BOS - SUX

$356 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 5/19. 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
$506
United Airlines
Sat 6/6Sat 6/13
BOS - SUX • 2 stops
Cheapest one-way
$356
United Airlines
Tue 5/19
BOS - SUX • 2 stops
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 $353 (round-trip)
Chicago (ORD)
Shortest trip • 6h 34m (one-way)
Insights
Insights
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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

Sat, Jun 6 - Sat, Jun 13
United Airlines Logo
7:30 am - 5:53 pm
BOS
-
SUX
11h 23m
2 stops
United Airlines Logo
11:32 am - 11:21 pm
SUX
-
BOS
10h 49m
2 stops
$506United Airlines
Sat, Jun 6 - Sat, Jun 13
United Airlines Logo
7:30 am - 5:53 pm
BOS
-
SUX
11h 23m
2 stops
United Airlines Logo
8:08 am - 5:29 pm
SUX
-
BOS
8h 21m
1 stop
$572United Airlines
Fri, Oct 23 - Sun, Oct 25
United Airlines Logo
6:00 am - 5:54 pm
BOS
-
SUX
12h 54m
3 stops
United Airlines Logo
9:03 am - 12:47 pm
SUX
-
BOS
26h 44m
1 stop
$617United Airlines
Fri, Oct 23 - Sun, Oct 25
United Airlines Logo
7:10 am - 5:54 pm
BOS
-
SUX
11h 44m
1 stop
United Airlines Logo
9:03 am - 10:53 am
SUX
-
BOS
24h 50m
1 stop
$626United Airlines
Sat, Jun 6 - Sat, Jun 13
United Airlines Logo
7:45 am - 10:57 am
BOS
-
SUX
28h 12m
1 stop
United Airlines Logo
11:32 am - 9:59 pm
SUX
-
BOS
9h 27m
1 stop
$632United Airlines
Fri, Oct 23 - Sun, Oct 25
United Airlines Logo
6:33 pm - 10:39 am
BOS
-
SUX
17h 06m
2 stops
United Airlines Logo
9:03 am - 9:24 am
SUX
-
BOS
23h 21m
1 stop
$660United Airlines
Sat, Jun 6 - Sat, Jun 13
United Airlines Logo
6:00 am - 5:53 pm
BOS
-
SUX
12h 53m
3 stops
United Airlines Logo
11:32 am - 11:21 pm
SUX
-
BOS
10h 49m
2 stops
$674United Airlines
Fri, Jul 31 - Sun, Aug 2
United Airlines Logo
4:57 pm - 11:41 pm
BOS
-
SUX
7h 44m
1 stop
United Airlines Logo
6:35 pm - 5:58 am
SUX
-
BOS
10h 23m
1 stop
$770United Airlines
Fri, Oct 23 - Sun, Oct 25
United Airlines Logo
6:00 am - 5:54 pm
BOS
-
SUX
12h 54m
3 stops
United Airlines Logo
6:46 pm - 10:31 am
SUX
-
BOS
14h 45m
2 stops
$829United Airlines
Fri, Jul 31 - Sun, Aug 2
United Airlines Logo
4:57 pm - 11:41 pm
BOS
-
SUX
7h 44m
1 stop
United Airlines Logo
6:35 pm - 10:20 am
SUX
-
BOS
14h 45m
2 stops
$834United 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 – 88% 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 $353.

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 16m.

Find deals

Good to know

Cheapest flight$356
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 $356 for a one-way ticket and $506 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 9694 reviews
7.3Comfort
7.7Boarding
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

6.0 GoodAnonymous, May 2026
OMA - DEN
Read more United Airlines reviews

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

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)