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$487+ Cheap flights from Sioux City to Boston (SUX - BOS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — BOS
mei. 4 — mei. 111
ma 5/4
ma 5/11
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Sioux City to Boston

Cheapest flights from Sioux City to Boston
Explore the most affordable flight options available from Sioux City to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on april 4, 2026.

This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/2812:55 pm
SUX
-
BOS
1 stop5h 46m
United Airlines
za 5/24:52 pm
BOS
-
SUX
1 stop18h 49m
United Airlines
Deal found 3/30$487
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 4/3012:55 pm
SUX
-
BOS
1 stop11h 04m
United Airlines
za 5/27:27 pm
BOS
-
SUX
2 stops16h 14m
United Airlines
Deal found 3/30$520
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/316:00 am
SUX
-
BOS
1 stop8h 37m
United Airlines
za 5/24:52 pm
BOS
-
SUX
1 stop18h 49m
United Airlines
Deal found 3/30$587
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/316:00 am
SUX
-
BOS
1 stop8h 37m
United Airlines
ma 4/64:50 pm
BOS
-
SUX
1 stop7h 54m
United Airlines
Deal found 3/30$594
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/3112:55 pm
SUX
-
BOS
1 stop8h 04m
United Airlines
zo 5/36:00 am
BOS
-
SUX
1 stop13h 06m
United Airlines
Deal found 3/30$598
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/316:00 am
SUX
-
BOS
1 stop8h 37m
United Airlines
do 4/98:30 am
BOS
-
SUX
2 stops10h 26m
United Airlines
Deal found 3/30$604

Find flight deals from Sioux City to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated april 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(United Airlines)
Provider with most accurate pricing for Sioux City Sioux Gateway-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Boston Logan Intl flights.
Search Deals
From Sioux City Sioux Gateway to Boston Logan Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated april 4, 2026.
Use the filters below to find and compare flights from Sioux City to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Sioux CityBoston

SUX - BOS

SUXBOS

Sioux City Sioux Gateway

do 4/30

6:00 am-3:38 pm

1 stop8h 38m

Boston Logan Intl

za 5/2

12:30 pm-6:06 pm

1 stop6h 36m

$592

Sioux CityBoston

SUX - BOS

SUXBOS

Sioux City Sioux Gateway

wo 4/29

12:55 pm-9:59 pm

1 stop8h 04m

Boston Logan Intl

vr 5/1

3:08 pm-11:32 pm

1 stop9h 24m

$607

Sioux CityBoston

SUX - BOS

SUXBOS

Sioux City Sioux Gateway

za 9/19

11:32 am-11:42 pm

1 stop11h 10m

Boston Logan Intl

zo 9/27

12:20 pm-5:54 pm

1 stop6h 34m

$646

Sioux CityBoston

SUX - BOS

SUXBOS

Sioux City Sioux Gateway

zo 6/21

11:32 am-5:58 am

1 stop17h 26m

Boston Logan Intl

di 6/23

8:39 pm-10:57 am

1 stop15h 18m

$781

Sioux CityBoston

SUX - BOS

SUXBOS

Sioux City Sioux Gateway

vr 4/17

6:00 am-9:11 am

2 stops26h 11m

Boston Logan Intl

di 4/21

7:30 pm-5:56 pm

2 stops23h 26m

$883

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Sorted by cheapest first

Compare providers for flights from Sioux City to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux City to Boston in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sioux City-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux City-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux City-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux City-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sioux City to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sioux City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Sioux City to Boston?

Currently, January is the cheapest month in which you can book a flight from Sioux City to Boston (average of $100). Flying from Sioux City to Boston in February is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated april 4, 2026.
Peruse reviews from past customers who have flown with United Airlines from Sioux City to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,541 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,541 reviews
United Airlines
7.4
Good
9,541 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sioux City to Boston?

    Airlines like United Airlines fly from Sioux City to Boston in about 8h 38m. The time it takes to get you to your destination can typically vary by up to . Sioux City and Boston are separated by a distance of 1289 mi.

  • What is the cheapest airline to fly from Sioux City to Boston round-trip?

    United Airlines, at $253, was found to be the cheapest airline from Sioux City to Boston..

  • Can I find deals for flights from Sioux City to Boston that include hotel bookings?

    Yes. In addition to deals on Sioux City to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux City to Boston.

  • Can I find deals for business class flights from Sioux City to Boston?

    Yes. Cheapflights offers flight deals from Sioux City to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Sioux City to Boston (average of $100). Flying from Sioux City to Boston in February is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Seabrook
Cranston
Chelsea
Warwick
Peabody
Waltham
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Lowell

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Sioux City to Boston

Discover the top airline that operate flights from Sioux City to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated april 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$253Average$532FlexibilityNo cancel feeOn-time69%

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