm - 6:06 pm
BOS
-
SUX
26h 31m
1 stop
United Airlines Logo
12:55 pm - 11:59 pm
SUX
-
BOS
10h 04m
2 stops
$527United Airlines
Sat, May 9 - Wed, May 13
United Airlines Logo
7:10 pm - 6:06 pm
BOS
-
SUX
23h 56m
2 stops
United Airlines Logo
12:55 pm - 11:59 pm
SUX
-
BOS
10h 04m
2 stops
$532United Airlines
Wed, Apr 8 - Sat, Apr 11
United Airlines Logo
4:50 pm - 10:46 am
BOS
-
SUX
18h 56m
1 stop
United Airlines Logo
12:55 pm - 9:25 am
SUX
-
BOS
19h 30m
1 stop
$535United Airlines
Wed, Apr 8 - Sat, Apr 11
United Airlines Logo
1:30 pm - 10:46 am
BOS
-
SUX
22h 16m
2 stops
United Airlines Logo
12:55 pm - 11:59 pm
SUX
-
BOS
10h 04m
2 stops
$545United Airlines
Booking Insights

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

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 is the most popular layover airport when flying from Boston to Sioux City?

Percentage of 1-stop round-trip flights from Boston to Sioux City chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 80% of KAYAK users who clicked on 1-stop flights from Boston to Sioux City picked an itinerary connecting there.

What is the cheapest layover airport when flying from Boston to Sioux City?

Average round-trip price for 1-stop flights from Boston to Sioux City clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Denver (DEN) offer the most affordable fares, with an average round-trip price of $403.

Which layover airport offers the shortest total travel time from Boston to Sioux City?

Shortest average total travel time for 1-stop one-way flights from Boston to Sioux City via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Chicago (ORD) for the shortest journey. The average one-way travel time for flights connecting there is 6h 34m.

Which layover airport has the quickest connection when flying from Boston to Sioux City?

Average layover duration at different layover airports for 1-stop one-way flights from Boston to Sioux City, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Denver (DEN) often has the shortest layovers from Boston to Sioux City, with an average of 1h 21m.

Find deals

Good to know

Cheapest flight$346
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 $346 for a one-way ticket and $497 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.

Reviews of the 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 9431 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

OK, we were delayed and had to de plane and reboard.

6.0 GoodJamie, Mar 2026
LAX - EWR
Read more United Airlines reviews

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

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

Information on your arrival and departure airports

Boston (BOS)
Sioux City (SUX)